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Surface Facilities (List) <br />a. Waste Rock Pile <br />b. Ore Stockpile Area <br />c. Topsoil Excavation and Stockpile Areas <br />d. Water Treatment Facility <br />e. Fuel and Oil Storage Areas <br />f. Maintenance Shops and Warehouse <br />g. Mine Access Roads and Pads <br />h. Utilities <br />i. Ventilation Shafts <br />a. Waste Rock Pile <br />The existing bench at the JD -9 portal was made from waste rock excavated from the <br />driving of the decline along with waste rock generated as part of mining the ore. <br />Waste rock was also placed in a small area of the drainage immediately west of the <br />portal area during past mining operations. The toe of the waste pile will be moved <br />out of the drainage as part of this amendment. See Exhibit C — Maps, Figure C2 for <br />the configuration of the current bench. See Exhibit C — Maps, Figure C4 for the <br />planned view of the expanded waste rock embankment. The slopes will also be <br />reworked to be 2H:1 V. <br />The waste rock pile will be expanded to the south. It will be hauled to the pile by <br />low - profile trucks or "buggies," and dumped down the slope. Loaders and /or dozers <br />will be used to configure the embankment to its final slope. Repeated travel over the <br />pile by the loaded rubber -tired buggies will compact the material creating a low - <br />permeable surface. The waste rock pile will have an additional capacity adequate to <br />contain most of the waste rock generated during the projected six -year mine life. The <br />remaining waste rock will be disposed of underground in mined -out areas. <br />Permanent diversions will keep undisturbed runoff from entering the waste rock <br />embankment from the uphill areas to the north. A full discussion on drainage of the <br />waste rock embankment can be found in Appendix III — Drainage Design Plan. <br />Recent samples of the waste rock were taken by Cotter from the waste pile. These <br />samples were analyzed for chemical content and then tested using the Synthetic <br />Precipitation Leaching Procedure (SPLP), which is the Division's recommended <br />procedure for determining whether mine waste has the potential to environmentally <br />impact surface or groundwater. The results of this test are discussed in <br />Exhibit U — EPP. <br />