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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Columbia

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

 

144

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
2014ND240ND
2015ND240ND
2016ND240ND
2017ND240ND
2018ND240ND
2019ND240ND

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
2014-02-17AC18161ND
2014-02-17AC18162ND
2014-02-17AC18163ND
2014-02-17AC18164ND
2014-02-17AC18165ND
2014-02-17AC18166ND
2014-05-23AC23169ND
2014-05-23AC23170ND
2014-05-23AC23171ND
2014-05-23AC23172ND
2014-05-23AC23173ND
2014-05-23AC23174ND
2014-09-29AC33239ND
2014-09-29AC33240ND
2014-09-29AC33241ND
2014-09-29AC33242ND
2014-09-29AC33243ND
2014-09-29AC33244ND
2014-11-21AC38215ND
2014-11-21AC38216ND
2014-11-21AC38217ND
2014-11-21AC38218ND
2014-11-21AC38219ND
2014-11-21AC38220ND
2015-03-03AC41942ND
2015-03-03AC41943ND
2015-03-03AC41944ND
2015-03-03AC41947ND
2015-03-03AC41946ND
2015-03-03AC41945ND
2015-05-26AC46518ND
2015-05-26AC46519ND
2015-05-26AC46520ND
2015-05-26AC46522ND
2015-05-26AC46521ND
2015-05-26AC46523ND
2015-09-28AC57366ND
2015-09-28AC57367ND
2015-09-28AC57369ND
2015-09-28AC57368ND
2015-09-28AC57371ND
2015-09-28AC57370ND
2015-12-04AC62786ND
2015-12-04AC62787ND
2015-12-04AC62788ND
2015-12-04AC62784ND
2015-12-04AC62785ND
2015-12-04AC62789ND
2016-03-04AC66331ND
2016-03-04AC66332ND
2016-03-04AC66328ND
2016-03-04AC66329ND
2016-03-04AC66330ND
2016-03-04AC66333ND
2016-05-27AC72024ND
2016-05-27AC72025ND
2016-05-27AC72023ND
2016-05-27AC72022ND
2016-05-27AC72021ND
2016-05-27AC72026ND
2016-09-26AC81626ND
2016-09-26AC81625ND
2016-09-26AC81623ND
2016-09-26AC81627ND
2016-09-26AC81624ND
2016-09-26AC81622ND
2016-12-16AC86925ND
2016-12-16AC86921ND
2016-12-16AC86924ND
2016-12-16AC86923ND
2016-12-16AC86922ND
2016-12-16AC86920ND
2017-03-17AC90784ND
2017-03-17AC90785ND
2017-03-17AC90787ND
2017-03-17AC90786ND
2017-03-17AC90788ND
2017-03-17AC90789ND
2017-06-14AC95760ND
2017-06-14AC95759ND
2017-06-14AC95758ND
2017-06-14AC95757ND
2017-06-14AC95756ND
2017-06-14AC95755ND
2017-09-15AD03344ND
2017-09-15AD03345ND
2017-09-15AD03347ND
2017-09-15AD03348ND
2017-09-15AD03343ND
2017-09-15AD03346ND
2017-12-08AD09469ND
2017-12-08AD09473ND
2017-12-08AD09474ND
2017-12-08AD09471ND
2017-12-08AD09472ND
2017-12-08AD09470ND
2018-03-09AD14255ND
2018-03-09AD14256ND
2018-03-09AD14257ND
2018-03-09AD14258ND
2018-03-09AD14259ND
2018-03-09AD14260ND
2018-06-15AD20488ND
2018-06-15AD20489ND
2018-06-15AD20490ND
2018-06-15AD20491ND
2018-06-15AD20492ND
2018-06-15AD20493ND
2018-08-21AD31163ND
2018-08-21AD31164ND
2018-08-21AD31165ND
2018-08-21AD31166ND
2018-08-21AD31167ND
2018-08-21AD31168ND
2018-12-14AD35698ND
2018-12-14AD35699ND
2018-12-14AD35700ND
2018-12-14AD35701ND
2018-12-14AD35702ND
2018-12-14AD35703ND
2019-03-15AD39366ND
2019-03-15AD39367ND
2019-03-15AD39368ND
2019-03-15AD39369ND
2019-03-15AD39370ND
2019-03-15AD39371ND
2019-06-17AD47447ND
2019-06-17AD47448ND
2019-06-17AD47449ND
2019-06-17AD47450ND
2019-06-17AD47451ND
2019-06-17AD47452ND
2019-08-30AD53888ND
2019-08-30AD53889ND
2019-08-30AD53890ND
2019-08-30AD53891ND
2019-08-30AD53892ND
2019-08-30AD53893ND
2019-12-06AD58073ND
2019-12-06AD58074ND
2019-12-06AD58075ND
2019-12-06AD58076ND
2019-12-06AD58077ND
2019-12-06AD58078ND