Know Your Environment. Protect Your Health.

Trichloroacetic acid

Millsap 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)

28

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
20190.700 ppb84ND - 1.60 ppb
20201.99 ppb86ND - 3.70 ppb
20212.39 ppb881.20 ppb - 4.20 ppb
20221.28 ppb86ND - 2.00 ppb
20231.50 ppb84ND - 3.50 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
2018-02-12Q1805580003ND
2018-02-12Q1805580002ND
2018-05-02Q1817755002ND
2018-05-02Q1817755001ND
2018-08-08Q1831513001ND
2018-08-08Q1831513002ND
2018-11-27Q1848065001ND
2018-11-27Q1848065002ND
2019-02-27Q1908296002ND
2019-02-27Q1908296003ND
2019-06-05Q19323470011.60 ppb
2019-06-05Q19323470021.60 ppb
2019-08-22Q19584720021.10 ppb
2019-08-22Q19584720011.30 ppb
2019-11-05Q1975094001ND
2019-11-05Q1975094002ND
2020-03-12Q2010466002ND
2020-03-12Q2010466003ND
2020-06-03Q20219830013.70 ppb
2020-06-03Q20219830022.20 ppb
2020-08-26Q20342180013.00 ppb
2020-08-26Q20342180023.00 ppb
2020-11-17Q20453910012.00 ppb
2020-11-17Q20453910022.00 ppb
2021-03-03Q21056420011.20 ppb
2021-03-03Q21056420021.40 ppb
2021-05-26Q21137010014.20 ppb
2021-05-26Q21137010023.40 ppb
2021-08-24Q21229860013.30 ppb
2021-08-24Q21229860022.50 ppb
2021-12-01Q21334980011.40 ppb
2021-12-01Q21334980021.70 ppb
2022-03-22Q2209182002ND
2022-03-22Q2209182003ND
2022-05-26Q22152470011.60 ppb
2022-05-26Q22152470021.20 ppb
2022-09-26Q22289510011.70 ppb
2022-09-26Q22289510021.70 ppb
2022-11-16Q22345560012.00 ppb
2022-11-16Q22345560022.00 ppb
2023-02-09Q23051970012.50 ppb
2023-02-09Q23051970022.60 ppb
2023-06-15Q23227830013.40 ppb
2023-06-15Q23227830023.50 ppb
2023-08-28Q2336746002ND
2023-08-28Q2336746003ND
2023-11-07Q2347813001ND
2023-11-07Q2347813002ND