Know Your Environment. Protect Your Health.

Trichloroacetic acid

Deforest 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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
20220.415 ppb220.270 ppb - 0.560 ppb
20230.405 ppb21ND - 0.810 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
2018-08-29404007001ND
2019-09-101146800ND
2020-08-311210974ND
2021-08-251273964ND
2022-08-2313315560.270 ppb
2022-08-2313315550.560 ppb
2023-09-19701208001ND
2023-09-197012050010.810 ppb