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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Newton

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND
20180.200 ppb161ND - 3.20 ppb
2019ND160ND

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
2014-02-1060132ND
2014-02-1060050ND
2014-02-1060042ND
2014-02-1060035ND
2014-05-05109976ND
2014-05-05109975ND
2014-05-05109974ND
2014-05-05109973ND
2014-08-18175999ND
2014-08-18175998ND
2014-08-18176000ND
2014-08-18176001ND
2014-11-17233082ND
2014-11-17233081ND
2014-11-17233080ND
2014-11-17233079ND
2015-02-23284218ND
2015-02-23284217ND
2015-02-23284216ND
2015-02-23284215ND
2015-05-18334995ND
2015-05-18334996ND
2015-05-18334998ND
2015-05-18334997ND
2015-08-18390599ND
2015-08-18390597ND
2015-08-18390595ND
2015-08-18390589ND
2015-11-17428165ND
2015-11-17428164ND
2015-11-17428163ND
2015-11-17428162ND
2016-02-22497114ND
2016-02-22497113ND
2016-02-22497115ND
2016-02-22497116ND
2016-05-23551404ND
2016-05-23551403ND
2016-05-23551402ND
2016-05-23551401ND
2016-08-22607948ND
2016-08-22607947ND
2016-08-22607946ND
2016-08-22607945ND
2016-11-07656978ND
2016-11-07656981ND
2016-11-07656980ND
2016-11-07656979ND
2017-02-13708232ND
2017-02-13708231ND
2017-02-13708230ND
2017-02-13708229ND
2017-05-23766164ND
2017-05-23766163ND
2017-05-23766162ND
2017-05-23766161ND
2017-08-29829778ND
2017-08-29829777ND
2017-08-29829780ND
2017-08-29829781ND
2017-11-14878968ND
2017-11-14878967ND
2017-11-14878966ND
2017-11-14878965ND
2018-02-12908555ND
2018-02-12908554ND
2018-02-12908553ND
2018-02-20926774ND
2018-05-21974182ND
2018-05-21974183ND
2018-05-21974185ND
2018-05-21974184ND
2018-08-131025161ND
2018-08-131025160ND
2018-08-131025159ND
2018-08-1310251583.20 ppb
2018-11-131077378ND
2018-11-131077377ND
2018-11-131077376ND
2018-11-131077375ND
2019-02-041114511ND
2019-02-041114510ND
2019-02-041114512ND
2019-02-041114513ND
2019-05-201157986ND
2019-05-201157985ND
2019-05-201157984ND
2019-05-201157983ND
2019-08-131223238ND
2019-08-131223237ND
2019-08-131223236ND
2019-08-131223235ND
2019-11-041272052ND
2019-11-041272055ND
2019-11-041272054ND
2019-11-041272053ND