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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Grand Prairie Bayou 2 PWA

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

 

59

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND80ND
2016ND80ND
2017ND80ND
2018ND90ND
2019ND100ND

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
2014-01-1314016001901ND
2014-01-1314016002101ND
2014-01-1314016002201ND
2014-01-1314016002001ND
2014-04-0214093007701ND
2014-04-0214093007601ND
2014-04-0214093007501ND
2014-04-0214093007401ND
2014-07-0114184002201ND
2014-07-0114184002401ND
2014-07-0114184002501ND
2014-07-0114184002301ND
2014-10-0714282002001ND
2014-10-0714282002101ND
2014-10-0714282002601ND
2014-10-0714282002301ND
2015-01-0515008013601ND
2015-01-0515008013701ND
2015-04-0115092008001ND
2015-04-0115092007901ND
2015-07-2115204006001ND
2015-07-2115204005901ND
2015-10-0615281005901ND
2015-10-0615281006001ND
2016-01-0516008000801ND
2016-01-0516008000901ND
2016-04-0516098002101ND
2016-04-0516098002001ND
2016-07-0616189015901ND
2016-07-0616189015801ND
2016-10-0416279001501ND
2016-10-0416279001401ND
2017-01-0417005015501ND
2017-01-0417005015601ND
2017-04-0417095002301ND
2017-04-0417095002401ND
2017-07-0417187005701ND
2017-07-0417187005801ND
2017-10-0217278004101ND
2017-10-0217278004201ND
2018-01-0318004010701ND
2018-01-0318004010801ND
2018-04-0418095013401ND
2018-05-1618137002801ND
2018-05-1618137002701ND
2018-07-0418186015001ND
2018-07-0418186015101ND
2018-10-0118277000201ND
2018-10-0118277000101ND
2019-01-0919010015601ND
2019-01-0919010015501ND
2019-02-1219045004501ND
2019-02-1219045004601ND
2019-04-0219095000601ND
2019-04-0219095000701ND
2019-08-1919233006801ND
2019-08-1919233006901ND
2019-10-0219277006101ND
2019-10-0219277006301ND