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EWG's Tap Water Database — 2019 UPDATE

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Monochloroacetic acid

Millersview-doole Water Supply Corporation

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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND20ND
2014ND80ND
20151.66 ppb84ND - 5.10 ppb
20161.79 ppb82ND - 9.50 ppb
2017ND80ND

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
2012-05-22AB90801ND
2012-05-22AB90802ND
2012-05-22AB90799ND
2012-05-22AB90800ND
2013-11-21Q1314443002ND
2013-11-21Q1314443001ND
2014-02-27AC45052ND
2014-02-27AC45054ND
2014-04-22AC51368ND
2014-04-22AC51369ND
2014-09-17AC67312ND
2014-09-17AC67334ND
2014-11-18AC72457ND
2014-11-18AC72456ND
2015-02-03AC78993ND
2015-02-03AC79002ND
2015-05-19AC92554ND
2015-05-19AC92553ND
2015-09-28AD088733.40 ppb
2015-09-28AD088722.60 ppb
2015-11-03AD123785.10 ppb
2015-11-03AD123802.20 ppb
2016-02-17AD24282ND
2016-02-17AD24254ND
2016-05-18AD37247ND
2016-05-18AD37246ND
2016-07-21AD452134.80 ppb
2016-09-14AD496229.50 ppb
2016-11-30AD59814ND
2016-11-30AD59815ND
2017-02-23Q1707824002ND
2017-02-23Q1707824001ND
2017-05-09Q1719084002ND
2017-05-09Q1719084001ND
2017-07-26Q1731196002ND
2017-07-26Q1731196001ND
2017-11-01Q1756357002ND
2017-11-01Q1756357001ND