Know Your Environment. Protect Your Health.

Dichloroacetic acid

The Coves Water Supply Corporation

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND10ND
20201.20 ppb111.20 ppb
2021ND10ND
20220.900 ppb21ND - 1.80 ppb
2023ND20ND

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
2018-01-30AE11215ND
2018-05-16AE26539ND
2018-07-16AE33314ND
2019-07-09AE73629ND
2020-06-03AF137281.20 ppb
2021-06-16AF58241ND
2022-09-12AG123651.80 ppb
2022-09-12AG12367ND
2023-08-01AG50777ND
2023-08-01AG50779ND