Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Monochloroacetic acid

City of Eden

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
2014ND160ND
20151.29 ppb168ND - 3.00 ppb
2016ND160ND
20170.688 ppb164ND - 2.90 ppb
2018ND160ND
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
2014-02-0392188333002-2ND
2014-02-0392188333003-2ND
2014-02-0392188333004-2ND
2014-02-0392188333001-2ND
2014-05-0192199448001DIS-2ND
2014-05-0192199448002DIS-2ND
2014-05-0192199448003DIS-2ND
2014-05-0192199448004DIS-2ND
2014-08-0592211903001TTH-2ND
2014-08-0592211903002TTH-2ND
2014-08-0592211903003TTH-2ND
2014-08-0592211903004TTH-2ND
2014-11-0492223894002TTH-2ND
2014-11-0492223894004TTH-2ND
2014-11-0492223894003TTH-2ND
2014-11-0492223894001TTH-2ND
2015-02-02ND
2015-02-02ND
2015-02-02ND
2015-02-02ND
2015-05-043.00 ppb
2015-05-043.00 ppb
2015-05-042.40 ppb
2015-05-042.90 ppb
2015-08-04ND
2015-08-04ND
2015-08-04ND
2015-08-04ND
2015-11-032.30 ppb
2015-11-032.20 ppb
2015-11-032.40 ppb
2015-11-032.50 ppb
2016-02-0292284970001TTH-2ND
2016-02-0292284970002TTH-2ND
2016-02-0292284970003TTH-2ND
2016-02-0292284970004TTH-2ND
2016-05-0392295997004TTH-2ND
2016-05-0392295997003TTH-2ND
2016-05-0392295997002TTH-2ND
2016-05-0392295997001TTH-2ND
2016-08-0492307615001TTH-2ND
2016-08-0492307615002TTH-2ND
2016-08-0492307615003TTH-2ND
2016-08-0492307615004TTH-2ND
2016-11-0292318131001TTH-2ND
2016-11-0292318131002TTH-2ND
2016-11-0292318131003TTH-2ND
2016-11-0292318131004TTH-2ND
2017-02-0192328280004TTHND
2017-02-0192328280003TTHND
2017-02-0192328280002TTHND
2017-02-0192328280001TTHND
2017-05-0392339176001TTHND
2017-05-0392339176003TTHND
2017-05-0392339176002TTHND
2017-05-0392339176004TTHND
2017-08-0292349789001TTH2.70 ppb
2017-08-0292349789002TTH2.60 ppb
2017-08-0292349789003TTH2.90 ppb
2017-08-0292349789004TTH2.80 ppb
2017-11-0192361492001TTHND
2017-11-0192361492002TTHND
2017-11-0192361492003TTHND
2017-11-0192361492004TTHND
2018-02-0692372084004TTH ND
2018-02-0692372084003TTH ND
2018-02-0692372084002TTH ND
2018-02-0692372084001TTH ND
2018-05-0292383118004TTH ND
2018-05-0292383118001TTH ND
2018-05-0292383118002TTH ND
2018-05-0292383118003TTH ND
2018-08-0792394678004TTH ND
2018-08-0792394678003TTH ND
2018-08-0792394678002TTH ND
2018-08-2392396866001TTH ND
2018-11-0192405596001TTH ND
2018-11-0192405596002TTH ND
2018-11-0192405596003TTH ND
2018-11-0192405596004TTH ND
2019-02-0492416286001_3770ND
2019-02-0492416286002_3770ND
2019-02-0492416286003_3770ND
2019-02-0492416286004_3770ND
2019-05-0192427509001_3770ND
2019-05-0192427509004_3770ND
2019-05-0192427509003_3770ND
2019-05-0192427509002_3770ND
2019-08-0192439513002_3770ND
2019-08-0192439513004_3770ND
2019-08-0192439513003_3770ND
2019-08-0192439513001_3770ND
2019-11-0492452118004_3770ND
2019-11-0492452118003_3770ND
2019-11-0492452118002_3770ND
2019-11-0492452118001_3770ND