Know Your Environment. Protect Your Health.

Trichloroacetic acid

Utilities Inc. - North Park Water Supply

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
2018ND40ND
20190.445 ppb440.440 ppb - 0.450 ppb
20200.335 ppb220.310 ppb - 0.360 ppb
20211.05 ppb220.600 ppb - 1.50 ppb
20220.420 ppb21ND - 0.840 ppb
20230.750 ppb21ND - 1.50 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
2018-08-1035410491001ND
2018-08-1035410491002ND
2018-08-1035410491001ND
2018-08-1035410491002ND
2019-08-09354890900010.450 ppb
2019-08-09354890900020.440 ppb
2019-08-09354890900010.450 ppb
2019-08-09354890900020.440 ppb
2020-08-06355689590010.360 ppb
2020-08-06355689590020.310 ppb
2021-08-03356527170010.600 ppb
2021-08-03356527170021.50 ppb
2022-08-0335736990001ND
2022-08-03357369900020.840 ppb
2023-08-0435818397001ND
2023-08-04358183970021.50 ppb