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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

St. Charles

Monobromoacetic 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
2013N/A00N/A
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND160ND
20190.583 ppb162ND - 7.78 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 25 ppb

The EWG Health Guideline of 25 ppb for monobromoacetic 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 muscular degeneration.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-24AC18230ND
2014-02-24AC18231ND
2014-02-24AC18232ND
2014-02-24AC18233ND
2014-05-28AC23238ND
2014-05-28AC23239ND
2014-05-28AC23240ND
2014-05-28AC23241ND
2014-09-15AC33463ND
2014-09-15AC33460ND
2014-09-15AC33461ND
2014-09-15AC33462ND
2014-11-25AC38287ND
2014-11-25AC38289ND
2014-11-25AC38288ND
2014-11-25AC38286ND
2015-02-24AC42013ND
2015-02-24AC42015ND
2015-02-24AC42014ND
2015-02-24AC42016ND
2015-05-27AC46578ND
2015-05-27AC46577ND
2015-05-27AC46576ND
2015-05-27AC46575ND
2015-09-02AC57558ND
2015-09-02AC57560ND
2015-09-02AC57559ND
2015-09-02AC57557ND
2015-11-30AC62844ND
2015-11-30AC62842ND
2015-11-30AC62843ND
2015-11-30AC62841ND
2016-03-02AC66389ND
2016-03-02AC66388ND
2016-03-02AC66390ND
2016-03-02AC66387ND
2016-06-07AC72084ND
2016-06-07AC72082ND
2016-06-07AC72083ND
2016-06-07AC72081ND
2016-08-25AC81727ND
2016-08-25AC81726ND
2016-08-25AC81729ND
2016-08-25AC81728ND
2016-11-07AC86983ND
2016-11-07AC86981ND
2016-11-07AC86982ND
2016-11-07AC86980ND
2017-02-24AC90830ND
2017-02-24AC90832ND
2017-02-24AC90833ND
2017-02-24AC90831ND
2017-05-25AC95809ND
2017-05-25AC95807ND
2017-05-25AC95808ND
2017-05-25AC95810ND
2017-09-07AD03560ND
2017-09-07AD03561ND
2017-09-07AD03563ND
2017-09-07AD03562ND
2017-11-27AD09520ND
2017-11-27AD09521ND
2017-11-27AD09522ND
2017-11-27AD09523ND
2018-03-05AD14306ND
2018-03-05AD14308ND
2018-03-05AD14309ND
2018-03-05AD14307ND
2018-06-04AD20538ND
2018-06-04AD20540ND
2018-06-04AD20539ND
2018-06-04AD20537ND
2018-08-28AD31349ND
2018-08-28AD31350ND
2018-08-28AD31351ND
2018-08-28AD31352ND
2018-12-04AD35748ND
2018-12-04AD35747ND
2018-12-04AD35749ND
2018-12-04AD35750ND
2019-02-25AD39417ND
2019-02-25AD39415ND
2019-02-25AD39416ND
2019-02-25AD39418ND
2019-05-21AD47493ND
2019-05-21AD47496ND
2019-05-21AD474951.55 ppb
2019-05-21AD47494ND
2019-09-05AD54084ND
2019-09-05AD540857.78 ppb
2019-09-05AD54086ND
2019-09-05AD54087ND
2019-12-18AD58129ND
2019-12-18AD58130ND
2019-12-18AD58131ND
2019-12-18AD58132ND