Know Your Environment. Protect Your Health.

Monochloroacetic acid

Woodinville Water 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.

 

76

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.231 ppb162ND - 1.95 ppb
20190.195 ppb121ND - 2.34 ppb
2020N/A00N/A
20210.541 ppb165ND - 1.92 ppb
20220.299 ppb163ND - 1.66 ppb
20230.931 ppb168ND - 2.26 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
2018-03-15ND
2018-03-15ND
2018-03-15ND
2018-03-15ND
2018-06-14ND
2018-06-141.74 ppb
2018-06-14ND
2018-06-14ND
2018-09-131.95 ppb
2018-09-13ND
2018-09-13ND
2018-09-13ND
2018-12-12ND
2018-12-12ND
2018-12-12ND
2018-12-12ND
2019-03-18ND
2019-03-18ND
2019-03-18ND
2019-03-18ND
2019-06-12ND
2019-06-12ND
2019-06-12ND
2019-06-12ND
2019-09-10ND
2019-09-102.34 ppb
2019-12-11ND
2019-12-11ND
2021-03-1040889441.78 ppb
2021-03-104088947ND
2021-03-104088946ND
2021-03-104088945ND
2021-06-104130740ND
2021-06-104130738ND
2021-06-104130739ND
2021-06-104130741ND
2021-09-084172336ND
2021-09-084172333ND
2021-09-0841723341.67 ppb
2021-09-0841723351.78 ppb
2021-12-084215915ND
2021-12-0842159131.92 ppb
2021-12-084215912ND
2021-12-0842159141.50 ppb
2022-03-094258142ND
2022-03-0942581451.57 ppb
2022-03-0942581431.55 ppb
2022-03-094258144ND
2022-06-064294998ND
2022-06-064294996ND
2022-06-0642949971.66 ppb
2022-06-064294999ND
2022-09-084343517ND
2022-09-084343519ND
2022-09-084343518ND
2022-09-084343516ND
2022-12-144385522ND
2022-12-144385521ND
2022-12-144385520ND
2022-12-144385523ND
2023-03-074426464ND
2023-03-074426466ND
2023-03-074426465ND
2023-03-074426467ND
2023-06-084468606ND
2023-06-084468605ND
2023-06-084468604ND
2023-06-084468603ND
2023-09-0545144621.67 ppb
2023-09-0545144611.60 ppb
2023-09-0545144591.84 ppb
2023-09-0545144601.95 ppb
2023-12-0445569642.26 ppb
2023-12-0445569611.86 ppb
2023-12-0445569622.17 ppb
2023-12-0445569631.55 ppb