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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Cotton Plant Water System

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

 

76

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
20152.40 ppb42ND - 4.80 ppb
20160.133 ppb162ND - 1.06 ppb
2017ND160ND
2018ND160ND
2019ND200ND

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
2014-05-201302773ND
2014-05-201302772ND
2014-05-201302773ND
2014-05-201302772ND
2015-05-21351901140014.80 ppb
2015-05-2135190114002ND
2015-05-2135190114002ND
2015-05-21351901140014.80 ppb
2016-02-091465818ND
2016-02-091465819ND
2016-02-091465819ND
2016-02-091465818ND
2016-05-021487891ND
2016-05-021487892ND
2016-05-021487892ND
2016-05-021487891ND
2016-08-091514213ND
2016-08-0915142141.06 ppb
2016-08-0915142141.06 ppb
2016-08-091514213ND
2016-11-281544076ND
2016-11-281544077ND
2016-11-281544077ND
2016-11-281544076ND
2017-02-0135292874020ND
2017-02-0135292874019ND
2017-02-0135292874020ND
2017-02-0135292874019ND
2017-05-1135312128012ND
2017-05-1135312128011ND
2017-05-1135312128011ND
2017-05-1135312128012ND
2017-08-0135328002034ND
2017-08-0135328002033ND
2017-08-0135328002033ND
2017-08-0135328002034ND
2017-11-0335346229001ND
2017-11-0335346229002ND
2017-11-0335346229002ND
2017-11-0335346229001ND
2018-03-2235381949002ND
2018-03-2235381949001ND
2018-03-2235381949001ND
2018-03-2235381949002ND
2018-05-1135391969001ND
2018-05-1135391969002ND
2018-05-1135391969001ND
2018-05-1135391969002ND
2018-08-0635409891001ND
2018-08-0635409891002ND
2018-08-0635409891001ND
2018-08-0635409891002ND
2018-11-1435431652001ND
2018-11-1435431652002ND
2018-11-1435431652001ND
2018-11-1435431652002ND
2019-02-1335448473001ND
2019-02-1335448473002ND
2019-02-1335448473001ND
2019-02-1335448473002ND
2019-05-0635468214002ND
2019-05-0635468214001ND
2019-05-0635468214001ND
2019-05-0635468214002ND
2019-08-0535488684002ND
2019-08-0535488684002ND
2019-08-0535488684001ND
2019-08-0535488684001ND
2019-08-2235492731002ND
2019-08-2235492731001ND
2019-08-2235492731001ND
2019-08-2235492731002ND
2019-11-0635510937001ND
2019-11-0635510937002ND
2019-11-0635510937001ND
2019-11-0635510937002ND