Know Your Environment. Protect Your Health.

Dichloroacetic acid

Cross Timbers Water Supply Corporation

Dichloroacetic 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)

24

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.10 ppb85ND - 5.40 ppb
20192.43 ppb86ND - 4.20 ppb
20201.56 ppb84ND - 4.00 ppb
20210.813 ppb83ND - 3.30 ppb
20221.38 ppb84ND - 3.20 ppb
20230.550 ppb82ND - 2.60 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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
2018-01-11Q18016160105.40 ppb
2018-01-11Q18016160093.00 ppb
2018-04-11Q1815188009ND
2018-04-11Q18151880042.10 ppb
2018-07-16Q1828198001ND
2018-07-16Q18281980022.10 ppb
2018-10-09Q18404520014.20 ppb
2018-10-09Q1840452002ND
2019-03-07Q19099090063.70 ppb
2019-03-07Q19099090113.30 ppb
2019-06-05Q1932306014ND
2019-06-05Q19323060154.20 ppb
2019-09-10Q19635240023.40 ppb
2019-09-10Q1963524001ND
2019-12-18Q19808040012.00 ppb
2019-12-18Q19808040022.80 ppb
2020-03-09Q20084470013.30 ppb
2020-03-09Q20084470023.30 ppb
2020-05-18Q2019652009ND
2020-05-18Q20196520101.90 ppb
2020-08-25Q2034098001ND
2020-08-25Q20340980024.00 ppb
2020-10-12Q2039719029ND
2020-10-12Q2039719030ND
2021-03-16Q2106769001ND
2021-03-16Q21067690022.20 ppb
2021-06-03Q2114352001ND
2021-06-03Q2114352002ND
2021-08-30Q2123513007ND
2021-08-30Q21235130083.30 ppb
2021-11-08Q2131371005ND
2021-11-08Q21313710061.000 ppb
2022-02-17Q22059650102.80 ppb
2022-02-17Q22059650112.10 ppb
2022-05-02Q2212894002ND
2022-05-02Q22128940033.20 ppb
2022-08-22Q2224966001ND
2022-08-22Q2224966002ND
2022-11-29Q2235312014ND
2022-11-29Q22353120152.90 ppb
2023-03-02Q2308488019ND
2023-03-02Q23084880201.80 ppb
2023-06-19Q2323082002ND
2023-06-19Q2323082003ND
2023-09-20Q2340862002ND
2023-09-20Q23408620032.60 ppb
2023-11-27Q2350411018ND
2023-11-27Q2350411019ND