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EWG's Tap Water Database — 2021 UPDATE

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Diazinon (Spectracide)

California Water Service - Stockton

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.

 

59

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND190ND
2015ND90ND
2016ND20ND
2017ND40ND
2018ND120ND
2019ND130ND

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
2014-06-035810-013-1142ND
2014-06-035810-028-1105ND
2014-06-035810-055-1405ND
2014-06-045810-067-1157ND
2014-06-105810-015-1058ND
2014-06-235810-065-1043ND
2014-07-015810-130-0929ND
2014-07-015810-045-1052ND
2014-07-025810-132-1000ND
2014-07-025810-052-1100ND
2014-07-025810-053-1109ND
2014-08-055810-056-1152ND
2014-08-055810-063-0950ND
2014-08-055810-064-1118ND
2014-08-065810-007-1047ND
2014-08-145810-062-1120ND
2014-10-015810-029-1032ND
2014-10-075810-050-1236ND
2014-10-155810-058-1050ND
2015-01-225810-054-1255ND
2015-03-119590-018-1247ND
2015-03-129590-054-1345ND
2015-06-019590-051-1236ND
2015-06-109590-130-1139ND
2015-09-229590-130-1111ND
2015-10-269590-060-1145ND
2015-11-199590-059-1056ND
2015-12-099590-018-0553ND
2016-02-239590-061-1110ND
2016-04-139590-051-1200ND
2017-04-189590-133-1146ND
2017-04-259590-051-1238ND
2017-10-109590-133-1110ND
2017-10-109590-058-0950ND
2018-01-029590-054-1115ND
2018-01-039590-133-0950ND
2018-04-059590-133-1320ND
2018-04-119590-050-1225ND
2018-04-189590-051-1125ND
2018-06-059590-060-1100ND
2018-06-059590-059-1255ND
2018-06-059590-130-1405ND
2018-07-099590-133-1100ND
2018-07-099590-056-1305ND
2018-09-059590-130-1446ND
2018-10-099590-133-1325ND
2019-01-029590-133-1301ND
2019-02-149590-061-1430ND
2019-02-279590-051-1027ND
2019-04-029590-051-1035ND
2019-04-029590-133-1235ND
2019-05-089590-007-1120ND
2019-05-229590-053-1125ND
2019-06-119590-130-1140ND
2019-07-099590-133-1400ND
2019-09-049590-130-1250ND
2019-10-019590-067-1150ND
2019-10-029590-028-1300ND
2019-10-099590-133-1059ND