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PART I Page No. 7 Perini[ No. COG-850000 B. EFFLUENT L1MTfATIONS AND MONf['ORING REQUIREMENTS 2. Stormwater Mana¢ement Plan (SWMP) A Stormwazer Managetnent Plan (SWMP) shall be developed for the portion of each facility coveted by this section of the permit. The SWMP shall be prepared in accordance with good engineering practices. (The plan need not be completed by a registered engineer.) The plan shall identify potential sources of pollution (including sediment) which [nay reasonably be expected to affect the quality of stormwazer discharge associated with the mining operation. In addition, the plan shall describe and ensure the implementation of best management practices (BMPs) which will be used ro reduce the pollutanu in stormwater discharges associazed with [Wining 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 measures to prevent and control pollution, as needed. The SWMP shall describe all arras that have not been previously permitted, and which meet the defuritian of a stormwater discharge in 40 CFR 122.26. Examples of such areas are roads and railroad lines used for transpona[ion to and from the site, outslopes of ponds, inac[ive loadouts, si[es used for storage and maintenance of material handling equipment, and areas granted small area exemp[ions. a) SWMP Contents The SWMP shall include the following items, az a minimum: 1) Site Map The plan shall provide a site map or maps which indicate, az a minimum: - Mining site boundaries - Access and haul roads - Stormwazer outfalls and an outline of the drainage aru of each stormwater outfall - Aa estimate of the direction of flow - Materials handling areas - F.ach existing structural control measure to reduce pollutants in stormwa[er 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 other surface waters - Location of mine drainage or any other process wazer discharge points - boutuiary of area that contributes runoff to outfalls that are subject to efflurnt limitations guidelines. - Date the tttap was prepared 2) Description of Potential Pollutant Sourrrs/Nlazerial Invea[ory The plan shall provide d description of all potential sotttces (activities and materials) which may reasonably be expected to add pollutanu ro srormwazer discharges. Surb sourt;es may include haul roads, equipmen[ storage and maintenance areas, fuel storage areas, etc. In each t:ase where stormwater pollution potential exists, appropriate preventive measures must be taken and documrnted.