Know Your Environment. Protect Your Health.

Trichloroacetic acid

Centerville 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)

34

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.738 ppb84ND - 1.70 ppb
20191.35 ppb86ND - 2.40 ppb
20201.68 ppb881.000 ppb - 2.40 ppb
20211.61 ppb881.000 ppb - 2.20 ppb
20221.19 ppb86ND - 2.20 ppb
20230.375 ppb82ND - 1.50 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
2018-02-06Q1804822010ND
2018-02-06Q1804822009ND
2018-05-30Q1821784002ND
2018-05-30Q1821784001ND
2018-08-30Q18350270011.30 ppb
2018-08-30Q18350270021.30 ppb
2018-11-15Q18466550011.60 ppb
2018-11-15Q18466550021.70 ppb
2019-03-26Q19123490051.80 ppb
2019-03-26Q19123490061.60 ppb
2019-06-11Q1934420001ND
2019-06-11Q1934420002ND
2019-09-25Q19695310021.60 ppb
2019-09-25Q19695310011.30 ppb
2019-12-18Q19808150012.40 ppb
2019-12-18Q19808150022.10 ppb
2020-02-20Q20066100051.80 ppb
2020-02-20Q20066100061.80 ppb
2020-06-02Q20221700011.40 ppb
2020-06-02Q20221700022.40 ppb
2020-08-25Q20340710012.00 ppb
2020-08-25Q20340710022.00 ppb
2020-12-01Q20480000011.000 ppb
2020-12-01Q20480000021.000 ppb
2021-03-01Q21051550012.00 ppb
2021-03-01Q21051550022.10 ppb
2021-05-11Q21120930011.30 ppb
2021-05-11Q21120930021.000 ppb
2021-07-27Q21195630012.10 ppb
2021-07-27Q21195630022.20 ppb
2021-10-06Q21275840081.10 ppb
2021-10-06Q21275840091.10 ppb
2022-01-25Q22025390051.80 ppb
2022-01-25Q22025390062.20 ppb
2022-04-06Q22106690011.30 ppb
2022-04-06Q22106690021.40 ppb
2022-07-19Q22206860011.40 ppb
2022-07-19Q22206860021.40 ppb
2022-10-10Q2230473001ND
2022-10-10Q2230473002ND
2023-01-04Q23005580011.50 ppb
2023-01-04Q23005580021.50 ppb
2023-06-12Q2322103001ND
2023-06-12Q2322103002ND
2023-07-27Q2330275001ND
2023-07-27Q2330275002ND
2023-11-30Q2351074001ND
2023-11-30Q2351074002ND