Know Your Environment. Protect Your Health.

Monochloroacetic acid

Port Angeles Composite

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.

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND80ND
2020N/A00N/A
2021ND80ND
2022ND80ND
2023ND80ND

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
2018-02-14ND
2018-02-14ND
2018-05-16ND
2018-05-16ND
2018-08-17ND
2018-08-20ND
2018-11-14ND
2018-11-14ND
2019-02-19ND
2019-02-19ND
2019-05-09ND
2019-05-09ND
2019-08-19ND
2019-08-19ND
2019-11-20ND
2019-11-20ND
2021-02-234081108ND
2021-02-234081146ND
2021-05-244120061ND
2021-05-244120063ND
2021-08-244166228ND
2021-08-254166226ND
2021-11-234220401ND
2021-11-234220399ND
2022-02-244247461ND
2022-02-244247475ND
2022-05-094302609ND
2022-06-304309417ND
2022-08-224339638ND
2022-08-224339643ND
2022-11-284389316ND
2022-11-284389313ND
2023-02-064415132ND
2023-02-064415130ND
2023-05-094457478ND
2023-05-094457480ND
2023-08-144506969ND
2023-08-144506967ND
2023-11-084547326ND
2023-11-084547324ND