Dichlorodifluoromethane

City of Ceres

Dichlorodifluoromethane (Freon-12) is a refrigerant, solvent and aerosol propellant banned in 2000 under the Montreal Protocol because of its ozone-depleting properties. Freons can cause heart, nervous system and liver damage.

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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	ND	4	ND
2016	ND	8	ND
2017	ND	8	ND
2018	N/A	0	N/A
2019	ND	6	ND

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
2015-01-28	5806-039-1130	ND
2015-01-28	5806-040-1120	ND
2015-04-08	5806-039-0820	ND
2015-04-08	5806-040-0805	ND
2016-07-12	5806-039-0848	ND
2016-07-12	5806-038-0925	ND
2016-07-12	5806-040-0855	ND
2016-07-12	5806-028-0945	ND
2016-07-12	5806-027-0810	ND
2016-07-12	5806-023-1320	ND
2016-07-12	5806-022-1235	ND
2016-11-15	5806-027-0950	ND
2017-07-20	5806-040-0930	ND
2017-07-20	5806-038-0830	ND
2017-07-20	5806-039-0940	ND
2017-07-20	5806-014-1245	ND
2017-07-20	5806-035-1040	ND
2017-07-20	5806-034-1110	ND
2017-07-20	5806-032-0720	ND
2017-07-20	5806-016-0910	ND
2019-07-09	5806-028-0915	ND
2019-07-09	5806-023-1015	ND
2019-07-09	5806-022-1125	ND
2019-08-19	5806-039-1415	ND
2019-08-19	5806-040-1420	ND
2019-10-08	5806-027-0930	ND