https://ntp.niehs.nih.gov/go/19286

TDMS Study 96017-06 Pathology Tables

NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04
Route: DOSED WATER                                                                                                Time: 09:28:00
                                                          FINAL#1 MICE
       Facility:  Southern Research Institute
       Chemical CAS #:  631-64-1
       Lock Date:  11/15/02
       Cage Range:  All
       Reasons For Removal:    All
       Removal Date Range:     All
       Treatment Groups:       Include All
                                                              Page   1
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 1| 2| 3| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 5| 3| 3| 2| 3| 5| 3| 3| 3|             
                                           | 7| 7| 4| 1| 7| 7| 7| 7| 7| 3| 5| 5| 5| 5| 5| 5| 5| 5| 5| 0| 5| 3| 5| 5| 5|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0 MG/L                                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |__________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Edema                                |                                     2              2                     |             
                                           |__________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |                            4                                             |             
      Clear Cell Focus                     |       X                                                                  |             
      Eosinophilic Focus                   |                X                    X  X  X           X                  |             
      Hematopoietic Cell Proliferation     |                                                 2                        |             
      Hyperplasia, Lymphoid                |                   4                    3                                 |             
      Infiltration Cellular, Mixed Cell    | 4                    2              1                                   1|             
      Mixed Cell Focus                     |                                                       X                  |             
      Necrosis, Focal                      |                                                                         1|             
      Tension Lipidosis                    |                                                                          |             
      Hepatocyte, Vacuolization Cytoplasmic|                                                                          |             
      Kupffer Cell, Pigmentation           | 3                                                                       2|             
                                           |__________________________________________________________________________|             
   Mesentery                               | +     +  +  +           +  +     +  +  +     +  +     +     +  +  +      |             
      Fat, Necrosis                        |       4  4  2                    4  4  2     2  4           4  4  3      |             
                                           |__________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Acinus, Cytoplasmic Alteration       | 3                                                                        |             
                                           |__________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page   2                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 1| 2| 3| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 5| 3| 3| 2| 3| 5| 3| 3| 3|             
                                           | 7| 7| 4| 1| 7| 7| 7| 7| 7| 3| 5| 5| 5| 5| 5| 5| 5| 5| 5| 0| 5| 3| 5| 5| 5|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0 MG/L                                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
      Hyperplasia, Lymphoid                |                3        3                 3  3                    3      |             
                                           |__________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic                |                                                                          |             
      Ulcer                                |                                                                          |             
      Epithelium, Hyperplasia              |          1                                            1                  |             
                                           |__________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Tongue                                  | +                                                                        |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Blood Vessel                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Accessory Adrenal Cortical Nodule    | 3                          3        3                                   3|             
                                           |__________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  M  +  +  +  +  +  +  +  +  M  +  M  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                                          |             
                                           |__________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Pars Distalis, Angiectasis           |                                                                          |             
      Pars Distalis, Cyst                  | 3                 3                                                      |             
      Pars Distalis, Hyperplasia, Focal    |             2           2                                                |             
      Pars Intermedia, Hyperplasia, Focal  |                                                       3                  |             
                                           |__________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration, Cystic                 | 2                 1           2        1           1              1      |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page   3                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 1| 2| 3| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 5| 3| 3| 2| 3| 5| 3| 3| 3|             
                                           | 7| 7| 4| 1| 7| 7| 7| 7| 7| 3| 5| 5| 5| 5| 5| 5| 5| 5| 5| 0| 5| 3| 5| 5| 5|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0 MG/L                                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
      Follicular Cell, Hyperplasia         |       2  1                                                           1   |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +|             
      Angiectasis                          |             3                                            3               |             
      Cyst                                 |                   3     3              3                 4        3     3|             
      Corpus Luteum, Hyperplasia           |                                                                   3      |             
      Granulosa Cell, Hyperplasia          |                                                                          |             
                                           |__________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Cystic                  | 3  4  4  4  4  4  3  4        3  3  2     4  2     4  4  4  4  3  3  4  4|             
      Inflammation, Chronic                |                                           2                              |             
      Metaplasia, Squamous                 |                                           3                              |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          | 2     2  3                 4  2           3     3  4     2  4            |             
                                           |__________________________________________________________________________|             
   Lymph Node                              |                      +     +     +        +     +  +        +  +         |             
      Iliac, Hemorrhage                    |                                                                          |             
      Iliac, Hyperplasia, Lymphoid         |                      2                                                   |             
      Iliac, Pigmentation                  |                                                                          |             
      Mediastinal, Hemorrhage              |                                                 2                        |             
      Mediastinal, Hyperplasia, Lymphoid   |                                                 2                        |             
      Mediastinal, Pigmentation            |                                                                2         |             
      Renal, Hyperplasia, Lymphoid         |                                           2                              |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +|             
      Hematopoietic Cell Proliferation     | 1                                                                        |             
      Hyperplasia, Lymphoid                | 3        2  2  2     3  3              2                       2         |             
      Pigmentation                         | 2        2  2           2        2  2  3     3     2  3        2        2|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page   4                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 1| 2| 3| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 5| 3| 3| 2| 3| 5| 3| 3| 3|             
                                           | 7| 7| 4| 1| 7| 7| 7| 7| 7| 3| 5| 5| 5| 5| 5| 5| 5| 5| 5| 0| 5| 3| 5| 5| 5|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0 MG/L                                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hematopoietic Cell Proliferation     |    1                                                     2               |             
      Hemorrhage                           |                                                                          |             
      Hyperplasia, Lymphoid                |    3  2        2                                         2              3|             
                                           |__________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hematopoietic Cell Proliferation     | 2  1     4  2  1  1  1     3              2  2  4  3  1  3     3  3  2   |             
      Necrosis                             |                                                                          |             
      Pigmentation                         |       3                                               3           3      |             
      Lymphoid Follicle, Hyperplasia       |       2           2                                                      |             
                                           |__________________________________________________________________________|             
   Thymus                                  | +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              | 3     2                                         3              3         |             
      Hemorrhage                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          | 1                                                              2         |             
                                           |__________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Ulcer                                |                      1                                                   |             
      Epidermis, Hyperplasia               |                      3                                                   |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Myelofibrosis                        |                                                                          |             
                                           |__________________________________________________________________________|             
   Skeletal Muscle                         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Compression                          |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page   5                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 1| 2| 3| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 5| 3| 3| 2| 3| 5| 3| 3| 3|             
                                           | 7| 7| 4| 1| 7| 7| 7| 7| 7| 3| 5| 5| 5| 5| 5| 5| 5| 5| 5| 0| 5| 3| 5| 5| 5|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0 MG/L                                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 RESPIRATORY SYSTEM - cont                 |                                                                          |             
                                           |__________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |                                              2           2               |             
      Infiltration Cellular, Histiocyte    |                            3                                             |             
      Alveolar Epithelium, Hyperplasia     |                                                                          |             
                                           |__________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic                |                      2                                                   |             
      Cornea, Hyperplasia                  |                      2                                                   |             
                                           |__________________________________________________________________________|             
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Focal                   |                                                 3                        |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |                         3           2  2  2                              |             
      Infarct                              |                2                                                     2   |             
      Nephropathy                          |       1        2           2           2  1                              |             
      Renal Tubule, Accumulation, Hyaline  |                                                                          |             
          Droplet                          |                                                                          |             
      Renal Tubule, Pigmentation           |                                                                          |             
                                           |__________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Edema                                |                            3                                             |             
      Hyperplasia, Lymphoid                |                                           3              3              3|             
 __________________________________________|__________________________________________________________________________              
                                                             Page   6                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 6|            |
                             DAY ON TEST   | 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 6| 3| 3| 9| 3| 3| 3| 1| 3| 3| 3| 3| 3| 7| 5|            |
                                           | 7| 7| 7| 7| 7| 4| 4| 4| 4| 4| 3| 6| 6| 1| 6| 7| 7| 0| 7| 7| 5| 5| 5| 4| 8|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|      A     |
    0 MG/L                                 | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Gallbladder                             | +  +  A  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  A|  47        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +|  47        |
      Edema                                |                                                                          |      2  2.0|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  A|  46        |
                                           |__________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  A|  46        |
                                           |__________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  A  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A|  45        |
                                           |__________________________________________________________________________|____________|
   Liver                                   | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Angiectasis                          |                                                                          |      1  4.0|
      Clear Cell Focus                     |          X                                                              X|      3     |
      Eosinophilic Focus                   |    X                                                        X            |      7     |
      Hematopoietic Cell Proliferation     |                         3                                                |      2  2.5|
      Hyperplasia, Lymphoid                |                                                                          |      2  3.5|
      Infiltration Cellular, Mixed Cell    | 3                                         2        2                     |      7  2.1|
      Mixed Cell Focus                     |                                                          X               |      2     |
      Necrosis, Focal                      |                                           2                          2   |      3  1.7|
      Tension Lipidosis                    |                               X                                          |      1     |
      Hepatocyte, Vacuolization Cytoplasmic|                      4                 3                                 |      2  3.5|
      Kupffer Cell, Pigmentation           |                                                    2                     |      3  2.3|
                                           |__________________________________________________________________________|____________|
   Mesentery                               | +     +  +     +     +     +  +  +        +        +  +           +  +   |  28        |
      Fat, Necrosis                        | 4     3  4           3     4  3  3        3        4              2  2   |     22  3.3|
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page   7                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 6|            |
                             DAY ON TEST   | 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 6| 3| 3| 9| 3| 3| 3| 1| 3| 3| 3| 3| 3| 7| 5|            |
                                           | 7| 7| 7| 7| 7| 4| 4| 4| 4| 4| 3| 6| 6| 1| 6| 7| 7| 0| 7| 7| 5| 5| 5| 4| 8|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|      A     |
    0 MG/L                                 | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
   Pancreas                                | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Acinus, Cytoplasmic Alteration       |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Lymphoid                |          2     3  3  3           2  3        2     2     3     2         |     15  2.7|
                                           |__________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Inflammation, Chronic                |                                                    3                     |      1  3.0|
      Ulcer                                |                      2                                                   |      1  2.0|
      Epithelium, Hyperplasia              |                      1                             3                     |      4  1.5|
                                           |__________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Tongue                                  |                               +                                          |   2        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Blood Vessel                            |                            +                                             |   1        |
                                           |__________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Accessory Adrenal Cortical Nodule    | 3  3        3                             3        3                     |      9  3.0|
                                           |__________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia                          |                                  2                             2         |      2  2.0|
                                           |__________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  M  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +|  45        |
      Cyst                                 |                                  3                       3               |      2  3.0|
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page   8                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 6|            |
                             DAY ON TEST   | 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 6| 3| 3| 9| 3| 3| 3| 1| 3| 3| 3| 3| 3| 7| 5|            |
                                           | 7| 7| 7| 7| 7| 4| 4| 4| 4| 4| 3| 6| 6| 1| 6| 7| 7| 0| 7| 7| 5| 5| 5| 4| 8|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|      A     |
    0 MG/L                                 | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
   Pituitary Gland                         | +  +  M  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +|  47        |
      Pars Distalis, Angiectasis           |             2     3                                                      |      2  2.5|
      Pars Distalis, Cyst                  |                                                                          |      2  3.0|
      Pars Distalis, Hyperplasia, Focal    |                   2                                            4         |      4  2.5|
      Pars Intermedia, Hyperplasia, Focal  |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration, Cystic                 |                               2              2           2              3|     10  1.7|
      Follicular Cell, Hyperplasia         |    1           1                             1        1        1         |      8  1.1|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Angiectasis                          | 2                                         4                 2            |      5  2.8|
      Cyst                                 | 3  3     3        3              3     3     3           3               |     14  3.1|
      Corpus Luteum, Hyperplasia           |                                                                          |      1  3.0|
      Granulosa Cell, Hyperplasia          |                                                          2               |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Cystic                  | 2  4     3  2  2  3  4  4  2  2  4  4  2  2  4  4  4  4  2  4  4  4     2|     44  3.3|
      Inflammation, Chronic                |                                                                          |      1  2.0|
      Metaplasia, Squamous                 |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |                      3  4     2           3        4  4     2  2  2     2|     20  2.9|
                                           |__________________________________________________________________________|____________|
   Lymph Node                              |                      +  +                             +              +   |  12        |
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page   9                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 6|            |
                             DAY ON TEST   | 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 6| 3| 3| 9| 3| 3| 3| 1| 3| 3| 3| 3| 3| 7| 5|            |
                                           | 7| 7| 7| 7| 7| 4| 4| 4| 4| 4| 3| 6| 6| 1| 6| 7| 7| 0| 7| 7| 5| 5| 5| 4| 8|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|      A     |
    0 MG/L                                 | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
      Iliac, Hemorrhage                    |                      3                                                   |      1  3.0|
      Iliac, Hyperplasia, Lymphoid         |                                                                          |      1  2.0|
      Iliac, Pigmentation                  |                      3                                                   |      1  3.0|
      Mediastinal, Hemorrhage              |                                                                          |      1  2.0|
      Mediastinal, Hyperplasia, Lymphoid   |                                                                          |      1  2.0|
      Mediastinal, Pigmentation            |                                                                          |      1  2.0|
      Renal, Hyperplasia, Lymphoid         |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Hematopoietic Cell Proliferation     |                                                                          |      1  1.0|
      Hyperplasia, Lymphoid                |                   2           2           3              2     2         |     13  2.3|
      Pigmentation                         | 2                 2           2           2                    2  2      |     18  2.2|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hematopoietic Cell Proliferation     |                                                                          |      2  1.5|
      Hemorrhage                           | 4                                                                        |      1  4.0|
      Hyperplasia, Lymphoid                | 2                 2  2                                                   |      8  2.3|
                                           |__________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hematopoietic Cell Proliferation     | 2  2     1  1  3  1  2  3  3     1  2     4        4     1  1     3     4|     34  2.2|
      Necrosis                             |                                                                   4      |      1  4.0|
      Pigmentation                         |                               3        2                                 |      5  2.8|
      Lymphoid Follicle, Hyperplasia       |                   3  3        2              4  2        2               |      8  2.5|
                                           |__________________________________________________________________________|____________|
   Thymus                                  | +  +  A  +  +  +  M  +  +  +  +  +  +  +  M  +  +  I  +  +  M  +  +  +  +|  44        |
      Atrophy                              |                      4  3              3              3                  |      8  3.0|
      Hemorrhage                           |                                                          3               |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |                         4  1  1                                          |      5  1.8|
                                           |__________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  10                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 6|            |
                             DAY ON TEST   | 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 6| 3| 3| 9| 3| 3| 3| 1| 3| 3| 3| 3| 3| 7| 5|            |
                                           | 7| 7| 7| 7| 7| 4| 4| 4| 4| 4| 3| 6| 6| 1| 6| 7| 7| 0| 7| 7| 5| 5| 5| 4| 8|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|      A     |
    0 MG/L                                 | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 INTEGUMENTARY SYSTEM - cont               |                                                                          |            |
      Ulcer                                |                         3                                                |      2  2.0|
      Epidermis, Hyperplasia               |                         4                                                |      2  3.5|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Myelofibrosis                        |                                                 2                        |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Skeletal Muscle                         |                +     +                                                  +|   3        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Compression                          |                         3                                                |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Lymphoid                |                   2                 2           2                        |      5  2.0|
      Infiltration Cellular, Histiocyte    |                                                                          |      1  3.0|
      Alveolar Epithelium, Hyperplasia     |          3                 1        1                                    |      3  1.7|
                                           |__________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic                |                         1                                                |      2  1.5|
      Cornea, Hyperplasia                  |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Harderian Gland                         | +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia, Focal                   |                               3                                          |      2  3.0|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  11                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 6|            |
                             DAY ON TEST   | 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 6| 3| 3| 9| 3| 3| 3| 1| 3| 3| 3| 3| 3| 7| 5|            |
                                           | 7| 7| 7| 7| 7| 4| 4| 4| 4| 4| 3| 6| 6| 1| 6| 7| 7| 0| 7| 7| 5| 5| 5| 4| 8|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|      A     |
    0 MG/L                                 | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 URINARY SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Kidney                                  | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia, Lymphoid                |                                              2     3     2               |      7  2.3|
      Infarct                              |                         1                                                |      3  1.7|
      Nephropathy                          |          1     1     1     1              3  1     4           1  2      |     14  1.6|
      Renal Tubule, Accumulation, Hyaline  |                                                                          |            |
          Droplet                          |                      3                                                   |      1  3.0|
      Renal Tubule, Pigmentation           |                                           4                              |      1  4.0|
                                           |__________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Edema                                |       3                                                                  |      2  3.0|
      Hyperplasia, Lymphoid                |                                                                          |      3  3.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  12                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 4| 7| 7| 7| 7| 7| 7| 4| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 1| 3| 8| 1| 3| 3| 3| 3| 1| 9| 3| 3| 3| 3| 3| 3| 8| 3| 5| 3| 3| 2|             
                                           | 5| 5| 5| 0| 5| 3| 5| 6| 6| 6| 6| 5| 0| 6| 6| 6| 6| 6| 6| 7| 6| 9| 6| 6| 4|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    50 MG/L                                | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |__________________________________________________________________________|             
   Esophagus                               | +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Rectum                 | +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M|             
      Edema                                |                                                                          |             
      Inflammation, Chronic                |                                                                          |             
                                           |__________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Epithelium, Hyperplasia              |                                                                          |             
                                           |__________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |             2                                                            |             
                                           |__________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic                |                      3                                                   |             
                                           |__________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |                                                                          |             
      Basophilic Focus                     |                                                                          |             
      Clear Cell Focus                     |                                                                          |             
      Eosinophilic Focus                   |             X           X  X              X     X                    X   |             
      Hematopoietic Cell Proliferation     |                3                                               2         |             
      Hyperplasia, Lymphoid                |                                                                          |             
      Infiltration Cellular, Mixed Cell    |          2                                                     4         |             
      Mixed Cell Focus                     |                                              X  X  X                 X   |             
      Necrosis, Focal                      |                                                                3        3|             
      Tension Lipidosis                    |                                                          X               |             
      Centrilobular, Necrosis              |                   3                                                      |             
      Hepatocyte, Vacuolization Cytoplasmic|    3                    3     3                                          |             
                                           |__________________________________________________________________________|             
   Mesentery                               |    +  +  +  +        +     +  +  +                 +  +     +  +     +   |             
      Fat, Necrosis                        |    4  3  3  3        2     3  4  3                 4  3     4        3   |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  13                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 4| 7| 7| 7| 7| 7| 7| 4| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 1| 3| 8| 1| 3| 3| 3| 3| 1| 9| 3| 3| 3| 3| 3| 3| 8| 3| 5| 3| 3| 2|             
                                           | 5| 5| 5| 0| 5| 3| 5| 6| 6| 6| 6| 5| 0| 6| 6| 6| 6| 6| 6| 7| 6| 9| 6| 6| 4|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    50 MG/L                                | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |__________________________________________________________________________|             
   Oral Mucosa                             |                                                                          |             
                                           |__________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |          3                                                               |             
                                           |__________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |    2                          2        2  2  2                           |             
                                           |__________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Erosion                              |                                                                      2   |             
      Inflammation, Chronic                |          2                                                               |             
      Ulcer                                |                                                                          |             
      Epithelium, Hyperplasia              |          3                                                              3|             
