Know Your Environment. Protect Your Health.

Trichloroacetic acid

Cross Timbers Water Supply Corporation

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
20190.138 ppb81ND - 1.10 ppb
20200.125 ppb81ND - 1.000 ppb
2021ND80ND
2022ND80ND
2023ND80ND

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
2018-01-11Q1801616010ND
2018-01-11Q1801616009ND
2018-04-11Q1815188009ND
2018-04-11Q1815188004ND
2018-07-16Q1828198001ND
2018-07-16Q1828198002ND
2018-10-09Q1840452001ND
2018-10-09Q1840452002ND
2019-03-07Q1909909006ND
2019-03-07Q19099090111.10 ppb
2019-06-05Q1932306014ND
2019-06-05Q1932306015ND
2019-09-10Q1963524002ND
2019-09-10Q1963524001ND
2019-12-18Q1980804001ND
2019-12-18Q1980804002ND
2020-03-09Q2008447001ND
2020-03-09Q2008447002ND
2020-05-18Q2019652009ND
2020-05-18Q2019652010ND
2020-08-25Q2034098001ND
2020-08-25Q20340980021.000 ppb
2020-10-12Q2039719029ND
2020-10-12Q2039719030ND
2021-03-16Q2106769001ND
2021-03-16Q2106769002ND
2021-06-03Q2114352001ND
2021-06-03Q2114352002ND
2021-08-30Q2123513007ND
2021-08-30Q2123513008ND
2021-11-08Q2131371005ND
2021-11-08Q2131371006ND
2022-02-17Q2205965010ND
2022-02-17Q2205965011ND
2022-05-02Q2212894002ND
2022-05-02Q2212894003ND
2022-08-22Q2224966001ND
2022-08-22Q2224966002ND
2022-11-29Q2235312014ND
2022-11-29Q2235312015ND
2023-03-02Q2308488019ND
2023-03-02Q2308488020ND
2023-06-19Q2323082002ND
2023-06-19Q2323082003ND
2023-09-20Q2340862002ND
2023-09-20Q2340862003ND
2023-11-27Q2350411018ND
2023-11-27Q2350411019ND