ON 10/04/91 WASTE MANAGEMENT OF ILLINOIS, INC. VOLUNTARILY DISCLOSED THAT IT HAD SENT PCB WASTE LIQUID GENERATED FROM ITS CID AREA 3 LANDFILL MONITORING WELLS TO CHEMICAL WASTE FOR DISPOSAL IN ITS CID AREA 4 LANDFILL. CHEMICAL WASTE ACCEPTED AND DISPOSED OF THE 150 GRAMS OF PCB WASTE WITHOUT NOTIFYING EPA OF THIS ACTIVITY AND WITHOUT PROPERLY INCINERATING THE PCB LIQUID.