Know Your Environment. Protect Your Health.

Trichloroacetic acid

Cooper County Consolidated Public Water Supply District # 1

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.

 

50

Samples

0

Samples exceeding legal limit (MCL)

27

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20187.24 ppb84ND - 23.7 ppb
201915.7 ppb85ND - 50.2 ppb
202013.7 ppb106ND - 54.9 ppb
20215.37 ppb85ND - 12.0 ppb
20223.90 ppb84ND - 9.21 ppb
20231.62 ppb83ND - 9.24 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
2018-02-23AD14261ND
2018-02-23AD142623.08 ppb
2018-05-24AD2049523.7 ppb
2018-05-24AD20494ND
2018-08-15AD3118210.5 ppb
2018-08-15AD31183ND
2018-11-15AD3570420.6 ppb
2018-11-15AD35705ND
2019-03-14AD4140512.7 ppb
2019-03-14AD41406ND
2019-05-21AD47454ND
2019-05-21AD4745317.2 ppb
2019-08-27AD5391050.2 ppb
2019-08-27AD53911ND
2019-12-16AD5959922.0 ppb
2019-12-16AD5960023.7 ppb
2020-02-122002026ND
2020-02-12200202554.9 ppb
2020-05-292008900ND
2020-05-29200890121.0 ppb
2020-06-152010784ND
2020-06-15201078332.6 ppb
2020-08-2020143441.81 ppb
2020-09-28201643516.6 ppb
2020-11-2320180549.80 ppb
2020-11-232018055ND
2021-03-012100760ND
2021-03-01210075912.0 ppb
2021-05-18211094410.5 ppb
2021-05-1821109451.82 ppb
2021-08-162115304ND
2021-08-1621153036.87 ppb
2021-11-15211952211.8 ppb
2021-11-152119523ND
2022-02-142202057ND
2022-02-1422020565.19 ppb
2022-05-2322115638.47 ppb
2022-05-232211564ND
2022-08-172216265ND
2022-08-1722162648.32 ppb
2022-11-2222211769.21 ppb
2022-11-222221177ND
2023-02-222300678ND
2023-02-2223006779.24 ppb
2023-05-1523081362.36 ppb
2023-05-1523081371.35 ppb
2023-08-162313364ND
2023-08-162313363ND
2023-11-162318301ND
2023-11-162318302ND