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MINE ID # OR PROSPECTING ID#: M-1977-342 PAGE: 3 INSPECTION DATE: 3-24-03 INSPECTOR'S INITIALS: ACS result, surface runoff from affected land is for the most part routed to the tailing pond, and ground water flows beneath affected land, for the most part, concentrate in the Ute Creek valley below the mill tailing. As a result, any leachate from the current or previous Henderson landfills would be commingled with the leachate from the massive impoundment of mill tailing. Ground and surface water controls below 1-Dam have been installed by Henderson and are a regulatory component of the mined land reclamation permit. Tailing leachate is collected in a system of under drains and routed via a seep water canal to the Ute Park pump station and is pumped back to the Henderson process water system. Also, over the past several years, Henderson has installed a well field below 1-Dam to capture and pump back ground water flows in the relatively more permeable alluvial gravel deposits of the Ute Creek valley (reference, technical revision TR-10). In addition, ground water quality monitoring wells have been installed below 1-Dam to detect potential process water influences on ground water quality before adverse impact to the Williams Fork could occur. Since the landfill wastes have essentially been co-disposed with the mill tailing, and since ground water quality below the tailing impoundment is being managed and monitored, possible ground water impacts from the landfills are also being managed and monitored. At landfill no. 7, Henderson has posted a large and highly visible sign listing restrictions on the types of waste that may not be dumped. A photo (photo no. 1) of this sign is attached to this report. The basic operation of the landfill involves weekly collection from the mill site dumpsters, trucking and dumping of the collected trash at the edge of the landfill, and periodic pushing of the trash into the landfill. Cover soil is applied as needed to control blowing trash; cover is usually not necessary during the winter. A photo of recently dumped trash (photo no. 2) is attached to this report. The recently dumped trash consisted primarily of fiberglass air filters and employee lunch waste (sandwich wrappers, milk cartons, etc.). Henderson reports that previously cardboard, office paper, and a small number of tires were dumped in the landfills. Now all of these materials are recycled, as discussed below. The Henderson Environmental Department formally inspects and issues a written report on the operation of the landfill on a semi-annual basis. Henderson reports that informal landfill inspections are conducted on a high frequency and that any problems noted during informal inspections are corrected internally. In addition, proper use of the landfill is covered in annual training of all Henderson Mill employees. Henderson's scrap metal recycling program was inspected. There are two dumpsters belonging to the scrap metal company Iron and Metals Inc. of Denver located behind the mill building. When the dumpsters are filled, Iron and Metal swaps them out with an empty dumpster. Photos of these dumpsters (photos 3 and 4) are attached to this report.