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EWG's Tap Water Database — 2021 UPDATE

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Chlorpyriphos

Suburban Water Systems - La Mirada

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.

 

8

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
2018ND30ND
2019ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-10-25201810010133ND
2018-10-25201810010137ND
2018-10-25201810010138ND
2019-01-089A08045-01ND
2019-04-25201904250234ND
2019-04-25201904250217ND
2019-04-25201904250229ND
2019-04-25201904250231ND