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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

Mendota

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

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND40ND
2017ND10ND
2018ND20ND
2019ND10ND

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
2016-01-1916A0415-01_01ND
2016-04-1216D0303-01_01ND
2016-07-2016G0982-01_01ND
2016-11-0216K0119-01_01ND
2017-01-1117A0380-01_01ND
2018-01-2418A0504-01_01ND
2018-01-2418A0504-03_01ND
2019-03-1119C0231-01ND