Know Your Environment. Protect Your Health.

Dichloroacetic acid

Prairie Hill Water Supply Corporation

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
20201.000 ppb221.000 ppb
20210.500 ppb21ND - 1.000 ppb
2022ND20ND
20231.25 ppb221.10 ppb - 1.40 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
2018-05-16Q1820016001ND
2018-05-16Q1820016004ND
2019-06-18Q1937231003ND
2019-06-18Q1937231004ND
2020-07-27Q20291760031.000 ppb
2020-07-27Q20291760041.000 ppb
2021-05-18Q21129340031.000 ppb
2021-05-18Q2112934004ND
2022-08-22Q2224811003ND
2022-08-22Q2224811004ND
2023-05-30Q23199300031.10 ppb
2023-05-30Q23199300041.40 ppb