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Mine Buildings Location of mine operations office buildings <br />Maximum Waste Rock This area includes the waste rock dump, storage area, parking area for mine <br />Footprint, Storage, Parking, offices, and a maintenance area. This is also the area where equipment will be <br />and Maintenance Area parked and maintained. <br /> Boundary that represents the operational limits of the mine under permit M- <br />Mine Permit Boundary 2005-050 <br />Drainage Area Used For This was the drainage area that was used to model the 25year/6Hr/1.6" event <br />Stormwater Containment Basin for the sizing of the stormwater containment basin. <br />Calculation <br />3. Stormwater Management Controls <br />Various Stormwater management controls have been in place since the historic mining activities <br />took place. A significant number of these historic features are effective and will remain in place. <br />Others (such as the Stormwater containment basin) will be enhanced in order to accommodate <br />predicted flow conditions. A summary of the best management practices to be used within the <br />permitted area of the mine site are as follows; <br />• Water bars will be used to divert stormwater flows away from the ore pad, roads, and on <br />site facilities. <br />• Bar ditches along the county road to control stormwater flows and eliminate erosion of <br />soils. <br />• Stormwater containment basin (lined with blue clay in order to retain water for <br />evaporation) will collect combined flows from the site features thereby eliminating any <br />offsite runoff. <br />• Reclamation of disturbed areas will be an ongoing practice during mining activities in <br />order to minimize the amount of exposed surface area. Disturbed ground will be covered <br />with retained top soil and reseeded using BLM approved seed mixes. <br />• Soil generation areas will be created to increase the amount of useable topsoil for <br />reclamation efforts. <br />a. SWMP Administrator <br />BEC is responsible for any and all environmental issues related to the mine inclusive of <br />Stormwater and associated permitting. The point of contact for BEC in regards to mine <br />site SWMP is: Tim Pierce: phone: (970) 865-2883. <br />Bluerock Energy Corp. J Birds Mine: Stormwater Management Permit Application 12/13/07 <br />