                                           |__________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Erosion                              |                   3                                                      |             
      Pylorus, Epithelium, Hyperplasia,    |                                                                          |             
           Atypical                        |                                                             4            |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Blood Vessel                            |                                           +                              |             
                                           |__________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic                |                                                                          |             
      Mineralization                       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Accessory Adrenal Cortical Nodule    |                            3  3        3           3              3  3   |             
      Hyperplasia, Focal                   |                                                                3         |             
      Hypertrophy, Focal                   |                                           2                              |             
      Capsule, Hyperplasia                 |                                                                          |             
                                           |__________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                                                 1                        |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  14                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 4| 7| 7| 7| 7| 7| 7| 4| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 1| 3| 8| 1| 3| 3| 3| 3| 1| 9| 3| 3| 3| 3| 3| 3| 8| 3| 5| 3| 3| 2|             
                                           | 5| 5| 5| 0| 5| 3| 5| 6| 6| 6| 6| 5| 0| 6| 6| 6| 6| 6| 6| 7| 6| 9| 6| 6| 4|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    50 MG/L                                | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
                                           |__________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |             2     2                       2                              |             
                                           |__________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +|             
      Cyst                                 |                                                                          |             
                                           |__________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Pars Distalis, Angiectasis           |                                                                         2|             
      Pars Distalis, Cyst                  |                                                             3            |             
      Pars Distalis, Hyperplasia, Focal    | 4                          1  3              3              2     1      |             
                                           |__________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration, Cystic                 | 3     1           2  2        1  1  2  2  1  1  3           2  2  1  3   |             
      Follicular Cell, Hyperplasia         |       1                                                                  |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Clitoral Gland                          | +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                                3         |             
                                           |__________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |                                        4           2                     |             
      Cyst                                 |    3     3                    3                 3  3                     |             
      Corpus Luteum, Hyperplasia           |                                                                          |             
                                           |__________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |                         4                                            2   |             
      Hyperplasia, Cystic                  | 4  3  3     4  3  3  2  3  3  4  3     3  4  4     4  2  4  3  3  3  3  3|             
      Inflammation, Chronic                |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          | 2     2  4  3  3  3        2     3  2     3     2           2  2  3     4|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  15                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 4| 7| 7| 7| 7| 7| 7| 4| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 1| 3| 8| 1| 3| 3| 3| 3| 1| 9| 3| 3| 3| 3| 3| 3| 8| 3| 5| 3| 3| 2|             
                                           | 5| 5| 5| 0| 5| 3| 5| 6| 6| 6| 6| 5| 0| 6| 6| 6| 6| 6| 6| 7| 6| 9| 6| 6| 4|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    50 MG/L                                | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
      Infiltration Cellular, Mast Cell     |                                                    3                     |             
                                           |__________________________________________________________________________|             
   Lymph Node                              |       +  +     +                    +                 +                 +|             
      Hyperplasia, Lymphoid                |                                     2                                    |             
      Bronchial, Hemorrhage                |                                                                          |             
      Bronchial, Hyperplasia, Lymphoid     |                                                                          |             
      Iliac, Hematopoietic Cell            |                                                                          |             
          Proliferation                    |                                                                          |             
      Iliac, Hyperplasia, Lymphoid         |                                                                          |             
      Inguinal, Hematopoietic Cell         |                                                                          |             
          Proliferation                    |                                                                          |             
      Inguinal, Hyperplasia, Lymphoid      |                                     3                                    |             
      Mediastinal, Hyperplasia, Lymphoid   |                                                                          |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                                                          2               |             
      Hematopoietic Cell Proliferation     |                                                                          |             
      Hemorrhage                           |                                                                          |             
      Hyperplasia, Lymphoid                |                         2        3  2     2                              |             
      Pigmentation                         |       3  2  3        2  3  2     2     2  2  2  2  3           2     2   |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                                                                          |             
      Hyperplasia, Lymphoid                |          3  2  2                    2  2           4                     |             
                                           |__________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hematopoietic Cell Proliferation     | 2  1  3  3  1  4  4  2  2  1  2  4  3  2  3  3  2  1  2     3  3  3     3|             
      Pigmentation                         |    3                                         3                       3   |             
      Lymphoid Follicle, Atrophy           |                                                                          |             
      Lymphoid Follicle, Hyperplasia       |    3     4                 2              1        3                     |             
                                           |__________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                   3              3  3                    4               |             
      Hyperplasia, Lymphoid                |                                                 3           2            |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  16                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 4| 7| 7| 7| 7| 7| 7| 4| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 1| 3| 8| 1| 3| 3| 3| 3| 1| 9| 3| 3| 3| 3| 3| 3| 8| 3| 5| 3| 3| 2|             
                                           | 5| 5| 5| 0| 5| 3| 5| 6| 6| 6| 6| 5| 0| 6| 6| 6| 6| 6| 6| 7| 6| 9| 6| 6| 4|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    50 MG/L                                | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 INTEGUMENTARY SYSTEM - cont               |                                                                          |             
      Hyperplasia                          |          3           2           1                                      2|             
                                           |__________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Edema                                | 2                                                                        |             
      Ulcer                                |                                           4                              |             
      Epidermis, Hyperplasia               |                                           3                              |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Myelofibrosis                        |                                                    3           2         |             
                                           |__________________________________________________________________________|             
   Skeletal Muscle                         | +                                +                                       |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Compression                          |                      3                                                   |             
      Hemorrhage                           |                                                                         3|             
      Necrosis                             |                                                                         2|             
                                           |__________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
                                           |__________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
      Necrosis                             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |__________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                                           1                              |             
      Hyperplasia, Lymphoid                |             2           2  2                                             |             
      Infiltration Cellular, Histiocyte    |                                  3     1                                 |             
      Alveolar Epithelium, Hyperplasia     |                                                             3            |             
                                           |__________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  17                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 4| 7| 7| 7| 7| 7| 7| 4| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 1| 3| 8| 1| 3| 3| 3| 3| 1| 9| 3| 3| 3| 3| 3| 3| 8| 3| 5| 3| 3| 2|             
                                           | 5| 5| 5| 0| 5| 3| 5| 6| 6| 6| 6| 5| 0| 6| 6| 6| 6| 6| 6| 7| 6| 9| 6| 6| 4|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    50 MG/L                                | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Ear                                     |                                           +                              |             
                                           |__________________________________________________________________________|             
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic                |                                                          2               |             
                                           |__________________________________________________________________________|             
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Focal                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                                3         |             
      Hyperplasia, Lymphoid                |                                                                          |             
      Infarct                              |       3     2                    2                                       |             
      Nephropathy                          |       1                                   1                              |             
      Renal Tubule, Accumulation, Hyaline  |                                                                          |             
          Droplet                          |          3                                                               |             
      Renal Tubule, Dilatation             |                                     2                                    |             
      Renal Tubule, Necrosis               |                   1                                                      |             
                                           |__________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |                         2     2              3                           |             
 __________________________________________|__________________________________________________________________________              
                                                             Page  18                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 5| 6| 7| 7| 7|            |
                             DAY ON TEST   | 3| 3| 3| 3| 3| 9| 3| 9| 0| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| 8| 0| 3| 3| 3|            |
                                           | 5| 5| 5| 5| 5| 7| 7| 4| 6| 7| 7| 7| 7| 7| 7| 7| 2| 7| 1| 7| 4| 1| 5| 5| 5|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                           |__________________________________________________________________________|____________|
   Gallbladder                             | +  +  +  +  +  A  +  +  I  +  +  +  +  +  +  +  +  +  +  +  A  A  +  +  +|  44        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  A  +  +  +|  46        |
      Edema                                |                               2                                          |      1  2.0|
      Inflammation, Chronic                |                                              3                           |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|  48        |
      Epithelium, Hyperplasia              |                                              3                           |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  A  +  +  +|  47        |
      Hyperplasia, Lymphoid                |                   4                                                      |      2  3.0|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  M  A  +  +  +|  47        |
      Inflammation, Chronic                |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Angiectasis                          |                                           4  2                           |      2  3.0|
      Basophilic Focus                     |                      X                                                   |      1     |
      Clear Cell Focus                     |                                                 X                        |      1     |
      Eosinophilic Focus                   |                                                                          |      6     |
      Hematopoietic Cell Proliferation     |                         2                                               3|      4  2.5|
      Hyperplasia, Lymphoid                |                                                 2                        |      1  2.0|
      Infiltration Cellular, Mixed Cell    |             3  2     2           3                       2               |      7  2.6|
      Mixed Cell Focus                     |                                     X                                X   |      6     |
      Necrosis, Focal                      |                                                                          |      2  3.0|
      Tension Lipidosis                    |                               X     X                                    |      3     |
      Centrilobular, Necrosis              |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  19                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 5| 6| 7| 7| 7|            |
                             DAY ON TEST   | 3| 3| 3| 3| 3| 9| 3| 9| 0| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| 8| 0| 3| 3| 3|            |
                                           | 5| 5| 5| 5| 5| 7| 7| 4| 6| 7| 7| 7| 7| 7| 7| 7| 2| 7| 1| 7| 4| 1| 5| 5| 5|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
      Hepatocyte, Vacuolization Cytoplasmic|             3  3              4                 3                        |      7  3.1|
                                           |__________________________________________________________________________|____________|
   Mesentery                               |                +     +                          +  +  +  +  +            |  20        |
      Fat, Necrosis                        |                      4                          4  3  4  4  4            |     18  3.4|
                                           |__________________________________________________________________________|____________|
   Oral Mucosa                             |    +                                                                     |   1        |
                                           |__________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|  49        |
      Atrophy                              |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia, Lymphoid                |       2  3              2  3     2                    2  2              2|     13  2.2|
                                           |__________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Erosion                              |                                                                          |      1  2.0|
      Inflammation, Chronic                |                                                 2                        |      2  2.0|
      Ulcer                                |                      2                                                   |      1  2.0|
      Epithelium, Hyperplasia              |                      3        1                 3                        |      5  2.6|
                                           |__________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Erosion                              |                                                                          |      1  3.0|
      Pylorus, Epithelium, Hyperplasia,    |                                                                          |            |
           Atypical                        |                                                                          |      1  4.0|
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Blood Vessel                            |                                                                          |   1        |
                                           |__________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Inflammation, Chronic                |                                  3                                       |      1  3.0|
      Mineralization                       |                                                       3                  |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  20                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 5| 6| 7| 7| 7|            |
                             DAY ON TEST   | 3| 3| 3| 3| 3| 9| 3| 9| 0| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| 8| 0| 3| 3| 3|            |
                                           | 5| 5| 5| 5| 5| 7| 7| 4| 6| 7| 7| 7| 7| 7| 7| 7| 2| 7| 1| 7| 4| 1| 5| 5| 5|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Accessory Adrenal Cortical Nodule    |                                  3  3              3     3     3         |     11  3.0|
      Hyperplasia, Focal                   |                               2                                          |      2  2.5|
      Hypertrophy, Focal                   |                                                                          |      1  2.0|
      Capsule, Hyperplasia                 |       3                                                                  |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |             1                                                            |      2  1.0|
                                           |__________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|  49        |
      Hyperplasia                          |                                              2  2                        |      5  2.0|
                                           |__________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Cyst                                 |                                                    3                     |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Pars Distalis, Angiectasis           |                            2                       2                     |      3  2.0|
      Pars Distalis, Cyst                  |                                              3                           |      2  3.0|
      Pars Distalis, Hyperplasia, Focal    |                            2              2  2                           |      9  2.2|
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration, Cystic                 |    2  3  2        2        2  3  1  2  2  3              1               |     26  1.9|
      Follicular Cell, Hyperplasia         |                                                                          |      1  1.0|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +|  48        |
      Cyst                                 |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  M  +  M  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +|  47        |
      Angiectasis                          |                                           2                              |      3  2.7|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  21                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 5| 6| 7| 7| 7|            |
                             DAY ON TEST   | 3| 3| 3| 3| 3| 9| 3| 9| 0| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| 8| 0| 3| 3| 3|            |
                                           | 5| 5| 5| 5| 5| 7| 7| 4| 6| 7| 7| 7| 7| 7| 7| 7| 2| 7| 1| 7| 4| 1| 5| 5| 5|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 GENITAL SYSTEM - cont                     |                                                                          |            |
      Cyst                                 |    3           3     3     3     3     3                             1   |     12  2.8|
      Corpus Luteum, Hyperplasia           |                                        3                                 |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Angiectasis                          |          3                                   3                           |      4  3.0|
      Hyperplasia, Cystic                  |    4  4  4  4  4  2     3  4  2     4  4  4  4  3  4  4  4  3  2     3   |     42  3.4|
      Inflammation, Chronic                |                                                             2            |      1  2.0|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |          2     4  3     4     2  3  3        2        4           4     4|     26  2.9|
      Infiltration Cellular, Mast Cell     |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Lymph Node                              |                      +        +     +     +     +                 +     +|  13        |
      Hyperplasia, Lymphoid                |                                                                          |      1  2.0|
      Bronchial, Hemorrhage                |                      3                                                   |      1  3.0|
      Bronchial, Hyperplasia, Lymphoid     |                      2                                                   |      1  2.0|
      Iliac, Hematopoietic Cell            |                                                                          |            |
          Proliferation                    |                                                                         3|      1  3.0|
      Iliac, Hyperplasia, Lymphoid         |                                                                         2|      1  2.0|
      Inguinal, Hematopoietic Cell         |                                                                          |            |
          Proliferation                    |                                                                         3|      1  3.0|
      Inguinal, Hyperplasia, Lymphoid      |                                                                         2|      2  2.5|
      Mediastinal, Hyperplasia, Lymphoid   |                                                 2                        |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Atrophy                              |                                                                          |      1  2.0|
      Hematopoietic Cell Proliferation     |                                                                         2|      1  2.0|
      Hemorrhage                           |                   2                                               1      |      2  1.5|
      Hyperplasia, Lymphoid                |                                  3                       2               |      6  2.3|
      Pigmentation                         | 2  2     2        2  2     3  2           3     2        2  2            |     25  2.2|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|  49        |
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  22                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 5| 6| 7| 7| 7|            |
                             DAY ON TEST   | 3| 3| 3| 3| 3| 9| 3| 9| 0| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| 8| 0| 3| 3| 3|            |
                                           | 5| 5| 5| 5| 5| 7| 7| 4| 6| 7| 7| 7| 7| 7| 7| 7| 2| 7| 1| 7| 4| 1| 5| 5| 5|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
      Hemorrhage                           |                3                                                         |      1  3.0|
      Hyperplasia, Lymphoid                |                   2              3              2                        |      9  2.4|
                                           |__________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hematopoietic Cell Proliferation     | 1  3  2  2     3  2  4  4  2  2  2  1  1  1  4        3  3        2     4|     42  2.5|
      Pigmentation                         |                      3                                      3            |      5  3.0|
      Lymphoid Follicle, Atrophy           |                      2                                                   |      1  2.0|
      Lymphoid Follicle, Hyperplasia       | 2                 3              2     4     3           4               |     11  2.8|
                                           |__________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  M  +  +  +  A  +  +  +|  47        |
      Atrophy                              |                3        2                       3           4           2|      9  3.0|
      Hyperplasia, Lymphoid                |                                              3                           |      3  2.7|
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |    2                 2                                                   |      6  2.0|
                                           |__________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Edema                                |                                                                          |      1  2.0|
      Ulcer                                |                                                                          |      1  4.0|
      Epidermis, Hyperplasia               |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Myelofibrosis                        |                                                                          |      2  2.5|
                                           |__________________________________________________________________________|____________|
   Skeletal Muscle                         |                +                 +                                       |   4        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Compression                          |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  23                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 5| 6| 7| 7| 7|            |
                             DAY ON TEST   | 3| 3| 3| 3| 3| 9| 3| 9| 0| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| 8| 0| 3| 3| 3|            |
                                           | 5| 5| 5| 5| 5| 7| 7| 4| 6| 7| 7| 7| 7| 7| 7| 7| 2| 7| 1| 7| 4| 1| 5| 5| 5|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 NERVOUS SYSTEM - cont                     |                                                                          |            |
      Hemorrhage                           |                                                       2                  |      2  2.5|
      Necrosis                             |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Peripheral Nerve                        |                                  +                                       |   1        |
                                           |__________________________________________________________________________|____________|
   Spinal Cord                             |                                  +                                       |   1        |
      Necrosis                             |                                  3                                       |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hemorrhage                           |                                                       4                  |      2  2.5|
      Hyperplasia, Lymphoid                |                                  2        3                              |      5  2.2|
      Infiltration Cellular, Histiocyte    |                                                                          |      2  2.0|
      Alveolar Epithelium, Hyperplasia     |       2                                                  1               |      3  2.0|
                                           |__________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Ear                                     |                                                                          |   1        |
                                           |__________________________________________________________________________|____________|
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic                |                      3                                                   |      2  2.5|
                                           |__________________________________________________________________________|____________|
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Focal                   |       3           2              3                 3                     |      4  2.8|
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  24                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 5| 6| 7| 7| 7|            |
                             DAY ON TEST   | 3| 3| 3| 3| 3| 9| 3| 9| 0| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| 8| 0| 3| 3| 3|            |
                                           | 5| 5| 5| 5| 5| 7| 7| 4| 6| 7| 7| 7| 7| 7| 7| 7| 2| 7| 1| 7| 4| 1| 5| 5| 5|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 URINARY SYSTEM - cont                     |                                                                          |            |
      Hyperplasia, Lymphoid                |                            3                          2                  |      2  2.5|
      Infarct                              |       2     1              2        1        1                           |      8  1.8|
      Nephropathy                          |    1                 1  2     2                       2           1      |      8  1.4|
      Renal Tubule, Accumulation, Hyaline  |                                                                          |            |
          Droplet                          |                                                                          |      1  3.0|
      Renal Tubule, Dilatation             |                      3                                                   |      2  2.5|
      Renal Tubule, Necrosis               |                                                                          |      1  1.0|
                                           |__________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia, Lymphoid                |                                                       2  2               |      5  2.2|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  25                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 6| 4| 7| 7| 7| 7| 7| 7| 7| 7| 6| 6| 7| 6| 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 1| 7| 3| 3| 3| 3| 3| 2| 3| 3| 2| 5| 3| 2| 0| 3| 3| 3| 3| 8| 3| 4| 3| 3| 3|             
                                           | 7| 9| 7| 7| 7| 7| 7| 4| 7| 5| 2| 9| 5| 9| 1| 7| 7| 7| 7| 0| 6| 3| 6| 6| 6|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    500 MG/L                               | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |__________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Gallbladder                             | A  A  +  +  +  +  +  +  +  A  A  +  +  +  M  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Ulcer                                |                                                                          |             
                                           |__________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Epithelium, Hyperplasia              |                                                                          |             
                                           |__________________________________________________________________________|             
   Intestine Small, Duodenum               | A  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Basophilic Focus                     |                                                                          |             
      Clear Cell Focus                     | X        X                                                  X            |             
      Eosinophilic Focus                   |                         X                    X     X  X  X               |             
      Hematopoietic Cell Proliferation     | 3                                3                                       |             
      Infiltration Cellular, Mixed Cell    | 2                                                                        |             
      Inflammation, Chronic Active         |       1                                                                  |             
      Mixed Cell Focus                     |                                                       X                  |             
      Necrosis, Focal                      |                2                                      1                  |             
      Centrilobular, Necrosis              | 4  3                                                                     |             
      Hepatocyte, Vacuolization Cytoplasmic|                                        3     3                    3      |             
                                           |__________________________________________________________________________|             
   Mesentery                               | +              +        +                             +  +     +     +  +|             
      Fat, Necrosis                        |                4        4                             4              4  3|             
                                           |__________________________________________________________________________|             
