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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of Youngsville Purchase Ws

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

 

92

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
20152.55 ppb441.80 ppb - 3.30 ppb
2016ND40ND
2017ND160ND
2018ND320ND
2019ND320ND

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
2014-08-15L0046884-01ND
2014-08-15L0046883-01ND
2014-08-15L0046884-01ND
2014-08-15L0046883-01ND
2015-08-26LA10895-11.80 ppb
2015-08-26LA10895-11.80 ppb
2015-08-26LA10896-13.30 ppb
2015-08-26LA10896-13.30 ppb
2016-08-02LA23804-1ND
2016-08-02LA23805-1ND
2016-08-02LA23805-1ND
2016-08-02LA23804-1ND
2017-08-0435328349028ND
2017-08-0435328349027ND
2017-08-0435328349026ND
2017-08-0435328349029ND
2017-08-0435328349029ND
2017-08-0435328349028ND
2017-08-0435328349027ND
2017-08-0435328349026ND
2017-11-0935347540003ND
2017-11-0935347540003ND
2017-11-0935347540002ND
2017-11-0935347540001ND
2017-11-0935347540004ND
2017-11-0935347540004ND
2017-11-0935347540002ND
2017-11-0935347540001ND
2018-02-0835374041002ND
2018-02-0835374041003ND
2018-02-0835374041002ND
2018-02-0835374041001ND
2018-02-0835374041004ND
2018-02-0835374041004ND
2018-02-0835374041003ND
2018-02-0835374041001ND
2018-05-0335390337003ND
2018-05-0335390337002ND
2018-05-0335390337004ND
2018-05-0335390337003ND
2018-05-0335390337002ND
2018-05-0335390337001ND
2018-05-0335390337004ND
2018-05-0335390337001ND
2018-08-0835410619002ND
2018-08-0835410619004ND
2018-08-0835410619003ND
2018-08-0835410619002ND
2018-08-0835410619001ND
2018-08-0835410619003ND
2018-08-0835410619001ND
2018-08-0835410619004ND
2018-11-1535432285004ND
2018-11-1535432285003ND
2018-11-1535432285002ND
2018-11-1535432285001ND
2018-11-1535432285004ND
2018-11-1535432285003ND
2018-11-1535432285002ND
2018-11-1535432285001ND
2019-02-0735447082003ND
2019-02-0735447082004ND
2019-02-0735447082004ND
2019-02-0735447082003ND
2019-02-0735447082002ND
2019-02-0735447082001ND
2019-02-0735447082002ND
2019-02-0735447082001ND
2019-05-0335466009004ND
2019-05-0335466009001ND
2019-05-0335466009004ND
2019-05-0335466009003ND
2019-05-0335466009002ND
2019-05-0335466009001ND
2019-05-0335466009002ND
2019-05-0335466009003ND
2019-08-0835488605004ND
2019-08-0835488605004ND
2019-08-0835488605003ND
2019-08-0835488605002ND
2019-08-0835488605001ND
2019-08-0835488605001ND
2019-08-0835488605002ND
2019-08-0835488605003ND
2019-11-2135514595001ND
2019-11-2135514595004ND
2019-11-2135514595003ND
2019-11-2135514595002ND
2019-11-2135514595001ND
2019-11-2135514595004ND
2019-11-2135514595003ND
2019-11-2135514595002ND