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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

North Monroe Et Al Water System

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

 

128

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
20171.43 ppb1612ND - 2.70 ppb
20181.93 ppb3210ND - 9.60 ppb
20193.56 ppb32321.000 ppb - 5.80 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
2014-02-181278955ND
2014-02-181278956ND
2014-02-181278955ND
2014-02-181278956ND
2014-05-151302288ND
2014-05-151302289ND
2014-05-151302288ND
2014-05-151302289ND
2014-08-211328661ND
2014-08-211328661ND
2014-08-281329975ND
2014-08-281329975ND
2014-11-041347528ND
2014-11-041347529ND
2014-11-041347528ND
2014-11-041347529ND
2015-02-261375305ND
2015-02-261375306ND
2015-02-261375305ND
2015-02-261375306ND
2015-05-121394741ND
2015-05-121394742ND
2015-05-121394741ND
2015-05-121394742ND
2015-08-031415885ND
2015-08-031415886ND
2015-08-031415885ND
2015-08-031415886ND
2015-11-191446114ND
2015-11-191446115ND
2015-11-191446114ND
2015-11-191446115ND
2016-02-111467325ND
2016-02-111467326ND
2016-02-111467325ND
2016-02-111467326ND
2016-05-051489043ND
2016-05-051489044ND
2016-05-051489043ND
2016-05-051489044ND
2016-08-041513582ND
2016-08-041513583ND
2016-08-041513582ND
2016-08-041513583ND
2016-11-011537951ND
2016-11-011537952ND
2016-11-011537951ND
2016-11-011537952ND
2017-02-01352925820132.50 ppb
2017-02-01352925820142.30 ppb
2017-02-01352925820132.50 ppb
2017-02-01352925820142.30 ppb
2017-05-04353106180032.70 ppb
2017-05-04353106180042.00 ppb
2017-05-04353106180032.70 ppb
2017-05-04353106180042.00 ppb
2017-08-0235328002003ND
2017-08-0235328002004ND
2017-08-0235328002003ND
2017-08-0235328002004ND
2017-11-03353461670011.000 ppb
2017-11-03353461670020.900 ppb
2017-11-03353461670011.000 ppb
2017-11-03353461670020.900 ppb
2018-02-1235373923001ND
2018-02-1235373923002ND
2018-02-1235373923003ND
2018-02-1235373923004ND
2018-02-1235373923001ND
2018-02-1235373923002ND
2018-02-1235373923003ND
2018-02-1235373923004ND
2018-05-0335390247001ND
2018-05-0335390247002ND
2018-05-0335390247003ND
2018-05-03353902470044.30 ppb
2018-05-0335390247001ND
2018-05-0335390247002ND
2018-05-0335390247003ND
2018-05-03353902470044.30 ppb
2018-08-01354085420019.60 ppb
2018-08-01354085420025.90 ppb
2018-08-01354085420035.40 ppb
2018-08-01354085420045.70 ppb
2018-08-01354085420019.60 ppb
2018-08-01354085420025.90 ppb
2018-08-01354085420035.40 ppb
2018-08-01354085420045.70 ppb
2018-11-0835429974001ND
2018-11-0835429974002ND
2018-11-0835429974003ND
2018-11-0835429974004ND
2018-11-0835429974001ND
2018-11-0835429974002ND
2018-11-0835429974003ND
2018-11-0835429974004ND
2019-02-13354485350014.90 ppb
2019-02-13354485350023.60 ppb
2019-02-13354485350034.60 ppb
2019-02-13354485350044.40 ppb
2019-02-13354485350014.90 ppb
2019-02-13354485350023.60 ppb
2019-02-13354485350034.60 ppb
2019-02-13354485350044.40 ppb
2019-05-02354658570015.00 ppb
2019-05-02354658570025.10 ppb
2019-05-02354658570034.90 ppb
2019-05-02354658570045.80 ppb
2019-05-02354658570015.00 ppb
2019-05-02354658570025.10 ppb
2019-05-02354658570034.90 ppb
2019-05-02354658570045.80 ppb
2019-08-22354927340013.20 ppb
2019-08-22354927340022.80 ppb
2019-08-22354927340033.30 ppb
2019-08-22354927340043.00 ppb
2019-08-22354927340013.20 ppb
2019-08-22354927340022.80 ppb
2019-08-22354927340033.30 ppb
2019-08-22354927340043.00 ppb
2019-11-07355109620011.40 ppb
2019-11-07355109620021.70 ppb
2019-11-07355109620032.20 ppb
2019-11-07355109620041.000 ppb
2019-11-07355109620011.40 ppb
2019-11-07355109620021.70 ppb
2019-11-07355109620032.20 ppb
2019-11-07355109620041.000 ppb