Know Your Environment. Protect Your Health.

Monochloroacetic acid

North Whidbey Water District

NOTE: North Whidbey Water District purchases water from City of Oak Harbor which is required to test for monochloroacetic acid. Sample information shown below was taken by City of Oak Harbor.

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020N/A00N/A
2021ND10ND
2022ND80ND
2023ND70ND

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

NOTE: North Whidbey Water District purchases water from City of Oak Harbor which is required to test for monochloroacetic acid. Sample information shown below was taken by City of Oak Harbor.

Date Lab ID Result
2018-03-08ND
2018-03-08ND
2018-06-19ND
2018-06-19ND
2018-09-18ND
2018-09-18ND
2018-12-11ND
2018-12-11ND
2019-03-19ND
2019-03-19ND
2019-06-18ND
2019-06-18ND
2019-09-10ND
2019-09-10ND
2019-12-26ND
2019-12-26ND
2021-03-164090644ND
2021-03-164090642ND
2021-06-104163724ND
2021-06-104163721ND
2021-09-094174207ND
2021-09-094174209ND
2021-12-144220431ND
2021-12-144220434ND
2022-03-084256709ND
2022-03-084256711ND
2022-06-094302589ND
2022-06-094302587ND
2022-09-134365783ND
2022-09-134365777ND
2022-12-154397576ND
2022-12-154397578ND
2023-03-214432438ND
2023-03-214432436ND
2023-06-134468872ND
2023-06-134468867ND
2023-09-144523184ND
2023-09-144523179ND
2023-12-124562349ND