Know Your Environment. Protect Your Health.

Dichloroacetic acid

Wigwam Mutual Water Company

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

11

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.650 ppb42ND - 1.30 ppb
20190.400 ppb41ND - 1.60 ppb
20201.08 ppb43ND - 1.70 ppb
20210.600 ppb42ND - 1.20 ppb
20220.400 ppb41ND - 1.60 ppb
20231.15 ppb42ND - 2.50 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 Result
2018-02-07ND
2018-04-03ND
2018-07-101.30 ppb
2018-10-021.30 ppb
2019-01-02ND
2019-04-02ND
2019-07-02ND
2019-10-011.60 ppb
2020-01-07ND
2020-04-061.000 ppb
2020-07-011.60 ppb
2020-10-051.70 ppb
2021-01-18ND
2021-04-12ND
2021-07-061.20 ppb
2021-10-061.20 ppb
2022-01-17ND
2022-04-04ND
2022-07-05ND
2022-10-111.60 ppb
2023-01-23ND
2023-04-10ND
2023-07-172.10 ppb
2023-10-022.50 ppb