Know Your Environment. Protect Your Health.

Trichloroacetic acid

American Legion Mia Post 231

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND10ND
20236.10 ppb333.90 ppb - 7.50 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
2018-08-30Q1835065008ND
2019-05-30Q1929976001ND
2020-05-26Q2020649005ND
2021-06-01Q2114155011ND
2022-09-21Q2228364001ND
2023-06-26Q23243230017.50 ppb
2023-09-06Q23384480026.90 ppb
2023-12-14Q23536340013.90 ppb