Know Your Environment. Protect Your Health.

Dichloroacetic acid

Rimrock Road Neighborhood

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.290 ppb110.290 ppb
20190.770 ppb110.770 ppb
20200.410 ppb110.410 ppb
20210.400 ppb110.400 ppb
20220.320 ppb110.320 ppb
20230.330 ppb110.330 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
2018-08-1610746620.290 ppb
2019-08-1511414110.770 ppb
2020-08-0412049900.410 ppb
2021-08-0312691670.400 ppb
2022-08-0213276360.320 ppb
2023-08-02CB09029-020.330 ppb