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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Remington MUD 1

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
2014ND160ND
20150.931 ppb163ND - 6.60 ppb
20160.756 ppb163ND - 5.80 ppb
20170.481 ppb163ND - 3.30 ppb
20181.19 ppb164ND - 10.00 ppb
20190.681 ppb162ND - 7.40 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
2014-02-25AC44446ND
2014-02-25AC44444ND
2014-02-25AC44441ND
2014-02-25AC44445ND
2014-04-23AC51584ND
2014-04-23AC51581ND
2014-04-23AC51582ND
2014-04-23AC51583ND
2014-07-28AC61223ND
2014-07-28AC61237ND
2014-07-28AC61214ND
2014-07-28AC61205ND
2014-12-03AC73549ND
2014-12-03AC73547ND
2014-12-03AC73525ND
2014-12-03AC73548ND
2015-03-06AC83182ND
2015-03-06AC83181ND
2015-03-06AC83188ND
2015-03-06AC83187ND
2015-06-22AC96671ND
2015-06-22AC966792.10 ppb
2015-06-22AC967016.20 ppb
2015-06-22AC966936.60 ppb
2015-09-17AD07524ND
2015-09-17AD07567ND
2015-09-17AD07523ND
2015-09-17AD07525ND
2015-12-09AD16207ND
2015-12-09AD16199ND
2015-12-09AD16210ND
2015-12-09AD16208ND
2016-03-07AD27191ND
2016-03-07AD27207ND
2016-03-07AD27188ND
2016-03-07AD27189ND
2016-05-12AD36556ND
2016-05-12AD365603.80 ppb
2016-05-12AD36553ND
2016-05-12AD365552.50 ppb
2016-09-26AD510735.80 ppb
2016-09-26AD51104ND
2016-09-26AD51072ND
2016-09-26AD51074ND
2016-11-16AD58260ND
2016-11-16AD58261ND
2016-11-16AD58291ND
2016-11-16AD58263ND
2017-01-26AD67093ND
2017-01-26AD67101ND
2017-01-26AD67081ND
2017-01-26AD67094ND
2017-04-25AD80900ND
2017-04-25AD808992.20 ppb
2017-04-25AD80906ND
2017-04-25AD80907ND
2017-08-03AD92027ND
2017-08-03AD920282.20 ppb
2017-08-03AD92014ND
2017-08-03AD920333.30 ppb
2017-10-25AE02415ND
2017-10-25AE02411ND
2017-10-25AE02420ND
2017-10-25AE02412ND
2018-02-14AE13735ND
2018-02-14AE13741ND
2018-02-14AE13728ND
2018-02-14AE13724ND
2018-06-04AE28462ND
2018-06-04AE28461ND
2018-06-04AE28457ND
2018-06-04AE28455ND
2018-08-29AE38779ND
2018-08-29AE38783ND
2018-08-29AE38782ND
2018-08-29AE38778ND
2018-11-16AE464703.10 ppb
2018-11-16AE4647110.00 ppb
2018-11-16AE464732.70 ppb
2018-11-16AE464723.20 ppb
2019-02-21AE55293ND
2019-02-21AE55294ND
2019-02-21AE55291ND
2019-02-21AE55292ND
2019-05-01AE64293ND
2019-05-01AE64298ND
2019-05-01AE64297ND
2019-05-01AE64295ND
2019-09-06AE82457ND
2019-09-06AE82471ND
2019-09-06AE82456ND
2019-09-06AE82458ND
2019-10-14AE864567.40 ppb
2019-10-14AE864663.50 ppb
2019-10-14AE86467ND
2019-10-14AE86455ND