Know Your Environment. Protect Your Health.

Trichloroacetic acid

City of Giddings

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
20211.25 ppb221.10 ppb - 1.40 ppb
20220.925 ppb43ND - 1.30 ppb
20230.788 ppb85ND - 2.10 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
2018-06-14AE29997ND
2018-06-14AE29995ND
2019-05-01AE64302ND
2019-05-01AE64303ND
2020-06-15AF15196ND
2020-06-15AF15199ND
2021-05-06AF527191.40 ppb
2021-05-06AF527201.10 ppb
2022-09-23AG146211.20 ppb
2022-09-23AG14622ND
2022-12-08AG212611.30 ppb
2022-12-08AG212621.20 ppb
2023-03-01AG30954ND
2023-03-01AG30955ND
2023-06-06AG432081.10 ppb
2023-06-06AG432111.000 ppb
2023-08-16AG527981.10 ppb
2023-08-16AG52800ND
2023-12-05AG654332.10 ppb
2023-12-05AG654341.000 ppb