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PART I Page 9 of 20 Permit No. COR-040000 C. STORMWATER MANAGEhIENT PLAN -INACTIVE MINES (cont.) 3. Stormwater Manaeement Controls - Identitica~on of Sources and Best Management-Practices The SWMP shall identify potential sources of pollutants az the site and azsess the potential of these sources [o contribute pollutants to stormwazer discharges associated with mining activities..., The SWMP must also describe appropriate Best Management practices (BMPs) to reduce the potential of dtesrsources [o contribute pollutanu to stotmwa[er discharges. The appropriateness and priorities of controls in the plan shall reflect identified potential sources of pollutants at the mining site. The description of the BMPs shall include: a, Stotmwater Diversion: Describe how and where stormwater will be diverted away from potential pollutant SOLIrCes CO prevrnt StOIIDWa[eI npntaminatiOn. b. Sediment and Erosion Prevention: Describe practices that will be used Co reduce erosion and prevent sediment delivery to State waters. These could include structural (such az silt fences, sediment ponds, drop structures, check dams) and non-structural (surh az mulching and revegetation) methods. 4. Comprehensive Inspection The SWMP shall identify qualified personnel thaz shall inspect designated areas. Inspections required by this pan shall be conducted annually. Where annual inspections are impracticable, certification is required once every three years by a Registered Professional Engineer that the site is in compliance with the SWMP. Additional SWMP Items for Sites Seeking Permit Termination t Additional requirements apply in the event that the pertnittee wishes to remediate the inactive mine site and terminate permit coverage. If the site is already covered by this permit, the permittee shall notify [he Division az to the change in scams. Notification shall be prior to the implemrntation of the remediation work, if possible. The SWMP must be amended to include the following items, prior to implementation of the rcmediation work, if possible: a. Documentation of Permission: The plan shall include documentation of permission from the land owner, if the remediation work is undertaken by someone other [Iran the land owner. b. Photographs: The plan shall include photographs documenting the condition of the inactive mine site before any remedial action has~HCCUrred, For recently active mines, photographs of the active mewing phase may be substituted. c. Description of Remedial Action: The plan shall describe the remedial action that will take place to minimize or eliminate the water quality impacts from the mine waste. The description shall include: - Remediazion Goal Stazemrnt; - the characteristics of the mineralogic content of the mine-waste, and estimated volume of the wazte; - description of any materials thaz will be [nixed into the thine waste on site; and - es[itnated surface azea of the final site, and estimated angle of side slopes. d. Description of BMPs during Remediation Activities: The plan shall describe BMPs that will be implemented to reduce the potential of remediation activities to contribute pollutants to stormwater dischazges. Activities thaz shall be addressed include vehicle maintenance, eanh moving, material storage and spill prevention. e. Procedures for Disposal of Water Stored Within Mine Waste: The permit[ee must describe how any water stored within dte [nine wazte will be collected and/or routed to any storage or treatment facilities. No discharge of this water shall be made to waters of the state, unless separate permit coverage is obtained. f. Description of Permanent BMPs, Final Site Stabilisation, and Ultimate Land Use: The plan shall include a description of the specific permanrnt measures that will be installed or used a[ the mine-waste site. The description shall include any of the following if appropriate: specifications for capping or isolation of the