Know Your Environment. Protect Your Health.

Monochloroacetic acid

Rice University

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.

 

46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
20190.413 ppb81ND - 3.30 ppb
20201.19 ppb82ND - 5.10 ppb
2021ND80ND
2022ND80ND
2023ND60ND

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
2018-01-11AE08912ND
2018-03-13AE18129ND
2018-04-03AE21006ND
2018-04-03AE20974ND
2018-07-09AE32591ND
2018-07-09AE32595ND
2018-10-10AE43071ND
2018-10-10AE43072ND
2019-01-16AE50114ND
2019-01-16AE50117ND
2019-04-04AE61194ND
2019-04-04AE61195ND
2019-07-09AE73640ND
2019-07-09AE736653.30 ppb
2019-11-15AE89515ND
2019-11-15AE89517ND
2020-02-07AE97592ND
2020-02-07AE97595ND
2020-04-27AF082345.10 ppb
2020-04-27AF082364.40 ppb
2020-07-23AF20432ND
2020-07-23AF20434ND
2020-10-22AF31647ND
2020-10-22AF31646ND
2021-02-08AF42911ND
2021-02-08AF42912ND
2021-04-13AF49943ND
2021-04-13AF49946ND
2021-08-25AF67912ND
2021-08-25AF67916ND
2021-10-25AF74461ND
2021-10-25AF74462ND
2022-02-02AF83245ND
2022-02-02AF83246ND
2022-05-02AF95056ND
2022-05-02AF95057ND
2022-09-09AG12372ND
2022-09-09AG12374ND
2022-10-12AG16811ND
2022-10-12AG16824ND
2023-02-02AG27106ND
2023-02-02AG27107ND
2023-04-21AG37646ND
2023-04-21AG37647ND
2023-08-16AG52811ND
2023-08-16AG52829ND