Know Your Environment. Protect Your Health.

Monochloroacetic acid

Chipeta Water District

Monochloroacetic 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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.810 ppb220.670 ppb - 0.950 ppb
2019ND10ND
20200.633 ppb42ND - 1.68 ppb
20210.585 ppb43ND - 0.890 ppb
20220.175 ppb41ND - 0.700 ppb
20231.80 ppb440.880 ppb - 3.32 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic 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.a public health goal. This health guideline protects against change to fetal growth and development.

ppb = parts per billion

All test results

Date Result
2018-08-020.950 ppb
2018-11-050.670 ppb
2019-11-05ND
2020-02-041.68 ppb
2020-05-05ND
2020-08-05ND
2020-11-030.850 ppb
2021-02-020.770 ppb
2021-05-04ND
2021-08-030.890 ppb
2021-11-090.680 ppb
2022-02-150.700 ppb
2022-05-05ND
2022-08-02ND
2022-11-08ND
2023-02-070.880 ppb
2023-05-023.32 ppb
2023-08-071.56 ppb
2023-11-071.43 ppb