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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

City of Winston-Salem

Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND30ND
2016ND20ND
2017ND50ND
2018ND40ND
2019ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 7 ppb

The legal limit for dinoseb, established in 1992, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-068881-010614-EP2SND
2014-01-068881-010614-EP3SND
2014-01-068881-010614-EP1SND
2014-05-058881-050514-EP2SND
2014-05-058881-050514-EP3SND
2015-02-02ND
2015-02-02ND
2015-04-13ND
2016-01-118881-011116-EP1SND
2016-01-118881-011116-EP3SND
2017-01-238881-012317-EP1SND
2017-01-238881-012317-EP3SND
2017-01-238881-012317-EP2SND
2017-05-158881-051517-EP2SND
2017-05-158881-051517-EP3SND
2018-01-228881-012218-EP1SND
2018-04-028881-040218-EP1SND
2018-04-028881-040218-EP2SND
2018-04-028881-040218-EP3SND
2019-01-078881-010719-EP1SND