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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Chicopee Water Department (MWRA)

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

 

160

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.182 ppb242ND - 2.31 ppb
2015ND320ND
2016ND320ND
2017ND320ND
2018ND320ND
2019ND320ND

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 Result
2015-03-02ND
2015-03-02ND
2015-03-02ND
2015-03-02ND
2015-03-02ND
2015-03-02ND
2015-03-02ND
2015-03-02ND
2015-06-01ND
2015-06-01ND
2015-06-01ND
2015-06-01ND
2015-06-01ND
2015-06-01ND
2015-06-01ND
2015-06-01ND
2015-08-31ND
2015-08-31ND
2015-08-31ND
2015-08-31ND
2015-08-31ND
2015-08-31ND
2015-08-31ND
2015-08-31ND
2015-11-30ND
2015-11-30ND
2015-11-30ND
2015-11-30ND
2015-12-01ND
2015-12-01ND
2015-12-01ND
2015-12-01ND
2016-03-01ND
2016-03-01ND
2016-03-01ND
2016-03-01ND
2016-03-02ND
2016-03-02ND
2016-03-02ND
2016-03-02ND
2016-06-06ND
2016-06-06ND
2016-06-06ND
2016-06-06ND
2016-06-06ND
2016-06-06ND
2016-06-06ND
2016-06-06ND
2016-09-07ND
2016-09-07ND
2016-09-07ND
2016-09-07ND
2016-09-07ND
2016-09-07ND
2016-09-07ND
2016-09-07ND
2016-12-05ND
2016-12-05ND
2016-12-05ND
2016-12-05ND
2016-12-05ND
2016-12-05ND
2016-12-05ND
2016-12-05ND
2017-03-06ND
2017-03-06ND
2017-03-06ND
2017-03-06ND
2017-03-06ND
2017-03-06ND
2017-03-06ND
2017-03-06ND
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-12-04ND
2017-12-04ND
2017-12-04ND
2017-12-04ND
2017-12-04ND
2017-12-04ND
2017-12-04ND
2017-12-04ND
2018-03-05ND
2018-03-05ND
2018-03-05ND
2018-03-05ND
2018-03-05ND
2018-03-05ND
2018-03-05ND
2018-03-05ND
2018-06-04ND
2018-06-04ND
2018-06-04ND
2018-06-04ND
2018-06-04ND
2018-06-04ND
2018-06-04ND
2018-06-04ND
2018-09-04ND
2018-09-04ND
2018-09-04ND
2018-09-04ND
2018-09-04ND
2018-09-04ND
2018-09-04ND
2018-09-04ND
2018-12-03ND
2018-12-03ND
2018-12-03ND
2018-12-03ND
2018-12-03ND
2018-12-03ND
2018-12-03ND
2018-12-03ND
2019-03-06ND
2019-03-06ND
2019-03-06ND
2019-03-06ND
2019-03-06ND
2019-03-06ND
2019-03-06ND
2019-03-06ND
2019-06-03ND
2019-06-03ND
2019-06-03ND
2019-06-03ND
2019-06-03ND
2019-06-03ND
2019-06-03ND
2019-06-03ND
2019-09-03ND
2019-09-03ND
2019-09-03ND
2019-09-03ND
2019-09-03ND
2019-09-03ND
2019-09-03ND
2019-09-03ND
2019-12-02ND
2019-12-02ND
2019-12-02ND
2019-12-02ND
2019-12-02ND
2019-12-02ND
2019-12-02ND
2019-12-02ND