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PART I Page No. 7 Permit No. COG-850000 EFFLUENT LA1T7'ATIONS AND MONTT'ORING REQUIItEMENTS 2. Stormwater Manaeement Plan fSWNfPI A Stormwater Management Plan (SWMP) shall be developed for the ponion of each facility covered by this section of the permit. The SWMP shall be prepazed in accordance with good engineerine practices. (The plan need not be completed by a registered engineer.) The plan shall identify potential sources of pollution (including sediment) which may reasonably be expected to affect the quality of stormwa[er discharges associated with the mining operation. In addition, the plan shall describe and ensure' the implementation of but management practices (BlviPs) which will be used to reduce [he pollutanu in stormwa[er discharges associated with mining activity. Mining operations must implement the provisions of the SWMP required under this part as a condition of this permit. The Division reserves the right to request and review the plans, and to require additional meaures to prevent and control pollution, as needed. The SWMP shall desctibe all areas [hat have not been preciously permitted, and which meet [he defitti[ion of a seormwater discharge in 40 CFR 122.26. Examples of such areas are roads and railroad lines used for transportation to and from the site, outslopes of ponds, inactive loadouts, sites used for storaee and maintenance of material handlin? equipment, and areas granted small area exemptions. a) SWMP Concenu The SW,~IP shall include the following items, at a minimum: 1) Site Map The plan shall provide a site map or maps which indicate, at a minimum: - Minins site boundaries - Access and haul roads - Stormwa[er outfalls and an outline of the drainage area of each stotirtwa[er outfal] - An estimate of [he direction of flow - Materials handling areas - Each existing structural control measure to reduce pollutants in stormwater runoff - Areas used for storage or disposal of overburden, materials, soils or wastes, including tailings piles or ponds - Areas used for mineral milling and processing - Springs, streams, wetlands and ocher surface waters - Location of mine drainage or any ocher process water discharge points - boundary of area that contributes nmoff ro outfalls that are subject to effluent limitations guidelines. - Date the map was prepared 2) Description of Potential Pollutant SourceslMaterial Inventory The plan shall provide a description of all potential sources (activities and materials) which may reasonably be expected to add pollutants to stormwater discharges. Such sources may include haul roads, equipment storage and maintenance areas, fuel storage areas, etc. 1o each case where stormwater pollution potential exists, appropriate preventive measures mtut be [afien and documented.