Know Your Environment. Protect Your Health.

Dichloroacetic acid

East Troy Waterworks

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.520 ppb110.520 ppb
20190.950 ppb110.950 ppb
20200.860 ppb110.860 ppb
20210.760 ppb110.760 ppb
20220.430 ppb110.430 ppb
20230.830 ppb110.830 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
2018-07-2610700300.520 ppb
2019-08-1911420020.950 ppb
2020-07-2312018440.860 ppb
2021-07-2112669380.760 ppb
2022-08-2313319360.430 ppb
2023-08-14WB05073-010.830 ppb