Know Your Environment. Protect Your Health.

Dichloroacetic acid

Marchi Central Farm

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)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.20 ppb113.20 ppb
2019ND10ND
20202.50 ppb112.50 ppb
20211.80 ppb111.80 ppb
2022ND10ND
20231.60 ppb111.60 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
2018-06-06CA4100551_DST_900-2018060611403.20 ppb
2019-09-24CA4100551_DST_900-201909240530ND
2020-08-05CA4100551_DST_900-2020080508302.50 ppb
2021-08-04CA4100551_DST_900-2021080407151.80 ppb
2022-08-03CA4100551_DST_900-202208030740ND
2023-08-01CA4100551_DST_900-2023080106301.60 ppb