Know Your Environment. Protect Your Health.

Monochloroacetic acid

Mount Ayr Water Treatment Plant

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
20190.250 ppb81ND - 2.00 ppb
2020ND80ND
20211.45 ppb83ND - 4.35 ppb
2022ND80ND
20234.05 ppb82ND - 18.1 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
2018-01-08OE608705ND
2018-01-08OE608704ND
2018-04-16OE646181ND
2018-04-16OE646180ND
2018-07-16OE684544ND
2018-07-16OE684545ND
2018-10-23OE731167ND
2018-10-23OE731168ND
2019-01-14OE760463ND
2019-01-14OE760464ND
2019-04-09OE792428ND
2019-04-09OE792429ND
2019-07-08OE8314982.00 ppb
2019-07-08OE831497ND
2019-10-01OE873830ND
2019-10-01OE873831ND
2020-01-06OE913272ND
2020-01-06OE913273ND
2020-04-06OE953864ND
2020-04-06OE953865ND
2020-07-20OE1129744ND
2020-07-20OE1129745ND
2020-10-26OE1366424ND
2020-10-26OE1366425ND
2021-01-12OE1542007ND
2021-01-12OE1542008ND
2021-04-20OE1668907ND
2021-04-20OE1668908ND
2021-07-291EG3156-014.26 ppb
2021-07-291EG3156-024.35 ppb
2021-10-20OE1900303ND
2021-10-20OE19003043.00 ppb
2022-01-10OE2004576ND
2022-01-10OE2004577ND
2022-04-11OE2080272ND
2022-04-11OE2080273ND
2022-07-11OE2132522ND
2022-07-11OE2132523ND
2022-10-26OE2196627ND
2022-10-26OE2196628ND
2023-01-11OE2229053ND
2023-01-11OE2229054ND
2023-04-17OE2268322ND
2023-04-17OE2268321ND
2023-07-251GG2396-01ND
2023-07-251GG2396-02ND
2023-10-191GJ1837-0214.3 ppb
2023-10-191GJ1837-0118.1 ppb