   Pancreas                                | +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                                                                          |             
      Cyst                                 |                                                                          |             
                                           |__________________________________________________________________________|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  26                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 6| 4| 7| 7| 7| 7| 7| 7| 7| 7| 6| 6| 7| 6| 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 1| 7| 3| 3| 3| 3| 3| 2| 3| 3| 2| 5| 3| 2| 0| 3| 3| 3| 3| 8| 3| 4| 3| 3| 3|             
                                           | 7| 9| 7| 7| 7| 7| 7| 4| 7| 5| 2| 9| 5| 9| 1| 7| 7| 7| 7| 0| 6| 3| 6| 6| 6|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    500 MG/L                               | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                | 2        2  2  2  2           2     3                                4  2|             
                                           |__________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic                |                                                                1         |             
      Ulcer                                |                                                                          |             
                                           |__________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Tooth                                   |                                                          +               |             
      Malformation                         |                                                          X               |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Blood Vessel                            |                                                                          |             
      Hypertrophy                          |                                                                          |             
      Inflammation, Chronic Active         |                                                                          |             
                                           |__________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cardiomyopathy                       |                1                                                         |             
      Mineralization                       |                                                                3         |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Accessory Adrenal Cortical Nodule    |                         3                                            3   |             
                                           |__________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                   2                                                      |             
                                           |__________________________________________________________________________|             
   Islets, Pancreatic                      | +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +|             
      Cyst                                 |                                              3                           |             
                                           |__________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M|             
      Pars Distalis, Angiectasis           |                                                 2                        |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  27                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 6| 4| 7| 7| 7| 7| 7| 7| 7| 7| 6| 6| 7| 6| 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 1| 7| 3| 3| 3| 3| 3| 2| 3| 3| 2| 5| 3| 2| 0| 3| 3| 3| 3| 8| 3| 4| 3| 3| 3|             
                                           | 7| 9| 7| 7| 7| 7| 7| 4| 7| 5| 2| 9| 5| 9| 1| 7| 7| 7| 7| 0| 6| 3| 6| 6| 6|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    500 MG/L                               | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
      Pars Distalis, Cyst                  |                                                                          |             
      Pars Distalis, Hyperplasia, Focal    |       1                 2              2                                 |             
                                           |__________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration, Cystic                 |       1     2     1           2  3              3  1     3  1            |             
      Follicular Cell, Hyperplasia         |             2                                                            |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Ovary                                   | +  +  +  M  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |    4                    2     3        3                                 |             
      Cyst                                 |       3     3           3        3                 3  3     3            |             
                                           |__________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |                                        2                                 |             
      Hyperplasia, Cystic                  | 3  3  4  3  3     4     3  3  4  2  4  2     2  3  3  4  4  2     2  4  3|             
      Inflammation, Chronic                |                                                                      3   |             
      Metaplasia, Squamous                 |                         3                                                |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          | 1  3           2     4  3     3  4     3  2  2        3  4     3     3  2|             
                                           |__________________________________________________________________________|             
   Lymph Node                              |                         +     +        +     +           +        +  +   |             
      Iliac, Hyperplasia, Lymphoid         |                                                                      3   |             
      Mediastinal, Hyperplasia, Lymphoid   |                               2                                          |             
      Pancreatic, Hyperplasia, Lymphoid    |                                                                   2      |             
      Renal, Hyperplasia, Lymphoid         |                                                                      3   |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                      3                                                   |             
      Hemorrhage                           |                            1                                   3         |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  28                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 6| 4| 7| 7| 7| 7| 7| 7| 7| 7| 6| 6| 7| 6| 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 1| 7| 3| 3| 3| 3| 3| 2| 3| 3| 2| 5| 3| 2| 0| 3| 3| 3| 3| 8| 3| 4| 3| 3| 3|             
                                           | 7| 9| 7| 7| 7| 7| 7| 4| 7| 5| 2| 9| 5| 9| 1| 7| 7| 7| 7| 0| 6| 3| 6| 6| 6|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    500 MG/L                               | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
      Hyperplasia, Lymphoid                | 2                       3                                               2|             
      Pigmentation                         |       3           2           2  2              2     2           2      |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |                                                       2                  |             
      Atrophy                              |                2     3                                                   |             
      Ectasia                              |                                                                          |             
      Hematopoietic Cell Proliferation     |             2                                   2                        |             
      Hemorrhage                           |                                                                          |             
      Hyperplasia, Lymphoid                | 3           2     2           2                 3                        |             
      Pigmentation                         |                                                                          |             
                                           |__________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hematopoietic Cell Proliferation     | 4  4  1  2  2  3  1  4  3     3  4  3     4  3  2     2  4     3     2  2|             
      Pigmentation                         |                                                                          |             
      Lymphoid Follicle, Atrophy           |                      3                                                   |             
      Lymphoid Follicle, Hyperplasia       | 2     3     3                                                     3  2  2|             
                                           |__________________________________________________________________________|             
   Thymus                                  | M  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  M  +  +  +  +  +|             
      Atrophy                              |    3           2     4                 3  2                    3         |             
      Hyperplasia, Lymphoid                |       2                                                              2  2|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                         1        4                                       |             
                                           |__________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Edema                                |                                  4                                       |             
      Erosion                              |                               3                                          |             
      Ulcer                                |                         1                                                |             
      Epidermis, Hyperplasia               |                         2                                                |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Myelofibrosis                        |                                           2                              |             
                                           |__________________________________________________________________________|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  29                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 6| 4| 7| 7| 7| 7| 7| 7| 7| 7| 6| 6| 7| 6| 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 1| 7| 3| 3| 3| 3| 3| 2| 3| 3| 2| 5| 3| 2| 0| 3| 3| 3| 3| 8| 3| 4| 3| 3| 3|             
                                           | 7| 9| 7| 7| 7| 7| 7| 4| 7| 5| 2| 9| 5| 9| 1| 7| 7| 7| 7| 0| 6| 3| 6| 6| 6|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    500 MG/L                               | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM - cont             |                                                                          |             
   Skeletal Muscle                         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Compression                          |                                                                          |             
      Necrosis                             |                                                                          |             
                                           |__________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
                                           |__________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |__________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Congestion                           | 3                                                              3         |             
      Hemorrhage                           |                                                                          |             
      Hyperplasia, Lymphoid                |                                                                          |             
      Infiltration Cellular, Histiocyte    |                      3        4                                          |             
                                           |__________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                                                                          |             
      Cataract                             |                      1  2                                                |             
      Inflammation, Chronic                |                         4                                                |             
      Cornea, Hyperplasia                  |             1           4                                                |             
                                           |__________________________________________________________________________|             
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Focal                   |                      2                          2                        |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  30                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 6| 4| 7| 7| 7| 7| 7| 7| 7| 7| 6| 6| 7| 6| 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 1| 7| 3| 3| 3| 3| 3| 2| 3| 3| 2| 5| 3| 2| 0| 3| 3| 3| 3| 8| 3| 4| 3| 3| 3|             
                                           | 7| 9| 7| 7| 7| 7| 7| 4| 7| 5| 2| 9| 5| 9| 1| 7| 7| 7| 7| 0| 6| 3| 6| 6| 6|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    500 MG/L                               | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 URINARY SYSTEM - cont                     |                                                                          |             
      Hydronephrosis                       |                3                                                         |             
      Hyperplasia, Lymphoid                |             3                                                           2|             
      Infarct                              |                                                 1                        |             
      Nephropathy                          |                3     3                 2     1        1                 1|             
      Renal Tubule, Accumulation, Hyaline  |                                                                          |             
          Droplet                          |                                        3                                 |             
      Renal Tubule, Dilatation             |                                        2                                 |             
      Renal Tubule, Pigmentation           |    2                 2                                                   |             
                                           |__________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |                2              2                                         2|             
      Transitional Epithelium, Hyperplasia |                                                                          |             
 __________________________________________|__________________________________________________________________________              
                                                             Page  31                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 6| 5| 7| 7| 6| 7| 6| 7| 7| 5| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 1| 9| 3| 5| 3| 3| 6| 3| 1| 3| 3| 7| 3| 0| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3|            |
                                           | 8| 2| 4| 3| 7| 5| 8| 5| 8| 5| 6| 3| 6| 7| 6| 6| 6| 6| 6| 6| 7| 2| 7| 7| 7|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|      A     |
    500 MG/L                               | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Gallbladder                             | +  A  A  +  +  +  +  +  +  +  +  +  +  A  I  +  +  +  +  +  +  M  +  +  +|  40        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  I  +  +  +  +  +  +|  48        |
      Ulcer                                |                                                                4         |      1  4.0|
                                           |__________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +|  49        |
      Epithelium, Hyperplasia              |                                        3                                 |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                           |__________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  M  A  +  +  +|  47        |
                                           |__________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Basophilic Focus                     | X  X                                            X                        |      3     |
      Clear Cell Focus                     |                   X        X                          X        X     X   |      8     |
      Eosinophilic Focus                   |    X                 X        X                    X  X                  |     10     |
      Hematopoietic Cell Proliferation     |                                                                          |      2  3.0|
      Infiltration Cellular, Mixed Cell    | 2           2                                   3                        |      4  2.3|
      Inflammation, Chronic Active         |                                                                          |      1  1.0|
      Mixed Cell Focus                     |                                                             X           X|      3     |
      Necrosis, Focal                      |                   4                                                      |      3  2.3|
      Centrilobular, Necrosis              |                                        2                       2         |      4  2.8|
      Hepatocyte, Vacuolization Cytoplasmic|                   4                                                      |      4  3.3|
                                           |__________________________________________________________________________|____________|
   Mesentery                               | +  +  +        +  +  +                                      +  +         |  16        |
      Fat, Necrosis                        | 4     2        2  3  4                                      4            |     11  3.5|
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  32                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 6| 5| 7| 7| 6| 7| 6| 7| 7| 5| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 1| 9| 3| 5| 3| 3| 6| 3| 1| 3| 3| 7| 3| 0| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3|            |
                                           | 8| 2| 4| 3| 7| 5| 8| 5| 8| 5| 6| 3| 6| 7| 6| 6| 6| 6| 6| 6| 7| 2| 7| 7| 7|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|      A     |
    500 MG/L                               | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Atrophy                              |                                                                3         |      1  3.0|
      Cyst                                 |                               3                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Lymphoid                |                2     2        2                 2  2  2     2            |     16  2.2|
                                           |__________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic                |                                                                2         |      2  1.5|
      Ulcer                                |                   2                                                      |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Tooth                                   |                                                                          |   1        |
      Malformation                         |                                                                          |      1     |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Blood Vessel                            | +                                                                        |   1        |
      Hypertrophy                          | 4                                                                        |      1  4.0|
      Inflammation, Chronic Active         | 4                                                                        |      1  4.0|
                                           |__________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cardiomyopathy                       |                                                                          |      1  1.0|
      Mineralization                       |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Accessory Adrenal Cortical Nodule    |       3     3                 3                          3               |      6  3.0|
                                           |__________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  33                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 6| 5| 7| 7| 6| 7| 6| 7| 7| 5| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 1| 9| 3| 5| 3| 3| 6| 3| 1| 3| 3| 7| 3| 0| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3|            |
                                           | 8| 2| 4| 3| 7| 5| 8| 5| 8| 5| 6| 3| 6| 7| 6| 6| 6| 6| 6| 6| 7| 2| 7| 7| 7|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|      A     |
    500 MG/L                               | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia                          |       2     2                                                           1|      3  1.7|
                                           |__________________________________________________________________________|____________|
   Parathyroid Gland                       | +  M  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Cyst                                 |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Pars Distalis, Angiectasis           |                                                                          |      1  2.0|
      Pars Distalis, Cyst                  |                                     3                                    |      1  3.0|
      Pars Distalis, Hyperplasia, Focal    |                                           2                              |      4  1.8|
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration, Cystic                 |             1        1     2     1  2     2     3                        |     16  1.8|
      Follicular Cell, Hyperplasia         |                                                                          |      1  2.0|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Clitoral Gland                          | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                           |__________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +|  47        |
      Angiectasis                          |          2           2              2     2              2               |      9  2.4|
      Cyst                                 |    3                             3  3        3  3     3  3               |     14  3.0|
                                           |__________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Angiectasis                          |                                                                          |      1  2.0|
      Hyperplasia, Cystic                  | 3  2  1  3  3  3  4        2  3  2  4  3  3  3  4  3  2  3  3  4  2  2  3|     44  3.0|
      Inflammation, Chronic                |                                                                          |      1  3.0|
      Metaplasia, Squamous                 |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  34                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 6| 5| 7| 7| 6| 7| 6| 7| 7| 5| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 1| 9| 3| 5| 3| 3| 6| 3| 1| 3| 3| 7| 3| 0| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3|            |
                                           | 8| 2| 4| 3| 7| 5| 8| 5| 8| 5| 6| 3| 6| 7| 6| 6| 6| 6| 6| 6| 7| 2| 7| 7| 7|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|      A     |
    500 MG/L                               | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          | 4  3              2     3        4     2        2              4        3|     24  2.9|
                                           |__________________________________________________________________________|____________|
   Lymph Node                              |    +              M     +                       +                 +      |  11        |
      Iliac, Hyperplasia, Lymphoid         |                                                                          |      1  3.0|
      Mediastinal, Hyperplasia, Lymphoid   |                                                                          |      1  2.0|
      Pancreatic, Hyperplasia, Lymphoid    |                                                                          |      1  2.0|
      Renal, Hyperplasia, Lymphoid         |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  M  +  +  +  M  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Atrophy                              |                                                                          |      1  3.0|
      Hemorrhage                           |                                                                          |      2  2.0|
      Hyperplasia, Lymphoid                | 4           3        2        3                                         3|      8  2.8|
      Pigmentation                         |          2     2     2  2  2  2     2  2           2              2      |     17  2.1|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  M  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Angiectasis                          |                                                                          |      1  2.0|
      Atrophy                              |                                                                          |      2  2.5|
      Ectasia                              |                         4                                                |      1  4.0|
      Hematopoietic Cell Proliferation     |                                                                          |      2  2.0|
      Hemorrhage                           |                         1                                                |      1  1.0|
      Hyperplasia, Lymphoid                |                               3  2                                       |      7  2.4|
      Pigmentation                         |                         3                                                |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hematopoietic Cell Proliferation     | 2           1  1  3           2  4  1  4     1  3  1           3  2  2  3|     35  2.5|
      Pigmentation                         |       3                                                                  |      1  3.0|
      Lymphoid Follicle, Atrophy           |                   3                                                      |      2  3.0|
      Lymphoid Follicle, Hyperplasia       |       2     3  3     2     3  3        2                    2            |     14  2.5|
                                           |__________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Atrophy                              |                   4              2     3                       3        2|     11  2.8|
      Hyperplasia, Lymphoid                |                                                                          |      3  2.0|
 _____________________________________________________________________________________________________________________|            |
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  35                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 6| 5| 7| 7| 6| 7| 6| 7| 7| 5| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 1| 9| 3| 5| 3| 3| 6| 3| 1| 3| 3| 7| 3| 0| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3|            |
                                           | 8| 2| 4| 3| 7| 5| 8| 5| 8| 5| 6| 3| 6| 7| 6| 6| 6| 6| 6| 6| 7| 2| 7| 7| 7|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|      A     |
    500 MG/L                               | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |                                                                          |      2  2.5|
                                           |__________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Edema                                |                                                                          |      1  4.0|
      Erosion                              |                                                                          |      1  3.0|
      Ulcer                                |                                                                          |      1  1.0|
      Epidermis, Hyperplasia               |                                           1                              |      2  1.5|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Myelofibrosis                        |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Skeletal Muscle                         |                   +              +                                       |   2        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Compression                          |                         2                                                |      1  2.0|
      Necrosis                             | 2                                                                        |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Peripheral Nerve                        | +                                                                        |   1        |
                                           |__________________________________________________________________________|____________|
   Spinal Cord                             | +                                                                        |   1        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Congestion                           |                                                                          |      2  3.0|
      Hemorrhage                           |                                  3  1                                    |      2  2.0|
      Hyperplasia, Lymphoid                |                         2                                                |      1  2.0|
      Infiltration Cellular, Histiocyte    |                                                                          |      2  3.5|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  36                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 6| 5| 7| 7| 6| 7| 6| 7| 7| 5| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 1| 9| 3| 5| 3| 3| 6| 3| 1| 3| 3| 7| 3| 0| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3|            |
                                           | 8| 2| 4| 3| 7| 5| 8| 5| 8| 5| 6| 3| 6| 7| 6| 6| 6| 6| 6| 6| 7| 2| 7| 7| 7|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|      A     |
    500 MG/L                               | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atrophy                              |    4                                                                     |      1  4.0|
      Cataract                             |                                                                          |      2  1.5|
      Inflammation, Chronic                | 1                                                                 2      |      3  2.3|
      Cornea, Hyperplasia                  | 1                                                                 3      |      4  2.3|
                                           |__________________________________________________________________________|____________|
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Focal                   |                   2                                   2                  |      4  2.0|
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hydronephrosis                       |                                                                          |      1  3.0|
      Hyperplasia, Lymphoid                | 2           2                                            2               |      5  2.2|
      Infarct                              |                                           1     2  2                 3  2|      6  1.8|
      Nephropathy                          | 2  2        1  1     1        1              2  3                       1|     15  1.7|
      Renal Tubule, Accumulation, Hyaline  |                                                                          |            |
          Droplet                          |                                  3                                       |      2  3.0|
      Renal Tubule, Dilatation             |                                                                          |      1  2.0|
      Renal Tubule, Pigmentation           |                                                 3                        |      3  2.3|
                                           |__________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Lymphoid                |                                                                          |      3  2.0|
      Transitional Epithelium, Hyperplasia | 3                                                                        |      1  3.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  37                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 6| 7| 4| 7| 7| 7| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 5| 3| 3| 0| 3| 2| 3| 8| 3| 3| 3| 3| 7| 3| 3| 3| 2| 8| 2| 1| 2| 2| 2|             
                                           | 5| 5| 9| 5| 0| 2| 6| 1| 6| 2| 5| 5| 5| 5| 1| 7| 7| 7| 9| 2| 9| 7| 9| 9| 9|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    1000                                   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
    MG/L                                   | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |__________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  A  +  +  +  +  +  +|             
      Edema                                |                   2                                                      |             
      Inflammation, Chronic                |                                                                          |             
                                           |__________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  A  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  A  +  +  +  +  +  +  A  +  +  +  A  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |                                                                          |             
                                           |__________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Basophilic Focus                     |                         X                                                |             
      Clear Cell Focus                     |    X           X                                            X            |             
      Eosinophilic Focus                   |    X              X              X                 X                     |             
      Hematopoietic Cell Proliferation     |                                                                3         |             
      Hepatodiaphragmatic Nodule           |                            X                                   X         |             
      Infarct                              |                                                                3         |             
      Infiltration Cellular, Mixed Cell    |       2                       2        1           2     4     3         |             
      Mixed Cell Focus                     |                                                                         X|             
      Necrosis, Focal                      |                                                       3                  |             
      Centrilobular, Necrosis              |                      2                                         3         |             
      Hepatocyte, Vacuolization Cytoplasmic|    3           4                                                         |             
      Kupffer Cell, Pigmentation           |                                                          2               |             
                                           |__________________________________________________________________________|             
   Mesentery                               |    +     +        +  +              +  +              +     +  +         |             
      Fat, Necrosis                        |    2                 3              2  4                    4  3         |             
