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EWG's Tap Water Database — 2021 UPDATE

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Chlorpyriphos

DCWA Knightsville

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
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND50ND
2019ND60ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-08-274040895ND
2018-08-274041268ND
2018-08-274041149ND
2018-11-144124678ND
2018-11-144124664ND
2019-02-264209993ND
2019-02-264210020ND
2019-02-264210150ND
2019-02-264210493ND
2019-02-264210086ND
2019-05-214303126ND