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EWG's Tap Water Database — 2021 UPDATE

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Chlorpyriphos

Truckee Meadows Water Authority

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.

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126

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
2018ND360ND
2019ND480ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-04-04201804060439ND
2018-04-04201804060344ND
2018-04-04201804060339ND
2018-04-09201804111125ND
2018-04-11201804130377ND
2018-04-11201804130346ND
2018-04-11201804130367ND
2018-04-11201804130355ND
2018-04-24201804260527ND
2018-04-24201804260533ND
2018-04-25201804270760ND
2018-05-02201805040249ND
2018-05-02201805040251ND
2018-05-15201805170784ND
2018-05-15201805170739ND
2018-05-15201805170738ND
2018-05-21201805230811ND
2018-05-21201805230816ND
2018-05-23201805250617ND
2018-07-028G03058-01ND
2018-07-028G03025-01ND
2018-10-028J04025-01ND
2018-10-028J04025-03ND
2018-10-028J04025-05ND
2018-10-028J04025-07ND
2018-10-098J11027-03ND
2018-10-098J11027-01ND
2018-10-098J11042-01ND
2018-10-098J11042-03ND
2018-10-098J11040-01ND
2018-10-098J11040-03ND
2018-10-108J11041-01ND
2018-10-158J17032-01ND
2018-11-278K29207-01ND
2018-11-278K29207-02ND
2018-11-298K30047-01ND
2019-01-079A09073-01ND
2019-01-089A10017-01ND
2019-01-089A10020-02ND
2019-01-089A10020-01ND
2019-01-089A10019-01ND
2019-01-099A11018-02ND
2019-01-099A11018-01ND
2019-01-149A16012-02ND
2019-01-149A16012-01ND
2019-01-169A18050-01ND
2019-01-179A18050-02ND
2019-01-229A24016-01ND
2019-01-229A24014-01ND
2019-01-249A25042-01ND
2019-01-299A31017-01ND
2019-02-049B06009-01ND
2019-02-049B06033-01ND
2019-02-049B06007-01ND
2019-02-049B06007-02ND
2019-02-069B11034-02ND
2019-02-069B11034-01ND
2019-02-129B14136-01ND
2019-02-129B14136-02ND
2019-02-129B14136-03ND
2019-02-129B14136-04ND
2019-02-129B14136-05ND
2019-05-229E24039-01ND
2019-05-229E24038-01ND
2019-07-019G03074-01ND
2019-07-019G03069-01ND
2019-07-019G03070-01ND
2019-07-019G03072-01ND
2019-07-019G03075-01ND
2019-07-019G03071-01ND
2019-07-099G11057-01ND
2019-07-099G11062-01ND
2019-07-099G11039-01ND
2019-07-099G11061-01ND
2019-07-259G26040-01ND
2019-07-259G26037-01ND
2019-07-299G31032-01ND
2019-07-309H01034-01ND
2019-08-069H08029-01ND
2019-08-069H08026-01ND
2019-08-069H08023-01ND
2019-08-079H09029-01ND
2019-09-269I27055-02ND
2019-09-269I27055-01ND
2020-01-020A03031-01ND
2020-01-020A03035-01ND
2020-01-020A03032-01ND
2020-01-020A03034-01ND
2020-01-020A03027-01ND
2020-01-020A03029-02ND
2020-01-020A03028-01ND
2020-01-020A03030-01ND
2020-01-290A31022-01ND
2020-02-110B13020-01ND
2020-02-110B13025-01ND
2020-02-110B13022-01ND
2020-02-110B13019-01ND
2020-02-110B13016-01ND
2020-02-110B13023-01ND
2020-02-110B13018-01ND
2020-04-210D23043-01ND
2020-04-220D23042-01ND
2020-04-220D23048-01ND
2020-07-070G09034-01RE1ND
2020-07-070G09034-02RE1ND
2020-07-070G09037-01RE1ND
2020-07-070G09035-01RE1ND
2020-07-070G09037-02RE1ND
2020-07-070G09035-02RE1ND
2020-07-070G09021-01RE1ND
2020-07-070G09036-01RE1ND
2020-07-070G09021-02RE1ND
2020-08-040H06039-01ND
2020-08-040H06056-02ND
2020-08-040H06055-01ND
2020-08-040H06055-02ND
2020-08-040H06040-01ND
2020-08-040H06040-02ND
2020-08-060H06056-01ND
2020-08-250H27051-01ND
2020-08-250H27038-01ND
2020-10-050J07037-01ND
2020-10-050J07034-01ND
2020-10-050J07040-01ND
2020-10-050J07041-01ND
2020-10-050J07039-01ND