Know Your Environment. Protect Your Health.

Trichloroacetic acid

River Ridge Estates 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.

 

36

Samples

0

Samples exceeding legal limit (MCL)

18

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
202038.1 ppb2227.6 ppb - 48.5 ppb
202138.5 ppb101028.1 ppb - 53.1 ppb
202239.3 ppb86ND - 143.0 ppb
2023ND80ND

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
2018-09-1935419524001ND
2018-09-1935419524002ND
2018-09-1935419524001ND
2018-09-1935419524002ND
2019-09-1035497250002ND
2019-09-1035497250001ND
2019-09-1035497250002ND
2019-09-1035497250001ND
2020-09-293558171800148.5 ppb
2020-09-293558171800227.6 ppb
2021-03-043561692500153.1 ppb
2021-03-043561692500233.7 ppb
2021-03-293562279300132.8 ppb
2021-03-293562279300248.2 ppb
2021-06-153564144700143.4 ppb
2021-06-153564144700234.6 ppb
2021-09-213566605600228.1 ppb
2021-09-213566605600139.5 ppb
2021-12-073568343500231.9 ppb
2021-12-073568343500139.6 ppb
2022-03-21357060790011.10 ppb
2022-03-21357060790020.670 ppb
2022-06-273572845100135.7 ppb
2022-06-273572845100234.8 ppb
2022-09-2035748847002ND
2022-09-2035748847001ND
2022-12-0635765787001143.0 ppb
2022-12-063576578700299.2 ppb
2023-03-2035787779001ND
2023-03-2035787779002ND
2023-06-2035808803001ND
2023-06-2035808803002ND
2023-09-2035829714001ND
2023-09-2035829714002ND
2023-12-1935849946001ND
2023-12-1935849946002ND