Know Your Environment. Protect Your Health.

Dichloroacetic acid

Utilities Inc. - North Park Water Supply

Dichloroacetic 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)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.260 ppb42ND - 0.520 ppb
20190.970 ppb440.950 ppb - 0.990 ppb
20200.400 ppb220.280 ppb - 0.520 ppb
20211.77 ppb220.940 ppb - 2.60 ppb
20220.395 ppb21ND - 0.790 ppb
20231.10 ppb21ND - 2.20 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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
2018-08-10354104910010.520 ppb
2018-08-1035410491002ND
2018-08-10354104910010.520 ppb
2018-08-1035410491002ND
2019-08-09354890900010.950 ppb
2019-08-09354890900020.990 ppb
2019-08-09354890900010.950 ppb
2019-08-09354890900020.990 ppb
2020-08-06355689590010.520 ppb
2020-08-06355689590020.280 ppb
2021-08-03356527170010.940 ppb
2021-08-03356527170022.60 ppb
2022-08-0335736990001ND
2022-08-03357369900020.790 ppb
2023-08-0435818397001ND
2023-08-04358183970022.20 ppb