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EWG's Tap Water Database — 2021 UPDATE

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Chlorpyriphos

Fairfax County Water Authority

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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23

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
2018N/A00N/A
2019ND60ND

ppb = parts per billion

All test results

Date Lab ID Result
2019-12-11201912120177ND
2019-12-11201912120173ND
2019-12-11201912120174ND
2019-12-11201912120178ND
2019-12-11201912120176ND
2019-12-11201912120175ND
2020-03-04202003050190ND
2020-03-04202003050193ND
2020-03-04202003050194ND
2020-03-04202003050192ND
2020-03-04202003050191ND
2020-06-10202006120185ND
2020-06-10202006120188ND
2020-06-10202006120184ND
2020-06-10202006120186ND
2020-06-10202006120183ND
2020-06-10202006120187ND
2020-09-02202009040137ND
2020-09-02202009040136ND
2020-09-02202009040135ND
2020-09-02202009040134ND
2020-09-02202009040133ND
2020-09-02202009040132ND