Know Your Environment. Protect Your Health.

Trichloroacetic acid

Town of White Castle 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)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.670 ppb440.660 ppb - 0.680 ppb
20191.30 ppb441.28 ppb - 1.31 ppb
20200.965 ppb220.930 ppb - 1.000 ppb
2021ND20ND
20220.285 ppb21ND - 0.570 ppb
20231.62 ppb220.940 ppb - 2.30 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
2018-08-09354104470010.660 ppb
2018-08-09354104470020.680 ppb
2018-08-09354104470010.660 ppb
2018-08-09354104470020.680 ppb
2019-08-09354890440051.28 ppb
2019-08-09354890440061.31 ppb
2019-08-09354890440051.28 ppb
2019-08-09354890440061.31 ppb
2020-08-05355691980011.000 ppb
2020-08-05355691980020.930 ppb
2021-08-0435654310001ND
2021-08-0435654310002ND
2022-08-04357369690010.570 ppb
2022-08-0435736969002ND
2023-08-09358198750012.30 ppb
2023-08-14358209190010.940 ppb