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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Ferndale

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

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND170ND
2016ND60ND
20171.20 ppb21ND - 2.40 ppb
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
2014-01-1402136ND
2014-04-2417536ND
2014-07-0829626ND
2014-10-2147196ND
2015-01-1302074ND
2015-03-2412246ND
2015-03-2412247ND
2015-03-2412249ND
2015-03-2412245ND
2015-04-2818473ND
2015-04-2818470ND
2015-04-2818471ND
2015-04-2818472ND
2015-07-2834214ND
2015-07-2834216ND
2015-07-2834215ND
2015-07-2834213ND
2015-10-2751348ND
2015-10-2751349ND
2015-10-2751347ND
2015-10-2751346ND
2016-02-23ND
2016-02-23ND
2016-02-23ND
2016-02-23ND
2016-07-07ND
2016-07-07ND
2017-07-072.40 ppb
2017-07-07ND
2018-07-03ND
2018-07-03ND
2019-07-23ND
2019-07-23ND