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EWG's Tap Water Database — 2021 UPDATE

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Chlorpyriphos

Pomona Water Department

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.

 

30

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
2018ND250ND
2019ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-06-27201806270441ND
2018-06-27201806270442ND
2018-06-27201806270446ND
2018-06-27201806270443ND
2018-06-27201806270444ND
2018-06-27201806270447ND
2018-06-27201806270445ND
2018-06-28201806280474ND
2018-06-28201806280475ND
2018-06-28201806280476ND
2018-09-12201809120857ND
2018-09-12201809120856ND
2018-09-12201809120860ND
2018-09-12201809120859ND
2018-09-12201809120858ND
2018-12-13201812130859ND
2018-12-13201812130868ND
2018-12-13201812130865ND
2018-12-13201812130867ND
2018-12-13201812130860ND
2018-12-13201812130862ND
2018-12-13201812130863ND
2018-12-13201812130864ND
2018-12-13201812130866ND
2018-12-13201812130861ND
2019-03-13201903130446ND
2019-03-13201903130447ND
2019-03-13201903130448ND
2019-03-13201903130450ND
2019-03-13201903130449ND