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EWG's Tap Water Database — 2019 UPDATE

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Monochloroacetic acid

Glendale Waterworks

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.

 

44

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.20 ppb43ND - 2.10 ppb
2013ND40ND
2014ND160ND
20150.323 ppb82ND - 1.70 ppb
20160.108 ppb82ND - 0.430 ppb
20170.338 ppb81ND - 2.70 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
2013-12-03761155ND
2013-12-03761157ND
2013-12-03761156ND
2013-12-03761161ND
2014-03-06773486ND
2014-03-06773485ND
2014-03-06773484ND
2014-03-06773482ND
2014-06-03794126ND
2014-06-03794125ND
2014-06-03794124ND
2014-06-03794127ND
2014-09-02814998ND
2014-09-02814997ND
2014-09-02814996ND
2014-09-02814995ND
2014-12-02833584ND
2014-12-02833586ND
2014-12-02833583ND
2014-12-02833585ND
2015-03-038460271.70 ppb
2015-03-03846028ND
2015-06-03863510ND
2015-06-03863509ND
2015-09-01880147ND
2015-09-018801460.880 ppb
2015-12-02896183ND
2015-12-02896184ND
2016-03-07908346ND
2016-03-07908345ND
2016-06-019240040.430 ppb
2016-06-019240050.430 ppb
2016-08-30942567ND
2016-08-30942566ND
2016-11-30962300ND
2016-11-30962301ND
2017-03-06976167ND
2017-03-06976168ND
2017-06-05995412ND
2017-06-05995411ND
2017-08-301014940ND
2017-08-3010149392.70 ppb
2017-11-291031297ND
2017-11-291031298ND