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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Henry County Public Water Supply District 3

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

 

52

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND120ND
2015ND80ND
2016ND80ND
2017ND80ND
2018ND80ND
20190.733 ppb81ND - 5.86 ppb

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
2014-01-10AC16686ND
2014-01-10AC16687ND
2014-01-10AC16688ND
2014-01-10AC16685ND
2014-04-17AC21592ND
2014-04-17AC21593ND
2014-04-17AC21594ND
2014-04-17AC21595ND
2014-07-24AC30618ND
2014-07-24AC30621ND
2014-10-21AC37645ND
2014-10-21AC37646ND
2015-01-20AC40370ND
2015-01-20AC40369ND
2015-04-15AC45039ND
2015-04-15AC45040ND
2015-07-15AC54273ND
2015-07-15AC54272ND
2015-10-21AC61202ND
2015-10-21AC61201ND
2016-01-21AC65009ND
2016-01-21AC65008ND
2016-05-23AC69367ND
2016-05-23AC69368ND
2016-09-13AC85044ND
2016-09-13AC85045ND
2016-11-29AC86276ND
2016-11-29AC86275ND
2017-01-17AC89085ND
2017-01-17AC89086ND
2017-04-06AC94447ND
2017-04-06AC94448ND
2017-07-13AD01385ND
2017-07-13AD01384ND
2017-10-16AD07884ND
2017-10-16AD07883ND
2018-01-22AD11325ND
2018-01-22AD11326ND
2018-04-16AD17998ND
2018-04-16AD17999ND
2018-07-16AD29161ND
2018-07-16AD29162ND
2018-10-18AD34400ND
2018-10-18AD34401ND
2019-01-14AD37709ND
2019-01-14AD37710ND
2019-04-29AD46129ND
2019-04-29AD46130ND
2019-07-15AD51779ND
2019-07-15AD51780ND
2019-10-14AD567145.86 ppb
2019-10-14AD56715ND