Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Monochloroacetic acid

Waukesha Water Utility

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND70ND
20130.250 ppb21ND - 0.500 ppb
2014ND20ND
2015ND20ND
2016ND20ND
2017ND30ND

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
2012-08-02676205ND
2012-08-02676204ND
2012-08-02676200ND
2012-08-02676206ND
2012-08-02676203ND
2012-08-02676202ND
2012-08-02676201ND
2013-08-27740151ND
2013-08-277401520.500 ppb
2014-08-12810525ND
2014-08-12810526ND
2015-08-31879612ND
2015-08-31879611ND
2016-07-14933377ND
2016-07-14933376ND
2017-07-031707308-001BND
2017-07-031707308-002BND
2017-10-111023934ND