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EWG's Tap Water Database — 2021 UPDATE

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Chlorpyriphos

Westford 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.

 

5

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
2018ND50ND
2019N/A00N/A

ppb = parts per billion

All test results

Date Result
2018-07-17ND
2018-07-17ND
2018-09-20ND
2018-10-10ND
2018-10-10ND