Know Your Environment. Protect Your Health.

Dichloroacetic acid

North Village Special Service District

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.

 

46

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.500 ppb83ND - 1.50 ppb
20190.775 ppb83ND - 2.60 ppb
20201.11 ppb85ND - 3.70 ppb
20210.438 ppb82ND - 2.00 ppb
2022ND60ND
2023ND80ND

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 Result
2018-01-10ND
2018-01-101.50 ppb
2018-04-091.50 ppb
2018-04-09ND
2018-07-03ND
2018-07-03ND
2018-10-161.000 ppb
2018-10-16ND
2019-03-11ND
2019-03-112.60 ppb
2019-06-19ND
2019-06-19ND
2019-09-10ND
2019-09-10ND
2019-12-032.20 ppb
2019-12-031.40 ppb
2020-03-17ND
2020-03-171.40 ppb
2020-06-09ND
2020-06-091.30 ppb
2020-09-02ND
2020-09-021.40 ppb
2020-12-011.10 ppb
2020-12-013.70 ppb
2021-03-092.00 ppb
2021-03-09ND
2021-06-08ND
2021-06-08ND
2021-09-15ND
2021-09-15ND
2021-12-021.50 ppb
2021-12-02ND
2022-03-08ND
2022-03-08ND
2022-06-16ND
2022-06-16ND
2022-09-12ND
2022-09-12ND
2023-03-14ND
2023-03-14ND
2023-06-12ND
2023-06-12ND
2023-09-06ND
2023-09-06ND
2023-12-04ND
2023-12-04ND