Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chlorpyriphos

Cassatt Water Kershaw-lee Company RWA

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.

MORE ABOUT THIS CONTAMINANT

 

28

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
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND270ND

ppb = parts per billion

All test results

Date Lab ID Result
2019-03-254237165ND
2019-03-254237169ND
2019-03-254237160ND
2019-03-254237113ND
2019-03-254237181ND
2019-03-254237127ND
2019-03-254237079ND
2019-03-254237097ND
2019-03-254237140ND
2019-03-254237093ND
2019-03-254237151ND
2019-03-254237175ND
2019-03-264238761ND
2019-06-134325088ND
2019-09-254437191ND
2019-09-254436805ND
2019-09-254437295ND
2019-09-254437171ND
2019-09-254437340ND
2019-09-254437395ND
2019-09-254437401ND
2019-09-264437020ND
2019-09-264437305ND
2019-09-264437278ND
2019-09-264437426ND
2019-09-264436948ND
2019-09-264437201ND
2020-01-284551581ND