Know Your Environment. Protect Your Health.

Trichloroacetic acid

Miller Grove 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)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.325 ppb82ND - 1.40 ppb
20190.188 ppb81ND - 1.50 ppb
20200.550 ppb82ND - 3.20 ppb
20210.150 ppb81ND - 1.20 ppb
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
2018-02-06Q1804518002ND
2018-02-06Q1804518001ND
2018-04-12Q18151390181.20 ppb
2018-04-12Q18151390071.40 ppb
2018-07-26Q1829825001ND
2018-07-26Q1829825002ND
2018-11-05Q1844033001ND
2018-11-05Q1844033002ND
2019-02-28Q19087790011.50 ppb
2019-02-28Q1908779002ND
2019-05-13Q1923868001ND
2019-05-13Q1923868002ND
2019-09-19Q1967127002ND
2019-09-19Q1967127001ND
2019-11-06Q1975672001ND
2019-11-06Q1975672002ND
2020-03-30Q2012914001ND
2020-03-30Q2012914002ND
2020-05-26Q2020632007ND
2020-05-26Q2020632008ND
2020-07-21Q20288430011.20 ppb
2020-07-21Q20288430023.20 ppb
2020-12-03Q2048461001ND
2020-12-03Q2048461002ND
2021-03-30Q21079520131.20 ppb
2021-03-30Q2107952014ND
2021-05-20Q2113276001ND
2021-05-20Q2113276002ND
2021-09-13Q2124803001ND
2021-09-13Q2124803002ND
2021-11-03Q2130890005ND
2021-11-03Q2130890006ND
2022-02-16Q2205791009ND
2022-02-16Q2205791010ND
2022-04-21Q2212190001ND
2022-04-21Q2212190002ND
2022-07-14Q2220298001ND
2022-07-14Q2220298002ND
2022-10-04Q2230070001ND
2022-10-04Q2230070002ND
2023-02-21Q2307043001ND
2023-02-21Q2307043002ND
2023-05-02Q2316474001ND
2023-05-02Q2316474002ND
2023-07-18Q2327997004ND
2023-07-18Q2327997005ND
2023-10-11Q2343404001ND
2023-10-11Q2343404002ND