SITE DESCRIPTION: CRAB ORCHARD NATIONAL WILDLIFE REFUGE (OWNED BY DEPART- MENT OF INTERIOR) IS A PROPOSED NPL SITE DUE TO PCB CONTA- MINATION THREATENING A DRINKING WATER SUPPLY. SANGAMO ELECTRIC LEASED A BUILDING WITHIN THE REFUGE, USED IT TO MANUFACTURE PCB CAPACITORS, AND LEFT THE WASTE BEHIND.