Know Your Environment. Protect Your Health.

Trichloroacetic acid

Western Hills Harbor

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
2022ND20ND
2023ND20ND

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
2018-01-22Q1802343009ND
2018-05-31Q1821631002ND
2018-07-23Q1829048002ND
2018-10-03Q1839557001ND
2019-01-30Q1904578001ND
2019-04-18Q1915697005ND
2019-08-27Q1959859001ND
2019-11-06Q1976026001ND
2020-01-28Q2003239001ND
2020-04-27Q2016255006ND
2020-07-30Q2029892001ND
2020-10-07Q2039324001ND
2021-03-08Q2105929010ND
2021-06-23Q2116461001ND
2021-08-09Q2121012001ND
2021-10-21Q2129793001ND
2022-09-20Q2228064001ND
2022-09-20Q2228064002ND
2023-08-15Q2334040003ND
2023-09-25Q2341212001ND