Know Your Environment. Protect Your Health.

Monochloroacetic acid

Bristol Department Utilities

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.

 

52

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20212.40 ppb1610ND - 4.32 ppb
20223.61 ppb2016ND - 9.51 ppb
20232.02 ppb168ND - 7.99 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
2021-03-034.06 ppb
2021-03-034.16 ppb
2021-03-03ND
2021-03-03ND
2021-06-024.32 ppb
2021-06-022.53 ppb
2021-06-024.28 ppb
2021-06-024.07 ppb
2021-09-023.90 ppb
2021-09-022.82 ppb
2021-09-024.12 ppb
2021-09-024.11 ppb
2021-12-01ND
2021-12-01ND
2021-12-01ND
2021-12-01ND
2022-03-022.82 ppb
2022-03-02ND
2022-03-022.83 ppb
2022-03-023.00 ppb
2022-03-022.82 ppb
2022-03-02ND
2022-03-022.83 ppb
2022-03-023.00 ppb
2022-06-014.36 ppb
2022-06-014.61 ppb
2022-06-014.92 ppb
2022-06-012.42 ppb
2022-09-075.46 ppb
2022-09-07ND
2022-09-073.26 ppb
2022-09-073.67 ppb
2022-12-078.04 ppb
2022-12-07ND
2022-12-078.71 ppb
2022-12-079.51 ppb
2023-03-01ND
2023-03-01ND
2023-03-01ND
2023-03-01ND
2023-06-074.23 ppb
2023-06-07ND
2023-06-077.75 ppb
2023-06-077.99 ppb
2023-09-062.42 ppb
2023-09-06ND
2023-09-062.06 ppb
2023-09-06ND
2023-12-062.93 ppb
2023-12-06ND
2023-12-062.20 ppb
2023-12-062.79 ppb