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EWG's Tap Water Database — 2021 UPDATE

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Chlorpyriphos

Gretna, City of

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.

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND110ND
2016ND10ND
2017ND20ND
2018ND50ND
2019ND140ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-13295503ND
2014-08-04311760ND
2015-05-26356549ND
2015-05-26356550ND
2015-05-26356551ND
2015-05-26356552ND
2015-05-26356553ND
2015-08-03375039ND
2015-08-03375040ND
2015-08-03375041ND
2015-08-03375043ND
2015-08-03375042ND
2015-10-13391386ND
2016-01-11ND
2017-05-08ND
2017-08-07ND
2018-05-14544418ND
2018-05-14544419ND
2018-05-14544420ND
2018-05-14544421ND
2018-08-13561106ND
2019-03-06110468RND
2019-03-06110463RND
2019-03-06110467RND
2019-03-06110464RND
2019-03-06110466RND
2019-03-06110465RND
2019-04-15605609ND
2019-07-09113361PND
2019-07-09113360PND
2019-07-09113362PND
2019-07-09113359PND
2019-07-09113363PND
2019-07-09113364PND
2019-08-12621565ND