                                           |__________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  A  +  +  +  +  +  +|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  38                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 6| 7| 4| 7| 7| 7| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 5| 3| 3| 0| 3| 2| 3| 8| 3| 3| 3| 3| 7| 3| 3| 3| 2| 8| 2| 1| 2| 2| 2|             
                                           | 5| 5| 9| 5| 0| 2| 6| 1| 6| 2| 5| 5| 5| 5| 1| 7| 7| 7| 9| 2| 9| 7| 9| 9| 9|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    1000                                   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
    MG/L                                   | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
      Atrophy                              |                                                                         3|             
      Cyst                                 |                                                                         3|             
      Inflammation, Chronic                | 3                                                                        |             
                                           |__________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |                         3           2              2           2         |             
                                           |__________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic                |                                                                          |             
      Ulcer                                |                2                                               2         |             
      Epithelium, Hyperplasia              |                3        1                                         2      |             
                                           |__________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Erosion                              |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cardiomyopathy                       |                                                                          |             
      Inflammation, Chronic                |                                                                          |             
      Inflammation, Chronic Active         |                                        3                                 |             
      Mineralization                       |                                                                2         |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Accessory Adrenal Cortical Nodule    | 3                 3              3                                      3|             
      Hyperplasia, Focal                   |                                                                   3      |             
      Capsule, Hyperplasia                 |    2                                                                     |             
                                           |__________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  A  +  +  +  +  +  +|             
      Hyperplasia                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +|             
      Cyst                                 |                                                                         3|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  39                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 6| 7| 4| 7| 7| 7| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 5| 3| 3| 0| 3| 2| 3| 8| 3| 3| 3| 3| 7| 3| 3| 3| 2| 8| 2| 1| 2| 2| 2|             
                                           | 5| 5| 9| 5| 0| 2| 6| 1| 6| 2| 5| 5| 5| 5| 1| 7| 7| 7| 9| 2| 9| 7| 9| 9| 9|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    1000                                   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
    MG/L                                   | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
                                           |__________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Pars Distalis, Angiectasis           |                                                                          |             
      Pars Distalis, Cyst                  |                3                                                         |             
      Pars Distalis, Hyperplasia, Focal    |          3                                         2              1      |             
                                           |__________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration, Cystic                 |    3     2     1           2                       2     3  2        2   |             
      Follicular Cell, Hyperplasia         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |__________________________________________________________________________|             
   Tissue NOS                              |                            +                                             |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |       2                       3  4           2                           |             
      Cyst                                 | 3  3     3     3  3  3  3     3     3  3           3        3            |             
      Interstitial Cell, Hyperplasia       |                                              3                           |             
                                           |__________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |       2                                                                  |             
      Hyperplasia, Cystic                  | 4  4  3  3     2     4     4  4  2     4  4  4  3  4        4  2  3  3  2|             
      Metaplasia, Squamous                 |                            3                                             |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |    3  3     4        3     4              3        2  3  4     3         |             
                                           |__________________________________________________________________________|             
   Lymph Node                              | +                    +                             +     +     +         |             
      Deep Cervical, Hemorrhage            |                      4                                                   |             
      Iliac, Hemorrhage                    |                      4                                                   |             
      Iliac, Hyperplasia, Lymphoid         | 2                                                  2                     |             
      Mediastinal, Hyperplasia, Lymphoid   |                                                                3         |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  40                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 6| 7| 4| 7| 7| 7| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 5| 3| 3| 0| 3| 2| 3| 8| 3| 3| 3| 3| 7| 3| 3| 3| 2| 8| 2| 1| 2| 2| 2|             
                                           | 5| 5| 9| 5| 0| 2| 6| 1| 6| 2| 5| 5| 5| 5| 1| 7| 7| 7| 9| 2| 9| 7| 9| 9| 9|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    1000                                   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
    MG/L                                   | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
      Renal, Hyperplasia, Lymphoid         |                                                    2                     |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                3                                                         |             
      Hematopoietic Cell Proliferation     |       2     3                                                            |             
      Hemorrhage                           |                                                                2         |             
      Hyperplasia, Lymphoid                | 3           4                          2        3              3        3|             
      Pigmentation                         | 3  3           2        3  2           2     3  2  2              3      |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                                                                          |             
      Hematopoietic Cell Proliferation     |       2                                                                  |             
      Hemorrhage                           |                                                                1         |             
      Hyperplasia, Lymphoid                |       2                                                        3         |             
      Pigmentation                         |                                                                          |             
                                           |__________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +|             
      Hematopoietic Cell Proliferation     | 3  3  4     3     1  3     4  3  2     1     1     3  4  4  1     1      |             
      Pigmentation                         |                            3                                             |             
      Lymphoid Follicle, Atrophy           |                2                                                         |             
      Lymphoid Follicle, Hyperplasia       |          2  3                 2     3        4     3        2           2|             
                                           |__________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |    3  3        3     4                    3        2           3         |             
      Hyperplasia, Lymphoid                |          3                                                              3|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                      2     2  2                                3         |             
                                           |__________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Edema                                |                                                       3                  |             
      Ulcer                                |             4                                                            |             
      Epidermis, Hyperplasia               |             4                                                            |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |__________________________________________________________________________|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  41                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 6| 7| 4| 7| 7| 7| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 5| 3| 3| 0| 3| 2| 3| 8| 3| 3| 3| 3| 7| 3| 3| 3| 2| 8| 2| 1| 2| 2| 2|             
                                           | 5| 5| 9| 5| 0| 2| 6| 1| 6| 2| 5| 5| 5| 5| 1| 7| 7| 7| 9| 2| 9| 7| 9| 9| 9|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    1000                                   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
    MG/L                                   | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM - cont             |                                                                          |             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Myelofibrosis                        |                                                                          |             
                                           |__________________________________________________________________________|             
   Skeletal Muscle                         |    +                                               +  +                  |             
      Inflammation, Chronic Active         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Peripheral Nerve                        |                +                                                         |             
      Atrophy                              |                3                                                         |             
                                           |__________________________________________________________________________|             
   Spinal Cord                             |                +                                                         |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |__________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                            1                                2        3   |             
      Hyperplasia, Lymphoid                |                                                                          |             
      Infiltration Cellular, Histiocyte    |                            2           2           1                     |             
      Alveolar Epithelium, Hyperplasia     |                                                    3                     |             
      Perivascular, Inflammation, Chronic  |                                                                          |             
          Active                           |                                        3                                 |             
                                           |__________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic                |                                                          2               |             
                                           |__________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cataract                             |       2                                                                  |             
      Inflammation, Chronic                |                1                                                     1   |             
      Cornea, Mineralization               |                                                                      2   |             
                                           |__________________________________________________________________________|             
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  42                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 6| 7| 4| 7| 7| 7| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 5| 3| 3| 0| 3| 2| 3| 8| 3| 3| 3| 3| 7| 3| 3| 3| 2| 8| 2| 1| 2| 2| 2|             
                                           | 5| 5| 9| 5| 0| 2| 6| 1| 6| 2| 5| 5| 5| 5| 1| 7| 7| 7| 9| 2| 9| 7| 9| 9| 9|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    1000                                   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
    MG/L                                   | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 SPECIAL SENSES SYSTEM - cont              |                                                                          |             
      Hyperplasia, Focal                   |                                                             3            |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                                          |             
      Hydronephrosis                       |                            2                                             |             
      Hyperplasia, Lymphoid                |                               2                       2     3  2  3      |             
      Infarct                              |                   3           3                                   3      |             
      Nephropathy                          | 1  1     1     1              1              1           1               |             
      Renal Tubule, Accumulation, Hyaline  |                                                                          |             
          Droplet                          |                               3                                          |             
      Renal Tubule, Dilatation             |                                                          2               |             
      Renal Tubule, Necrosis               |                            2                                             |             
      Renal Tubule, Pigmentation           |                                                                          |             
                                           |__________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |                                                                          |             
 __________________________________________|__________________________________________________________________________              
                                                             Page  43                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 7| 7| 7| 2| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 6| 5| 7| 5| 7|            |
                             DAY ON TEST   | 1| 2| 2| 2| 2| 3| 1| 3| 7| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 9| 2| 9| 3|            |
                                           | 5| 9| 9| 9| 9| 6| 9| 6| 9| 6| 6| 6| 6| 6| 8| 5| 5| 5| 5| 5| 6| 6| 1| 3| 6|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Gallbladder                             | A  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +|  46        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Cecum                  | A  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
      Edema                                |                                                       2        2         |      3  2.0|
      Inflammation, Chronic                |                                                                2         |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Duodenum               | A  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +|  45        |
                                           |__________________________________________________________________________|____________|
   Intestine Small, Jejunum                | M  +  +  +  +  +  A  +  A  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +|  43        |
      Hyperplasia, Lymphoid                |                4              3                                          |      2  3.5|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Ileum                  | A  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +|  46        |
                                           |__________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Basophilic Focus                     |                            X        X                                    |      3     |
      Clear Cell Focus                     |                                                          X              X|      5     |
      Eosinophilic Focus                   |          X  X     X                 X                 X                  |      9     |
      Hematopoietic Cell Proliferation     |                   2                                                      |      2  2.5|
      Hepatodiaphragmatic Nodule           |                                                                          |      2     |
      Infarct                              |                                                                          |      1  3.0|
      Infiltration Cellular, Mixed Cell    |                                                       2           3  3   |      9  2.4|
      Mixed Cell Focus                     |                                                                          |      1     |
      Necrosis, Focal                      |                                                                4         |      2  3.5|
      Centrilobular, Necrosis              |                                        3                    1            |      4  2.3|
      Hepatocyte, Vacuolization Cytoplasmic|                                                                          |      2  3.5|
      Kupffer Cell, Pigmentation           |                                                                   2  3   |      3  2.3|
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  44                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 7| 7| 7| 2| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 6| 5| 7| 5| 7|            |
                             DAY ON TEST   | 1| 2| 2| 2| 2| 3| 1| 3| 7| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 9| 2| 9| 3|            |
                                           | 5| 9| 9| 9| 9| 6| 9| 6| 9| 6| 6| 6| 6| 6| 8| 5| 5| 5| 5| 5| 6| 6| 1| 3| 6|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
   Mesentery                               |    +        +  +                       +  +  +  +  +  +              +   |  19        |
      Fat, Necrosis                        |    3           3                          3  2  4  2  2                  |     13  2.8|
                                           |__________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Atrophy                              |          2                                3                              |      3  2.7|
      Cyst                                 |                                           3     3                        |      3  3.0|
      Inflammation, Chronic                |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Lymphoid                |                   3  3              2           3        2           3   |     10  2.5|
                                           |__________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Inflammation, Chronic                |                                           2                              |      1  2.0|
      Ulcer                                |                                                                3         |      3  2.3|
      Epithelium, Hyperplasia              |                                           2                              |      4  2.0|
                                           |__________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Erosion                              |                                                                3         |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cardiomyopathy                       |                                                                   2      |      1  2.0|
      Inflammation, Chronic                |                         3                                                |      1  3.0|
      Inflammation, Chronic Active         |                                                                          |      1  3.0|
      Mineralization                       |                                                                3         |      2  2.5|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Accessory Adrenal Cortical Nodule    | 3  3              3        3                          3                  |      9  3.0|
      Hyperplasia, Focal                   |                                                                          |      1  3.0|
      Capsule, Hyperplasia                 |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  45                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 7| 7| 7| 2| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 6| 5| 7| 5| 7|            |
                             DAY ON TEST   | 1| 2| 2| 2| 2| 3| 1| 3| 7| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 9| 2| 9| 3|            |
                                           | 5| 9| 9| 9| 9| 6| 9| 6| 9| 6| 6| 6| 6| 6| 8| 5| 5| 5| 5| 5| 6| 6| 1| 3| 6|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia                          |                      1                                                   |      1  1.0|
                                           |__________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +|  46        |
      Hyperplasia                          |       2              2              2                                    |      3  2.0|
                                           |__________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Cyst                                 |                                                          3     3         |      3  3.0|
                                           |__________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Pars Distalis, Angiectasis           |                               2                                          |      1  2.0|
      Pars Distalis, Cyst                  |                                                                          |      1  3.0|
      Pars Distalis, Hyperplasia, Focal    |       2                       2                                1     2   |      7  1.9|
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration, Cystic                 |    2     2                       1  1                       1  2         |     14  1.9|
      Follicular Cell, Hyperplasia         |                                     1                                2   |      2  1.5|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Tissue NOS                              |                                                             +            |   2        |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Angiectasis                          |                2           2                       3                     |      7  2.6|
      Cyst                                 |       3  3        3  3                 3        3     3        3  3     3|     22  3.0|
      Interstitial Cell, Hyperplasia       |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Angiectasis                          |                                                       2                  |      2  2.0|
      Hyperplasia, Cystic                  | 3     3  3  2  3  3  3     3  3  2  2  2           1  2  4  4  3  2  3  3|     39  3.0|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  46                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 7| 7| 7| 2| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 6| 5| 7| 5| 7|            |
                             DAY ON TEST   | 1| 2| 2| 2| 2| 3| 1| 3| 7| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 9| 2| 9| 3|            |
                                           | 5| 9| 9| 9| 9| 6| 9| 6| 9| 6| 6| 6| 6| 6| 8| 5| 5| 5| 5| 5| 6| 6| 1| 3| 6|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 GENITAL SYSTEM - cont                     |                                                                          |            |
      Metaplasia, Squamous                 |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          | 4     2        2  4  2                 3                    2  3  2  4   |     20  3.0|
                                           |__________________________________________________________________________|____________|
   Lymph Node                              |                      +                             +                 +   |   8        |
      Deep Cervical, Hemorrhage            |                                                                          |      1  4.0|
      Iliac, Hemorrhage                    |                                                                          |      1  4.0|
      Iliac, Hyperplasia, Lymphoid         |                                                                          |      2  2.0|
      Mediastinal, Hyperplasia, Lymphoid   |                                                                          |      1  3.0|
      Renal, Hyperplasia, Lymphoid         |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atrophy                              |                                                                          |      1  3.0|
      Hematopoietic Cell Proliferation     |                                                                          |      2  2.5|
      Hemorrhage                           |                                                                          |      1  2.0|
      Hyperplasia, Lymphoid                |    2     3           2                                                   |      9  2.8|
      Pigmentation                         |    3           2     2     2     2  2  2  3        2  3           2  2  2|     23  2.3|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  I  +  +  +  A  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +|  45        |
      Atrophy                              |                                                                   3      |      1  3.0|
      Hematopoietic Cell Proliferation     |                                                                          |      1  2.0|
      Hemorrhage                           |    4                                      1                    2  4      |      5  2.4|
      Hyperplasia, Lymphoid                |          2           2                                               2   |      5  2.2|
      Pigmentation                         |                                                                   3      |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Hematopoietic Cell Proliferation     | 2     2  2  2  3  4  3           1  2  4  1        1  2  1  4  3  4  4   |     34  2.5|
      Pigmentation                         |                                                                      3   |      2  3.0|
      Lymphoid Follicle, Atrophy           |                                                                   3      |      2  2.5|
      Lymphoid Follicle, Hyperplasia       | 3  2     2                                   2                           |     12  2.5|
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  47                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 7| 7| 7| 2| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 6| 5| 7| 5| 7|            |
                             DAY ON TEST   | 1| 2| 2| 2| 2| 3| 1| 3| 7| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 9| 2| 9| 3|            |
                                           | 5| 9| 9| 9| 9| 6| 9| 6| 9| 6| 6| 6| 6| 6| 8| 5| 5| 5| 5| 5| 6| 6| 1| 3| 6|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
   Thymus                                  | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Atrophy                              |                   2                    2              2     3     3  3   |     13  2.8|
      Hyperplasia, Lymphoid                |                                                                          |      2  3.0|
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |                                                                      2   |      5  2.2|
                                           |__________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Edema                                |                                                                          |      1  3.0|
      Ulcer                                |                                                                          |      1  4.0|
      Epidermis, Hyperplasia               |                                                                          |      1  4.0|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Myelofibrosis                        |                      2                                               3   |      2  2.5|
                                           |__________________________________________________________________________|____________|
   Skeletal Muscle                         |                +                                                        +|   5        |
      Inflammation, Chronic Active         |                                                                         3|      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Peripheral Nerve                        |                                                                          |   1        |
      Atrophy                              |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Spinal Cord                             |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  48                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 7| 7| 7| 2| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 6| 5| 7| 5| 7|            |
                             DAY ON TEST   | 1| 2| 2| 2| 2| 3| 1| 3| 7| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 9| 2| 9| 3|            |
                                           | 5| 9| 9| 9| 9| 6| 9| 6| 9| 6| 6| 6| 6| 6| 8| 5| 5| 5| 5| 5| 6| 6| 1| 3| 6|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
      Hemorrhage                           |                                                                          |      3  2.0|
      Hyperplasia, Lymphoid                |                            2                    2        3               |      3  2.3|
      Infiltration Cellular, Histiocyte    |                                                          2               |      4  1.8|
      Alveolar Epithelium, Hyperplasia     |                1                          2  2                           |      4  2.0|
      Perivascular, Inflammation, Chronic  |                                                                          |            |
          Active                           |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic                |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cataract                             |                                                                      1   |      2  1.5|
      Inflammation, Chronic                |                                                                      2   |      3  1.3|
      Cornea, Mineralization               |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Focal                   |                                                                         1|      2  2.0|
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Cyst                                 |                            3                                             |      1  3.0|
      Hydronephrosis                       |                                                                          |      1  2.0|
      Hyperplasia, Lymphoid                |                      2              3                                2   |      8  2.4|
      Infarct                              |    2           2  3  1                                      3            |      8  2.5|
      Nephropathy                          |    1           1     1                       1                       3   |     12  1.2|
      Renal Tubule, Accumulation, Hyaline  |                                                                          |            |
          Droplet                          |                                                                3         |      2  3.0|
      Renal Tubule, Dilatation             |                                                                          |      1  2.0|
      Renal Tubule, Necrosis               |                                                                          |      1  2.0|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  49                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 7| 7| 7| 7| 2| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 6| 5| 7| 5| 7|            |
                             DAY ON TEST   | 1| 2| 2| 2| 2| 3| 1| 3| 7| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 9| 2| 9| 3|            |
                                           | 5| 9| 9| 9| 9| 6| 9| 6| 9| 6| 6| 6| 6| 6| 8| 5| 5| 5| 5| 5| 6| 6| 1| 3| 6|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE FEMALE                      | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 URINARY SYSTEM - cont                     |                                                                          |            |
      Renal Tubule, Pigmentation           |                                              3                           |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia, Lymphoid                |                                     3                    2               |      2  2.5|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  50                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 4| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 7| 6| 7| 7| 7| 2| 7| 7| 6| 7|             
                             DAY ON TEST   | 3| 3| 3| 5| 3| 3| 1| 3| 3| 3| 5| 3| 2| 3| 3| 3| 2| 1| 3| 3| 0| 2| 3| 6| 1|             
                                           | 4| 1| 0| 8| 5| 1| 0| 4| 4| 0| 1| 0| 9| 4| 1| 1| 6| 5| 4| 1| 4| 9| 4| 2| 7|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0 MG/L                                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |__________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
                                           |__________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  A  +  +     M  +  A  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  A  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +     +  +  A  +|             
      Edema                                |                                                                          |             
                                           |__________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  A  +  +     +  +  A  +|             
                                           |__________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +     +  +  A  +|             
                                           |__________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +     +  +  A  +|             
