Know Your Environment. Protect Your Health.

Trichloroacetic acid

South Murvaul 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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.35 ppb221.30 ppb - 1.40 ppb
20191.18 ppb42ND - 2.40 ppb
20201.54 ppb86ND - 3.10 ppb
20210.750 ppb41ND - 3.00 ppb
2022ND20ND
20231.000 ppb221.000 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
2018-09-14Q18368130021.40 ppb
2018-09-14Q18368130011.30 ppb
2019-09-30Q19699380022.30 ppb
2019-09-30Q19699380032.40 ppb
2019-12-17Q1980331001ND
2019-12-17Q1980331002ND
2020-03-11Q20102980012.30 ppb
2020-03-11Q20102980023.10 ppb
2020-06-17Q20246660011.40 ppb
2020-06-17Q20246660021.50 ppb
2020-09-22Q20375310022.00 ppb
2020-09-22Q20375310012.00 ppb
2020-12-02Q2048004003ND
2020-12-02Q2048004004ND
2021-02-24Q2104968001ND
2021-02-24Q2104968002ND
2021-05-19Q21131320013.00 ppb
2021-05-19Q2113132002ND
2022-09-13Q2227122005ND
2022-09-13Q2227122007ND
2023-06-20Q23235480051.000 ppb
2023-06-20Q23235480061.000 ppb