Know Your Environment. Protect Your Health.

Monochloroacetic acid

Tamoshan

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
20183.70 ppb31ND - 11.1 ppb
2019ND60ND
2020N/A00N/A
20212.06 ppb43ND - 3.42 ppb
20221.11 ppb42ND - 2.41 ppb
2023ND40ND

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
2018-03-30ND
2018-06-1111.1 ppb
2018-09-24ND
2019-03-05ND
2019-03-21ND
2019-05-09ND
2019-08-08ND
2019-08-20ND
2019-12-20ND
2021-03-3040963163.42 ppb
2021-06-174130271ND
2021-09-1541763842.52 ppb
2021-12-0242141142.31 ppb
2022-03-0842574352.41 ppb
2022-05-1942855802.04 ppb
2022-09-294374596ND
2022-12-074390190ND
2023-02-024411892ND
2023-04-134444306ND
2023-08-024504593ND
2023-11-014554170ND