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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Oak Harbor

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

 

74

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
2015ND160ND
2016ND160ND
2017ND100ND
2018ND80ND
2019ND80ND

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
2014-03-1310937ND
2014-03-1310936ND
2014-03-1310939ND
2014-03-1310938ND
2014-06-1225815ND
2014-06-1225814ND
2014-06-1225817ND
2014-06-1225816ND
2014-09-0940360ND
2014-09-0940359ND
2014-09-0940358ND
2014-09-0940357ND
2014-12-1856240ND
2014-12-1856243ND
2014-12-1856241ND
2014-12-1856242ND
2015-03-1010026ND
2015-03-1010028ND
2015-03-1010025ND
2015-03-1010027ND
2015-06-0926158ND
2015-06-0926156ND
2015-06-0926157ND
2015-06-0926155ND
2015-09-0842427ND
2015-09-0842426ND
2015-09-0842428ND
2015-09-0842425ND
2015-12-1761329ND
2015-12-1761328ND
2015-12-1761330ND
2015-12-1761327ND
2016-03-08ND
2016-03-08ND
2016-03-08ND
2016-03-08ND
2016-06-09ND
2016-06-09ND
2016-06-09ND
2016-06-09ND
2016-09-06ND
2016-09-06ND
2016-09-06ND
2016-09-06ND
2016-12-08ND
2016-12-08ND
2016-12-08ND
2016-12-08ND
2017-03-07ND
2017-03-07ND
2017-03-07ND
2017-03-07ND
2017-06-08ND
2017-06-08ND
2017-09-14ND
2017-09-14ND
2017-12-05ND
2017-12-05ND
2018-03-08ND
2018-03-08ND
2018-06-19ND
2018-06-19ND
2018-09-18ND
2018-09-18ND
2018-12-11ND
2018-12-11ND
2019-03-19ND
2019-03-19ND
2019-06-18ND
2019-06-18ND
2019-09-10ND
2019-09-10ND
2019-12-26ND
2019-12-26ND