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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Marysville Utilities

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

 

176

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.681 ppb329ND - 3.00 ppb
20150.0875 ppb241ND - 2.10 ppb
20160.1000 ppb241ND - 2.40 ppb
20170.713 ppb328ND - 3.20 ppb
2018ND320ND
20190.303 ppb324ND - 2.50 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
2014-02-1106434ND
2014-02-1106431ND
2014-02-1106430ND
2014-02-1106435ND
2014-02-1106433ND
2014-02-1106432ND
2014-02-1106437ND
2014-02-1106436ND
2014-05-1521240ND
2014-05-1521243ND
2014-05-1521238ND
2014-05-1521242ND
2014-05-1521236ND
2014-05-1521239ND
2014-05-1521237ND
2014-05-1521241ND
2014-08-13361952.10 ppb
2014-08-13361993.00 ppb
2014-08-1336196ND
2014-08-13361982.10 ppb
2014-08-13361972.60 ppb
2014-08-14361932.20 ppb
2014-08-14361922.10 ppb
2014-08-1436194ND
2014-11-1250696ND
2014-11-1250701ND
2014-11-12507002.30 ppb
2014-11-1250697ND
2014-11-12506952.70 ppb
2014-11-1250698ND
2014-11-12506992.70 ppb
2014-11-1250702ND
2015-02-1006180ND
2015-02-1006187ND
2015-02-1006181ND
2015-02-10061832.10 ppb
2015-02-1006185ND
2015-02-1006184ND
2015-02-1006182ND
2015-02-1006186ND
2015-05-1221333ND
2015-05-1221327ND
2015-05-1221331ND
2015-05-1221330ND
2015-05-1221334ND
2015-05-1221329ND
2015-05-1221332ND
2015-05-1221328ND
2015-08-1137476ND
2015-08-1137475ND
2015-08-1137477ND
2015-08-1137479ND
2015-08-1137478ND
2015-08-1137480ND
2015-08-1137473ND
2015-08-1137474ND
2016-02-09ND
2016-02-09ND
2016-02-09ND
2016-02-09ND
2016-02-09ND
2016-02-09ND
2016-02-09ND
2016-02-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-08-09ND
2016-11-08ND
2016-11-08ND
2016-11-08ND
2016-11-08ND
2016-11-08ND
2016-11-08ND
2016-11-08ND
2016-11-082.40 ppb
2017-02-14ND
2017-02-14ND
2017-02-14ND
2017-02-14ND
2017-02-14ND
2017-02-14ND
2017-02-14ND
2017-02-14ND
2017-05-093.20 ppb
2017-05-092.50 ppb
2017-05-09ND
2017-05-09ND
2017-05-093.00 ppb
2017-05-092.80 ppb
2017-05-093.10 ppb
2017-05-093.00 ppb
2017-08-08ND
2017-08-08ND
2017-08-08ND
2017-08-08ND
2017-08-08ND
2017-08-08ND
2017-08-08ND
2017-08-08ND
2017-11-14ND
2017-11-142.00 ppb
2017-11-143.20 ppb
2017-11-14ND
2017-11-14ND
2017-11-14ND
2017-11-14ND
2017-11-14ND
2018-03-14ND
2018-03-14ND
2018-03-14ND
2018-03-14ND
2018-03-14ND
2018-03-14ND
2018-03-14ND
2018-03-14ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-05-16ND
2018-08-15ND
2018-08-15ND
2018-08-15ND
2018-08-15ND
2018-08-15ND
2018-08-16ND
2018-08-16ND
2018-08-16ND
2018-11-14ND
2018-11-14ND
2018-11-14ND
2018-11-14ND
2018-11-14ND
2018-11-14ND
2018-11-14ND
2018-11-14ND
2019-02-13ND
2019-02-13ND
2019-02-13ND
2019-02-13ND
2019-02-13ND
2019-02-13ND
2019-02-13ND
2019-02-13ND
2019-05-15ND
2019-05-15ND
2019-05-15ND
2019-05-15ND
2019-05-152.40 ppb
2019-05-15ND
2019-05-152.50 ppb
2019-05-152.50 ppb
2019-08-13ND
2019-08-13ND
2019-08-13ND
2019-08-13ND
2019-08-132.30 ppb
2019-08-13ND
2019-08-13ND
2019-08-13ND
2019-11-13ND
2019-11-13ND
2019-11-13ND
2019-11-13ND
2019-11-13ND
2019-11-13ND
2019-11-13ND
2019-11-13ND