Know Your Environment. Protect Your Health.

Monochloroacetic acid

Rolling Hills-glencairn

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.

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
20190.400 ppb81ND - 3.20 ppb
2020N/A00N/A
20210.188 ppb81ND - 1.50 ppb
2022ND100ND
2023ND80ND

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 Lab ID Result
2018-06-19ND
2018-12-26ND
2018-12-26ND
2019-03-19ND
2019-03-19ND
2019-06-18ND
2019-06-183.20 ppb
2019-09-17ND
2019-09-17ND
2019-12-17ND
2019-12-17ND
2021-03-034085712ND
2021-03-294097700ND
2021-06-304137187ND
2021-06-304137185ND
2021-09-2941883881.50 ppb
2021-09-294188390ND
2021-11-174213383ND
2021-12-154221121ND
2022-03-214260801ND
2022-03-234262392ND
2022-05-094335644ND
2022-05-094335647ND
2022-09-204368094ND
2022-09-204368096ND
2022-10-174362992ND
2022-10-174362990ND
2022-11-284384675ND
2022-11-284384668ND
2023-01-204411419ND
2023-02-074415284ND
2023-05-114456952ND
2023-05-124456950ND
2023-09-264548865ND
2023-09-264548867ND
2023-12-054561780ND
2023-12-054562351ND