Dibromoacetic acid
Wilmington
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 | 0.869 ppb | 8 | 2 | ND - 3.72 ppb |
| 2019 | 0.521 ppb | 8 | 2 | ND - 2.10 ppb |
| 2020 | 0.274 ppb | 8 | 2 | ND - 1.18 ppb |
| 2021 | 0.130 ppb | 8 | 2 | ND - 0.523 ppb |
| 2022 | 0.259 ppb | 10 | 6 | ND - 0.504 ppb |
| 2023 | 0.384 ppb | 10 | 6 | ND - 1.02 ppb |
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 |
|---|---|---|
| 2018-02-14 | 8022650-01 | ND |
| 2018-02-14 | 8022650-02 | ND |
| 2018-05-24 | 8054529-01 | ND |
| 2018-05-24 | 8054529-02 | ND |
| 2018-08-23 | 8084713-01 | 3.72 ppb |
| 2018-08-23 | 8084713-02 | 3.23 ppb |
| 2018-11-16 | 8113340-02 | ND |
| 2018-11-16 | 8113340-01 | ND |
| 2019-02-13 | 9022637-01 | ND |
| 2019-02-13 | 9022637-02 | ND |
| 2019-05-08 | 9052312-01 | ND |
| 2019-05-08 | 9052312-02 | ND |
| 2019-08-07 | 9081957-02 | 2.07 ppb |
| 2019-08-07 | 9081957-01 | 2.10 ppb |
| 2019-11-06 | 9111440-01 | ND |
| 2019-11-06 | 9111440-02 | ND |
| 2020-02-04 | 0021333-02 | ND |
| 2020-02-04 | 0021333-01 | ND |
| 2020-05-13 | 0052773-02 | ND |
| 2020-05-13 | 0052773-01 | ND |
| 2020-08-05 | 0081616-02 | ND |
| 2020-08-05 | 0081616-01 | ND |
| 2020-11-04 | 0111238-02 | 1.18 ppb |
| 2020-11-04 | 0111238-01 | 1.01 ppb |
| 2021-02-03 | EB01279-02 | ND |
| 2021-02-04 | EB01279-01 | ND |
| 2021-05-12 | EE02954-02 | ND |
| 2021-05-12 | EE02954-01 | ND |
| 2021-08-26 | 2108R85-001B | 0.523 ppb |
| 2021-08-26 | 2108R85-002B | 0.514 ppb |
| 2021-11-05 | 2111794-002B | ND |
| 2021-11-05 | 2111794-001B | ND |
| 2022-02-28 | 2202M31-001B | ND |
| 2022-02-28 | 2202M31-002B | ND |
| 2022-04-20 | 2204G66-001B | 0.382 ppb |
| 2022-04-20 | 2204G66-002B | 0.402 ppb |
| 2022-05-18 | 2205G28-001B | ND |
| 2022-05-18 | 2205G28-002B | ND |
| 2022-08-04 | 2208544-002B | 0.472 ppb |
| 2022-08-04 | 2208544-001B | 0.433 ppb |
| 2022-11-15 | 2211E86-002B | 0.504 ppb |
| 2022-11-15 | 2211E86-001B | 0.394 ppb |
| 2023-01-17 | 2301C67-002B | 0.851 ppb |
| 2023-01-17 | 2301C67-001B | 1.02 ppb |
| 2023-02-23 | 2302J61-001B | 0.442 ppb |
| 2023-02-23 | 2302J61-002B | 0.457 ppb |
| 2023-04-18 | 2304E11-001B | 0.522 ppb |
| 2023-04-18 | 2304E11-002B | 0.546 ppb |
| 2023-08-30 | GH06202-01 | ND |
| 2023-08-30 | GH06202-02 | ND |
| 2023-11-15 | GK03217-02 | ND |
| 2023-11-15 | GK03217-01 | ND |