Know Your Environment. Protect Your Health.

Trichloroacetic acid

City of Richland Hills

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)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.150 ppb81ND - 1.20 ppb
20190.150 ppb81ND - 1.20 ppb
20201.60 ppb82ND - 7.30 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
2018-01-30Q1803802003ND
2018-01-30Q1803802001ND
2018-04-10Q1814526010ND
2018-04-10Q18145260031.20 ppb
2018-07-23Q1829024001ND
2018-07-23Q1829024002ND
2018-10-18Q1841621001ND
2018-10-18Q1841621002ND
2019-01-16Q1902265004ND
2019-01-16Q19022650121.20 ppb
2019-06-17Q1936868001ND
2019-06-17Q1936868002ND
2019-09-03Q1961525002ND
2019-09-03Q1961525001ND
2019-11-21Q1977737001ND
2019-11-21Q1977737002ND
2020-02-19Q2006408018ND
2020-02-19Q2006408019ND
2020-04-07Q2013904001ND
2020-04-07Q2013904002ND
2020-07-16Q20280220015.50 ppb
2020-07-16Q20280220027.30 ppb
2020-11-04Q2042937001ND
2020-11-04Q2042937002ND
2021-03-17Q2107046003ND
2021-03-17Q2107046004ND
2021-04-05Q2108453005ND
2021-04-05Q2108453006ND
2021-07-26Q2119478001ND
2021-07-26Q2119478002ND
2021-10-05Q2127305001ND
2021-10-05Q2127305002ND
2022-01-19Q2202013011ND
2022-01-19Q2202013012ND
2022-04-18Q2211805001ND
2022-04-18Q2211805002ND
2022-08-04Q2222334001ND
2022-08-04Q2222334002ND
2022-11-15Q2234281001ND
2022-11-15Q2234281002ND
2023-01-18Q2302597001ND
2023-01-18Q2302597002ND
2023-05-18Q2318786001ND
2023-05-18Q2318786002ND
2023-09-26Q2341267001ND
2023-09-26Q2341267002ND
2023-11-02Q2347048003ND
2023-11-02Q2347048004ND