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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Town of Berwick

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

 

68

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.31 ppb1610ND - 3.40 ppb
2015ND40ND
20160.268 ppb164ND - 1.20 ppb
2017ND160ND
2018ND160ND
20191.20 ppb168ND - 2.70 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
2015-10-07680-117680-9ND
2015-10-07680-117680-10ND
2015-10-07680-117680-9ND
2015-10-07680-117680-10ND
2016-01-12680-120925-30.940 ppb
2016-01-12680-120925-41.20 ppb
2016-01-12680-120925-41.20 ppb
2016-01-12680-120925-30.940 ppb
2016-04-13680-124146-3ND
2016-04-13680-124146-4ND
2016-04-13680-124146-4ND
2016-04-13680-124146-3ND
2016-07-13680-127618-7ND
2016-07-13680-127618-8ND
2016-07-13680-127618-8ND
2016-07-13680-127618-7ND
2016-10-19680-131162-3ND
2016-10-19680-131162-4ND
2016-10-19680-131162-4ND
2016-10-19680-131162-3ND
2017-01-0435287390017ND
2017-01-0435287390018ND
2017-01-0435287390018ND
2017-01-0435287390017ND
2017-04-1035305961004ND
2017-04-1035305961003ND
2017-04-1035305961004ND
2017-04-1035305961003ND
2017-07-1135323373004ND
2017-07-1135323373003ND
2017-07-1135323373003ND
2017-07-1135323373004ND
2017-10-0635340632002ND
2017-10-0635340632001ND
2017-10-0635340632001ND
2017-10-0635340632002ND
2018-01-1135368136001ND
2018-01-1135368136002ND
2018-01-1135368136001ND
2018-01-1135368136002ND
2018-04-1035385300001ND
2018-04-1035385300002ND
2018-04-1035385300001ND
2018-04-1035385300002ND
2018-07-0235401874001ND
2018-07-0235401874002ND
2018-07-0235401874001ND
2018-07-0235401874002ND
2018-10-1135424006001ND
2018-10-1135424006002ND
2018-10-1135424006001ND
2018-10-1135424006002ND
2019-01-10354417940022.70 ppb
2019-01-10354417940011.80 ppb
2019-01-10354417940011.80 ppb
2019-01-10354417940022.70 ppb
2019-04-03354596380022.70 ppb
2019-04-03354596380022.70 ppb
2019-04-03354596380012.40 ppb
2019-04-03354596380012.40 ppb
2019-07-1135481772002ND
2019-07-1135481772001ND
2019-07-1135481772001ND
2019-07-1135481772002ND
2019-10-0335502561001ND
2019-10-0335502561002ND
2019-10-0335502561001ND
2019-10-0335502561002ND