bernard owns a warehouse near the river. bernard receives a notice from the environmental protection agency that the property on which the warehouse sits contains toxic chemicals left there by a previous owner. the previous owner is surefine oil company. during the time that surefine oil company owned the property, surefine allowed fleming electric to dispose of polychlorinated biphenyls (pcbs) on the property. the estimated cost to clean up the property is $100,000. the parties who will be held responsible for cleaning up the pcbs from the property are: