Dibromoacetic acid
Bear Mountain Water Supply
Dibromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 5 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.03 ppb
The EWG Health Guideline of 0.03 ppb for dibromoacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-05 | THAAS 02061811:4 | ND |
| 2018-05-07 | HAA5 05071819-2 | ND |
| 2018-07-25 | HAA5 08091821-6 | ND |
| 2018-11-13 | HAA5 11151803: 2 | ND |
| 2019-02-05 | HAA5 02061903A:2 | ND |
| 2019-02-05 | HAA5S 02061903A:1 | ND |
| 2019-05-07 | HAA5S 05091905 | ND |
| 2019-08-07 | HAA5 08141907 | ND |
| 2019-11-04 | HAA5S QB192748 | ND |
| 2020-02-04 | DBP 02062004:2 | ND |
| 2020-05-13 | DBP9 05132006:2 | ND |
| 2020-08-13 | HAA5 08132013:2 | ND |
| 2020-11-04 | DBP 11042008-2 | ND |
| 2021-02-16 | HAA5 11042008:2 | ND |
| 2021-05-05 | DBP 05052105:2 | ND |
| 2021-08-03 | HAA5S 08042105C:2 | ND |
| 2021-11-17 | HAA5S 11172114:2 | ND |
| 2022-09-14 | HAA5S 09142230-4 | ND |
| 2022-10-25 | HAA5S 10262215B:5 | ND |
| 2023-01-19 | HAA5S 01192309-1 | ND |
| 2023-06-15 | HAA5 06152304:2 | ND |
| 2023-09-26 | HAA5 10042313B2 | ND |
| 2023-10-06 | HAA5 12132334:2 | ND |
| 2023-12-06 | HAA5 12132334-2 | ND |