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PARTI <br />Page No. l3 <br />Permit No.: CO-0038776 <br />Inactive Mining Areas <br />The S WMP shall include the following items for the inactive portions of the site, at a minimum: <br />i) Description of Mining Ac6vifies <br />The plan shall provide a nanative description of the mining and associated activities that took place at the site. The <br />narrahve description shall report the approxunate dates of operation, the total acreage within the mme site and an estimate <br />of the number of acres of disturbed area. A general description .of the location of the mining site relative to major <br />transportation routes and communities shall also be provided. <br />ii) Site Man <br />Each plan shall provide a generalized site map or ma s which indicate any of the following which may be applicable: <br />- mimng/rmlling site boundaries and access and haul roads; <br />- azeas used for storage of overburden, materials, soils, tailings or wastes; <br />- azeas used for outdoor manufacturing, storage or disposal of materials; <br />- tailings piles and ponds; <br />- an estmtate of the direction(s) of surface flow; <br />- existing stmctural control measures to reduce pollutants in stormwater runoff; and <br />- springs, streams, wetlands and other surface waters. <br />iii) Storrttwater Management Controls - Identificafion of Sources and Best Management Practices <br />The SWMP shall identify otential sources of pollutants at the site and' assess the potential of these sources to contribute <br />pollutants to stonnwater dpscharges associated with mining activities. The SWMP must also describe appropriate Best <br />Management practices (BMPs) to reduce the potential of these sources to contribute pollutants to stonnwater dischazges. <br />The a ropnateness and priorities of controls in the plan shall reflect identified potential sources of pollutants at the mining <br />site. The description of the BMPs shall include: <br />a) Stormwater Diversion: Describe how and where stormwater will be diverted away from potential pollutant sources [o <br />prevent stormwater contamination. <br />b) Sediment and Erosion Prevention: Describe practices that will be used to reduce erosion and prevent sediment delivery <br />to State waters. These could include structural (such as silt fences, sediment ponds, drop stmctures, check dams) and <br />non-stmctura] (such as mulching and revegetation) methods. <br />iv) Comprehensive Insnection <br />The SWMP shall identify qualified personnel that shall inspect designated equipment and mine areas at appropriate <br />intervals specified in the plan, at least twice a yeaz (in the spring and fall). The operator shall kegp a record of such <br />inspections. This record shall be made available to the Division upon request and summarized in the Annual Report (see <br />Part LE.1 of the permit). - - <br />v) Additional SWMP Items for Sites Seeking Permit Teimination <br />Additional requirements apply in the event that the permittee wishes to remediate the inactive mine site and temunate pertnit <br />coverage. The perntittee shall nod' the Division as to the changge in status. Notification shall be prior to the <br />implementation of the remediation work, if possible. The SWMP must be amended to include the following items, prior to <br />implementation of the remediation work (if possible): <br />a) Documentation of Permission: The plan shall include documentation of pemtission from the land owner, if the <br />remediation work is undertaken by someone other than the land owner. <br />b) Photographs: The plan shall include photographs documenting the condition of the inactive mine site before any <br />remedial action has occurred. For recently active mines, photographs of the active mitring phase tray be substituted. <br />c) Description of Remedial Action: The plan shall describe the remedial action that will take place to tninitnize or <br />eliminate the water quality impacts from the mine waste. The description shall include: <br />- Remediation Goal Statement; <br />- the characteristics of fire mineralogical content of the mine-waste, and estimated volume of the waste; <br />- description of any materials that wdl be mixed into the mine waste on site; and <br />- estimated surface azea of the final site, and estimated angle of side slopes. <br />d) Description of BMPs during Remediation Activities: The pplan shall describe BMPs that will be implemented to reduce <br />the potential of remediation activities to contribute poDutants to stortrtwater dischazges. Acnviues that shall be <br />addressed include vehicle maintenance, earth moving, material storage and spill prevention. <br />e) Procedures for Disposal of Water Stored Within Mine Waste: The pennittee must describe how any water stored <br />within the mine waste will be collected and/or routed to any storage or treatment facilities. No dischazge of ties water <br />shall be made to waters of the state, unless sepazate permit coverage is obtained. <br />f) Description of Permanent BMPs, Final Site Stabilization, and Ultimate Land Use: The plan shall include a description <br />of the specific permanent measures that will be installed or used at the mine-waste site. The description shall include <br />any of the following if appropriate: specifications for capping or isolation of the mine waste, method and type of <br />revegetation, and other permanent B p s. The plan shall also mclude a description of the ultimate land use after <br />remediation is complete. <br />ReviseQ 9/392004 <br />