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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

City of Flagstaff

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

 

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
2014ND20ND
2015ND180ND
2016N/A00N/A
2017N/A00N/A
2018ND20ND
2019ND80ND

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
2014-08-27201408300317SND
2014-10-06201410070846SND
2015-04-14201504150294SND
2015-07-0820150709265SND
2015-07-0820150709264SND
2015-07-0820150709263SND
2015-07-09201507100128SND
2015-07-09201507100126SND
2015-07-09201507100124SND
2015-07-30201507310184SND
2015-08-27201508280194SND
2015-09-10201509120269SND
2015-10-07201510080415SND
2015-10-07201510080483SND
2015-10-07201510080461SND
2015-10-20201510070069SND
2015-10-21201510070066SND
2015-10-22201510070067SND
2015-10-26201510070060SND
2015-11-12201510070068SND
2018-06-11201806120451SND
2018-09-11201809130645SND
2019-01-23201901240323SND
2019-01-23201901240321SND
2019-03-12201903130529SND
2019-03-12201903130527SND
2019-07-22201907230337SND
2019-07-22201907230199SND
2019-09-25201909260284SND
2019-09-25201909260285SND