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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

IL American-Streator

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

 

99

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
20142.80 ppb1610ND - 9.30 ppb
20151.25 ppb164ND - 9.40 ppb
20160.256 ppb161ND - 4.10 ppb
20170.882 ppb175ND - 3.50 ppb
20180.565 ppb174ND - 2.90 ppb
20190.724 ppb175ND - 3.30 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
2014-01-14243838014.80 ppb
2014-01-1424383901ND
2014-01-1424384001ND
2014-01-1424384101ND
2014-04-07251710012.20 ppb
2014-04-07251711012.30 ppb
2014-04-07251712012.90 ppb
2014-04-07251713012.40 ppb
2014-07-07263615015.20 ppb
2014-07-07263616018.20 ppb
2014-07-07263618015.50 ppb
2014-07-07263617019.30 ppb
2014-10-1427175401ND
2014-10-1427175201ND
2014-10-14271753012.00 ppb
2014-10-1427175101ND
2015-01-1327922801ND
2015-01-1327923101ND
2015-01-1327922901ND
2015-01-1327923001ND
2015-04-07286031019.40 ppb
2015-04-07286030014.00 ppb
2015-04-07286029013.40 ppb
2015-04-07286028013.20 ppb
2015-07-1429627201ND
2015-07-1429627101ND
2015-07-1429627301ND
2015-07-1429627401ND
2015-10-0630397001ND
2015-10-0630396701ND
2015-10-0630396901ND
2015-10-0630396801ND
2016-01-1231033401ND
2016-01-1231033701ND
2016-01-1231033601ND
2016-01-1231033501ND
2016-04-1231720501ND
2016-04-1231720401ND
2016-04-1231720301ND
2016-04-1231720201ND
2016-07-1132627401ND
2016-07-1132627101ND
2016-07-1132627301ND
2016-07-1132627201ND
2016-10-1133583801ND
2016-10-1133584101ND
2016-10-11335840014.10 ppb
2016-10-1133820901ND
2017-01-1034214701ND
2017-01-1034214901ND
2017-01-1034215001ND
2017-01-1034214801ND
2017-04-1135216701ND
2017-04-1135217001ND
2017-04-1135216901ND
2017-04-1135216801ND
2017-07-17363677013.10 ppb
2017-07-17363678013.10 ppb
2017-07-1736367601ND
2017-07-17363674012.00 ppb
2017-07-1736367501ND
2017-10-10373046013.50 ppb
2017-10-10373045013.30 ppb
2017-10-1037304701ND
2017-10-1037304401ND
2018-01-0938126801ND
2018-01-0938126701ND
2018-01-0938126601ND
2018-01-0938126501ND
2018-04-03391196012.20 ppb
2018-04-03391195012.30 ppb
2018-04-03391194012.90 ppb
2018-04-0339119301ND
2018-07-0940370501ND
2018-07-0940370401ND
2018-07-0940370301ND
2018-07-0940370201ND
2018-07-0940370101ND
2018-10-0241341801ND
2018-10-02413419012.20 ppb
2018-10-0241342001ND
2018-10-0241342101ND
2019-01-08425826012.20 ppb
2019-01-08425827013.30 ppb
2019-01-08425829012.40 ppb
2019-01-08425830012.20 ppb
2019-04-0243825901ND
2019-04-02438257012.20 ppb
2019-04-0243825601ND
2019-04-0343825801ND
2019-07-0945122701ND
2019-07-0945123001ND
2019-07-0945122901ND
2019-07-0945122801ND
2019-07-0945122601ND
2019-10-0746669401ND
2019-10-0746669301ND
2019-10-0746669201ND
2019-10-0746669101ND