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EWG's Tap Water Database — 2021 UPDATE

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Chlorpyriphos

California American Water Company - Monterey

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.

 

22

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
2018ND190ND
2019ND30ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-04-0339233501ND
2018-04-0339233001ND
2018-04-0339233401ND
2018-04-0339233301ND
2018-04-0339233201ND
2018-04-0439233901ND
2018-05-0139233801ND
2018-06-2140280801ND
2018-07-0240320501ND
2018-07-0239233701ND
2018-07-1840620501ND
2018-10-0141662001ND
2018-10-0941661801ND
2018-10-0941661201ND
2018-10-1041662101ND
2018-12-1841661401ND
2018-12-1841661501ND
2018-12-2041661601ND
2018-12-2041661701ND
2019-01-0941661301ND
2019-01-0942431801ND
2019-02-2741661901ND