Know Your Environment. Protect Your Health.

Dichloroacetic acid

Ruth Water District

NOTE: Ruth Water District purchases water from Ely Municipal Water Department which is required to test for dichloroacetic acid. Sample information shown below was taken by Ely Municipal Water Department.

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
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

NOTE: Ruth Water District purchases water from Ely Municipal Water Department which is required to test for dichloroacetic acid. Sample information shown below was taken by Ely Municipal Water Department.

Date Lab ID Result
2018-07-191807658-0028.50 ppb
2019-08-1419080547-001ND
2020-08-2720080935-001ND
2021-09-30202110080060ND
2021-10-21202110270927ND
2021-11-04202111100758ND
2022-09-01380-20183-1ND
2023-09-13AGI2449-01ND
2023-11-0823110200-003ND