Laserfiche WebLink
PART I Page 9 of 20 <br />Permit No. COR-040000 <br />C. STORMWATER MANAGEMENT PLAN -INACTIVE ML`1ES (cont.) <br />3. $to_rmwater Management Controls -Identification of Sources and Best Management Practices <br />The SWMP shall identify potential sources of pollutants at the site and assess the potential of these sources to <br />contribute pollutants to stormwater dischazges associated with mining activities. The SWMP must also describe <br />appropriate Best Management practices (BMPs) to reduce the potential of these sources to contribute pollutants to <br />stormwater dischazges. The appropriateness and priorities of controls in the plan shall reflect identified potential <br />sources of pollutants at the mining site. The description of the BMPs shall include: <br />a. Stormwater Diversion: Describe how and where stormwater will be diverted away from potential pollutant <br />sources to prevent stormwater contamination. <br />b. Sediment and Erosion Prevention: Describe practices that will be used to reduce erosion and prevent sediment <br />delivery to State waters. These wuld include structural (such as silt fences, sediment ponds, drop structures, <br />check dams) and non-structural (such as mulching and revegetation) methods. <br />4. Comprehensive Inspection <br />The SWMP shall identify qualified personnel that shall inspect designated azeas. Inspections required by this part <br />shall be conducted annually. Where annual inspections aze impracticable, certification is required once every three <br />years by a Registered Professional Engineer that the site is in compliance with the SWMP. <br />5. Additional SWMP Items for Sites Seeking Permit Termination' <br />Additional requirements apply in the event that the perrnittee wishes [o remediaze the inactive mine site and <br />terminate permit coverage. If the site is already covered by this permit, the permittee shall notify the Division as to <br />the change in status. Notification shall be prior to the implementation of the remediation work, if possible. The <br />SWMP must be amended to include the following items, prior to implementation of the remediation work, if <br />possible: <br />a. Documentation of Permission: The plan shall include documentation of permission from the land owner, if <br />the remediation work is undertaken by someone other than the land owner. <br />b. Photographs: The plan shall include photographs documenting [he condition of [he inactive mine site before any <br />remedial action has occurred. For recently active mines, photographs of the active mining phase may be <br />substituted. <br />c. Description of Remedial Action: The plan shall describe the remedial action that will take place to minimize <br />or eliminate the water quality impacts from the mine waste. The description shall include: <br />- Remediation Goal Statement; <br />- the chazacteristics of the mineralogic content of the mine-waste, and estimated volume of the waste; <br />- description of any materials that will be mined 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 AMivities: The plan shall describe BMPs that will be implemented <br />to reduce the potential of remediation activities to contribute pollutants to stormwater dischazges. Activities that <br />shall be addressed include vehicle maintenance, eardt moving, material storage and spill prevention. <br />e. Procedures for Disposal of Water Stored Within bline Waste: The permittee must describe how any water <br />stored within the mine waste wil] be collected and/or routed to any storage or treatment facilities. No discharge <br />of this water shall be made [o waters of the state, unless sepazate permit coverage is obtained. <br />Description of Permanent BMPs, Final Site Stabilization, and Ultimate Land Use: The plan shall include a <br />description of the specific permanent measures that will be installed or used at the mine-waste site. The <br />description shall include any of the following if appropriate: specifications for Gypping or isolation of the <br />