Know Your Environment. Protect Your Health.

Trichloroacetic acid

Garden Heights 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)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.920 ppb440.860 ppb - 0.980 ppb
20190.945 ppb440.920 ppb - 0.970 ppb
20200.720 ppb220.710 ppb - 0.730 ppb
20210.545 ppb220.530 ppb - 0.560 ppb
20220.850 ppb220.780 ppb - 0.920 ppb
20230.925 ppb220.870 ppb - 0.980 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
2018-08-02354087160010.980 ppb
2018-08-02354087160020.860 ppb
2018-08-02354087160010.980 ppb
2018-08-02354087160020.860 ppb
2019-08-21354926240010.920 ppb
2019-08-21354926240020.970 ppb
2019-08-21354926240010.920 ppb
2019-08-21354926240020.970 ppb
2020-11-02355891910010.710 ppb
2020-11-02355891910020.730 ppb
2021-08-06356537610010.530 ppb
2021-08-06356537610020.560 ppb
2022-08-17357415480010.780 ppb
2022-08-17357415480020.920 ppb
2023-08-29358246060010.870 ppb
2023-08-29358246060020.980 ppb