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Mr.Dustin Czapla <br /> Page 3 of 4 <br /> Indian Rock Dump Surface Disturbance and Reclamation <br /> A total of approximately 0.2 acres of previously disturbed and reclaimed ground will be <br /> used during piezometer drilling and completion (Figure 2). Drill cuttings will be spread and <br /> incorporated into the surface waste rock on the Indian Rock Dump at the piezometer <br /> locations.The disturbed areas will be reclaimed once the piezometers are no longer being <br /> used as part of reagent injections and long-term monitoring program associated with the <br /> field testing and full-scale implementation. When warranted, the piezometers will be <br /> plugged in accordance with Rule 16 of the Water Well Construction Rules and disturbed <br /> ground will be re-contoured and revegetated. <br /> Additional Field Activities <br /> The underground mine workings injections, ETC pilot test, and treatment residuals <br /> management program will require staging of water/reagent storage vessels and <br /> conveyance equipment as shown in Figure 2. Specifically: <br /> • The larger-scale underground mine workings injections will use the same <br /> infrastructure established near Piezometer P-11 in 2015, while additional <br /> infrastructure (e.g., tanks, plastic totes, flow meters, pumps, and conveyance <br /> piping) will be staged on the drill pad constructed next to Piezometer P-12 in <br /> 2015, requiring no additional surface disturbance. <br /> • The ETC pilot tests will be staged at the end of the road leading to the Tie Camp <br /> Drainage monitoring point (TCC), below the Tie Camp Rock Dump. Pilot test <br /> equipment will include solid-phase media emplaced in up to five drums (55-gallon <br /> or smaller), flow meters, pumps, and conveyance piping. Safe staging/handling <br /> of the equipment will likely require limited clearing of vegetation and leveling of <br /> ground surface along and adjacent to the roadway leading past TCC, consistent <br /> with typical site/road maintenance conducted at the mine site. <br /> • The treatment residuals management equipment (e.g., dosing tanks, plastic <br /> totes, flow meters, pumps, and conveyance piping) will be staged on flat ground <br /> next to Indian Drainage along the side of the road and/or on the bank of the <br /> Sediment Pond. No surface disturbance is anticipated to occur as a result of the <br /> treatment residuals management activities. <br /> Summary <br /> An integral component to establishing a practical, technically achievable and sustainable <br /> LPL is the development of BMPs for uranium load reduction at this high elevation mine <br /> site with limited year-round access. Initial pilot testing in the historical Pinnacle <br /> underground mine workings at the Pitch Reclamation Project was successful at treating <br /> uranium in groundwater, including desired attenuation of the injected phosphate. The <br /> primary goal of the Phase 2 field activities is to achieve measureable uranium load <br /> reduction in downgradient surface water. Based on this goal, expansion of the <br /> underground mine workings treatment using larger-scale phosphate-based injections and <br /> 460 West 5o North,Suite 500,Salt Lake City,Utah 84101 TEL:(801)990-3547 <br />