Know Your Environment. Protect Your Health.

Monochloroacetic acid

Mukilteo Water & Wastewater District

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.

 

81

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND160ND
20191.97 ppb1612ND - 3.20 ppb
2020N/A00N/A
20211.51 ppb169ND - 3.50 ppb
20221.01 ppb166ND - 3.40 ppb
20230.871 ppb175ND - 3.30 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
2018-03-06ND
2018-03-06ND
2018-03-06ND
2018-03-06ND
2018-05-31ND
2018-05-31ND
2018-05-31ND
2018-05-31ND
2018-08-20ND
2018-08-20ND
2018-08-20ND
2018-08-30ND
2018-11-13ND
2018-11-13ND
2018-11-13ND
2018-11-13ND
2019-02-132.30 ppb
2019-02-13ND
2019-02-132.30 ppb
2019-03-25ND
2019-05-092.60 ppb
2019-05-092.60 ppb
2019-05-092.20 ppb
2019-05-093.00 ppb
2019-08-082.60 ppb
2019-08-082.80 ppb
2019-08-082.70 ppb
2019-08-08ND
2019-11-143.00 ppb
2019-11-14ND
2019-11-143.20 ppb
2019-11-142.20 ppb
2021-02-0940758022.30 ppb
2021-02-094075804ND
2021-02-094075800ND
2021-02-0940758062.40 ppb
2021-05-1741189403.00 ppb
2021-05-1741189342.80 ppb
2021-05-1741189202.20 ppb
2021-05-1741189462.50 ppb
2021-08-1841662483.50 ppb
2021-08-184166250ND
2021-08-1841662463.20 ppb
2021-08-1841662522.20 ppb
2021-11-234210601ND
2021-11-234210603ND
2021-11-234210599ND
2021-11-234210597ND
2022-02-1642473452.80 ppb
2022-02-164247342ND
2022-02-1642473502.30 ppb
2022-02-164247355ND
2022-05-254302629ND
2022-05-254302635ND
2022-05-254302631ND
2022-05-254302633ND
2022-08-2343351533.30 ppb
2022-08-2343351573.40 ppb
2022-08-234335155ND
2022-08-234335151ND
2022-11-104381825ND
2022-11-1043818272.00 ppb
2022-11-104381823ND
2022-11-1043818302.30 ppb
2023-02-274424366ND
2023-02-274424374ND
2023-02-274424370ND
2023-02-274424380ND
2023-05-224465914ND
2023-05-224465916ND
2023-05-224465918ND
2023-05-224547315ND
2023-05-224465912ND
2023-08-2845464803.00 ppb
2023-08-2845464782.90 ppb
2023-08-284546523ND
2023-08-2845465182.90 ppb
2023-11-0645465622.70 ppb
2023-11-064546571ND
2023-11-0645465583.30 ppb
2023-11-064546550ND