                                           |__________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Basophilic Focus                     |                                        X                       X         |             
      Clear Cell Focus                     |    X                       X     X  X        X        X  X     X         |             
      Congestion                           |             3                                                            |             
      Eosinophilic Focus                   | X     X                    X           X  X  X  X  X  X                  |             
      Hemorrhage                           |                                                                3         |             
      Infarct                              |                         4                                                |             
      Infiltration Cellular, Mixed Cell    |             3                                                            |             
      Mixed Cell Focus                     |          X                       X                                       |             
      Necrosis, Focal                      |                      4                          1  3                     |             
      Centrilobular, Necrosis              |             3                                                            |             
      Hepatocyte, Vacuolization Cytoplasmic| 3  3     1                          3        3           3               |             
      Kupffer Cell, Pigmentation           |                                                                          |             
                                           |__________________________________________________________________________|             
   Mesentery                               |    +                             +           +                    +  +   |             
      Fat, Necrosis                        |    3                                         3                    3      |             
                                           |__________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  A  +|             
      Acinus, Cytoplasmic Alteration       |                                                                          |             
                                           |__________________________________________________________________________|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  51                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 4| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 7| 6| 7| 7| 7| 2| 7| 7| 6| 7|             
                             DAY ON TEST   | 3| 3| 3| 5| 3| 3| 1| 3| 3| 3| 5| 3| 2| 3| 3| 3| 2| 1| 3| 3| 0| 2| 3| 6| 1|             
                                           | 4| 1| 0| 8| 5| 1| 0| 4| 4| 0| 1| 0| 9| 4| 1| 1| 6| 5| 4| 1| 4| 9| 4| 2| 7|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0 MG/L                                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Atrophy                              |                                                                          |             
      Hyperplasia, Lymphoid                |                                                       2                  |             
                                           |__________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Erosion                              |                                                                          |             
      Inflammation, Chronic                |                            2                                             |             
      Ulcer                                |                                                                          |             
      Epithelium, Hyperplasia              |          1                 3                                             |             
                                           |__________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Erosion                              |                                                 3                       3|             
                                           |__________________________________________________________________________|             
   Tongue                                  |                                  +                                       |             
                                           |__________________________________________________________________________|             
   Tooth                                   |                      +                 +        +                       +|             
      Malformation                         |                      X                 X        X                       X|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Cardiomyopathy                       |                                                                          |             
      Inflammation, Chronic                |          2                                                               |             
      Mineralization                       |             2                                                            |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Accessory Adrenal Cortical Nodule    |       3        3                          3                              |             
      Hyperplasia, Focal                   |       1                                                        2         |             
      Hypertrophy, Focal                   |    1                    2  3     2  2                    3     2  2      |             
      Hypertrophy                          |                                              3                           |             
      Capsule, Hyperplasia                 | 2  3     2                                                     2         |             
                                           |__________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Hyperplasia                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  A  +|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  52                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 4| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 7| 6| 7| 7| 7| 2| 7| 7| 6| 7|             
                             DAY ON TEST   | 3| 3| 3| 5| 3| 3| 1| 3| 3| 3| 5| 3| 2| 3| 3| 3| 2| 1| 3| 3| 0| 2| 3| 6| 1|             
                                           | 4| 1| 0| 8| 5| 1| 0| 4| 4| 0| 1| 0| 9| 4| 1| 1| 6| 5| 4| 1| 4| 9| 4| 2| 7|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0 MG/L                                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
      Hyperplasia                          | 2  3  2  2  2  2  2  2     3  2  2  2     1     3     3  3     2  2     1|             
                                           |__________________________________________________________________________|             
   Parathyroid Gland                       | +  I  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +     +  +  +  +|             
                                           |__________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +     +  +  +  +|             
      Pars Distalis, Cyst                  |                3                                         3               |             
      Pars Distalis, Hyperplasia, Focal    |                                                                          |             
                                           |__________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Degeneration, Cystic                 |                               1                                         2|             
      Follicular Cell, Hyperplasia         |                                              1                    1      |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Atypia Cellular                      |                2                                                         |             
      Granuloma Sperm                      |                                                                          |             
      Spermatocele                         |                                                                          |             
                                           |__________________________________________________________________________|             
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Cyst                                 |    3  3        3     3  3           3  3  3     3  3  3        3     3  3|             
      Inflammation, Chronic                | 2           2  2     2  2              2           2  2                 2|             
                                           |__________________________________________________________________________|             
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
                                           |__________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Degeneration                         |                                                                3         |             
      Inflammation, Chronic                |                                                                          |             
                                           |__________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Germinal Epithelium, Atrophy         |                2  2                                                      |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +     +  +  +  +|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  53                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 4| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 7| 6| 7| 7| 7| 2| 7| 7| 6| 7|             
                             DAY ON TEST   | 3| 3| 3| 5| 3| 3| 1| 3| 3| 3| 5| 3| 2| 3| 3| 3| 2| 1| 3| 3| 0| 2| 3| 6| 1|             
                                           | 4| 1| 0| 8| 5| 1| 0| 4| 4| 0| 1| 0| 9| 4| 1| 1| 6| 5| 4| 1| 4| 9| 4| 2| 7|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0 MG/L                                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
      Depletion Cellular                   |                   2                                                      |             
      Hyperplasia                          |       2     2           2     2  1                 3              1      |             
                                           |__________________________________________________________________________|             
   Lymph Node                              |                                        +                                 |             
      Mediastinal, Hyperplasia, Lymphoid   |                                        3                                 |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Atrophy                              |                                                                          |             
      Hematopoietic Cell Proliferation     |             2                                                            |             
      Hemorrhage                           |                                                                      2   |             
      Hyperplasia, Lymphoid                |                2  3        2           2           2     2              4|             
      Pigmentation                         |                         2                       2  2                     |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  M  +|             
      Atrophy                              |                                                                         2|             
      Hematopoietic Cell Proliferation     |       2                                                                  |             
      Hemorrhage                           |       2                                                  1              1|             
      Hyperplasia, Lymphoid                |                                                                          |             
                                           |__________________________________________________________________________|             
   Spleen                                  | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Hematopoietic Cell Proliferation     |       3     3           1     3                    4              2      |             
      Lymphoid Follicle, Atrophy           |                                                 3                       2|             
      Lymphoid Follicle, Hyperplasia       |                                     2                                    |             
                                           |__________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +     +  +  M  +|             
      Atrophy                              |             3  3  3                    4        3                       2|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
                                           |__________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Ulcer                                |       4                                                                  |             
      Epidermis, Hyperplasia               |                                                                1         |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  54                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 4| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 7| 6| 7| 7| 7| 2| 7| 7| 6| 7|             
                             DAY ON TEST   | 3| 3| 3| 5| 3| 3| 1| 3| 3| 3| 5| 3| 2| 3| 3| 3| 2| 1| 3| 3| 0| 2| 3| 6| 1|             
                                           | 4| 1| 0| 8| 5| 1| 0| 4| 4| 0| 1| 0| 9| 4| 1| 1| 6| 5| 4| 1| 4| 9| 4| 2| 7|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0 MG/L                                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM - cont             |                                                                          |             
      Cranium, Hyperostosis                |                                     3                                    |             
                                           |__________________________________________________________________________|             
   Skeletal Muscle                         |          +                                                               |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
                                           |__________________________________________________________________________|             
   Peripheral Nerve                        |          +  +                                                            |             
                                           |__________________________________________________________________________|             
   Spinal Cord                             |          +  +                                                            |             
      Gliosis                              |          3                                                               |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |__________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Edema                                |                               2                                          |             
      Hemorrhage                           |                               2                                      3   |             
      Hyperplasia, Lymphoid                |                                        3                                 |             
      Infiltration Cellular, Histiocyte    |                                                 1                        |             
      Metaplasia, Osseous                  |                                                                          |             
      Alveolar Epithelium, Hyperplasia     | 1                                                                        |             
                                           |__________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Inflammation, Chronic                |                                                                          |             
                                           |__________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
                                           |__________________________________________________________________________|             
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
      Hyperplasia, Focal                   |       2                                   2                              |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  55                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 4| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 7| 6| 7| 7| 7| 2| 7| 7| 6| 7|             
                             DAY ON TEST   | 3| 3| 3| 5| 3| 3| 1| 3| 3| 3| 5| 3| 2| 3| 3| 3| 2| 1| 3| 3| 0| 2| 3| 6| 1|             
                                           | 4| 1| 0| 8| 5| 1| 0| 4| 4| 0| 1| 0| 9| 4| 1| 1| 6| 5| 4| 1| 4| 9| 4| 2| 7|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0 MG/L                                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 URINARY SYSTEM - cont                     |                                                                          |             
      Cyst                                 |                3                    3     3        3  3           3      |             
      Hydronephrosis                       |       2                                                                  |             
      Hyperplasia, Lymphoid                |       3                                                                 3|             
      Infarct                              | 2              2                 1                                       |             
      Metaplasia, Osseous                  |                2  3                       2                       2  3   |             
      Nephropathy                          | 1  1  1  1  1           1  2  1  1  2  2  2  2        2  1     2  1     3|             
      Renal Tubule, Dilatation             |                                                                          |             
      Renal Tubule, Hyperplasia            |                                                                2         |             
      Renal Tubule, Necrosis               |                                                                          |             
      Renal Tubule, Pigmentation           |                                                                          |             
                                           |__________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +     +  +  +  +|             
 __________________________________________|__________________________________________________________________________              
                                                             Page  56                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 4| 7| 6| 7| 7| 7| 7| 7| 6| 7| 5| 7| 7| 6| 6| 7| 5| 7| 7| 7| 7| 7| 6|            |
                             DAY ON TEST   | 3| 3| 8| 2| 6| 3| 3| 3| 3| 3| 5| 1| 9| 3| 3| 3| 0| 3| 1| 3| 3| 2| 3| 0| 3|            |
                                           | 0| 4| 2| 9| 9| 4| 0| 0| 1| 4| 5| 0| 6| 1| 4| 1| 1| 1| 4| 1| 1| 9| 0| 3| 2|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      A     |
    0 MG/L                                 | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Gallbladder                             | +  +  M  +  A  +  +  +  +  +  +  +  +  +  +  +  A  +  A  +  +  +  +  A  M|  39        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  A  +  A  +  +  +  +  A  +|  43        |
      Edema                                |                            2                                      2      |      2  2.0|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  A  +  A  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  M|  42        |
                                           |__________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  A  +  +  +  +  +  A  +  +  +  +  +  A  +  +  +  +  +  +  +  +|  44        |
                                           |__________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  A  +  A  +  +  +  +  +  +|  44        |
                                           |__________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Basophilic Focus                     |                                                                          |      2     |
      Clear Cell Focus                     |                      X                    X                              |     10     |
      Congestion                           |                                                                          |      1  3.0|
      Eosinophilic Focus                   |    X     X        X        X              X        X                     |     15     |
      Hemorrhage                           |                                                                          |      1  3.0|
      Infarct                              |                                                                          |      1  4.0|
      Infiltration Cellular, Mixed Cell    |       2                                                                  |      2  2.5|
      Mixed Cell Focus                     |                                                 X                        |      3     |
      Necrosis, Focal                      |       2                       2  4  4                    3               |      8  2.9|
      Centrilobular, Necrosis              |                                     4                 1              4   |      4  3.0|
      Hepatocyte, Vacuolization Cytoplasmic|                      3                          3                        |      8  2.8|
      Kupffer Cell, Pigmentation           | 3                                                                        |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Mesentery                               |                   +                                               +      |   7        |
      Fat, Necrosis                        |                   4                                               4      |      5  3.4|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  57                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 4| 7| 6| 7| 7| 7| 7| 7| 6| 7| 5| 7| 7| 6| 6| 7| 5| 7| 7| 7| 7| 7| 6|            |
                             DAY ON TEST   | 3| 3| 8| 2| 6| 3| 3| 3| 3| 3| 5| 1| 9| 3| 3| 3| 0| 3| 1| 3| 3| 2| 3| 0| 3|            |
                                           | 0| 4| 2| 9| 9| 4| 0| 0| 1| 4| 5| 0| 6| 1| 4| 1| 1| 1| 4| 1| 1| 9| 0| 3| 2|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      A     |
    0 MG/L                                 | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +|  46        |
      Acinus, Cytoplasmic Alteration       |                                                          3  3            |      2  3.0|
                                           |__________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Atrophy                              |                2                                                         |      1  2.0|
      Hyperplasia, Lymphoid                |                                                    2                 2   |      3  2.0|
                                           |__________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Erosion                              |                                     2                                    |      1  2.0|
      Inflammation, Chronic                |                         2                             2                  |      3  2.0|
      Ulcer                                |       1                                                  1               |      2  1.0|
      Epithelium, Hyperplasia              |                         3                          2                     |      4  2.3|
                                           |__________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +|  47        |
      Erosion                              |                                                                          |      2  3.0|
                                           |__________________________________________________________________________|____________|
   Tongue                                  |                                                                          |   1        |
                                           |__________________________________________________________________________|____________|
   Tooth                                   |    +                                                                     |   5        |
      Malformation                         |    X                                                                     |      5     |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Cardiomyopathy                       |             2                                                            |      1  2.0|
      Inflammation, Chronic                |                                                                          |      1  2.0|
      Mineralization                       |                                     3                       2            |      3  2.3|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Accessory Adrenal Cortical Nodule    | 3  3                                            3           3            |      7  3.0|
      Hyperplasia, Focal                   |                      2        2                                          |      4  1.8|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  58                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 4| 7| 6| 7| 7| 7| 7| 7| 6| 7| 5| 7| 7| 6| 6| 7| 5| 7| 7| 7| 7| 7| 6|            |
                             DAY ON TEST   | 3| 3| 8| 2| 6| 3| 3| 3| 3| 3| 5| 1| 9| 3| 3| 3| 0| 3| 1| 3| 3| 2| 3| 0| 3|            |
                                           | 0| 4| 2| 9| 9| 4| 0| 0| 1| 4| 5| 0| 6| 1| 4| 1| 1| 1| 4| 1| 1| 9| 0| 3| 2|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      A     |
    0 MG/L                                 | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
      Hypertrophy, Focal                   |                1           1                       2              1      |     12  1.8|
      Hypertrophy                          |                                                                          |      1  3.0|
      Capsule, Hyperplasia                 |                2     2     3                                             |      7  2.3|
                                           |__________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia                          |                                                             2            |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +|  46        |
      Hyperplasia                          |    3  1  2     2  2     2  3     2  3     2        2        3  3  2  1   |     34  2.2|
                                           |__________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  I  +  +  +  +  +  +|  45        |
                                           |__________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  M  +  +  +  +  +  M|  45        |
      Pars Distalis, Cyst                  |    3              3     3              3                 3               |      7  3.0|
      Pars Distalis, Hyperplasia, Focal    |                                        3                                 |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +|  48        |
      Degeneration, Cystic                 |    3           2                          2                              |      5  2.0|
      Follicular Cell, Hyperplasia         |                                                                   1      |      3  1.0|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Atypia Cellular                      |                         2           3        3              2            |      5  2.4|
      Granuloma Sperm                      |                                                          4               |      1  4.0|
      Spermatocele                         |                      3                                                   |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Cyst                                 | 3     3     3  3              3  2        2  3              3  3     3   |     25  2.9|
      Inflammation, Chronic                | 3  2        3  2     2     2  3  2           2           2     2     2   |     21  2.1|
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  59                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 4| 7| 6| 7| 7| 7| 7| 7| 6| 7| 5| 7| 7| 6| 6| 7| 5| 7| 7| 7| 7| 7| 6|            |
                             DAY ON TEST   | 3| 3| 8| 2| 6| 3| 3| 3| 3| 3| 5| 1| 9| 3| 3| 3| 0| 3| 1| 3| 3| 2| 3| 0| 3|            |
                                           | 0| 4| 2| 9| 9| 4| 0| 0| 1| 4| 5| 0| 6| 1| 4| 1| 1| 1| 4| 1| 1| 9| 0| 3| 2|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      A     |
    0 MG/L                                 | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 GENITAL SYSTEM - cont                     |                                                                          |            |
   Prostate                                | +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                           |__________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Degeneration                         |                                     3                    3               |      3  3.0|
      Inflammation, Chronic                |                                                          3               |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Germinal Epithelium, Atrophy         |             3           2        1  3  2     2              2            |      9  2.1|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Depletion Cellular                   |                                                                          |      1  2.0|
      Hyperplasia                          | 3     2  2  3           3     4  4     3     2  2  2     4  2  3     4   |     22  2.5|
                                           |__________________________________________________________________________|____________|
   Lymph Node                              |                                                                          |   1        |
      Mediastinal, Hyperplasia, Lymphoid   |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Atrophy                              |                                     3                 2  2  3           2|      5  2.4|
      Hematopoietic Cell Proliferation     |                                                                          |      1  2.0|
      Hemorrhage                           |                                                                          |      1  2.0|
      Hyperplasia, Lymphoid                | 3  4           3  2                    2           2           2  2      |     15  2.5|
      Pigmentation                         |       2                             2                    3              2|      7  2.1|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  A  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
      Atrophy                              |                                  2  3                                   3|      4  2.5|
      Hematopoietic Cell Proliferation     |                                                                          |      1  2.0|
      Hemorrhage                           | 3  2        2           2                       2                        |      8  1.9|
      Hyperplasia, Lymphoid                | 2        3                                                               |      2  2.5|
                                           |__________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +|  47        |
      Hematopoietic Cell Proliferation     | 4           3           4     4  4  4  3     4     2     2  3           3|     18  3.1|
      Lymphoid Follicle, Atrophy           |                               2                             3            |      4  2.5|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  60                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 4| 7| 6| 7| 7| 7| 7| 7| 6| 7| 5| 7| 7| 6| 6| 7| 5| 7| 7| 7| 7| 7| 6|            |
                             DAY ON TEST   | 3| 3| 8| 2| 6| 3| 3| 3| 3| 3| 5| 1| 9| 3| 3| 3| 0| 3| 1| 3| 3| 2| 3| 0| 3|            |
                                           | 0| 4| 2| 9| 9| 4| 0| 0| 1| 4| 5| 0| 6| 1| 4| 1| 1| 1| 4| 1| 1| 9| 0| 3| 2|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      A     |
    0 MG/L                                 | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
      Lymphoid Follicle, Hyperplasia       |                                                          3     2         |      3  2.3|
                                           |__________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  M  +  +  +  M  +  M  +  +  +  M  M  +  +  +  +  +  +  +  +  +|  42        |
      Atrophy                              |       3                          3  4                 3  4  3        3  3|     14  3.1|
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Ulcer                                |                                  4                       4               |      3  4.0|
      Epidermis, Hyperplasia               | 2                                3                                       |      3  2.0|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Cranium, Hyperostosis                |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Skeletal Muscle                         |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Peripheral Nerve                        |                                                                          |   2        |
                                           |__________________________________________________________________________|____________|
   Spinal Cord                             |                                                                          |   2        |
      Gliosis                              |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Edema                                |                                                 2                        |      2  2.0|
      Hemorrhage                           |                                                                          |      2  2.5|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  61                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 4| 7| 6| 7| 7| 7| 7| 7| 6| 7| 5| 7| 7| 6| 6| 7| 5| 7| 7| 7| 7| 7| 6|            |
                             DAY ON TEST   | 3| 3| 8| 2| 6| 3| 3| 3| 3| 3| 5| 1| 9| 3| 3| 3| 0| 3| 1| 3| 3| 2| 3| 0| 3|            |
                                           | 0| 4| 2| 9| 9| 4| 0| 0| 1| 4| 5| 0| 6| 1| 4| 1| 1| 1| 4| 1| 1| 9| 0| 3| 2|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      A     |
    0 MG/L                                 | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
      Hyperplasia, Lymphoid                |                                                    2           3         |      3  2.7|
      Infiltration Cellular, Histiocyte    |                                           1                              |      2  1.0|
      Metaplasia, Osseous                  |                            1                                             |      1  1.0|
      Alveolar Epithelium, Hyperplasia     |                   2                                                      |      2  1.5|
                                           |__________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M|  48        |
      Inflammation, Chronic                |                               2                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia, Focal                   |                                              4           2           3   |      5  2.6|
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Cyst                                 |                            3           3                       3         |      9  3.0|
      Hydronephrosis                       | 2           2                    2                                       |      4  2.0|
      Hyperplasia, Lymphoid                | 3                       3                                      1         |      5  2.6|
      Infarct                              |                                                                          |      3  1.7|
      Metaplasia, Osseous                  |                                                                   1      |      6  2.2|
      Nephropathy                          | 2  3        4  1  1  1  3  2     3  2  1  1  3     1        2  1  2     4|     36  1.8|
      Renal Tubule, Dilatation             |                                                          3               |      1  3.0|
