Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Monochloroacetic acid

City of Redmond Water System

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.

 

188

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.393 ppb296ND - 2.10 ppb
20130.809 ppb3212ND - 3.70 ppb
20141.68 ppb3115ND - 7.60 ppb
20150.646 ppb328ND - 3.45 ppb
20161.21 ppb3216ND - 2.95 ppb
20170.0650 ppb321ND - 2.08 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
2012-02-0602184ND
2012-02-0602186ND
2012-02-0602185ND
2012-02-0602187ND
2012-02-0602183ND
2012-04-0205814ND
2012-04-0205813ND
2012-04-0205816ND
2012-04-0205815ND
2012-04-0205812ND
2012-04-0205811ND
2012-04-0205809ND
2012-04-0205810ND
2012-07-02120361.90 ppb
2012-07-02120401.60 ppb
2012-07-02120392.00 ppb
2012-07-02120351.90 ppb
2012-07-0212037ND
2012-07-02120422.10 ppb
2012-07-0212041ND
2012-07-02120381.90 ppb
2012-10-0118492ND
2012-10-0118495ND
2012-10-0118491ND
2012-10-0118490ND
2012-10-0118493ND
2012-10-0118488ND
2012-10-0118489ND
2012-10-0118494ND
2013-01-0800414ND
2013-01-0800415ND
2013-01-0800416ND
2013-01-0800409ND
2013-01-0800410ND
2013-01-0800413ND
2013-01-0800412ND
2013-01-0800411ND
2013-04-0106777ND
2013-04-0106778ND
2013-04-0106776ND
2013-04-0106775ND
2013-04-0106781ND
2013-04-0106782ND
2013-04-0106779ND
2013-04-0106780ND
2013-07-01133512.30 ppb
2013-07-01133442.20 ppb
2013-07-01133472.50 ppb
2013-07-0213350ND
2013-07-02133451.60 ppb
2013-07-0213346ND
2013-07-02133491.60 ppb
2013-09-03180243.70 ppb
2013-10-07204122.70 ppb
2013-10-07204141.60 ppb
2013-10-07204071.80 ppb
2013-10-07204102.60 ppb
2013-10-0720413ND
2013-10-07204081.60 ppb
2013-10-0720409ND
2013-10-07204111.70 ppb
2014-01-0800368ND
2014-01-0800367ND
2014-01-0800370ND
2014-01-0800363ND
2014-01-0800364ND
2014-01-0800365ND
2014-01-0800366ND
2014-04-09062142.60 ppb
2014-04-09062182.70 ppb
2014-04-09062154.40 ppb
2014-04-0906213ND
2014-04-09062164.90 ppb
2014-04-0906217ND
2014-04-09062112.80 ppb
2014-04-09062122.80 ppb
2014-07-09122312.90 ppb
2014-07-09122332.40 ppb
2014-07-09122352.60 ppb
2014-07-09122367.60 ppb
2014-07-0912237ND
2014-07-09122342.80 ppb
2014-07-09122383.00 ppb
2014-07-09122325.10 ppb
2014-10-0818869ND
2014-10-08188723.80 ppb
2014-10-0818871ND
2014-10-0818874ND
2014-10-0818873ND
2014-10-08188671.80 ppb
2014-10-0818870ND
2014-10-0818868ND
2015-01-0715208ND
2015-01-0715207ND
2015-01-0715203ND
2015-01-0715202ND
2015-01-0715206ND
2015-01-0715201ND
2015-01-0715204ND
2015-01-0715205ND
2015-04-0888707ND
2015-04-0888708ND
2015-04-08887062.03 ppb
2015-04-08887052.14 ppb
2015-04-0888704ND
2015-04-0888703ND
2015-04-08887012.47 ppb
2015-04-0888702ND
2015-07-0837607ND
2015-07-0837608ND
2015-07-0837606ND
2015-07-0837605ND
2015-07-0837604ND
2015-07-0837603ND
2015-07-0837601ND
2015-07-0837602ND
2015-10-0718907ND
2015-10-0718908ND
2015-10-07189062.49 ppb
2015-10-07189052.94 ppb
2015-10-07189042.74 ppb
2015-10-0718903ND
2015-10-07189012.42 ppb
2015-10-07189023.45 ppb
2016-01-06ND
2016-01-06ND
2016-01-06ND
2016-01-06ND
2016-01-06ND
2016-01-06ND
2016-01-06ND
2016-01-06ND
2016-04-082.08 ppb
2016-04-082.26 ppb
2016-04-082.66 ppb
2016-04-081.89 ppb
2016-04-08ND
2016-04-082.68 ppb
2016-04-082.78 ppb
2016-04-08ND
2016-07-062.05 ppb
2016-07-06ND
2016-07-062.52 ppb
2016-07-06ND
2016-07-062.29 ppb
2016-07-061.97 ppb
2016-07-06ND
2016-07-06ND
2016-10-04ND
2016-10-04ND
2016-10-041.81 ppb
2016-10-042.52 ppb
2016-10-042.76 ppb
2016-10-042.78 ppb
2016-10-042.78 ppb
2016-10-042.95 ppb
2017-01-11ND
2017-01-11ND
2017-01-11ND
2017-01-11ND
2017-01-112.08 ppb
2017-01-11ND
2017-01-11ND
2017-01-11ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-07-05ND
2017-07-05ND
2017-07-05ND
2017-07-05ND
2017-07-05ND
2017-07-05ND
2017-07-05ND
2017-07-05ND
2017-10-11ND
2017-10-11ND
2017-10-11ND
2017-10-11ND
2017-10-11ND
2017-10-11ND
2017-10-11ND
2017-10-11ND