Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Monochloroacetic acid

City of Monroe

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
2013N/A00N/A
20140.638 ppb164ND - 3.70 ppb
2015ND160ND
20160.300 ppb161ND - 4.80 ppb
20170.719 ppb165ND - 2.90 ppb
2018ND160ND
20190.356 ppb162ND - 3.20 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
2014-02-112975463ND
2014-02-112975464ND
2014-02-112975465ND
2014-02-112975462ND
2014-05-063022176ND
2014-05-063022178ND
2014-05-0630221802.10 ppb
2014-05-063022182ND
2014-08-1230836172.10 ppb
2014-08-1230836182.30 ppb
2014-08-123083619ND
2014-08-123083620ND
2014-11-123140271ND
2014-11-123140272ND
2014-11-123140270ND
2014-11-1231402693.70 ppb
2015-02-10ND
2015-02-10ND
2015-02-10ND
2015-02-10ND
2015-05-12ND
2015-05-12ND
2015-05-12ND
2015-05-12ND
2015-08-11ND
2015-08-11ND
2015-08-11ND
2015-08-11ND
2015-11-10ND
2015-11-10ND
2015-11-10ND
2015-11-10ND
2016-02-093399743ND
2016-02-093399745ND
2016-02-093399747ND
2016-02-093399749ND
2016-05-103448138ND
2016-05-103448136ND
2016-05-1034481344.80 ppb
2016-05-103448132ND
2016-08-093520470ND
2016-08-093520472ND
2016-08-093520474ND
2016-08-093520476ND
2016-11-083584383ND
2016-11-083584384ND
2016-11-083584385ND
2016-11-083584386ND
2017-02-0736356132.10 ppb
2017-02-0736356152.00 ppb
2017-02-0736356172.50 ppb
2017-02-0736356192.90 ppb
2017-05-093694796ND
2017-05-093694798ND
2017-05-0936947972.00 ppb
2017-05-093694799ND
2017-08-083758887ND
2017-08-083758889ND
2017-08-083758891ND
2017-08-083758893ND
2017-11-073818731ND
2017-11-073818732ND
2017-11-073818733ND
2017-11-073818734ND
2018-02-063868525 ND
2018-02-063868523 ND
2018-02-063868521 ND
2018-02-063868519 ND
2018-05-083934183 ND
2018-05-083934180 ND
2018-05-083934181 ND
2018-05-083934182 ND
2018-08-074021488 ND
2018-08-074021486 ND
2018-08-074021484 ND
2018-08-074021482 ND
2018-11-134125302 ND
2018-11-134125304 ND
2018-11-134125306 ND
2018-11-134125308 ND
2019-02-124198913-1 ND
2019-02-124198914-1 ND
2019-02-124198915-1 ND
2019-02-124198916-1 ND
2019-05-144298156 ND
2019-05-144298162 ND
2019-05-144298160 ND
2019-05-144298158 ND
2019-08-134389062 ND
2019-08-134389064 ND
2019-08-134389063 3.20 ppb
2019-08-134389061 2.50 ppb
2019-11-134489824 ND
2019-11-134489823 ND
2019-11-134489822 ND
2019-11-134489821 ND