      Renal Tubule, Hyperplasia            |                                                                          |      1  2.0|
      Renal Tubule, Necrosis               |                                     2                                    |      1  2.0|
      Renal Tubule, Pigmentation           |                                     4                                    |      1  4.0|
                                           |__________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  62                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 7| 6| 7| 7| 5| 2| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 3| 3| 3| 9| 2| 3| 7| 9| 3| 3| 3| 3| 3| 3| 2| 3| 2| 9| 3| 2| 3| 3|             
                                           | 0| 1| 0| 4| 1| 4| 0| 9| 0| 3| 7| 1| 0| 1| 1| 0| 1| 9| 1| 9| 1| 1| 9| 0| 0|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    50 MG/L                                | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |__________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  M  +  +  +  A  +  +  +  +  +  +  +  M  +  +  +  M  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +|             
      Edema                                |       2                                                                  |             
                                           |__________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |                                                    2                     |             
                                           |__________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Clear Cell Focus                     |             X        X           X        X              X           X   |             
      Cyst                                 |                                                                          |             
      Eosinophilic Focus                   |                   X  X              X        X                    X      |             
      Hepatodiaphragmatic Nodule           |                                                                          |             
      Infiltration Cellular, Mixed Cell    |          3                                                        2      |             
      Mixed Cell Focus                     |                X                 X        X              X               |             
      Necrosis, Focal                      |                            4                          3     4     1      |             
      Tension Lipidosis                    |                                                                          |             
      Centrilobular, Necrosis              |                            2  1                                          |             
      Hepatocyte, Vacuolization Cytoplasmic|    3                 3  3        4        3              3               |             
      Kupffer Cell, Pigmentation           |                                                                          |             
                                           |__________________________________________________________________________|             
   Mesentery                               | +                                                        +               |             
      Fat, Necrosis                        | 2                                                        2               |             
                                           |__________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Necrosis                             |                                                                          |             
      Acinus, Cytoplasmic Alteration       |          3                                                               |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  63                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 7| 6| 7| 7| 5| 2| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 3| 3| 3| 9| 2| 3| 7| 9| 3| 3| 3| 3| 3| 3| 2| 3| 2| 9| 3| 2| 3| 3|             
                                           | 0| 1| 0| 4| 1| 4| 0| 9| 0| 3| 7| 1| 0| 1| 1| 0| 1| 9| 1| 9| 1| 1| 9| 0| 0|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    50 MG/L                                | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |__________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |                      2                                2        2         |             
                                           |__________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Diverticulum                         |                                                                          |             
      Inflammation, Chronic                |                                                 3                        |             
      Ulcer                                |                                                                          |             
      Epithelium, Hyperplasia              |                                                 3                        |             
                                           |__________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Erosion                              |                                                                          |             
      Glands, Hyperplasia                  |    2                                                                     |             
                                           |__________________________________________________________________________|             
   Tooth                                   |             +                          +                       +         |             
      Malformation                         |             X                          X                       X         |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cardiomyopathy                       |                                                                          |             
      Myocardium, Necrosis                 |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Accessory Adrenal Cortical Nodule    |                                        3                 3              3|             
      Hyperplasia, Focal                   |                2     3                                2                  |             
      Hypertrophy, Focal                   |             1                    2     3                 1               |             
      Capsule, Hyperplasia                 | 3                    3                                                  2|             
                                           |__________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          | 2        2  4  2  2     2  3     2  3  2  2  2     3  2        2  2  3   |             
                                           |__________________________________________________________________________|             
   Parathyroid Gland                       | I  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  64                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 7| 6| 7| 7| 5| 2| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 3| 3| 3| 9| 2| 3| 7| 9| 3| 3| 3| 3| 3| 3| 2| 3| 2| 9| 3| 2| 3| 3|             
                                           | 0| 1| 0| 4| 1| 4| 0| 9| 0| 3| 7| 1| 0| 1| 1| 0| 1| 9| 1| 9| 1| 1| 9| 0| 0|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    50 MG/L                                | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
      Cyst                                 |                                                       2                  |             
                                           |__________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Pars Distalis, Cyst                  |                      3                             3                     |             
                                           |__________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration, Cystic                 |       1              2                    1  2  2                        |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Coagulating Gland                       |                                                             +            |             
                                           |__________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atypia Cellular                      |                                                                         2|             
      Granuloma Sperm                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |       3           3  3     3     3  3        3  3  3     3     3  3     3|             
      Inflammation, Chronic                |       2  2  2     3     2  2        2        2  3  3  2        3  2     4|             
                                           |__________________________________________________________________________|             
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic                | 2                                                     2           4      |             
                                           |__________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration                         |                                                             3            |             
                                           |__________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Germinal Epithelium, Atrophy         |                                              2                          2|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |       3  3  3     3           2                 4     2     3     3     2|             
                                           |__________________________________________________________________________|             
   Lymph Node                              |                                                             +            |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  65                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 7| 6| 7| 7| 5| 2| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 3| 3| 3| 9| 2| 3| 7| 9| 3| 3| 3| 3| 3| 3| 2| 3| 2| 9| 3| 2| 3| 3|             
                                           | 0| 1| 0| 4| 1| 4| 0| 9| 0| 3| 7| 1| 0| 1| 1| 0| 1| 9| 1| 9| 1| 1| 9| 0| 0|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    50 MG/L                                | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
      Iliac, Ectasia                       |                                                                          |             
      Inguinal, Pigmentation               |                                                                          |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                                                                          |             
      Hyperplasia, Lymphoid                | 2              2                    2  3     2     2        2     2      |             
      Pigmentation                         |       2                 2  2                                             |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |       2           3                                                      |             
      Hematopoietic Cell Proliferation     |                                                 1                        |             
      Hemorrhage                           |                                  1        3     2                        |             
      Hyperplasia, Lymphoid                |                2     2  3                                         4      |             
                                           |__________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hematopoietic Cell Proliferation     | 3     4  3  2     4     1     3        3        2     3           2      |             
      Pigmentation                         |                                                                          |             
      Lymphoid Follicle, Atrophy           |                   3        3                    2           3            |             
      Lymphoid Follicle, Hyperplasia       |                         2                                         3      |             
                                           |__________________________________________________________________________|             
   Thymus                                  | +  +  +  M  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |       2           3        3                 3  4  2        3     2     3|             
      Hyperplasia, Lymphoid                |                                  3                                       |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst Epithelial Inclusion            |                                                                   3      |             
      Ulcer                                |                                                 4                        |             
      Epidermis, Hyperplasia               |                                                 2                        |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperostosis                         |                                                                          |             
                                           |__________________________________________________________________________|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  66                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 7| 6| 7| 7| 5| 2| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 3| 3| 3| 9| 2| 3| 7| 9| 3| 3| 3| 3| 3| 3| 2| 3| 2| 9| 3| 2| 3| 3|             
                                           | 0| 1| 0| 4| 1| 4| 0| 9| 0| 3| 7| 1| 0| 1| 1| 0| 1| 9| 1| 9| 1| 1| 9| 0| 0|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    50 MG/L                                | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM - cont             |                                                                          |             
   Skeletal Muscle                         |                                                                          |             
      Atrophy                              |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
      Atrophy                              |                                                                          |             
                                           |__________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |__________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Infiltration Cellular, Histiocyte    |                                              1  4     2                  |             
      Metaplasia, Osseous                  |                      1                                                   |             
      Alveolar Epithelium, Hyperplasia     |       2              1                 1  3  1                           |             
                                           |__________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic                |                                                             3            |             
                                           |__________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                   4                                                      |             
      Cataract                             |                      2                                                   |             
                                           |__________________________________________________________________________|             
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                   3                                                      |             
      Hyperplasia, Focal                   |                                                                          |             
                                           |__________________________________________________________________________|             
   Lacrimal Gland                          |                   +                                                      |             
      Cyst                                 |                   3                                                      |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  67                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 7| 7| 6| 7| 7| 5| 2| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 3| 3| 3| 9| 2| 3| 7| 9| 3| 3| 3| 3| 3| 3| 2| 3| 2| 9| 3| 2| 3| 3|             
                                           | 0| 1| 0| 4| 1| 4| 0| 9| 0| 3| 7| 1| 0| 1| 1| 0| 1| 9| 1| 9| 1| 1| 9| 0| 0|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    50 MG/L                                | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 URINARY SYSTEM - cont                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 | 3              3     3                 3     3           3     3  3      |             
      Hydronephrosis                       |                                                                          |             
      Hyperplasia, Lymphoid                |                                                       2                  |             
      Infarct                              |                                        3        2                        |             
      Inflammation, Suppurative            |                                                                          |             
      Metaplasia, Osseous                  |                                  3                                       |             
      Nephropathy                          | 1  1  3  2  2  2     1  2  1     1  2  1  1  1  1  2  3  1  2  1  1  2  2|             
      Renal Tubule, Dilatation             |                                                                          |             
      Renal Tubule, Hyperplasia            |                                                          1               |             
      Renal Tubule, Pigmentation           |       3                                               4                  |             
                                           |__________________________________________________________________________|             
   Urethra                                 |                                                                          |             
      Angiectasis                          |                                                                          |             
      Inflammation, Chronic Active         |                                                                          |             
                                           |__________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                                                                          |             
      Hyperplasia, Lymphoid                |                                                       2                  |             
 __________________________________________|__________________________________________________________________________              
                                                             Page  68                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 6| 5| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 3| 6| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 8| 5| 9| 8| 5| 3| 3| 1| 2| 3| 3| 3| 3|            |
                                           | 4| 2| 0| 1| 4| 0| 9| 4| 4| 0| 1| 0| 2| 9| 6| 4| 9| 4| 0| 7| 1| 4| 0| 1| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Gallbladder                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Edema                                |                                              3                           |      2  2.5|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Lymphoid                |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Clear Cell Focus                     |          X     X  X     X                                      X  X  X   |     13     |
      Cyst                                 |                               3                                          |      1  3.0|
      Eosinophilic Focus                   |          X     X     X                                X              X   |     10     |
      Hepatodiaphragmatic Nodule           |                                           X                              |      1     |
      Infiltration Cellular, Mixed Cell    |                                        2     3                           |      4  2.5|
      Mixed Cell Focus                     |                   X                       X                 X            |      7     |
      Necrosis, Focal                      |                            1           3     3                           |      7  2.7|
      Tension Lipidosis                    |                                     X                                    |      1     |
      Centrilobular, Necrosis              |                                                          4  2            |      4  2.3|
      Hepatocyte, Vacuolization Cytoplasmic|          3                                                     3  3      |      9  3.1|
      Kupffer Cell, Pigmentation           |                                                          2               |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Mesentery                               |       +                       +           +  +                       +   |   7        |
      Fat, Necrosis                        |       3                       3              4                       3   |      6  2.8|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  69                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 6| 5| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 3| 6| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 8| 5| 9| 8| 5| 3| 3| 1| 2| 3| 3| 3| 3|            |
                                           | 4| 2| 0| 1| 4| 0| 9| 4| 4| 0| 1| 0| 2| 9| 6| 4| 9| 4| 0| 7| 1| 4| 0| 1| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Necrosis                             |    4                                                                     |      1  4.0|
      Acinus, Cytoplasmic Alteration       |                                              3                           |      2  3.0|
                                           |__________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Lymphoid                |             2                                                            |      4  2.0|
                                           |__________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Diverticulum                         |                            X                                            X|      2     |
      Inflammation, Chronic                |                                                                          |      1  3.0|
      Ulcer                                |    2                                   3                                 |      2  2.5|
      Epithelium, Hyperplasia              |                                        3  3                              |      3  3.0|
                                           |__________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Erosion                              |    1                                   3                                 |      2  2.0|
      Glands, Hyperplasia                  |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Tooth                                   |                                  +                       +              +|   6        |
      Malformation                         |                                  X                       X              X|      6     |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cardiomyopathy                       |                                           1                              |      1  1.0|
      Myocardium, Necrosis                 |                                        3                                 |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Accessory Adrenal Cortical Nodule    |                                                    3           3         |      5  3.0|
      Hyperplasia, Focal                   |                               3  2                          2  2         |      7  2.3|
      Hypertrophy, Focal                   |          2     1     1              1              2           1  1      |     11  1.5|
      Capsule, Hyperplasia                 |                                  3                                       |      4  2.8|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  70                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 6| 5| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 3| 6| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 8| 5| 9| 8| 5| 3| 3| 1| 2| 3| 3| 3| 3|            |
                                           | 4| 2| 0| 1| 4| 0| 9| 4| 4| 0| 1| 0| 2| 9| 6| 4| 9| 4| 0| 7| 1| 4| 0| 1| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |                                                                      1   |      1  1.0|
                                           |__________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |       2  2        3  2  2  3     2  2        2  2  3  2        3     2  4|     32  2.4|
                                           |__________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Cyst                                 |                      3                                                   |      2  2.5|
                                           |__________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Pars Distalis, Cyst                  |          3        3                                3              3     3|      7  3.0|
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration, Cystic                 |                                  2                    2  1               |      8  1.6|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Coagulating Gland                       |                                                                          |   1        |
                                           |__________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atypia Cellular                      |                   3                             3        2               |      4  2.5|
      Granuloma Sperm                      |                                                 4                       3|      2  3.5|
                                           |__________________________________________________________________________|____________|
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |    3  3  3  3  3     3  3  3  3           3     3        3           3   |     26  3.0|
      Inflammation, Chronic                |    2  1  2  3        2  2  3     2              2  3  3  2  2  2     2  2|     30  2.3|
                                           |__________________________________________________________________________|____________|
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic                |    3                                                                     |      4  2.8|
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  71                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 6| 5| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 3| 6| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 8| 5| 9| 8| 5| 3| 3| 1| 2| 3| 3| 3| 3|            |
                                           | 4| 2| 0| 1| 4| 0| 9| 4| 4| 0| 1| 0| 2| 9| 6| 4| 9| 4| 0| 7| 1| 4| 0| 1| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 GENITAL SYSTEM - cont                     |                                                                          |            |
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration                         |                                     4              3     2        3      |      5  3.0|
                                           |__________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Germinal Epithelium, Atrophy         |                                                 2        2               |      4  2.0|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |    3  2        2  2     2     2        3  3  3        3  3              3|     22  2.7|
                                           |__________________________________________________________________________|____________|
   Lymph Node                              |                                              +                           |   2        |
      Iliac, Ectasia                       |                                              2                           |      1  2.0|
      Inguinal, Pigmentation               |                                              3                           |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atrophy                              |    2                                   3                                 |      2  2.5|
      Hyperplasia, Lymphoid                |       2                 2  3  2  3        2                              |     14  2.2|
      Pigmentation                         |                            2              2  2           2              2|      8  2.0|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +|  49        |
      Atrophy                              |                                                                          |      2  2.5|
      Hematopoietic Cell Proliferation     |                                                                          |      1  1.0|
      Hemorrhage                           |                3     1                                                   |      5  2.0|
      Hyperplasia, Lymphoid                |             3                             2           2                 2|      8  2.5|
                                           |__________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hematopoietic Cell Proliferation     |    2  1                 2     2           2  2        4  4              2|     20  2.6|
      Pigmentation                         |                                        2                                 |      1  2.0|
      Lymphoid Follicle, Atrophy           |    2                                   3     3                           |      7  2.7|
      Lymphoid Follicle, Hyperplasia       |                         3                                   2        3  2|      6  2.5|
                                           |__________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  M  +|  45        |
      Atrophy                              |    3                       3     2  2  4        3        4               |     16  2.9|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  72                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 6| 5| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 3| 6| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 8| 5| 9| 8| 5| 3| 3| 1| 2| 3| 3| 3| 3|            |
                                           | 4| 2| 0| 1| 4| 0| 9| 4| 4| 0| 1| 0| 2| 9| 6| 4| 9| 4| 0| 7| 1| 4| 0| 1| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
      Hyperplasia, Lymphoid                |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst Epithelial Inclusion            |                               3                                          |      2  3.0|
      Ulcer                                |                                           4                              |      2  4.0|
      Epidermis, Hyperplasia               |                                                          3               |      2  2.5|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperostosis                         |                               2                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Skeletal Muscle                         |                                           +                              |   1        |
      Atrophy                              |                                           1                              |      1  1.0|
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Peripheral Nerve                        |                                           +                 +            |   2        |
      Atrophy                              |                                                             1            |      1  1.0|
                                           |__________________________________________________________________________|____________|
   Spinal Cord                             |                                           +                 +            |   2        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Infiltration Cellular, Histiocyte    |                                  4        2                          1   |      6  2.3|
      Metaplasia, Osseous                  |                         1                                                |      2  1.0|
      Alveolar Epithelium, Hyperplasia     |                                                                      2   |      6  1.7|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  73                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 6| 5| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 3| 6| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 8| 5| 9| 8| 5| 3| 3| 1| 2| 3| 3| 3| 3|            |
                                           | 4| 2| 0| 1| 4| 0| 9| 4| 4| 0| 1| 0| 2| 9| 6| 4| 9| 4| 0| 7| 1| 4| 0| 1| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic                |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atrophy                              |                                                                          |      1  4.0|
      Cataract                             |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                          |      1  3.0|
      Hyperplasia, Focal                   |                                  4                                       |      1  4.0|
                                           |__________________________________________________________________________|____________|
   Lacrimal Gland                          |                                                                          |   1        |
      Cyst                                 |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 | 3        3                                         3  3              3   |     13  3.0|
      Hydronephrosis                       |                                     2  3                                 |      2  2.5|
      Hyperplasia, Lymphoid                |       2     2  2                                      2                  |      5  2.0|
      Infarct                              |       2        2  2        2  3                                          |      7  2.3|
      Inflammation, Suppurative            |    3                                                                     |      1  3.0|
      Metaplasia, Osseous                  |                                        2        2                        |      3  2.3|
      Nephropathy                          | 2     1  1     2  2  3  1  2  1  1        1  2  1  1  1  3  2  1  1  1  2|     44  1.5|
      Renal Tubule, Dilatation             |    2                                2  3                                 |      3  2.3|
      Renal Tubule, Hyperplasia            |                                                                          |      1  1.0|
      Renal Tubule, Pigmentation           |                                        1                                 |      3  2.7|
                                           |__________________________________________________________________________|____________|
   Urethra                                 |    +                                +  +                                 |   3        |
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  74                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 6| 5| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7|            |
                             DAY ON TEST   | 3| 6| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 8| 5| 9| 8| 5| 3| 3| 1| 2| 3| 3| 3| 3|            |
                                           | 4| 2| 0| 1| 4| 0| 9| 4| 4| 0| 1| 0| 2| 9| 6| 4| 9| 4| 0| 7| 1| 4| 0| 1| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|      A     |
    50 MG/L                                | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 URINARY SYSTEM - cont                     |                                                                          |            |
      Angiectasis                          |    4                                4  4                                 |      3  4.0|
      Inflammation, Chronic Active         |    3                                2  3                                 |      3  2.7|
                                           |__________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hemorrhage                           |    2                                                                     |      1  2.0|
