Know Your Environment. Protect Your Health.

Trichloroacetic acid

Garden Heights Subdivision Water System

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
20200.505 ppb220.370 ppb - 0.640 ppb
2021ND20ND
20220.800 ppb220.780 ppb - 0.820 ppb
20230.885 ppb220.820 ppb - 0.950 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
2018-06-0135396022001ND
2018-06-0135396022002ND
2018-06-0135396022001ND
2018-06-0135396022002ND
2019-06-0735474274001ND
2019-06-0735474274002ND
2019-06-0735474274001ND
2019-06-0735474274002ND
2020-06-25355593740010.370 ppb
2020-06-25355593740020.640 ppb
2021-06-2435643279001ND
2021-06-2435643279002ND
2022-06-09357238930010.820 ppb
2022-06-09357238930020.780 ppb
2023-06-01358037970010.820 ppb
2023-06-01358037970020.950 ppb