THIS CASE INVOLVES CLEANUP, BY TIME CRITICAL REMOVAL ACTION, OF PCB AND HEAVY METAL CONTAMINATION AT THE FACILITY PREVIOUSLY OWNED AND OPERATED BY WILLIAMS NATURAL GAS CO., KNOWN AS THE PIERCE CITY COMPRESSOR STATION. THE PIERCE CITY COMPRESSOR STATION, LOCATED NEAR PIERCE CITY, MO, WAS PART OF A MAIN-LINE NATURAL GAS TRANSMISSION SYSTEM OWNED AND OPERATED BY WILLIAMS NATURAL GAS CO. COMPRESSED AIR IS USED TO START THE NATURAL GAS COMPRESSORS USED TO MOVE THE NATURAL GAS THROUGH THE TRANSMISSION LINES. LUBRICANTS CONTAINING PCBS ARE BELIEVED TO HAVE BEEN USED IN THE AIR COMPRESSOR SYSTEM. THE PCBS CONTAMINATED CONDENSATES WHICH FORM IN THE AIR COMPRESSOR SYSTEM. PCBS WERE RELEASED TO THE ENVIRONMENT ALONG WITH THESE CONDENSATES. THE FACILITY IS NO LONGER OWNED OR OPERATED BY WILLIAMS. IT IS CURRENTLY USED AS AN OFFICE/WAREHOUSE BY A COMMERCIAL BUSINESS. THE PIERCE CITY COMPRESSOR STATION WAS ONE OF SEVERAL COMPRESSOR STATIONS FOR WHICH WILLIAMS CONDUCTED SITE INVESTIGATIONS PURSUANT TO AN ADMINISTRATIVE CONSENT ORDER. WE ANTICIPATE NEGOTIATING A FOLLOWUP CONSENT ORDER CALLING FOR WILLIAMS TO CONDUCT THE REMOVAL ACTION DETERMINED TO BE NECESSARY AS A RESULT OF THE INFORMATION OBTAINED IN THIS SITE INVESTIGATION.