Know Your Environment. Protect Your Health.

Monochloroacetic acid

Western Cass 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.

 

46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.27 ppb661.20 ppb - 3.90 ppb
20190.725 ppb85ND - 1.30 ppb
20201.16 ppb86ND - 2.00 ppb
20210.175 ppb81ND - 1.40 ppb
20220.463 ppb82ND - 2.20 ppb
20231.39 ppb86ND - 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
2018-06-25Q18251960023.90 ppb
2018-06-25Q18251960013.20 ppb
2018-09-20Q18378080021.90 ppb
2018-09-20Q18378080011.60 ppb
2018-12-05Q18501030011.80 ppb
2018-12-05Q18501030021.20 ppb
2019-02-27Q1908266001ND
2019-02-27Q19082660021.000 ppb
2019-05-02Q19182360151.20 ppb
2019-05-02Q19182360161.30 ppb
2019-08-14Q19548740011.30 ppb
2019-08-14Q19548740021.000 ppb
2019-10-21Q1973228001ND
2019-10-21Q1973228002ND
2020-02-25Q20069470011.70 ppb
2020-02-25Q20069470021.20 ppb
2020-04-21Q2015767034ND
2020-04-21Q2015767035ND
2020-07-28Q20294400031.50 ppb
2020-07-28Q20294400041.90 ppb
2020-10-22Q20412220032.00 ppb
2020-10-22Q20412220041.000 ppb
2021-03-23Q2107377002ND
2021-03-23Q2107377001ND
2021-05-11Q2112126001ND
2021-05-11Q2112126002ND
2021-08-17Q2122409001ND
2021-08-17Q21224090021.40 ppb
2021-10-25Q2129911018ND
2021-10-25Q2129911019ND
2022-02-08Q2204276001ND
2022-02-08Q2204276002ND
2022-04-14Q2211593017ND
2022-04-14Q2211593018ND
2022-08-11Q2223327001ND
2022-08-11Q22233270021.50 ppb
2022-11-16Q2234548006ND
2022-11-16Q22345480072.20 ppb
2023-02-13Q2305586001ND
2023-02-13Q2305586002ND
2023-06-07Q23214350011.70 ppb
2023-06-07Q23214350022.00 ppb
2023-08-01Q23311110201.70 ppb
2023-08-01Q23311110212.40 ppb
2023-10-02Q23421200331.30 ppb
2023-10-02Q23421200342.00 ppb