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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

CTWC - Unionville System

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

 

28

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
2014ND80ND
2015ND40ND
2016N/A00N/A
2017ND40ND
2018N/A00N/A
2019ND120ND

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
2014-01-21BG01716SOC5ND
2014-01-21BG01717SOC5ND
2014-01-21BG01713SOC5ND
2014-01-22BG01714SOC5ND
2014-01-22BG01715SOC5ND
2014-01-22BG01718SOC5ND
2014-01-22BG01719SOC5ND
2014-02-14BG09385SOC5ND
2015-02-043181316ND
2015-06-033254568ND
2015-07-13BJ46102SOC5ND
2015-07-15BJ46999SOC5ND
2017-08-29BY91937SOC5ND
2017-08-29BY91939SOC5ND
2017-08-29BY91938SOC5ND
2017-11-21BZ45452SOC5ND
2019-09-17SOC 200549386ND
2019-09-17SOC 200549392ND
2019-09-25SOC 200550426ND
2019-09-25SOC 200550428ND
2019-09-25SOC 200550427ND
2019-10-02SOC 200551433ND
2019-10-02SOC 200551434ND
2019-10-09SOC 200552469ND
2019-10-10SOC 200552468ND
2019-10-10SOC 200552467ND
2019-10-10SOC 200552466ND
2019-10-10SOC 200552465ND