Know Your Environment. Protect Your Health.

Dichloroacetic acid

St. Tam Parish-faubourg-coquille

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
20180.680 ppb440.360 ppb - 1.000 ppb
20190.650 ppb440.540 ppb - 0.760 ppb
20201.05 ppb220.800 ppb - 1.30 ppb
2021ND20ND
2022ND20ND
20230.460 ppb220.290 ppb - 0.630 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
2018-08-10354105050011.000 ppb
2018-08-10354105050020.360 ppb
2018-08-10354105050011.000 ppb
2018-08-10354105050020.360 ppb
2019-08-08354888000010.540 ppb
2019-08-08354888000020.760 ppb
2019-08-08354888000010.540 ppb
2019-08-08354888000020.760 ppb
2020-08-21355727400011.30 ppb
2020-08-21355727400020.800 ppb
2021-08-1235655645001ND
2021-08-1235655645002ND
2022-08-1235740021001ND
2022-08-1235740021002ND
2023-08-04358183820010.290 ppb
2023-08-04358183820020.630 ppb