Know Your Environment. Protect Your Health.

Trichloroacetic acid

Village of Simpson 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)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.680 ppb440.610 ppb - 0.750 ppb
20190.155 ppb42ND - 0.310 ppb
20200.375 ppb220.370 ppb - 0.380 ppb
2021ND20ND
2022ND20ND
20230.500 ppb220.480 ppb - 0.520 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
2018-08-07354095610010.610 ppb
2018-08-07354095610020.750 ppb
2018-08-07354095610010.610 ppb
2018-08-07354095610020.750 ppb
2019-08-0735488405001ND
2019-08-07354884050020.310 ppb
2019-08-0735488405001ND
2019-08-07354884050020.310 ppb
2020-08-18355717990010.380 ppb
2020-08-18355717990020.370 ppb
2021-08-1835656862001ND
2021-08-1835656862002ND
2022-08-0335736639001ND
2022-08-0335736639002ND
2023-08-02358177170010.480 ppb
2023-08-02358177170020.520 ppb