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PARTI Page No. 12 Permit No.: CO-0038776 2. Stormwater Requirements a. Stomrwater Management Plan {continued) Factors to consider include the toxicity of the material; quantity of chemicals used; amount of material processed; the likelihood of contact with stormwater; and history of significant drainage, leaks or spills of toxic or hazazdous pollutants. The description of the BMPs shall include: 1) Stormwater diversion: Describe how and where stormwater will be diverted away from material handling and storage azeas to prevent stormwatet contamination. 2) Materials handling and spill prevention: Where materials can t' act stormwater runoff; ppractices that reduce the potential for contamination shall be described and implemented. For example, tnatenals should be stored and handled in covered azeas to prevent contact with storrrtwater; chemicals should be stored within beans or secondary containment devices to prevent leaks and spills from entering stormwater runoff. 3) Sediment and erosion prevention: Describe practices that will be used to reduce erosion and prevent sediment delivery to State waters. These could include stmctural (such as silt fences, sediment ponds, drop structures, check dams) and non-stmctural (such as mulching and revegetation) methods. In each case where stormwater pollution potential exists, appropriate preventive measures must be identified and implemented. c) Preventive Maintenance -The SWMP shall identify a preventive maintenance program. This program shall involve maintenance of stormwater management devices (maintenance of dikes separating mine drainage from stormwater, cleaning oiUwater sepazators and catch basins, etc.) as we]] as inspectingg and testing of equipment and systems to prevent conditions that could cause breakdowns or failures resulting in dtscharges of pollutants to surface waters. d) Good Housekeeping -The SWMP shall identify good housekeeping procedures that will be followed by the m~~ng operation. Good housekeeping requires the maintenance of a clean, orderly facility. This part of the SWMP shall address cleaning and maintenance schedules, trash disposal and collection practices, grounds maintenance, etc. e) Spill Prevention and Response Procedures -Areas where potential spills can occur, and their accompanying drainage pq~nts, shall be identified cleazly in the SWMP. Where appropriate, spectfying material handling procedures and storage requirements in the plan shall be considered. Procedures for cleaning up spills shall be identified in the plan and made available to the appropnate personnel. The necessary equipment to intplement a clean-up shall be available to personnel. fl Employee Education -The SWMP shall describe employee education programs to inform personnel at all levels of responstbiltttyy (who aze involved in mining activities that ma mtpact stormwater runoff) of the components and goals of the SWMP. Education shall address topics such as spill response, good housekeeping and material management practices. The SWMP shall identify periodic dates for such instmction. Contractor or temporary personnel shall be urformed of mine operations and control features in order to prevent stormwater pollution from occurring. g) Identification of Discharges other than Stormwater -The stormwater conveyance system on the site shall be evaluated for the presence of discharges other than stormwater. The SWIvL° shall incl.:de a description of the results cf any evaluation for the Qresence of dischazgges other than stormwater, the method used, the date of any evaluations and the on-site drainage potnts that were duecfly observed dozing the evaluation. A number of dischazges other than stozmwater tnay not require a CDPS Wastewater Dischazge permit and aze considered Allowable Non-stormwater Dischazges. These are hsfed a! Part I)D.3, below. Any of these dischazges that exist at the site must be identified in the SWMP. v) Comprehensive L~spection The SWMP shall identify qualified persotmel that shall inspect desi~ated equipment and mine azeas at appro riate intervals specified in the plap, at least twice a yeaz (in the spring and fall). The operator shall keep a record ofpsuch inspections. This record shall be made available to the Division upon request and snmmar,~ed in the Annual Report (see Part LE.1 of the permit). vi) Consistency with Other Plans SWMPs may reflect requirements for S ill Prevention Control and Countermeasure (SPCC) plans under section 311 of the CWA, or Best Management Practices (pBMPs) Programs otherwise required by a C PS pemnt, and may incorporate any part of such plans into the SWMP by reference. The SWMP ma rely upon information developed for other similaz pollution control programs, including the Mined Land Reclamation Plan. Appropriate portions of these other plays maybe incorporated in the SWMP by reference, as long as a complete SWMP can be reproduced and submitted to the requeshno agency anthin the time frame specified in the request. Those portions of the referenced documents must be included in th'e submtttal. The SWMP must also be readily available to an on-srte inspector. The Stormwater Management Plan (SWMP) for West Elk Mine shall be developed to cover the inactive pportions of the mine. The plan shall rdentify potential sources of pollution (including sediment) which may reasonably be expected to affect the quality of stormwater dischazges associated wtth the inactive mining operation. In addition, the plan shall describe and ensure the implementation of best management practices (BMPs) wlvch wtll be used to reduce the pollutants in stormwater dischazges assoctated with the inactive mtmng operation and to assure compliance with the temrs and conditions of this permit. xe.~ea atsrzooa