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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Kirkland

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
20140.631 ppb165ND - 2.90 ppb
2015ND160ND
20160.0938 ppb161ND - 1.50 ppb
2017ND160ND
20180.558 ppb165ND - 2.07 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
2014-01-2201337ND
2014-01-2201334ND
2014-01-2201335ND
2014-01-2201336ND
2014-04-2207023ND
2014-04-22070261.50 ppb
2014-04-22070241.70 ppb
2014-04-22070251.80 ppb
2014-07-22130662.90 ppb
2014-07-2213065ND
2014-07-22130682.20 ppb
2014-07-2213067ND
2014-10-2019831ND
2014-10-2019828ND
2014-10-2019829ND
2014-10-2019830ND
2015-01-2225704ND
2015-01-2225702ND
2015-01-2225701ND
2015-01-2225703ND
2015-04-2194103ND
2015-04-2194102ND
2015-04-2194101ND
2015-04-2194104ND
2015-07-2048702ND
2015-07-2048704ND
2015-07-2048701ND
2015-07-2048703ND
2015-10-1925902ND
2015-10-1925901ND
2015-10-1925904ND
2015-10-1925903ND
2016-01-19ND
2016-01-19ND
2016-01-19ND
2016-01-19ND
2016-04-19ND
2016-04-19ND
2016-04-19ND
2016-04-19ND
2016-07-18ND
2016-07-18ND
2016-07-18ND
2016-07-18ND
2016-10-17ND
2016-10-17ND
2016-10-171.50 ppb
2016-10-17ND
2017-01-17ND
2017-01-17ND
2017-01-17ND
2017-01-17ND
2017-04-17ND
2017-04-17ND
2017-04-17ND
2017-04-17ND
2017-07-17ND
2017-07-17ND
2017-07-17ND
2017-07-17ND
2017-10-11ND
2017-10-11ND
2017-10-11ND
2017-10-11ND
2018-01-17ND
2018-01-17ND
2018-01-17ND
2018-01-17ND
2018-04-10ND
2018-04-10ND
2018-04-10ND
2018-04-101.50 ppb
2018-07-122.07 ppb
2018-07-121.98 ppb
2018-07-121.50 ppb
2018-07-12ND
2018-10-08ND
2018-10-08ND
2018-10-081.87 ppb
2018-10-08ND
2019-01-17ND
2019-01-17ND
2019-01-17ND
2019-01-17ND
2019-04-09ND
2019-04-09ND
2019-04-09ND
2019-04-09ND
2019-07-17ND
2019-07-17ND
2019-07-17ND
2019-07-17ND
2019-10-16ND
2019-10-16ND
2019-10-16ND
2019-10-16ND