Know Your Environment. Protect Your Health.

Trichloroacetic acid

East Troy Waterworks

Trichloroacetic 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
20180.760 ppb110.760 ppb
20190.940 ppb110.940 ppb
20200.900 ppb110.900 ppb
20210.850 ppb110.850 ppb
20220.230 ppb110.230 ppb
20230.810 ppb110.810 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic 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
2018-07-2610700300.760 ppb
2019-08-1911420020.940 ppb
2020-07-2312018440.900 ppb
2021-07-2112669380.850 ppb
2022-08-2313319360.230 ppb
2023-08-14WB05073-010.810 ppb