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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Redhill Water

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND20ND
20161.000 ppb21ND - 2.00 ppb
2017ND20ND
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
2014-02-2414058007701ND
2014-02-2414058007601ND
2014-04-1614107013801ND
2014-04-1614107013901ND
2014-07-1414198013301ND
2014-07-1414198013201ND
2015-04-2115113009001ND
2015-04-2115113008901ND
2016-04-1816112001201ND
2016-04-18161120011012.00 ppb
2017-05-1617138004601ND
2017-05-1617138004701ND
2018-04-1718109006501ND
2018-04-1718109006402ND
2019-04-1519108002501ND
2019-04-1519108002601ND