Know Your Environment. Protect Your Health.

Dichloroacetic acid

Mandeville 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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.585 ppb440.500 ppb - 0.670 ppb
20190.325 ppb42ND - 0.650 ppb
20200.370 ppb32ND - 0.720 ppb
20210.415 ppb21ND - 0.830 ppb
20220.550 ppb21ND - 1.10 ppb
2023ND20ND

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
2018-02-16353748640010.670 ppb
2018-02-16353748640010.670 ppb
2018-08-10354105100010.500 ppb
2018-08-10354105100010.500 ppb
2019-02-21354500320010.650 ppb
2019-02-21354500320010.650 ppb
2019-08-1535490976001ND
2019-08-1535490976001ND
2020-02-14355314440010.720 ppb
2020-08-07355689730010.390 ppb
2020-08-0735568973002ND
2021-02-0535610005001ND
2021-08-02356527290010.830 ppb
2022-02-11356965820011.10 ppb
2022-08-0235736643001ND
2023-02-0335776992001ND
2023-08-1135820298001ND