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EWG's Tap Water Database — 2021 UPDATE

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Diazinon (Spectracide)

California Water Service Company - Dixon

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND80ND
2016ND30ND
2017N/A00N/A
2018ND40ND
2019ND20ND

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
2014-09-165810-005-1052ND
2014-10-165810-008-1445ND
2014-10-295810-006-0840ND
2014-10-295810-002-1007ND
2014-12-175810-007-1105ND
2014-12-175810-005-1608ND
2014-12-175810-003-1015ND
2014-12-305810-004-1152ND
2014-12-305810-002-1152ND
2015-01-055810-006-1351ND
2015-01-215810-002-0937ND
2015-01-215810-008-1103ND
2015-03-039590-002-0902ND
2015-03-259590-008-0850ND
2015-03-319590-009-1057ND
2015-04-159590-007-1445ND
2015-05-209590-003-0910ND
2016-04-069590-017-1123ND
2016-06-139590-020-1700ND
2016-07-209590-017-1340ND
2018-04-049590-002-0918ND
2018-04-059590-008-1337ND
2018-07-029590-002-1500ND
2018-07-109590-008-1540ND
2019-04-029590-017-1547ND
2019-07-029590-017-1330ND