Dichloroacetic acid
Woodridge Village
Dichloroacetic 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 | 20.0 ppb | 4 | 4 | 14.0 ppb - 26.0 ppb |
| 2019 | 15.7 ppb | 2 | 2 | 13.2 ppb - 18.2 ppb |
| 2020 | 12.2 ppb | 5 | 5 | 11.0 ppb - 13.4 ppb |
| 2021 | 20.1 ppb | 4 | 4 | 10.00 ppb - 29.1 ppb |
| 2022 | 15.3 ppb | 4 | 4 | 10.3 ppb - 19.9 ppb |
| 2023 | 18.3 ppb | 4 | 4 | 11.0 ppb - 31.0 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.2 ppb
The EWG Health Guideline of 0.2 ppb for dichloroacetic 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 reproduction and child development.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-01 | DBP J8C0291 | 14.0 ppb |
| 2018-05-10 | DBP J8E0880-01 | 25.0 ppb |
| 2018-07-19 | DBP J8G1736-01 | 26.0 ppb |
| 2018-11-15 | DBP J8K0981-01,2 | 15.0 ppb |
| 2019-02-28 | DBP J9B1399-01 | 13.2 ppb |
| 2019-07-25 | DBP J9G1503-01 | 18.2 ppb |
| 2020-02-05 | DBP S000023315 | 12.1 ppb |
| 2020-05-04 | HAA5 S000026520 | 11.0 ppb |
| 2020-07-31 | DBP9 S000032285 | 12.3 ppb |
| 2020-08-03 | DBP9 S000030187 | 12.3 ppb |
| 2020-11-03 | DBP S030182,95 | 13.4 ppb |
| 2021-03-24 | DBP 369667-01 | 10.00 ppb |
| 2021-05-19 | DBP 371299 | 17.0 ppb |
| 2021-08-10 | DBP S062168,57417 | 29.1 ppb |
| 2021-11-03 | DBP S068292,3 | 24.1 ppb |
| 2022-02-08 | DBP S074814 | 10.3 ppb |
| 2022-05-10 | DBP S074282,13 | 19.9 ppb |
| 2022-08-02 | DBP S000074783,910 | 18.0 ppb |
| 2022-11-09 | DBP S0103915,31 | 13.0 ppb |
| 2023-02-08 | DBP S0137412,00 | 11.0 ppb |
| 2023-05-02 | DBP SO137398, 413 | 14.0 ppb |
| 2023-08-10 | DBP S0137399,407 | 31.0 ppb |
| 2023-11-15 | DBP S000166183 | 17.0 ppb |