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PART I Page 9 of 20 Permit No. COR-040000 C. STORMWATER MANAGEMENT PLAN -INACTIVE MINES (con[.) 3. Stormwater Management Controls -Identification of Sources and Best Management Practices The SWMP shall identify potential sources of pollutants at the site and assess the potential of these sources to contribute pollutants to Stormwater discharges associated with mining activities. The SWMP must also describe appropriate Best Management practices (BMPs) to reduce the potential of these sources to contribute pollutants to Stormwater dischazges. 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. Stormwater Diversion: Describe how and where Stormwater will be diverted away from potential pollutant sources to prevent Stormwater contamination. b. Sediment and Erosion Prevention: Describe practices that will be used to reduce erosion and prevent sediment delivery [o State waters. These could include structural (such as silt fences, sediment ponds, drop stmctures, check dates) and non-structural (such as mulching and revegetation) methods. 4. Comprehensive Inspection The SWMP shall identify qualified personnel that shall inspect designated areas. Inspections required by this part shall be conducted annually. Where annual inspections aze impracticable, certification is required once every three yeazs by a Registered Professional Engineer that the site is in compliance with the SWMP. 5. Additional SWMP Items for Sites Seeking Permit Termination Additional requirements apply in [he event that dte permittee wishes to remedia[e the inactive mine site and terminate permit coverage. If the site is already covered by this permit, the permittee shall notify the Division as to the change in status. Notification shall be prior [o [he implementation of the remediation work, if possible. The SWMP must be amended to include the following items, prior to implementation of the remediation 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 than the land owner. b. Photographs: The plan shall include photographs documenting the condition of the inactive mine site before any remedial action has occurred. For recently active mines, photographs of the active mining phase may be substituted. c. Description of Remedial Action: The plan shall describe the remedial action that will take place to minimize or elimittate the water quality impacts from the mine waste. The description shall include: - Remediation Goal Statement; - the chazacteristics of the mineralogic content of the mine-waste, and estimated volume of the waste; - description of any materials that will be mixed into the mine waste on site; and - estimated surface area 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 remediaticn activities to contribute pollutants to Stormwater dischazges. Activities that shall be addressed include vehicle maintenance, earth moving, material storage and spill prevention. e. Procedures for Disposal of Water Stored Within Mine Waste: The permittee must describe how any water stored within the mine waste will be collected and/or routed to any storage or treatment facilities. No dischazge of this water shall be made to waters of the state, unless sepazate permit coverage is obtained. f. Description of Permanent BMPs, Final Site Stabilization, and Ultimate Land Use: The plan shall include a description of the specific permanent measures that will be installed or used at the mine-waste site. The description shall include any of the following if appropriate: specifications for capping or isolation of the