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EWG's Tap Water Database — 2021 UPDATE

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Diazinon (Spectracide)

City of Davis

Diazinon is a toxic pesticide. The EPA banned residential uses in 2004 and restricted uses on food crops due to safety concerns. Diazinon exposures damage the nervous system, especially during gestation and childhood.

 

33

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
2015ND160ND
2016ND10ND
2017ND40ND
2018ND110ND
2019ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppb

The EWG Health Guideline of 1 ppb for diazinon was defined by the Environmental Protection Agency as a lifetime health-based limit for effects other than cancer. This health guideline protects against .

ppb = parts per billion

All test results

Date Lab ID Result
2015-07-075810-004-1253ND
2015-07-075810-052-0648ND
2015-07-075810-030-0919ND
2015-07-075810-026-1041ND
2015-07-075810-025-0832ND
2015-07-075810-024-1120ND
2015-07-075810-023-0904ND
2015-07-075810-020-0757ND
2015-07-075810-002-1333ND
2015-07-075810-006-1115ND
2015-07-075810-017-1030ND
2015-07-075810-016-0957ND
2015-07-075810-015-1321ND
2015-07-075810-010-1148ND
2015-07-075810-018-0721ND
2015-07-215810-009-0747ND
2016-01-265810-019-1005ND
2017-03-205810-057-1120ND
2017-06-145810-057-0820ND
2017-09-205810-057-0910ND
2017-12-125810-057-0735ND
2018-02-145810-057-0925ND
2018-04-185810-028-0855ND
2018-08-155810-028-0720ND
2018-08-155810-052-0930ND
2018-08-155810-057-0840ND
2018-08-155810-030-0640ND
2018-08-155810-025-0755ND
2018-08-155810-020-1001ND
2018-08-155810-019-0902ND
2018-08-155810-018-0819ND
2018-11-075810-028-0818ND
2019-02-065810-028-0820ND