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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Golden Heart Utilities

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND160ND
2019ND160ND

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
2014-01-15DH*F1401093-01AND
2014-01-15DH*F1401093-06AND
2014-01-15DH*F1401093-07AND
2014-01-15DH*F1401093-08AND
2014-04-02DH*F1404032-01AND
2014-04-02DH*F1404032-06AND
2014-04-02DH*F1404032-07AND
2014-04-02DH*F1404032-08AND
2014-07-21DH*F1407181-08AND
2014-07-21DH*F1407181-07AND
2014-07-21DH*F1407181-01AND
2014-07-21DH*F1407181-06AND
2014-10-21DH*3127472ND
2014-10-21DH*3127470ND
2014-10-21DH*3127474ND
2014-10-21DH*3127473ND
2015-01-14DH*3171709ND
2015-01-14DH*3171711ND
2015-01-14DH*3171713ND
2015-01-14DH*3171715ND
2015-04-01DH*3217837ND
2015-04-01DH*3217839ND
2015-04-01DH*3217841ND
2015-04-01DH*3217843ND
2015-07-08DH*3277497ND
2015-07-08DH*3277499ND
2015-07-08DH*3277498ND
2015-07-08DH*3277496ND
2015-10-07DH*3339788ND
2015-10-07DH*3339790ND
2015-10-07DH*3339792ND
2015-10-07DH*3339786ND
2016-01-19DH*3390377ND
2016-01-19DH*3390379ND
2016-01-19DH*3390381ND
2016-01-19DH*3390383ND
2016-04-12DH*3431188ND
2016-04-12DH*3431189ND
2016-04-12DH*3431187ND
2016-04-12DH*3431186ND
2016-07-11DH*3492891ND
2016-07-11DH*3492893ND
2016-07-11DH*3492895ND
2016-07-11DH*3492897ND
2016-10-19DH*3570317ND
2016-10-19DH*3570318ND
2016-10-19DH*3570319ND
2016-10-19DH*3570320ND
2017-01-17DH*3624359ND
2017-01-17DH*3624356ND
2017-01-17DH*3624357ND
2017-01-17DH*3624358ND
2017-04-11DH*3673196ND
2017-04-11DH*3673197ND
2017-04-11DH*3673198ND
2017-04-11DH*3673199ND
2017-07-25DH*3743595ND
2017-07-25DH*3743594ND
2017-07-25DH*3743593ND
2017-07-25DH*3743592ND
2017-10-02DH*3793206ND
2017-10-02DH*3793208ND
2017-10-02DH*3793210ND
2017-10-02DH*3793212ND
2018-01-03DH*3849264ND
2018-01-03DH*3849263ND
2018-01-03DH*3849262ND
2018-01-03DT*3849261ND
2018-04-03DH*3904587ND
2018-04-03DH*3904581ND
2018-04-03DH*3904583ND
2018-04-03DH*3904585ND
2018-07-03DH*3981195ND
2018-07-03DH*3981193ND
2018-07-03DH*3981191ND
2018-07-03DH*3981189ND
2018-10-01DH*4076595ND
2018-10-01DH*4076597ND
2018-10-01DH*4076599ND
2018-10-01DH*4076601ND
2019-01-144174578ND
2019-01-144174580ND
2019-01-144174582ND
2019-01-144174584ND
2019-04-014246438ND
2019-04-014246441ND
2019-04-014246440ND
2019-04-014246439ND
2019-07-094349253ND
2019-07-094349255ND
2019-07-094349254ND
2019-07-094349252ND
2019-10-014443806ND
2019-10-014443804ND
2019-10-014443802ND
2019-10-014443800ND