Laserfiche WebLink
PARTI <br />Page No. 11 <br />Permit No.: CO-0038776 <br />2. StormwaterReouirements <br />a. Stonnwater Manaeement Plan <br />A current Sionnwater Management Plan (SWMI') shall be maintained for the portions of the West Elk Mine that are covered by <br />this section of the permit. The SWMP shall be prepared in accordance with good engineering ractices. (The plan need not be <br />completed by a registered engineer.) The plan shall identify potential sources of pollution including sediment) which may <br />reasonably be expected to affect the quality of stormwater discharges associated with the inactive mining opperation. In addition, <br />the plan shall describe and ensure the implementation of best management practices (BMPs) which will be used to reduce the <br />pollutants in stotmwater discharges associated with the inactive mining operation and to assure compliance with the terms and <br />conditions of [his permit. <br />Mountain Coal Co. must implement the provisions of their SWMP as a condition of this peimit. The Division reserves the right <br />to review the plan, and to require additional measures to prevent and control pollution as needed. <br />SWMPs which met criteria contained in the previous version of this perinit are acceptable. <br />Active Minine Areas <br />The S WMP shall include the following items for active portions of the mine, at a minimum: <br />i) Description of Minine Activities <br />The plan shall provide a nanative description of the mining and associated activities taking place at the site which affect or <br />may affect storrrtwater runoff intended to be covered by thts permit. The narrative descnpnon shall report the total acresge <br />within the mine site and an estimate of the number of acres of disturbed area. A general description of the location of the <br />mining site relative to major transportation routes and communities shall also be provided. <br />ii) Area Subiect to Effluent Limitations Guidelines <br />Each plan shall describe the portion of the Honing site which contributes runoff to azeas subject to effluent limitations <br />guidelines contained in 40 CFR subchapter N. <br />iii) Site Map <br />Each plan shall provide a site map or maps which indicate at a minimum: <br />- mining/stilling site boundaries and access and haul roads; <br />- equipment storage, fueling and maintenance azeas; <br />- rnatenals handling azeas; <br />- azeas used for storage of overburden, materials, soils or wastes; <br />- azeas used for outdoor manufacturing, storage or disposal of materials; <br />- location of mine drainage or any other process water; <br />- tailings piles/ponds, both new and pre-exrstingg; <br />- mine drainage or any other process water dischazge points; <br />- springs, streams, wetlands and other surface waters; and <br />- boundary of azea that contributes runoff to outfalls that are subject to effluent limitations guidelines. <br />For those areas ou`side of the area that contributes runoff to outfalls that are subject to effluent limitations guidelines: <br />- an estimate of the direction(s) of surface flow; <br />- stonnwater ouffalls and an outline of the drainage area of each stormwater ouffall; <br />- each existing stmctural control measure to reduce pollutants in stormwater runoff; and <br />- the locafion of impervious stmctures (e.g. pazking lots, roofs, etc.) <br />iv) Stormwater Manaeement Controls <br />Mountain Coal Co. shall develop a description of stortnwater quality controls appropriate for that site, and implement such <br />controls. The appropriateness and prionttes of controls in the plan shall reflect identified potential sources of pollutants at <br />the mining site. The description of stormwater quality connols shall address the following minimum components, including <br />a schedule for implementing such controls: <br />a) SWMP Administrator -The SWMP shall identifv a specific individual or individuals within the mining organization <br />who is responsible for developing the SWMP and assisting the mine operator in its implementation, maintenance, and <br />revision. The activities and responsibilities of the administrator shall address all aspects of the facility's SWMP. <br />b) Identification of Potential Pollutant Sources and Best Mansgement Practices -The SWMP shall identify potential <br />sources of pollutants at the site, and assess the ppotential of these sources to contribute pollutants to stormwater <br />dischar es associated with minin activities. The SWMP must also describe appropriate Best Management Practices <br />(BMPsgto seduce the ppotential of these sources. to connibute pollutants to stomawater dischazges. At a minirtium, each <br />of the following shall be evaluated for the reasonable potential for contributing pollutants to ntnoff: <br />- loading and unloading operations; <br />- outdoor storage of chesncals or equipment; <br />- outdoor mining-or processing activities; <br />- historic mine drainage; <br />- tailings ponds; <br />- crashing facthties or significant dust and particulate generating activities; practices; and <br />-stockpiles of overburden, raw material, intermediate products, byproducts, finished products or waste products. <br />Revised 4/I92004 <br />