      Hyperplasia, Lymphoid                |                                                                          |      1  2.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  75                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 6| 7| 7| 7| 6| 5| 7| 7| 5| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 9| 2| 2| 3| 0| 2| 3| 3| 9| 3| 3| 3| 3| 6| 3| 2| 3| 3| 3| 3| 5| 3| 2| 2|             
                                           | 1| 1| 9| 9| 1| 4| 1| 0| 4| 6| 0| 1| 0| 4| 7| 0| 9| 1| 1| 0| 1| 3| 4| 9| 9|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    500 MG/L                               | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |__________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Gallbladder                             | +  +  +  +  +  +  A  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Rectum                 | +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Edema                                |       2                                                                  |             
      Hyperplasia, Lymphoid                |                                     3                                    |             
                                           |__________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |                                     2        2                           |             
                                           |__________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  A  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |                                                                          |             
      Basophilic Focus                     |                                              X                           |             
      Clear Cell Focus                     |             X        X        X  X  X        X  X  X     X        X  X   |             
      Eosinophilic Focus                   |       X  X                 X  X              X  X  X  X                 X|             
      Infarct                              |                                                                          |             
      Infiltration Cellular, Mixed Cell    |                                                                          |             
      Mixed Cell Focus                     |       X                                      X     X                 X   |             
      Necrosis, Focal                      |                      4                             1                     |             
      Tension Lipidosis                    |                            X                                             |             
      Bile Duct, Cyst                      |                                                                          |             
      Bile Duct, Cyst Multilocular         |                                                                          |             
      Hepatocyte, Vacuolization Cytoplasmic|                                                 3                 4      |             
      Kupffer Cell, Pigmentation           |                                                                3         |             
                                           |__________________________________________________________________________|             
   Mesentery                               |                   +           +                                         +|             
      Inflammation, Chronic                |                                                                          |             
      Fat, Necrosis                        |                               2                                         3|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  76                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 6| 7| 7| 7| 6| 5| 7| 7| 5| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 9| 2| 2| 3| 0| 2| 3| 3| 9| 3| 3| 3| 3| 6| 3| 2| 3| 3| 3| 3| 5| 3| 2| 2|             
                                           | 1| 1| 9| 9| 1| 4| 1| 0| 4| 6| 0| 1| 0| 4| 7| 0| 9| 1| 1| 0| 1| 3| 4| 9| 9|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    500 MG/L                               | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |__________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Acinus, Cytoplasmic Alteration       |                            3                                             |             
                                           |__________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |       2                          3                 3        3            |             
                                           |__________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Diverticulum                         |                                                                          |             
      Erosion                              |                            2                                             |             
      Inflammation, Chronic                |                                        3  3                              |             
      Ulcer                                |                                                                          |             
      Epithelium, Hyperplasia, Focal       |                                                                          |             
      Epithelium, Hyperplasia              |                            2           3  3                              |             
                                           |__________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Erosion                              |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Mineralization                       |                                           3                              |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Accessory Adrenal Cortical Nodule    | 3                                                                        |             
      Hyperplasia, Focal                   |                                     2  2           1                     |             
      Hypertrophy, Focal                   | 2  1        2           2     3        3     1                    3  2   |             
      Capsule, Hyperplasia                 |                                                                   2      |             
                                           |__________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |       3     2  2     3  3              2     2  2  3  3     2     2  2  3|             
                                           |__________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +|             
      Cyst                                 |                                                                          |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  77                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 6| 7| 7| 7| 6| 5| 7| 7| 5| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 9| 2| 2| 3| 0| 2| 3| 3| 9| 3| 3| 3| 3| 6| 3| 2| 3| 3| 3| 3| 5| 3| 2| 2|             
                                           | 1| 1| 9| 9| 1| 4| 1| 0| 4| 6| 0| 1| 0| 4| 7| 0| 9| 1| 1| 0| 1| 3| 4| 9| 9|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    500 MG/L                               | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
                                           |__________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +|             
      Pars Distalis, Cyst                  |    3     3                                   3     3     3  3            |             
      Pars Distalis, Hyperplasia, Focal    |                                                                          |             
                                           |__________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration, Cystic                 |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Coagulating Gland                       |                                                                          |             
                                           |__________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atypia Cellular                      |          2                 2                                             |             
      Granuloma Sperm                      |          4                 3                                             |             
                                           |__________________________________________________________________________|             
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 | 3  3  3  3  3  3     3        3        3  3  3  3  3     3     3         |             
      Inflammation, Chronic                | 3  3  3  2  2  2        2              3     2           2  2  2         |             
                                           |__________________________________________________________________________|             
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration                         |                                                                          |             
                                           |__________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Germinal Epithelium, Atrophy         |                            1        2  1                       2         |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          | 3  3  2        2  3     3              4  4  3     1  3  2  2  3        2|             
                                           |__________________________________________________________________________|             
   Lymph Node                              |          +                                +                    +         |             
      Bronchial, Hyperplasia, Lymphoid     |          3                                                               |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  78                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 6| 7| 7| 7| 6| 5| 7| 7| 5| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 9| 2| 2| 3| 0| 2| 3| 3| 9| 3| 3| 3| 3| 6| 3| 2| 3| 3| 3| 3| 5| 3| 2| 2|             
                                           | 1| 1| 9| 9| 1| 4| 1| 0| 4| 6| 0| 1| 0| 4| 7| 0| 9| 1| 1| 0| 1| 3| 4| 9| 9|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    500 MG/L                               | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
      Inguinal, Hyperplasia, Lymphoid      |                                                                3         |             
      Mediastinal, Hyperplasia, Lymphoid   |                                                                          |             
      Pancreatic, Hyperplasia, Lymphoid    |                                                                          |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                            2                                             |             
      Hemorrhage                           |                                                                          |             
      Hyperplasia, Lymphoid                |       3                                            3                 2   |             
      Pigmentation                         |          2                                                               |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                                                                          |             
      Hematopoietic Cell Proliferation     |       1                 2              2                                 |             
      Hemorrhage                           |                   1     2  1     1  1  3                                 |             
      Hyperplasia, Lymphoid                |                                  2                                      2|             
      Hyperplasia, Plasma Cell             |                                              3                           |             
                                           |__________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hematopoietic Cell Proliferation     |    3        2  2  3     1     1  2     4  4  2     3  2  2  3  3         |             
      Pigmentation                         |    3                                                                     |             
      Lymphoid Follicle, Atrophy           |                            3                                             |             
      Lymphoid Follicle, Hyperplasia       |          4                    2  3           2                 2         |             
                                           |__________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +|             
      Atrophy                              |                            3           3  3  2        3     2            |             
      Hyperplasia, Lymphoid                |                                                          3               |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  79                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 6| 7| 7| 7| 6| 5| 7| 7| 5| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 9| 2| 2| 3| 0| 2| 3| 3| 9| 3| 3| 3| 3| 6| 3| 2| 3| 3| 3| 3| 5| 3| 2| 2|             
                                           | 1| 1| 9| 9| 1| 4| 1| 0| 4| 6| 0| 1| 0| 4| 7| 0| 9| 1| 1| 0| 1| 3| 4| 9| 9|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    500 MG/L                               | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 NERVOUS SYSTEM - cont                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Peripheral Nerve                        |                            +                                             |             
      Atrophy                              |                            3                                             |             
                                           |__________________________________________________________________________|             
   Spinal Cord                             |                            +                                             |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |__________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Edema                                |                                                                          |             
      Hyperplasia, Lymphoid                |                                                                          |             
      Infiltration Cellular, Histiocyte    |                      1                             4                     |             
      Alveolar Epithelium, Hyperplasia     |          3  4        2           2                                       |             
                                           |__________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Foreign Body                         |                            X                                             |             
      Inflammation, Chronic                |             1              2                                             |             
                                           |__________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cataract                             |          1                                                               |             
      Inflammation, Chronic                |                                                    2                 1   |             
      Cornea, Hyperplasia                  |                                                    2                     |             
                                           |__________________________________________________________________________|             
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Focal                   |             3                                                            |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |          3  3        3     3           3                    3            |             
      Hyperplasia, Lymphoid                |    2                    3                          2        3            |             
      Infarct                              |                                                                   2      |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  80                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 6| 7| 7| 7| 6| 5| 7| 7| 5| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 3| 9| 2| 2| 3| 0| 2| 3| 3| 9| 3| 3| 3| 3| 6| 3| 2| 3| 3| 3| 3| 5| 3| 2| 2|             
                                           | 1| 1| 9| 9| 1| 4| 1| 0| 4| 6| 0| 1| 0| 4| 7| 0| 9| 1| 1| 0| 1| 3| 4| 9| 9|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    500 MG/L                               | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 URINARY SYSTEM - cont                     |                                                                          |             
      Metaplasia, Osseous                  |                                     1                                    |             
      Nephropathy                          |       2     2  2     2  3  1  2  3  2  2     1  1  1     3  3  1  1  1  2|             
      Renal Tubule, Accumulation, Hyaline  |                                                                          |             
          Droplet                          |                                           3                              |             
      Renal Tubule, Hyperplasia            |                                                                          |             
      Renal Tubule, Pigmentation           |                                                       2                  |             
      Transitional Epithelium, Hyperplasia |                         2                                                |             
                                           |__________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Edema                                |                   3                                                      |             
      Hyperplasia, Lymphoid                |                                  3                                       |             
      Transitional Epithelium, Hyperplasia |                                                                          |             
 __________________________________________|__________________________________________________________________________              
                                                             Page  81                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 6| 7| 7| 5| 7| 7| 7| 7| 7| 7| 6| 7| 5| 6| 7| 6| 7| 7| 4| 7| 7| 7| 7|            |
                             DAY ON TEST   | 2| 3| 5| 3| 2| 7| 3| 3| 3| 1| 3| 3| 9| 3| 7| 2| 0| 2| 3| 3| 3| 2| 3| 3| 3|            |
                                           | 9| 0| 4| 1| 9| 6| 1| 4| 4| 4| 4| 4| 9| 1| 3| 5| 8| 6| 1| 1| 1| 9| 4| 0| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|      A     |
    500 MG/L                               | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Gallbladder                             | +  +  +  +  +  M  +  +  +  M  +  +  +  +  M  +  A  +  +  +  +  +  +  +  +|  44        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Edema                                |                         2                                2               |      3  2.0|
      Hyperplasia, Lymphoid                |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  A  A  +  +  +  +  +  +  +  +|  46        |
                                           |__________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  A  +  +  A  +  +  +  A  +  +  +  +  +  +  +  +|  46        |
      Hyperplasia, Lymphoid                |                                                                          |      2  2.0|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
                                           |__________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Angiectasis                          |                                     3                                    |      1  3.0|
      Basophilic Focus                     |                                                                          |      1     |
      Clear Cell Focus                     | X        X  X        X  X     X  X  X                    X        X  X  X|     23     |
      Eosinophilic Focus                   |    X     X              X           X  X                 X               |     15     |
      Infarct                              |                                                    4                     |      1  4.0|
      Infiltration Cellular, Mixed Cell    |                3                                               2         |      2  2.5|
      Mixed Cell Focus                     |             X     X           X                                         X|      8     |
      Necrosis, Focal                      |                   1                                                      |      3  2.0|
      Tension Lipidosis                    |                                                                          |      1     |
      Bile Duct, Cyst                      |                                                                      1   |      1  1.0|
      Bile Duct, Cyst Multilocular         |                                                                      X   |      1     |
      Hepatocyte, Vacuolization Cytoplasmic|             3                                                        3   |      4  3.3|
      Kupffer Cell, Pigmentation           |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  82                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 6| 7| 7| 5| 7| 7| 7| 7| 7| 7| 6| 7| 5| 6| 7| 6| 7| 7| 4| 7| 7| 7| 7|            |
                             DAY ON TEST   | 2| 3| 5| 3| 2| 7| 3| 3| 3| 1| 3| 3| 9| 3| 7| 2| 0| 2| 3| 3| 3| 2| 3| 3| 3|            |
                                           | 9| 0| 4| 1| 9| 6| 1| 4| 4| 4| 4| 4| 9| 1| 3| 5| 8| 6| 1| 1| 1| 9| 4| 0| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|      A     |
    500 MG/L                               | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mesentery                               | +              +        +     +                          +     +        +|  10        |
      Inflammation, Chronic                |                         3                                                |      1  3.0|
      Fat, Necrosis                        | 2                       4     3                          4     4         |      7  3.1|
                                           |__________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Acinus, Cytoplasmic Alteration       |                3                                                         |      2  3.0|
                                           |__________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Lymphoid                |                      2                                                  2|      6  2.5|
                                           |__________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Diverticulum                         |                X                                                         |      1     |
      Erosion                              |                                                                          |      1  2.0|
      Inflammation, Chronic                |                            1                                             |      3  2.3|
      Ulcer                                |                                                 3           2            |      2  2.5|
      Epithelium, Hyperplasia, Focal       |                                              3                           |      1  3.0|
      Epithelium, Hyperplasia              |                                                             3            |      4  2.8|
                                           |__________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Erosion                              |                                                 3                        |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Mineralization                       |                                                             1            |      2  2.0|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Accessory Adrenal Cortical Nodule    |             3                    3                                   3   |      4  3.0|
      Hyperplasia, Focal                   |                                                          2        2      |      5  1.8|
      Hypertrophy, Focal                   | 1                                2                    1              1   |     13  1.8|
      Capsule, Hyperplasia                 |                                                                          |      1  2.0|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  83                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 6| 7| 7| 5| 7| 7| 7| 7| 7| 7| 6| 7| 5| 6| 7| 6| 7| 7| 4| 7| 7| 7| 7|            |
                             DAY ON TEST   | 2| 3| 5| 3| 2| 7| 3| 3| 3| 1| 3| 3| 9| 3| 7| 2| 0| 2| 3| 3| 3| 2| 3| 3| 3|            |
                                           | 9| 0| 4| 1| 9| 6| 1| 4| 4| 4| 4| 4| 9| 1| 3| 5| 8| 6| 1| 1| 1| 9| 4| 0| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|      A     |
    500 MG/L                               | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |    2     2  2     2     3  3     2  2  2              2        3        2|     26  2.3|
                                           |__________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Cyst                                 |                                        3              3        3         |      3  3.0|
                                           |__________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Pars Distalis, Cyst                  |                                                       3                  |      7  3.0|
      Pars Distalis, Hyperplasia, Focal    |                                                       1                  |      1  1.0|
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration, Cystic                 |                            2        1                                   2|      3  1.7|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Coagulating Gland                       |                                     +                                    |   1        |
                                           |__________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atypia Cellular                      |                                                                          |      2  2.0|
      Granuloma Sperm                      |                                                                          |      2  3.5|
                                           |__________________________________________________________________________|____________|
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 | 3  3  3  3     3     3     3  3     3  3  3  3  3  3  3     3  3        3|     33  3.0|
      Inflammation, Chronic                |    3  2     2  2  2     2     2        2  3        3  3        1         |     24  2.3|
                                           |__________________________________________________________________________|____________|
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  84                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 6| 7| 7| 5| 7| 7| 7| 7| 7| 7| 6| 7| 5| 6| 7| 6| 7| 7| 4| 7| 7| 7| 7|            |
                             DAY ON TEST   | 2| 3| 5| 3| 2| 7| 3| 3| 3| 1| 3| 3| 9| 3| 7| 2| 0| 2| 3| 3| 3| 2| 3| 3| 3|            |
                                           | 9| 0| 4| 1| 9| 6| 1| 4| 4| 4| 4| 4| 9| 1| 3| 5| 8| 6| 1| 1| 1| 9| 4| 0| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|      A     |
    500 MG/L                               | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 GENITAL SYSTEM - cont                     |                                                                          |            |
      Degeneration                         |                                                       3                  |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Germinal Epithelium, Atrophy         |                                                                          |      4  1.5|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |    2  2        3           4        3  3  3  3  3  4     2  2  2         |     28  2.7|
                                           |__________________________________________________________________________|____________|
   Lymph Node                              |                                              +                          +|   5        |
      Bronchial, Hyperplasia, Lymphoid     |                                                                          |      1  3.0|
      Inguinal, Hyperplasia, Lymphoid      |                                                                          |      1  3.0|
      Mediastinal, Hyperplasia, Lymphoid   |                                                                         3|      1  3.0|
      Pancreatic, Hyperplasia, Lymphoid    |                                                                         3|      1  3.0|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Atrophy                              |       2                                   2                              |      3  2.0|
      Hemorrhage                           |                                                                         2|      1  2.0|
      Hyperplasia, Lymphoid                |                      2     3     2                                       |      6  2.5|
      Pigmentation                         |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Atrophy                              |                            2                                             |      1  2.0|
      Hematopoietic Cell Proliferation     |                                                                          |      3  1.7|
      Hemorrhage                           |    1                       2                    3                        |      9  1.7|
      Hyperplasia, Lymphoid                |                                                                         4|      3  2.7|
      Hyperplasia, Plasma Cell             |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hematopoietic Cell Proliferation     |       3        4           3        3  3  4  3  4  4     3  3  3        2|     28  2.8|
      Pigmentation                         |                                                                          |      1  3.0|
      Lymphoid Follicle, Atrophy           |       2                    3                                             |      3  2.7|
      Lymphoid Follicle, Hyperplasia       |                                                                         3|      6  2.7|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  85                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 6| 7| 7| 5| 7| 7| 7| 7| 7| 7| 6| 7| 5| 6| 7| 6| 7| 7| 4| 7| 7| 7| 7|            |
                             DAY ON TEST   | 2| 3| 5| 3| 2| 7| 3| 3| 3| 1| 3| 3| 9| 3| 7| 2| 0| 2| 3| 3| 3| 2| 3| 3| 3|            |
                                           | 9| 0| 4| 1| 9| 6| 1| 4| 4| 4| 4| 4| 9| 1| 3| 5| 8| 6| 1| 1| 1| 9| 4| 0| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|      A     |
    500 MG/L                               | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  M  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  M  +|  46        |
      Atrophy                              |       3                    3        3     3     3  3                     |     12  2.8|
      Hyperplasia, Lymphoid                |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Peripheral Nerve                        |                                                                          |   1        |
      Atrophy                              |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Spinal Cord                             |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Edema                                |                                                 3                        |      1  3.0|
      Hyperplasia, Lymphoid                |                                                                2         |      1  2.0|
      Infiltration Cellular, Histiocyte    |                2                                                         |      3  2.3|
      Alveolar Epithelium, Hyperplasia     |          1                                2                              |      6  2.3|
                                           |__________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Foreign Body                         |                                                                          |      1     |
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  86                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 6| 7| 7| 5| 7| 7| 7| 7| 7| 7| 6| 7| 5| 6| 7| 6| 7| 7| 4| 7| 7| 7| 7|            |
                             DAY ON TEST   | 2| 3| 5| 3| 2| 7| 3| 3| 3| 1| 3| 3| 9| 3| 7| 2| 0| 2| 3| 3| 3| 2| 3| 3| 3|            |
                                           | 9| 0| 4| 1| 9| 6| 1| 4| 4| 4| 4| 4| 9| 1| 3| 5| 8| 6| 1| 1| 1| 9| 4| 0| 0|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|      A     |
    500 MG/L                               | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
      Inflammation, Chronic                |                                     3                                    |      3  2.0|
                                           |__________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cataract                             |                                                                          |      1  1.0|
      Inflammation, Chronic                |                                                                          |      2  1.5|
      Cornea, Hyperplasia                  |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Focal                   |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |             3           3        3     3  3              3           3  3|     14  3.0|
      Hyperplasia, Lymphoid                |                            2                                            2|      6  2.3|
      Infarct                              |             1                                         2                 3|      4  2.0|
      Metaplasia, Osseous                  |                               3                                          |      2  2.0|
      Nephropathy                          | 1  2  2  1  1  3  2  1  1  1  2  2     1  3     2  2  2  2  1  1  2  2  1|     42  1.7|
      Renal Tubule, Accumulation, Hyaline  |                                                                          |            |
          Droplet                          |                                                                          |      1  3.0|
      Renal Tubule, Hyperplasia            |                                        1                                 |      1  1.0|
      Renal Tubule, Pigmentation           |                                           3                              |      2  2.5|
      Transitional Epithelium, Hyperplasia |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Edema                                |                                                                          |      1  3.0|
      Hyperplasia, Lymphoid                |                                                                          |      1  3.0|
      Transitional Epithelium, Hyperplasia |                                                             1            |      1  1.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  87                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 6| 5| 7| 7| 6| 7| 6| 4| 7| 7| 5| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 8| 9| 9| 2| 3| 2| 3| 8| 7| 2| 3| 5| 2| 9| 0| 3| 3| 3| 3| 3| 3| 3|             
                                           | 4| 1| 1| 9| 2| 7| 9| 4| 3| 0| 9| 6| 9| 1| 8| 9| 4| 2| 7| 1| 4| 1| 1| 0| 0|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    1000                                   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
    MG/L                                   | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |__________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Gallbladder                             | +  +  +  A  +  +  +  +  +  +  A  +  +  +  +  +  A  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M|             
                                           |__________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  A  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +|             
      Edema                                |                            2                                             |             
                                           |__________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  A  +  +  +  A  +  +  +  A  +  +  +  +  +  +|             
