Know Your Environment. Protect Your Health.

Monochloroacetic acid

Mount Zion Water Supply Corporation

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.25 ppb43ND - 3.20 ppb
20190.725 ppb42ND - 1.60 ppb
20201.53 ppb43ND - 3.00 ppb
20211.03 ppb42ND - 2.10 ppb
20220.950 ppb42ND - 2.10 ppb
20232.53 ppb43ND - 4.10 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 Lab ID Result
2018-01-30Q1803430002ND
2018-04-25Q18169990033.20 ppb
2018-08-09Q18320220012.60 ppb
2018-11-27Q18479960013.20 ppb
2019-02-21Q19077850011.60 ppb
2019-06-12Q1936431001ND
2019-09-06Q1963520001ND
2019-11-14Q19769160021.30 ppb
2020-02-19Q20063960021.50 ppb
2020-04-22Q20160910011.60 ppb
2020-07-28Q20294130013.00 ppb
2020-11-04Q2043002002ND
2021-02-01Q21028450012.10 ppb
2021-04-27Q21106080012.00 ppb
2021-08-09Q2120930001ND
2021-10-28Q2130406001ND
2022-02-02Q2203929001ND
2022-04-20Q22122060012.10 ppb
2022-09-12Q22269410011.70 ppb
2022-10-19Q2231817001ND
2023-01-23Q2303036001ND
2023-05-08Q23172340014.10 ppb
2023-07-24Q23292360013.80 ppb
2023-10-16Q23438710022.20 ppb