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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Bryant Waterworks

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.588 ppb164ND - 3.00 ppb
20150.256 ppb162ND - 2.10 ppb
2016ND160ND
20170.131 ppb161ND - 2.10 ppb
20180.206 ppb161ND - 3.30 ppb
20190.806 ppb165ND - 3.00 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
2014-01-0814010001501ND
2014-01-0814010001701ND
2014-01-0814010001601ND
2014-01-0814010002401ND
2014-04-03140930088012.30 ppb
2014-04-0314093008101ND
2014-04-03140930083012.10 ppb
2014-04-03140930082012.00 ppb
2014-07-0814191002201ND
2014-07-0814191002101ND
2014-07-08141910013013.00 ppb
2014-07-0814191002301ND
2014-10-0814282004401ND
2014-10-0814282003501ND
2014-10-0814282003401ND
2014-10-0814282002901ND
2015-01-0715008016301ND
2015-01-0715008016401ND
2015-01-0715008016201ND
2015-01-0715008016501ND
2015-04-01150920092012.10 ppb
2015-04-0115092009101ND
2015-04-0115092009301ND
2015-04-01150920094012.00 ppb
2015-07-2315205005201ND
2015-07-2315205005101ND
2015-07-2315205004901ND
2015-07-2315205005001ND
2015-10-0515279000801ND
2015-10-0515279000601ND
2015-10-0515279000901ND
2015-10-0515279000701ND
2016-01-0816008014501ND
2016-01-0816008014301ND
2016-01-0816008014201ND
2016-01-0816008014401ND
2016-04-1916112006801ND
2016-04-1916112006701ND
2016-04-1916112006601ND
2016-04-1916112006901ND
2016-07-0516189002001ND
2016-07-0516189001901ND
2016-07-0516189001701ND
2016-07-0516189001801ND
2016-10-0416280014601ND
2016-10-0416280014701ND
2016-10-0416280014801ND
2016-10-0416280014901ND
2017-01-0417005007701ND
2017-01-0417005008001ND
2017-01-0417005007901ND
2017-01-0417005007801ND
2017-04-0417096002101ND
2017-04-0417096002001ND
2017-04-0417096001901ND
2017-04-0417096001801ND
2017-07-0317187012901ND
2017-07-03171870126012.10 ppb
2017-07-0317187012701ND
2017-07-0317187012801ND
2017-10-0217278014901ND
2017-10-0217278014601ND
2017-10-0217278014801ND
2017-10-0217278014701ND
2018-01-0218004001101ND
2018-01-0218004001201ND
2018-01-0218004001001ND
2018-01-0218004001301ND
2018-04-0218095015601ND
2018-04-0218095015401ND
2018-04-0218095015701ND
2018-04-0218095015501ND
2018-07-0218186018901ND
2018-08-0718220002701ND
2018-08-0718220002901ND
2018-08-0718220002801ND
2018-10-0218277011401ND
2018-10-02182770111013.30 ppb
2018-10-0218277011301ND
2018-10-0218277011201ND
2019-01-1019011001802ND
2019-01-1019011001602ND
2019-01-1019011001702ND
2019-01-1019011001502ND
2019-04-01190940157012.90 ppb
2019-04-0119094015801ND
2019-04-01190940160013.00 ppb
2019-04-01190940159012.20 ppb
2019-07-0919192011801ND
2019-07-0919192011401ND
2019-07-0919192011901ND
2019-07-09191920117012.80 ppb
2019-10-0119276007401ND
2019-10-01192760077012.00 ppb
2019-12-0919345007101ND
2019-12-0919345007001ND