1,3-Dichloropropene

City of Ceres

1,3-Dichloropropene is a volatile cancer-causing chemical primarily used as a nematocide to fumigate agricultural soils. It exists in two different forms: cis-1,3-dichloropropene and trans-1,3-dichloropropene.

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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
2013	N/A	0	N/A
2014	ND	5	ND
2015	N/A	0	N/A
2016	ND	7	ND
2017	ND	8	ND
2018	N/A	0	N/A
2019	ND	6	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.2 ppb

The EWG Health Guideline of 0.2 ppb for 1,3-dichloropropene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-07-10	5806-035-0940	ND
2014-07-10	5806-034-0800	ND
2014-07-10	5806-032-0840	ND
2014-07-10	5806-016-1120	ND
2014-07-10	5806-014-0800	ND
2016-07-12	5806-038-0925	ND
2016-07-12	5806-040-0855	ND
2016-07-12	5806-039-0848	ND
2016-07-12	5806-028-0945	ND
2016-07-12	5806-022-1235	ND
2016-07-12	5806-027-0810	ND
2016-07-12	5806-023-1320	ND
2017-07-20	5806-032-0720	ND
2017-07-20	5806-034-1110	ND
2017-07-20	5806-035-1040	ND
2017-07-20	5806-014-1245	ND
2017-07-20	5806-038-0830	ND
2017-07-20	5806-016-0910	ND
2017-07-20	5806-039-0940	ND
2017-07-20	5806-040-0930	ND
2019-07-09	5806-028-0915	ND
2019-07-09	5806-022-1125	ND
2019-07-09	5806-023-1015	ND
2019-08-19	5806-040-1420	ND
2019-08-19	5806-039-1415	ND
2019-10-08	5806-027-0930	ND