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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Durant

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

 

100

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.75 ppb2011ND - 4.40 ppb
20150.500 ppb163ND - 3.30 ppb
20161.08 ppb1610ND - 2.68 ppb
2017ND160ND
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
2014-01-21039274.0102.50 ppb
2014-01-21039274.008ND
2014-01-21039274.006ND
2014-01-21039274.0042.10 ppb
2014-01-21039274.0022.40 ppb
2014-04-02041854.0083.50 ppb
2014-04-02041854.006ND
2014-04-02041854.0042.90 ppb
2014-04-02041854.002ND
2014-04-14041854.0112.30 ppb
2014-07-16044991.0062.40 ppb
2014-07-16044991.0024.30 ppb
2014-07-16044991.0044.30 ppb
2014-07-16044991.0083.80 ppb
2014-07-16044991.0104.40 ppb
2014-10-08048808.010ND
2014-10-08048808.008ND
2014-10-08048808.006ND
2014-10-08048808.002ND
2014-10-09048808.004ND
2015-01-20051923.008ND
2015-01-20051923.006ND
2015-01-20051923.004ND
2015-01-20051923.002ND
2015-04-13054810.0082.60 ppb
2015-04-13054810.0022.10 ppb
2015-04-13054810.0043.30 ppb
2015-04-13054810.006ND
2015-07-29058967.008ND
2015-07-29058967.006ND
2015-07-29058967.004ND
2015-07-29058967.002ND
2015-10-14063640.008ND
2015-10-14063640.006ND
2015-10-14063640.004ND
2015-10-14063640.002ND
2016-01-20067592.006ND
2016-01-20067592.002ND
2016-01-20067592.004ND
2016-01-20067592.008ND
2016-04-1316043391.97 ppb
2016-04-1316043382.68 ppb
2016-04-1316043371.91 ppb
2016-04-1316043361.88 ppb
2016-07-0916073801.37 ppb
2016-07-0916073791.23 ppb
2016-07-0916073781.69 ppb
2016-07-0916073771.69 ppb
2016-10-121610362ND
2016-10-121610361ND
2016-10-1216103601.50 ppb
2016-10-1216103591.39 ppb
2017-01-101701299ND
2017-01-101701298ND
2017-01-101701297ND
2017-01-101701296ND
2017-04-121704350ND
2017-04-121704349ND
2017-04-121704348ND
2017-04-121704347ND
2017-07-261707668ND
2017-07-261707666ND
2017-07-261707667ND
2017-07-261707669ND
2017-10-101710432ND
2017-10-101710431ND
2017-10-101710430ND
2017-10-101710429ND
2018-01-241801619ND
2018-01-241801618ND
2018-01-241801617ND
2018-01-241801616ND
2018-04-181804501ND
2018-04-181804500ND
2018-04-181804502ND
2018-04-181804503ND
2018-07-111807361ND
2018-07-111807360ND
2018-07-111807359ND
2018-07-111807358ND
2018-10-311810706ND
2018-10-311810705ND
2018-10-311810704ND
2018-10-311810703ND
2019-01-301901680ND
2019-01-301901678ND
2019-01-301901679ND
2019-01-301901681ND
2019-04-051904387ND
2019-04-051904386ND
2019-04-051904385ND
2019-04-051904384ND
2019-07-091907383ND
2019-07-091907382ND
2019-07-091907381ND
2019-07-091907380ND
2019-10-091910375ND
2019-10-091910376ND
2019-10-091910377ND
2019-10-091910374ND