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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Alexandria 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

 

60

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND320ND
2015ND40ND
2016ND80ND
2017ND60ND
2018ND60ND
20190.500 ppb42ND - 1.000 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
2014-02-051275657ND
2014-02-051275655ND
2014-02-051275656ND
2014-02-051275657ND
2014-02-051275658ND
2014-02-051275656ND
2014-02-051275655ND
2014-02-051275658ND
2014-05-061299041ND
2014-05-061299039ND
2014-05-061299040ND
2014-05-061299041ND
2014-05-061299042ND
2014-05-061299040ND
2014-05-061299039ND
2014-05-061299042ND
2014-08-041322733ND
2014-08-041322734ND
2014-08-041322735ND
2014-08-041322736ND
2014-08-041322733ND
2014-08-041322734ND
2014-08-041322735ND
2014-08-041322736ND
2014-08-1835151018001ND
2014-08-1835151018001ND
2014-08-1835151018002ND
2014-08-1835151018002ND
2014-11-041347208ND
2014-11-041347209ND
2014-11-041347209ND
2014-11-041347208ND
2015-08-111418153ND
2015-08-111418153ND
2015-11-051441992ND
2015-11-051441992ND
2016-08-11680-128769-1ND
2016-08-11680-128769-2ND
2016-08-11680-128769-2ND
2016-08-11680-128769-1ND
2016-11-08680-131994-1ND
2016-11-08680-131994-2ND
2016-11-08680-131994-1ND
2016-11-08680-131994-2ND
2017-08-1735331284001ND
2017-08-1735331284001ND
2017-11-1635349534002ND
2017-11-1635349534001ND
2017-11-1635349534001ND
2017-11-1635349534002ND
2018-08-3035414807001ND
2018-08-3035414807001ND
2018-11-0235428216002ND
2018-11-0235428216001ND
2018-11-0235428216001ND
2018-11-0235428216002ND
2019-08-01354868030011.000 ppb
2019-08-01354868030011.000 ppb
2019-11-0735510931001ND
2019-11-0735510931001ND