Know Your Environment. Protect Your Health.

Monochloroacetic acid

Aqua Pa Clarendon

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
2018ND10ND
20192.70 ppb112.70 ppb
20201.30 ppb42ND - 3.00 ppb
20210.750 ppb82ND - 3.00 ppb
20220.613 ppb83ND - 2.20 ppb
2023ND20ND

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
2018-08-08AF92281ND
2019-08-13AG280312.70 ppb
2020-08-11ND
2020-08-112.20 ppb
2020-11-103.00 ppb
2020-11-10ND
2021-02-09ND
2021-02-09ND
2021-05-11ND
2021-05-11ND
2021-08-12ND
2021-08-12ND
2021-11-093.00 ppb
2021-11-093.00 ppb
2022-02-081.30 ppb
2022-02-081.40 ppb
2022-05-10ND
2022-05-10ND
2022-08-102.20 ppb
2022-08-10ND
2022-11-10ND
2022-11-10ND
2023-08-09ND
2023-11-08ND