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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Woodland Acres Subdivision

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.

MORE ABOUT THIS CONTAMINANT

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND20ND
2015ND40ND
2016ND80ND
20170.338 ppb81ND - 2.70 ppb
2018ND60ND
20191.000 ppb21ND - 2.00 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against system toxicity.

ppb = parts per billion

All test results

Date Lab ID Result
2014-06-09AC56261ND
2014-06-09AC56299ND
2015-08-04AD02287ND
2015-08-04AD02315ND
2015-10-22AD11484ND
2015-10-22AD11482ND
2016-01-13AD17827ND
2016-01-13AD17831ND
2016-04-12AD32781ND
2016-04-12AD32774ND
2016-07-11AD43535ND
2016-07-11AD43530ND
2016-10-11AD52978ND
2016-10-11AD52972ND
2017-01-12AD64670ND
2017-01-12AD64674ND
2017-04-11AD79167ND
2017-04-11AD791662.70 ppb
2017-07-20AD90129ND
2017-07-20AD90130ND
2017-10-05AD99505ND
2017-10-05AD99506ND
2018-03-01AE16303ND
2018-03-01AE16302ND
2018-06-12AE29784ND
2018-06-12AE29788ND
2018-07-17AE33551ND
2018-07-17AE33554ND
2019-05-07AE65108ND
2019-05-07AE651122.00 ppb