Know Your Environment. Protect Your Health.

Trichloroacetic acid

Nicholson Borough Authority

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20185.90 ppb115.90 ppb
2019ND20ND
20200.194 ppb71ND - 1.36 ppb
20210.250 ppb81ND - 2.00 ppb
2022ND40ND
2023ND20ND

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
2018-10-0870675910015.90 ppb
2019-01-077075990001ND
2019-10-0770108207001ND
2020-01-06ND
2020-04-22ND
2020-04-22ND
2020-07-08ND
2020-07-081.36 ppb
2020-10-08ND
2020-10-08ND
2021-03-23ND
2021-03-23ND
2021-04-26ND
2021-04-26ND
2021-07-06ND
2021-07-06ND
2021-10-052.00 ppb
2021-10-05ND
2022-01-05ND
2022-01-05ND
2022-04-06ND
2022-04-06ND
2023-01-09ND
2023-01-09ND