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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Kelso

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

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND80ND
2016ND80ND
2017ND80ND
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
2014-03-1826721ND
2014-03-1826722ND
2014-06-0455634ND
2014-06-0455632ND
2014-09-1598944ND
2014-09-1598943ND
2014-12-1640702ND
2014-12-1640701ND
2015-03-2530842ND
2015-03-2530841ND
2015-06-2468592ND
2015-06-2468591ND
2015-09-2406291ND
2015-09-2406292ND
2015-12-1744172ND
2015-12-1744171ND
2016-03-17ND
2016-03-17ND
2016-06-22ND
2016-06-22ND
2016-09-27ND
2016-10-19ND
2016-12-21ND
2016-12-21ND
2017-03-22ND
2017-03-22ND
2017-06-21ND
2017-06-21ND
2017-09-14ND
2017-09-14ND
2017-12-06ND
2017-12-06ND
2018-03-08ND
2018-03-08ND
2018-06-13ND
2018-06-13ND
2018-09-06ND
2018-09-06ND
2018-12-19ND
2018-12-19ND
2019-03-06ND
2019-03-06ND
2019-06-06ND
2019-06-06ND
2019-09-12ND
2019-09-12ND
2019-12-18ND
2019-12-18ND