Know Your Environment. Protect Your Health.

Trichloroacetic acid

New Lisbon Waterworks

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0500 ppb21ND - 0.1000 ppb
2019ND20ND
20200.125 ppb21ND - 0.250 ppb
2021ND20ND
20220.160 ppb21ND - 0.320 ppb
20230.255 ppb21ND - 0.510 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
2018-08-081073163ND
2018-08-0810731640.1000 ppb
2019-08-071139807ND
2019-08-071139808ND
2020-08-261210613ND
2020-08-2612106140.250 ppb
2021-08-041269887ND
2021-08-041269888ND
2022-08-161330337ND
2022-08-1613303360.320 ppb
2023-08-09CB09538-01ND
2023-08-09CB09538-020.510 ppb