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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

Westchester County Water District #1

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

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015N/A00N/A
2016ND20ND
2017ND20ND
2018ND30ND
2019ND20ND

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
2014-12-01AQ24568SOCND
2016-09-06AS19152 SOC WD#1ND
2016-09-06AS19150 SOC WD#1ND
2017-11-13AT23824SOCSND
2017-11-13AT23822SOCSND
2018-09-24AU20758WD1 SOCSND
2018-09-24AU20757WD1 SOCSND
2018-12-03AU25856WD1 SOCSND
2019-11-12AV23850D SOCSND
2019-11-12AV23849D SOCSND