Diazinon (Spectracide)

California Water Service (CWS) - Selma

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.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	ND	34	ND
2015	N/A	0	N/A
2016	N/A	0	N/A
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	N/A	0	N/A

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
2014-02-05	5810-013-1509	ND
2014-02-11	5810-005-0955	ND
2014-02-12	5810-022-1130	ND
2014-02-12	5810-018-1305	ND
2014-02-19	5810-001-0959	ND
2014-02-19	5810-004-1040	ND
2014-03-10	5810-038-1035	ND
2014-03-10	5810-036-0935	ND
2014-03-10	5810-007-1130	ND
2014-03-11	5810-023-1130	ND
2014-03-11	5810-021-1013	ND
2014-03-11	5810-014-0925	ND
2014-05-06	5810-001-1005	ND
2014-05-06	5810-004-1116	ND
2014-05-06	5810-005-1020	ND
2014-05-13	5810-022-0959	ND
2014-05-13	5810-018-1055	ND
2014-06-03	5810-013-1137	ND
2014-06-03	5810-038-1058	ND
2014-06-03	5810-036-1020	ND
2014-06-03	5810-021-0940	ND
2014-06-03	5810-014-1120	ND
2014-06-10	5810-023-1150	ND
2014-06-16	5810-010-1330	ND
2014-08-05	5810-005-1010	ND
2014-08-05	5810-004-1055	ND
2014-08-05	5810-001-1028	ND
2014-08-13	5810-022-1400	ND
2014-08-19	5810-018-1045	ND
2014-09-03	5810-021-0918	ND
2014-09-03	5810-023-1005	ND
2014-09-03	5810-014-1105	ND
2014-09-03	5810-038-1045	ND
2014-09-09	5810-013-1131	ND