Know Your Environment. Protect Your Health.

Monochloroacetic acid

Charlie 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
20181.95 ppb43ND - 3.20 ppb
20191.23 ppb43ND - 2.00 ppb
20201.05 ppb42ND - 3.00 ppb
20211.20 ppb43ND - 2.70 ppb
2022ND40ND
20231.05 ppb42ND - 2.60 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
2018-02-28Q1808444005ND
2018-05-09Q18191930023.20 ppb
2018-08-23Q18340000032.40 ppb
2018-11-13Q18457150012.20 ppb
2019-01-29Q19044390102.00 ppb
2019-05-16Q1926562002ND
2019-09-16Q19655560021.30 ppb
2019-12-03Q19786520021.60 ppb
2020-03-03Q20079770021.20 ppb
2020-06-09Q2023219002ND
2020-09-22Q20375630023.00 ppb
2020-11-30Q2047188001ND
2021-03-10Q21063760021.10 ppb
2021-06-15Q21156000041.000 ppb
2021-09-15Q21253210022.70 ppb
2021-10-27Q2130286002ND
2022-01-20Q2202093009ND
2022-04-12Q2211205003ND
2022-07-12Q2219477001ND
2022-10-05Q2230106001ND
2023-03-06Q23086890061.60 ppb
2023-05-22Q23190790022.60 ppb
2023-08-29Q2337350001ND
2023-10-31Q2346588002ND