Know Your Environment. Protect Your Health.

Monochloroacetic acid

Mayfield, 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
20191.15 ppb41ND - 4.60 ppb
20202.18 ppb41ND - 8.70 ppb
20214.88 ppb43ND - 13.0 ppb
20221.40 ppb42ND - 2.90 ppb
20231.85 ppb43ND - 3.00 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
2018-09-101040862ND
2019-03-181137316ND
2019-06-171187098ND
2019-10-071253253ND
2019-12-0912849164.60 ppb
2020-03-091338267ND
2020-06-221412544ND
2020-09-1415198298.70 ppb
2020-12-141710022ND
2021-03-2318009574.20 ppb
2021-06-14185940213.0 ppb
2021-09-1319538962.30 ppb
2021-12-132064008ND
2022-04-112234513ND
2022-06-1322773742.90 ppb
2022-09-2023622112.70 ppb
2022-12-122414502ND
2023-03-2724715713.00 ppb
2023-06-132517161ND
2023-10-1025898462.10 ppb
2023-12-1326260942.30 ppb