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EWG's Tap Water Database — 2019 UPDATE

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Monochloroacetic acid

City of Manhattan

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.

 

78

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND160ND
20130.183 ppb121ND - 2.20 ppb
2014ND160ND
20150.719 ppb164ND - 3.60 ppb
20160.381 ppb163ND - 2.10 ppb
2017ND20ND

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
2012-02-01573107DFND
2012-02-01573108DFND
2012-02-01573109DFND
2012-02-01573110DFND
2012-04-18577805DFND
2012-04-18577804DFND
2012-04-18577803DFND
2012-04-18577802DFND
2012-07-25582496DFND
2012-07-25582498DFND
2012-07-25582497DFND
2012-07-25582495DFND
2012-10-24587164DFND
2012-10-24587163DFND
2012-10-24587162DFND
2012-10-24587165DFND
2013-04-24595080DFND
2013-04-24595081DFND
2013-04-24595082DFND
2013-04-24595079DFND
2013-07-24599472DFND
2013-07-24599473DFND
2013-07-24599474DFND
2013-07-24599471DF2.20 ppb
2013-10-30605149DFND
2013-10-30605150DFND
2013-10-30605151DFND
2013-10-30605152DFND
2014-01-0831876ND
2014-01-0831875ND
2014-01-0831874ND
2014-01-0831873ND
2014-04-29104282ND
2014-04-29104278ND
2014-04-29104276ND
2014-04-29104271ND
2014-07-15152244ND
2014-07-15152245ND
2014-07-15152246ND
2014-07-15152247ND
2014-10-21217640ND
2014-10-21217646ND
2014-10-21217644ND
2014-10-21217642ND
2015-01-062588282.80 ppb
2015-01-062588292.40 ppb
2015-01-062588262.70 ppb
2015-01-062588273.60 ppb
2015-04-22317261ND
2015-04-22317262ND
2015-04-22317260ND
2015-04-22317259ND
2015-07-21371037ND
2015-07-21371039ND
2015-07-21371038ND
2015-07-21371040ND
2015-10-20418914ND
2015-10-20418912ND
2015-10-20418911ND
2015-10-20418913ND
2016-01-05470016ND
2016-01-05470015ND
2016-01-05470017ND
2016-01-05470014ND
2016-04-19531380ND
2016-04-19531379ND
2016-04-19531378ND
2016-04-19531377ND
2016-07-12582031ND
2016-07-12582034ND
2016-07-12582033ND
2016-07-12582032ND
2016-10-116421842.00 ppb
2016-10-116421872.00 ppb
2016-10-116421862.10 ppb
2016-10-11642185ND
2017-08-29830177ND
2017-08-29830176ND