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EWG's Tap Water Database — 2021 UPDATE

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Chlorpyriphos

Nob Hill Water Association

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.

 

9

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
2019ND90ND

ppb = parts per billion

All test results

Date Lab ID Result
2019-04-2919-14919-30087ND
2019-04-2919-14919-30088ND
2019-04-2919-14919-30089ND
2019-04-2919-14919-30090ND
2019-05-2819-19340-38060ND
2019-10-0119-37906-73630ND
2019-10-0119-37906-73631ND
2019-10-0119-37906-73632ND
2019-11-2519-45201-87382ND