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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

West Winn Water System Inc.

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

MORE ABOUT THIS CONTAMINANT

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND140ND
2015N/A00N/A
2016N/A00N/A
2017ND140ND
2018N/A00N/A
2019N/A00N/A

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
2014-02-03AD88840ND
2014-02-03AD88838ND
2014-02-03AD88837ND
2014-02-03AD88839ND
2014-02-03AD88840ND
2014-02-03AD88841ND
2014-02-03AD88839ND
2014-02-03AD88838ND
2014-02-03AD88837ND
2014-02-03AD88841ND
2014-02-24AD89382ND
2014-02-24AD89381ND
2014-02-24AD89381ND
2014-02-24AD89382ND
2017-01-1135288762005ND
2017-01-1135288762004ND
2017-01-1135288762003ND
2017-01-1135288762002ND
2017-01-1135288762001ND
2017-01-1135288762002ND
2017-01-1135288762003ND
2017-01-1135288762004ND
2017-01-1135288762005ND
2017-01-1135288762001ND
2017-09-2635338631001ND
2017-09-2635338631002ND
2017-09-2635338631001ND
2017-09-2635338631002ND