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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Country Estates Water System North

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

 

74

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND80ND
2016ND120ND
20170.744 ppb186ND - 3.00 ppb
2018ND160ND
2019ND160ND

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
2014-08-121325220ND
2014-08-121325219ND
2014-08-121325220ND
2014-08-121325219ND
2015-08-261422239ND
2015-08-261422240ND
2015-08-261422240ND
2015-08-261422239ND
2015-11-301447682ND
2015-11-301447683ND
2015-11-301447683ND
2015-11-301447682ND
2016-05-301496263ND
2016-05-301496264ND
2016-05-301496264ND
2016-05-301496263ND
2016-08-181518355ND
2016-08-181518356ND
2016-08-181518356ND
2016-08-181518355ND
2016-11-161542214ND
2016-11-161542215ND
2016-11-161542215ND
2016-11-161542214ND
2017-02-0135292582011ND
2017-02-0135292582012ND
2017-02-0135292582012ND
2017-02-0135292582011ND
2017-05-0535310618014ND
2017-05-05353106180132.10 ppb
2017-05-05353106180132.10 ppb
2017-05-0535310618014ND
2017-08-0235328002008ND
2017-08-0235328002007ND
2017-08-0235328002007ND
2017-08-0235328002008ND
2017-11-02353461640011.60 ppb
2017-11-02353461640023.00 ppb
2017-11-02353461640011.60 ppb
2017-11-02353461640023.00 ppb
2017-12-0535361476001ND
2017-12-0535361476001ND
2018-02-0235372038002ND
2018-02-0235372038001ND
2018-02-0235372038001ND
2018-02-0235372038002ND
2018-05-1035391941001ND
2018-05-1035391941002ND
2018-05-1035391941001ND
2018-05-1035391941002ND
2018-08-0235408593002ND
2018-08-0235408593001ND
2018-08-0235408593001ND
2018-08-0235408593002ND
2018-11-0935430199001ND
2018-11-0935430199002ND
2018-11-0935430199001ND
2018-11-0935430199002ND
2019-02-0135445744002ND
2019-02-0135445744001ND
2019-02-0135445744001ND
2019-02-0135445744002ND
2019-05-1535469368002ND
2019-05-1535469368002ND
2019-05-1535469368001ND
2019-05-1535469368001ND
2019-08-0235487233002ND
2019-08-0235487233001ND
2019-08-0235487233001ND
2019-08-0235487233002ND
2019-11-1435512553001ND
2019-11-1435512553002ND
2019-11-1435512553001ND
2019-11-1435512553002ND