      Hyperplasia, Lymphoid                |                                                 4              2         |             
                                           |__________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Basophilic Focus                     |                                                                          |             
      Clear Cell Focus                     |       X           X              X  X  X           X           X  X  X   |             
      Cyst                                 |                                                       3                  |             
      Eosinophilic Focus                   |       X                    X     X  X  X     X     X     X               |             
      Hematopoietic Cell Proliferation     |                                                                          |             
      Infiltration Cellular, Mixed Cell    |                                                                          |             
      Mixed Cell Focus                     |                               X                          X               |             
      Necrosis, Focal                      |                         3                             2                  |             
      Tension Lipidosis                    |                                                                          |             
      Centrilobular, Necrosis              |                2                                4                        |             
      Hepatocyte, Vacuolization Cytoplasmic|    3     4        3     3           3  3                          3      |             
      Kupffer Cell, Pigmentation           |                                                                          |             
                                           |__________________________________________________________________________|             
   Mesentery                               |       +     +                                                            |             
      Fat, Necrosis                        |                                                                          |             
                                           |__________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  88                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 6| 5| 7| 7| 6| 7| 6| 4| 7| 7| 5| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 8| 9| 9| 2| 3| 2| 3| 8| 7| 2| 3| 5| 2| 9| 0| 3| 3| 3| 3| 3| 3| 3|             
                                           | 4| 1| 1| 9| 2| 7| 9| 4| 3| 0| 9| 6| 9| 1| 8| 9| 4| 2| 7| 1| 4| 1| 1| 0| 0|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    1000                                   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
    MG/L                                   | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                            2                                2            |             
      Hyperplasia, Lymphoid                |                                                             2            |             
                                           |__________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Erosion                              |                         1        2                                       |             
      Inflammation, Chronic                |    2           3                             3           2              3|             
      Ulcer                                |             1                             3                              |             
      Epithelium, Hyperplasia, Focal       |                                                       3                  |             
      Epithelium, Hyperplasia              |    3        2  3        1                                2              3|             
                                           |__________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Mineralization                       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Accessory Adrenal Cortical Nodule    |    3  3                 3                                                |             
      Hyperplasia, Focal                   |                                                                          |             
      Hypertrophy, Focal                   |    1                 2     2                                             |             
      Hypertrophy                          |                                                                      2   |             
      Capsule, Hyperplasia                 |       2           3        3                                             |             
                                           |__________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                                                                          |             
                                           |__________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                                                          4               |             
      Hyperplasia                          |          2        2        3                 3  1     2        1         |             
                                           |__________________________________________________________________________|             
   Parathyroid Gland                       | +  M  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +|             
      Cyst                                 |             3                          3                                 |             
                                           |__________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  M  +  +  +  +  +  +|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  89                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 6| 5| 7| 7| 6| 7| 6| 4| 7| 7| 5| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 8| 9| 9| 2| 3| 2| 3| 8| 7| 2| 3| 5| 2| 9| 0| 3| 3| 3| 3| 3| 3| 3|             
                                           | 4| 1| 1| 9| 2| 7| 9| 4| 3| 0| 9| 6| 9| 1| 8| 9| 4| 2| 7| 1| 4| 1| 1| 0| 0|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    1000                                   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
    MG/L                                   | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
      Pars Distalis, Cyst                  |       3                                                           3      |             
                                           |__________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration, Cystic                 |                               1              2                           |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atypia Cellular                      |                                                    2     4           2  2|             
      Granuloma Sperm                      |                   2                                                      |             
      Spermatocele                         |                                                                   3      |             
                                           |__________________________________________________________________________|             
   Penis                                   |                                                          +               |             
                                           |__________________________________________________________________________|             
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 | 3  3  3     3     3        3  3     3     3  3     3           3  3  3  3|             
      Inflammation, Chronic                | 2     2  2           2              3  2  3     2  2  2        2     2  2|             
                                           |__________________________________________________________________________|             
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic                |                         3                                                |             
                                           |__________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Germinal Epithelium, Atrophy         |    2                 2                    2        2     3              1|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |                                                                2         |             
      Hyperplasia                          |    3     2  3  3     3        2     2  2  3     2  2  3  2  2        2  2|             
                                           |__________________________________________________________________________|             
   Lymph Node                              |                                                                          |             
      Mediastinal, Pigmentation            |                                                                          |             
                                           |__________________________________________________________________________|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  90                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 6| 5| 7| 7| 6| 7| 6| 4| 7| 7| 5| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 8| 9| 9| 2| 3| 2| 3| 8| 7| 2| 3| 5| 2| 9| 0| 3| 3| 3| 3| 3| 3| 3|             
                                           | 4| 1| 1| 9| 2| 7| 9| 4| 3| 0| 9| 6| 9| 1| 8| 9| 4| 2| 7| 1| 4| 1| 1| 0| 0|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    1000                                   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
    MG/L                                   | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |             2           2                 3     2     2  2               |             
      Hyperplasia, Lymphoid                |                2     2                                                  2|             
      Pigmentation                         |             2  2        2                       3        2  2            |             
                                           |__________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  M  +  +  +  +  +  +|             
      Atrophy                              |                      2                             2                    2|             
      Hematopoietic Cell Proliferation     |    2                 2                                                  2|             
      Hemorrhage                           |    2           2     2                                               2   |             
      Hyperplasia, Lymphoid                |                                                 2           3            |             
                                           |__________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |       2                                                                  |             
      Hematopoietic Cell Proliferation     |    3     3     4  3  4  3     2  2     1     2  4  3  4  4  2  3     4  3|             
      Pigmentation                         |                                                                          |             
      Lymphoid Follicle, Atrophy           |             3  3        2                 3              3               |             
      Lymphoid Follicle, Hyperplasia       |                                     2  2                                 |             
                                           |__________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +  M  +  +  M  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              | 3           3  3        3                    2  4  4  3  3              3|             
      Hyperplasia, Lymphoid                |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |__________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Ulcer                                |                                              4                           |             
      Epidermis, Hyperplasia               |                                              4                           |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |__________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cranium, Hyperostosis                |                                              3                           |             
                                           |__________________________________________________________________________|             
   Skeletal Muscle                         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  91                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 6| 5| 7| 7| 6| 7| 6| 4| 7| 7| 5| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 8| 9| 9| 2| 3| 2| 3| 8| 7| 2| 3| 5| 2| 9| 0| 3| 3| 3| 3| 3| 3| 3|             
                                           | 4| 1| 1| 9| 2| 7| 9| 4| 3| 0| 9| 6| 9| 1| 8| 9| 4| 2| 7| 1| 4| 1| 1| 0| 0|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    1000                                   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
    MG/L                                   | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 NERVOUS SYSTEM - cont                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |__________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Edema                                |          2                                                               |             
      Hemorrhage                           |                         1              1                                 |             
      Infiltration Cellular, Histiocyte    |                                           3                             4|             
      Metaplasia, Osseous                  |                   1                                                      |             
      Alveolar Epithelium, Hyperplasia     |                      3        2                       2  1              2|             
      Bronchiole, Hyperplasia              |       1                                                                  |             
                                           |__________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                           |__________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |__________________________________________________________________________|             
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cataract                             |                   1                                      1               |             
      Inflammation, Chronic                |                                                                      2   |             
      Bilateral, Cataract                  |                                                                      3   |             
      Cornea, Hyperplasia                  |                                                                      2   |             
                                           |__________________________________________________________________________|             
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Focal                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |__________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                 3  3     3           3   |             
      Hydronephrosis                       |                         3                                               2|             
      Hyperplasia, Lymphoid                |                                                                2        3|             
      Infarct                              |       3                                                                  |             
      Inflammation, Suppurative            |                         4                                                |             
      Metaplasia, Osseous                  |                                                    3                    3|             
      Nephropathy                          | 1  3  1     3  3  3  2     1     1  1  1  3  3     3        1  1  1  1  4|             
 __________________________________________|__________________________________________________________________________|             
                                                             Page  92                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 4| 6| 5| 7| 7| 6| 7| 6| 4| 7| 7| 5| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7|             
                             DAY ON TEST   | 3| 3| 3| 8| 9| 9| 2| 3| 2| 3| 8| 7| 2| 3| 5| 2| 9| 0| 3| 3| 3| 3| 3| 3| 3|             
                                           | 4| 1| 1| 9| 2| 7| 9| 4| 3| 0| 9| 6| 9| 1| 8| 9| 4| 2| 7| 1| 4| 1| 1| 0| 0|             
 __________________________________________|__________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    1000                                   | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
    MG/L                                   | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 __________________________________________|__________________________________________________________________________|             
 URINARY SYSTEM - cont                     |                                                                          |             
      Papilla, Necrosis                    |                         3                                                |             
      Renal Tubule, Dilatation             |                         3                                                |             
      Renal Tubule, Hyperplasia            |                            1                                         2   |             
      Renal Tubule, Pigmentation           |                         3                       4        4           2   |             
                                           |__________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic                |                                                          2               |             
      Transitional Epithelium, Hyperplasia |                                                          3               |             
 __________________________________________|__________________________________________________________________________              
                                                             Page  93                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 4| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| 6| 7| 7|            |
                             DAY ON TEST   | 3| 5| 6| 9| 0| 3| 3| 3| 3| 3| 3| 2| 3| 6| 3| 2| 0| 3| 5| 3| 5| 3| 2| 3| 2|            |
                                           | 4| 9| 9| 1| 7| 1| 1| 0| 1| 1| 4| 9| 0| 3| 0| 9| 6| 1| 2| 1| 9| 1| 7| 1| 9|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Gallbladder                             | +  +  +  A  A  +  +  +  +  +  +  +  +  +  +  +  +  +  A  M  +  M  +  +  +|  42        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  A  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  A  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
      Edema                                |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                           |__________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  A  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  45        |
      Hyperplasia, Lymphoid                |                                                                          |      2  3.0|
                                           |__________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  A  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
                                           |__________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Basophilic Focus                     |          X                                      X                        |      2     |
      Clear Cell Focus                     | X                             X           X              X               |     13     |
      Cyst                                 |                                                                          |      1  3.0|
      Eosinophilic Focus                   | X           X  X              X     X           X  X     X        X      |     17     |
      Hematopoietic Cell Proliferation     |                                                                      2   |      1  2.0|
      Infiltration Cellular, Mixed Cell    |                            2                                2            |      2  2.0|
      Mixed Cell Focus                     |                                                                X  X      |      4     |
      Necrosis, Focal                      |    2                                                  4     2            |      5  2.6|
      Tension Lipidosis                    |                   X                                X                     |      2     |
      Centrilobular, Necrosis              |          3  1                                                        4   |      5  2.8|
      Hepatocyte, Vacuolization Cytoplasmic|                         2           3                    3               |     10  3.0|
      Kupffer Cell, Pigmentation           |                                                                   2      |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Mesentery                               | +  +                 +        +        +                                 |   7        |
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  94                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 4| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| 6| 7| 7|            |
                             DAY ON TEST   | 3| 5| 6| 9| 0| 3| 3| 3| 3| 3| 3| 2| 3| 6| 3| 2| 0| 3| 5| 3| 5| 3| 2| 3| 2|            |
                                           | 4| 9| 9| 1| 7| 1| 1| 0| 1| 1| 4| 9| 0| 3| 0| 9| 6| 1| 2| 1| 9| 1| 7| 1| 9|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
      Fat, Necrosis                        | 2  3                          3        3                                 |      4  2.8|
                                           |__________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                           |__________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atrophy                              |                                                                          |      2  2.0|
      Hyperplasia, Lymphoid                |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Erosion                              |                                                                          |      2  1.5|
      Inflammation, Chronic                |                                                 2                        |      6  2.5|
      Ulcer                                |                                                                          |      2  2.0|
      Epithelium, Hyperplasia, Focal       |                                                                          |      1  3.0|
      Epithelium, Hyperplasia              |                                                 3                        |      7  2.4|
                                           |__________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Mineralization                       |                                                       2                  |      1  2.0|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Accessory Adrenal Cortical Nodule    |                               3           3                          3   |      6  3.0|
      Hyperplasia, Focal                   |                                                          2               |      1  2.0|
      Hypertrophy, Focal                   |                         1     2                    2                     |      6  1.7|
      Hypertrophy                          |                                                                          |      1  2.0|
      Capsule, Hyperplasia                 |                   2                                2                     |      5  2.4|
                                           |__________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |                                                                1         |      1  1.0|
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  95                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 4| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| 6| 7| 7|            |
                             DAY ON TEST   | 3| 5| 6| 9| 0| 3| 3| 3| 3| 3| 3| 2| 3| 6| 3| 2| 0| 3| 5| 3| 5| 3| 2| 3| 2|            |
                                           | 4| 9| 9| 1| 7| 1| 1| 0| 1| 1| 4| 9| 0| 3| 0| 9| 6| 1| 2| 1| 9| 1| 7| 1| 9|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Atrophy                              |                                                                          |      1  4.0|
      Hyperplasia                          | 2                                   2           1     2  1     2         |     13  1.8|
                                           |__________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Cyst                                 |                               3        3                                 |      4  3.0|
                                           |__________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Pars Distalis, Cyst                  |    3                                                                 3  3|      5  3.0|
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration, Cystic                 |    2                          2           2                             2|      6  1.8|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atypia Cellular                      |                            2           2                                 |      6  2.3|
      Granuloma Sperm                      |                            3                                             |      2  2.5|
      Spermatocele                         |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Penis                                   |                                                                          |   1        |
                                           |__________________________________________________________________________|____________|
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 | 3  3        3  3  3     3  3     3  3     3  3  3  3  3  3     3  3     3|     33  3.0|
      Inflammation, Chronic                |          2  2  2  2  2     3     2     2  3  3  2  2  2        2        2|     28  2.2|
                                           |__________________________________________________________________________|____________|
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Inflammation, Chronic                |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  96                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 4| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| 6| 7| 7|            |
                             DAY ON TEST   | 3| 5| 6| 9| 0| 3| 3| 3| 3| 3| 3| 2| 3| 6| 3| 2| 0| 3| 5| 3| 5| 3| 2| 3| 2|            |
                                           | 4| 9| 9| 1| 7| 1| 1| 0| 1| 1| 4| 9| 0| 3| 0| 9| 6| 1| 2| 1| 9| 1| 7| 1| 9|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 GENITAL SYSTEM - cont                     |                                                                          |            |
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Germinal Epithelium, Atrophy         |             2                          1                                 |      8  1.9|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Angiectasis                          |                                                                          |      1  2.0|
      Hyperplasia                          |    4  3  3        2  3           2  2  4  2  3  3  2     2  4  3     4   |     32  2.6|
                                           |__________________________________________________________________________|____________|
   Lymph Node                              |                                                                   +      |   1        |
      Mediastinal, Pigmentation            |                                                                   3      |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|  48        |
      Atrophy                              |             2                                                            |      7  2.1|
      Hyperplasia, Lymphoid                | 2  3                             2                       3               |      7  2.3|
      Pigmentation                         |             2                                                            |      7  2.1|
                                           |__________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Atrophy                              |             2              2                          2  3  3     3      |      9  2.3|
      Hematopoietic Cell Proliferation     |                                                                          |      3  2.0|
      Hemorrhage                           |             2                          2              2                  |      7  2.0|
      Hyperplasia, Lymphoid                |                   3           2  2                 3                     |      6  2.5|
                                           |__________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Angiectasis                          |                                                                          |      1  2.0|
      Hematopoietic Cell Proliferation     | 1  4  4  4     1  1  3     1     1  3  4  3  3  3     3  2  4  4  3  4   |     38  2.9|
      Pigmentation                         |                                                       2                  |      1  2.0|
      Lymphoid Follicle, Atrophy           |             3              2                          3                  |      8  2.8|
      Lymphoid Follicle, Hyperplasia       |                   2              2                 4     2               |      6  2.3|
                                           |__________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  I  +  +|  47        |
      Atrophy                              |          3  3  2     2     3           3     4  3     3  2  3        3   |     22  3.0|
      Hyperplasia, Lymphoid                |                               4                                          |      1  4.0|
 _____________________________________________________________________________________________________________________|            |
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  97                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 4| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| 6| 7| 7|            |
                             DAY ON TEST   | 3| 5| 6| 9| 0| 3| 3| 3| 3| 3| 3| 2| 3| 6| 3| 2| 0| 3| 5| 3| 5| 3| 2| 3| 2|            |
                                           | 4| 9| 9| 1| 7| 1| 1| 0| 1| 1| 4| 9| 0| 3| 0| 9| 6| 1| 2| 1| 9| 1| 7| 1| 9|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Ulcer                                |    4                                                        4            |      3  4.0|
      Epidermis, Hyperplasia               |    3                                                        3            |      3  3.3|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cranium, Hyperostosis                |                                                                          |      1  3.0|
                                           |__________________________________________________________________________|____________|
   Skeletal Muscle                         |                                                 +                        |   1        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Edema                                |             2                                                            |      2  2.0|
      Hemorrhage                           |    1        3                                                            |      4  1.5|
      Infiltration Cellular, Histiocyte    | 2           3  4                                                     3   |      6  3.2|
      Metaplasia, Osseous                  |                                                                          |      1  1.0|
      Alveolar Epithelium, Hyperplasia     | 1                                                                    2   |      7  1.9|
      Bronchiole, Hyperplasia              |                                                                          |      1  1.0|
                                           |__________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                           |__________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  98                                                               
NTP Experiment-Test: 96017-06                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09  
Study Type: CHRONIC                         WATER DISINFECTION BYPRODUCTS (DIBROMOACETIC ACID)                    Date: 05/19/04    
Route: DOSED WATER                                                                                                Time: 09:28:00    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 6| 4| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| 6| 7| 7|            |
                             DAY ON TEST   | 3| 5| 6| 9| 0| 3| 3| 3| 3| 3| 3| 2| 3| 6| 3| 2| 0| 3| 5| 3| 5| 3| 2| 3| 2|            |
                                           | 4| 9| 9| 1| 7| 1| 1| 0| 1| 1| 4| 9| 0| 3| 0| 9| 6| 1| 2| 1| 9| 1| 7| 1| 9|            |
 __________________________________________|__________________________________________________________________________|      T (*) |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   B6C3F1 MICE MALE                        | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2|      A     |
    1000                                   | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
    MG/L                                   | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 _____________________________________________________________________________________________________________________|____________|
 SPECIAL SENSES SYSTEM - cont              |                                                                          |            |
   Eye                                     | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cataract                             |                            1                                   3        1|      5  1.4|
      Inflammation, Chronic                |                                                          2               |      2  2.0|
      Bilateral, Cataract                  |                                                                          |      1  3.0|
      Cornea, Hyperplasia                  |                                                                          |      1  2.0|
                                           |__________________________________________________________________________|____________|
   Harderian Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Focal                   |                                           3                              |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |    3     3  3  3  3  3                             3                     |     11  3.0|
      Hydronephrosis                       |                                              3  2                        |      4  2.5|
      Hyperplasia, Lymphoid                |             3                                2                       2   |      5  2.4|
      Infarct                              | 2        1                       1              2                        |      5  1.8|
      Inflammation, Suppurative            |                                                                          |      1  4.0|
      Metaplasia, Osseous                  |                                                                          |      2  3.0|
      Nephropathy                          | 2           3  1  1  1  1  3  1     1  2  1  4  2  1     2  3  2  2  1  1|     39  1.8|
      Papilla, Necrosis                    |                                                                          |      1  3.0|
      Renal Tubule, Dilatation             |                                                                          |      1  3.0|
      Renal Tubule, Hyperplasia            |                   2                                                      |      3  1.7|
      Renal Tubule, Pigmentation           |       2  2                                                     4         |      7  3.0|
                                           |__________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Inflammation, Chronic                |                                                                          |      1  2.0|
      Transitional Epithelium, Hyperplasia |                                                                          |      1  3.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
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