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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Troy

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

 

82

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
20150.131 ppb161ND - 2.10 ppb
2016ND160ND
2017ND160ND
2018ND160ND
2019ND20ND

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
2014-03-1125418502ND
2014-03-1125418501ND
2014-03-1125418503ND
2014-03-1125418504ND
2014-06-1126070201ND
2014-06-1126420301ND
2014-06-1126420201ND
2014-06-1126420401ND
2014-09-0827042301ND
2014-09-0827042201ND
2014-09-0827042401ND
2014-09-0827042101ND
2014-12-1128020301ND
2014-12-1128020101ND
2014-12-1128020001ND
2014-12-1128020201ND
2015-03-1128392801ND
2015-03-1128392901ND
2015-03-1128392701ND
2015-03-1128392601ND
2015-06-0929241501ND
2015-06-0929241201ND
2015-06-0929241301ND
2015-06-0929241401ND
2015-09-1030187101ND
2015-09-1030187201ND
2015-09-1030187001ND
2015-09-1030187301ND
2015-12-09307737012.10 ppb
2015-12-0930773601ND
2015-12-0930773401ND
2015-12-0930773501ND
2016-03-0731439601ND
2016-03-0731439701ND
2016-03-0731439401ND
2016-03-0731439501ND
2016-06-0932165601ND
2016-06-0932165301ND
2016-06-0932165401ND
2016-06-0932165501ND
2016-09-1233196201ND
2016-09-1233196101ND
2016-09-1233196301ND
2016-09-1233196001ND
2016-12-0533981501ND
2016-12-0533981701ND
2016-12-0533981401ND
2016-12-0533981601ND
2017-03-0234865901ND
2017-03-0234865701ND
2017-03-0234866001ND
2017-03-0234865801ND
2017-06-0735929901ND
2017-06-0735929601ND
2017-06-0735929701ND
2017-06-0735929801ND
2017-09-0636966201ND
2017-09-0636966301ND
2017-09-0636966001ND
2017-09-0636966101ND
2017-12-0437960601ND
2017-12-0437960701ND
2017-12-0437960801ND
2017-12-0437960501ND
2018-03-0638900501ND
2018-03-0638900401ND
2018-03-0638900301ND
2018-03-0638900201ND
2018-06-0639920701ND
2018-06-0639920801ND
2018-06-0639920901ND
2018-06-0639921001ND
2018-09-0441041901ND
2018-09-0441042001ND
2018-09-0441042101ND
2018-09-0441042201ND
2018-12-0442260801ND
2018-12-0442260901ND
2018-12-0442260701ND
2018-12-0442260601ND
2019-09-0446634701ND
2019-09-0446634601ND