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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

Hoke County Regional Water System

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

 

43

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
2014ND30ND
2015ND120ND
2016ND220ND
2017ND60ND
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
2014-03-182995646ND
2014-03-182995652ND
2014-03-182995627ND
2015-03-17ND
2015-03-23ND
2015-03-23ND
2015-06-01ND
2015-06-01ND
2015-08-18ND
2015-08-18ND
2015-08-18ND
2015-08-18ND
2015-12-15ND
2015-12-15ND
2015-12-15ND
2016-02-178139-021716-E23SND
2016-02-178139-021716-E26SND
2016-02-178139-021716-EP5SND
2016-02-178139-021716-EP9SND
2016-05-098139-050916-EP9SND
2016-05-118139-051116-EP5SND
2016-05-118139-051116-EP4SND
2016-05-118139-051116-EP2SND
2016-05-118139-051116-EP1SND
2016-05-118139-051116-E26SND
2016-06-158139-061516-E23SND
2016-06-158139-061516-E10SND
2016-07-068139-070616-EP3SND
2016-08-2237729_16-29222ND
2016-08-2237729_16-29224ND
2016-08-2237729_16-29225ND
2016-08-2237729_16-29227ND
2016-08-2337729_16-29213ND
2016-08-2337729_16-29223ND
2016-08-2337729_16-29226ND
2016-11-1537729_16-40273ND
2016-11-1537729_16-40274ND
2017-03-0737729_17-07905ND
2017-03-0737729_17-07907ND
2017-05-0237729_17-14772ND
2017-05-0237729_17-14774ND
2017-08-2237729_17-30211ND
2017-11-1537729_17-43225ND