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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

Pagosa Area WSD

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

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND50ND
2015N/A00N/A
2016N/A00N/A
2017ND80ND
2018ND110ND
2019ND60ND

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 Result
2014-04-15ND
2014-04-15ND
2014-08-12ND
2014-08-12ND
2014-08-21ND
2017-01-24ND
2017-01-24ND
2017-02-01ND
2017-02-01ND
2017-06-05ND
2017-06-05ND
2017-08-14ND
2017-08-14ND
2018-01-31ND
2018-01-31ND
2018-01-31ND
2018-01-31ND
2018-05-16ND
2018-07-17ND
2018-07-17ND
2018-07-17ND
2018-08-13ND
2018-10-17ND
2018-10-17ND
2019-06-18ND
2019-06-18ND
2019-06-18ND
2019-08-13ND
2019-11-25ND
2019-11-25ND