Know Your Environment. Protect Your Health.

Monochloroacetic acid

Duvall City Of

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
20180.404 ppb82ND - 1.70 ppb
20190.204 ppb81ND - 1.63 ppb
2020N/A00N/A
20211.51 ppb86ND - 2.30 ppb
20220.453 ppb82ND - 2.11 ppb
20230.834 ppb84ND - 1.71 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
2018-02-09ND
2018-02-09ND
2018-05-11ND
2018-05-11ND
2018-08-101.53 ppb
2018-08-10ND
2018-11-09ND
2018-11-091.70 ppb
2019-02-22ND
2019-02-22ND
2019-05-101.63 ppb
2019-05-10ND
2019-08-09ND
2019-08-09ND
2019-11-08ND
2019-11-08ND
2021-02-1240785982.30 ppb
2021-02-1240785991.64 ppb
2021-05-1441210101.80 ppb
2021-05-1441210112.08 ppb
2021-08-134172284ND
2021-08-134172283ND
2021-11-1242061761.99 ppb
2021-11-1242061772.28 ppb
2022-02-114244606ND
2022-02-114244605ND
2022-05-1342848031.51 ppb
2022-05-1342848022.11 ppb
2022-08-144330582ND
2022-08-174330583ND
2022-11-164374329ND
2022-11-164374328ND
2023-02-104412797ND
2023-02-104412798ND
2023-05-124452262ND
2023-05-1244522631.65 ppb
2023-08-114499163ND
2023-08-1144991621.62 ppb
2023-11-0145482581.71 ppb
2023-11-0145482571.69 ppb