Know Your Environment. Protect Your Health.

Trichloroacetic acid

Seneca Sanitary District No 1

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.496 ppb220.351 ppb - 0.641 ppb
2019ND30ND
20200.337 ppb110.337 ppb
2021N/A00N/A
2022N/A00N/A
20230.550 ppb110.550 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
2018-07-1118G0698-010.641 ppb
2018-10-1518J0525-010.351 ppb
2019-01-2119A0625-01ND
2019-04-2319D0785-02ND
2019-07-2219G0733-01ND
2020-09-2120I0764-010.337 ppb
2023-09-1923I0603-010.550 ppb