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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

Chester Metro

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

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2014-03-19AD37321ND
2014-05-22AD40277ND
2014-07-02AD42008ND
2014-12-10AD49189ND
2015-03-19AD53201ND
2016-02-11AD70602ND
2017-01-17AD88371ND
2017-05-31AD95074ND
2017-07-10AD96985ND
2017-10-02AE01287ND
2018-02-20AE07960ND
2018-06-12AE13527ND
2018-08-13AE16563ND
2018-10-08AE19334ND
2019-01-22AE24388ND
2019-04-02AE28110ND
2019-07-02AE33058ND
2019-10-02AE38147ND