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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Toccoa

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
20140.400 ppb163ND - 2.40 ppb
20150.206 ppb161ND - 3.30 ppb
20160.131 ppb161ND - 2.10 ppb
20170.538 ppb163ND - 3.50 ppb
20180.144 ppb161ND - 2.30 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
2014-03-11AI31376ND
2014-03-11AI31375ND
2014-03-11AI31374ND
2014-03-11AI31373ND
2014-06-10AI42833ND
2014-06-10AI42832ND
2014-06-10AI42831ND
2014-06-10AI42830ND
2014-09-09AI53433ND
2014-09-09AI53432ND
2014-09-09AI534342.00 ppb
2014-09-09AI534352.40 ppb
2014-12-09AI61063ND
2014-12-09AI61062ND
2014-12-09AI61061ND
2014-12-09AI610602.00 ppb
2015-03-10AI68699ND
2015-03-10AI68698ND
2015-03-10AI68697ND
2015-03-10AI68696ND
2015-06-09AI79355ND
2015-06-09AI79356ND
2015-06-09AI79358ND
2015-06-09AI79357ND
2015-09-08AI89049ND
2015-09-08AI89048ND
2015-09-08AI89047ND
2015-09-08AI890463.30 ppb
2015-12-08AJ02264ND
2015-12-08AJ02263ND
2015-12-08AJ02262ND
2015-12-08AJ02261ND
2016-03-07AJ07659ND
2016-03-07AJ07658ND
2016-03-07AJ07660ND
2016-03-07AJ07661ND
2016-06-14AJ142162.10 ppb
2016-06-14AJ14215ND
2016-06-14AJ14214ND
2016-06-14AJ14213ND
2016-09-12AJ26872ND
2016-09-12AJ26871ND
2016-09-12AJ26870ND
2016-09-12AJ26869ND
2016-12-13AJ36748ND
2016-12-13AJ36751ND
2016-12-13AJ36750ND
2016-12-13AJ36749ND
2017-03-13AJ47991ND
2017-03-13AJ47990ND
2017-03-13AJ47989ND
2017-03-13AJ47988ND
2017-06-13AJ575013.50 ppb
2017-06-13AJ575002.80 ppb
2017-06-13AJ57499ND
2017-06-13AJ574982.30 ppb
2017-09-13AJ67692ND
2017-09-13AJ67691ND
2017-09-13AJ67693ND
2017-09-13AJ67694ND
2017-12-12AJ75429ND
2017-12-12AJ75428ND
2017-12-12AJ75427ND
2017-12-12AJ75426ND
2018-03-13AJ85896ND
2018-03-13AJ85895ND
2018-03-13AJ85894ND
2018-03-13AJ85893ND
2018-06-11AJ912342.30 ppb
2018-06-11AJ91235ND
2018-06-11AJ91237ND
2018-06-11AJ91236ND
2018-09-11AK00748ND
2018-09-11AK00747ND
2018-09-11AK00746ND
2018-09-11AK00745ND
2018-12-04AK07253ND
2018-12-04AK07252ND
2018-12-04AK07251ND
2018-12-04AK07250ND
2019-03-11AK13034ND
2019-03-11AK13033ND
2019-03-11AK13035ND
2019-03-11AK13036ND
2019-06-11AK19508ND
2019-06-11AK19507ND
2019-06-11AK19506ND
2019-06-11AK19505ND
2019-09-10AK30020ND
2019-09-10AK30019ND
2019-09-10AK30018ND
2019-09-10AK30017ND
2019-12-09AK38063ND
2019-12-09AK38066ND
2019-12-09AK38065ND
2019-12-09AK38064ND