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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

IL American-Chicago Suburban

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

 

76

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
20140.625 ppb82ND - 2.60 ppb
2015ND80ND
2016ND120ND
2017ND160ND
2018ND160ND
2019ND160ND

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
2014-01-0724387201ND
2014-01-0724387101ND
2014-04-0125174001ND
2014-04-0125174101ND
2014-07-01263646012.60 ppb
2014-07-01263647012.40 ppb
2014-10-0127177601ND
2014-10-0127177701ND
2015-01-0227926001ND
2015-01-0227925901ND
2015-04-0728605701ND
2015-04-0728605801ND
2015-07-0729630301ND
2015-07-0729630401ND
2015-10-0230399501ND
2015-10-0230399601ND
2016-01-0631035601ND
2016-01-0631035701ND
2016-04-0831722901ND
2016-04-0831723001ND
2016-07-0632629601ND
2016-07-0632629701ND
2016-07-2633157501ND
2016-07-2633157401ND
2016-10-0633585901ND
2016-10-0633758501ND
2016-10-0633758601ND
2016-10-0633585801ND
2017-01-0334219401ND
2017-01-0334219201ND
2017-01-0334219301ND
2017-01-0334219101ND
2017-04-0435220901ND
2017-04-0435221001ND
2017-04-0435220801ND
2017-04-0435220701ND
2017-07-1136373201ND
2017-07-1136373101ND
2017-07-1136373001ND
2017-07-1136373301ND
2017-10-0437306901ND
2017-10-0437307201ND
2017-10-0437307001ND
2017-10-0437307101ND
2018-01-0938131401ND
2018-01-0938131301ND
2018-01-0938131001ND
2018-01-0938130901ND
2018-04-0439122501ND
2018-04-0439122201ND
2018-04-0439122301ND
2018-04-0439122401ND
2018-07-0340373401ND
2018-07-0340373301ND
2018-07-0340373201ND
2018-07-0340373101ND
2018-10-0241344601ND
2018-10-0241344701ND
2018-10-0241344801ND
2018-10-0241344901ND
2019-01-0242585301ND
2019-01-0242585401ND
2019-01-0242585501ND
2019-01-0242585601ND
2019-04-1043828201ND
2019-04-1043828501ND
2019-04-1043828401ND
2019-04-1043828301ND
2019-07-1745125701ND
2019-07-1745125901ND
2019-07-1745125801ND
2019-07-1745125601ND
2019-10-0946672401ND
2019-10-0946672301ND
2019-10-0946672201ND
2019-10-0946672101ND