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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Pullman Water Department

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

 

43

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND220ND
2015ND100ND
2016ND50ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-01-1593870ND
2014-01-1593862ND
2014-01-1593872ND
2014-01-1593866ND
2014-01-1593860ND
2014-01-1593864ND
2014-01-1593868ND
2014-04-1596662ND
2014-04-1596660ND
2014-04-1596664ND
2014-04-1596658ND
2014-04-1596656ND
2014-07-1500214ND
2014-07-1500208ND
2014-07-1500210ND
2014-07-1500206ND
2014-07-1500212ND
2014-10-1553878ND
2014-10-1553872ND
2014-10-1553880ND
2014-10-1553874ND
2014-10-1553876ND
2015-01-1556495ND
2015-01-1556493ND
2015-01-1556497ND
2015-01-1556491ND
2015-01-1556489ND
2015-08-1164038ND
2015-08-1164042ND
2015-08-1164040ND
2015-08-1164044ND
2015-08-1164036ND
2016-08-12ND
2016-08-12ND
2016-08-12ND
2016-08-12ND
2016-08-12ND
2017-08-10ND
2017-08-10ND
2018-08-20ND
2018-08-20ND
2019-08-14ND
2019-08-14ND