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EWG's Tap Water Database — 2021 UPDATE

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Chlorpyriphos

City of Tempe

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.

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31

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
2018ND270ND
2019ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-04-09201804090343ND
2018-04-09201804090342ND
2018-04-09201804090341ND
2018-04-10201804100324ND
2018-04-10201804100323ND
2018-04-10201804100322ND
2018-04-11201804111100ND
2018-04-11201804111098ND
2018-04-11201804111097ND
2018-04-11201804111103ND
2018-04-11201804111101ND
2018-04-11201804111102ND
2018-04-16201804160524ND
2018-07-09201807090159ND
2018-07-09201807090158ND
2018-10-08201810080550ND
2018-10-08201810080549ND
2018-10-08201810080551ND
2018-10-08201810080548ND
2018-10-08201810080552ND
2018-10-09201810090396ND
2018-10-09201810090397ND
2018-10-09201810090398ND
2018-10-09201810090395ND
2018-10-09201810090390ND
2018-10-10201810100916ND
2018-11-13201811130408ND
2019-01-02201901020252ND
2019-01-03201901030467ND
2019-03-25201903250344ND
2019-05-02201905020282ND