Know Your Environment. Protect Your Health.

Monochloroacetic acid

Crested Butte, Town of

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.400 ppb41ND - 1.60 ppb
2019ND50ND
2020ND40ND
2021ND40ND
20220.480 ppb51ND - 2.40 ppb
20231.25 ppb42ND - 2.89 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
2018-01-24ND
2018-04-11ND
2018-07-121.60 ppb
2018-10-10ND
2019-01-10ND
2019-04-10ND
2019-07-10ND
2019-08-14ND
2019-10-09ND
2020-01-09ND
2020-04-07ND
2020-07-07ND
2020-10-14ND
2021-01-13ND
2021-04-07ND
2021-07-14ND
2021-10-20ND
2022-01-11ND
2022-04-20ND
2022-07-122.40 ppb
2022-09-12ND
2022-10-12ND
2023-01-12ND
2023-04-12ND
2023-07-182.89 ppb
2023-10-122.10 ppb