Know Your Environment. Protect Your Health.

Trichloroacetic acid

Bcwsa New Hope

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.

 

32

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.660 ppb21ND - 1.32 ppb
2019ND20ND
2020ND40ND
20211.41 ppb81ND - 11.3 ppb
20224.89 ppb82ND - 20.2 ppb
20230.159 ppb81ND - 1.27 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
2018-08-218084197-01ND
2018-08-218084197-021.32 ppb
2019-08-199028900-01ND
2019-08-199028901-01ND
2020-08-18ND
2020-08-18ND
2020-11-17ND
2020-11-17ND
2021-02-22ND
2021-03-1611.3 ppb
2021-05-24ND
2021-05-24ND
2021-08-09ND
2021-08-09ND
2021-11-08ND
2021-11-08ND
2022-02-1120.2 ppb
2022-02-11ND
2022-05-0918.9 ppb
2022-05-09ND
2022-08-08ND
2022-08-08ND
2022-11-07ND
2022-11-07ND
2023-02-101.27 ppb
2023-02-10ND
2023-05-08ND
2023-05-08ND
2023-08-11ND
2023-08-11ND
2023-11-14ND
2023-11-14ND