Know Your Environment. Protect Your Health.

Trichloroacetic acid

Wbr Public Utilities

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)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.755 ppb440.700 ppb - 0.810 ppb
20190.660 ppb440.660 ppb
20200.510 ppb220.440 ppb - 0.580 ppb
20210.410 ppb21ND - 0.820 ppb
20221.17 ppb221.01 ppb - 1.33 ppb
20231.20 ppb221.10 ppb - 1.30 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
2018-06-14353987230010.700 ppb
2018-06-14353987230020.810 ppb
2018-06-14353987230010.700 ppb
2018-06-14353987230020.810 ppb
2019-06-04354737450010.660 ppb
2019-06-04354737450020.660 ppb
2019-06-04354737450010.660 ppb
2019-06-04354737450020.660 ppb
2020-06-15355578650010.440 ppb
2020-06-15355578650020.580 ppb
2021-06-15356418770010.820 ppb
2021-06-1535641877002ND
2022-06-07B2202665-0011.33 ppb
2022-06-07B2202665-0021.01 ppb
2023-06-06358045500051.30 ppb
2023-06-06358045500061.10 ppb