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EWG's Tap Water Database — 2021 UPDATE

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Chlorpyriphos

Weston, Village of

Chlorpyrifos is an organophosphate pesticide that has been widely used, but in 2021, application on food crops was banned by the EPA. Exposure to chlorpyrifos during pregnancy and early life harms the developing brain, including reduced IQ, delayed development of motor and sensory functions, and social and behavioral dysfunction.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND10ND
2016ND20ND
2017ND10ND
2018ND10ND
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-22278333ND
2014-04-23293532ND
2014-07-16308772ND
2014-10-16329559ND
2015-07-22374255ND
2016-08-03ND
2016-09-22ND
2017-07-26ND
2018-07-24560976ND
2019-07-29621284ND
2019-09-18619576ND