Know Your Environment. Protect Your Health.

Monochloroacetic acid

Rozel, City 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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
20190.625 ppb41ND - 2.50 ppb
20200.925 ppb41ND - 3.70 ppb
20211.28 ppb42ND - 2.70 ppb
20220.650 ppb41ND - 2.60 ppb
20230.600 ppb41ND - 2.40 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
2018-09-251050045ND
2019-04-011138514ND
2019-06-091183968ND
2019-09-231245900ND
2019-12-0812849102.50 ppb
2020-03-1613417873.70 ppb
2020-06-211411733ND
2020-09-161518422ND
2020-12-131710020ND
2021-03-211799889ND
2021-06-2018641282.70 ppb
2021-09-281973504ND
2021-12-1920753312.40 ppb
2022-03-202219193ND
2022-06-202283335ND
2022-10-0323699102.60 ppb
2022-12-192418617ND
2023-03-202468182ND
2023-06-122516259ND
2023-09-252581359ND
2023-12-1126246252.40 ppb