2011-11-22_GENERAL DOCUMENTS - C1992081

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Description of the Mine Operation Plan Detailed information on the HG Loadout Operation Plan is found in Tab 12 of the permit application. Reclamation activities associated with the Loadout and rail loop are described in Tabs 16 - 20 and 23 of the permit document; and in Section B of this document. Construction of the Loadout and rail loop began in 1978 and coal was shipped to market from the facility until spring of 1987. Coal was again stored at the Loadout beginning late in 1992. Coal has been removed and no coal is currently (2011) stored on site. Technical Revision No. 5 (TR5), approved 24 July 2000, allowed for using the Loadout site to off load coal from incoming rail cars. Technical Revision No. 6 (TR6) provided more detail for "load -in" operations. At the date of this findings document, facilities approved in TR6 have not been constructed. The "load -in" facilities are approved to handle 2,000,000 tons of coal per year. Coal would then be hauled by truck along the TAHR to the Hayden Power Station. Prior to utilization as a "load -in" facility, HGT will need to construct support facilities as approved in the permit. Air emissions permits will be required to be renewed with the Colorado Air Pollution Control Division prior to implementation of "load -in" operations. Water control systems and sediment ponds throughout the permit area are appropriate for the "load -in" operation. The existing roads will be used for the "load -in" operations with the addition of a new haul road, HGLF -HR2, previously approved under TR -06 (June 15, 2005). Hayden Gulch Terminal retains the option of operating the facility as a loadout, and is permitted to store up to 50,000 tons of coal at the Loadout and ship 1,000,000 tons of coal per year. Facilities currently permitted are adequate for loadout capability. Recovered coal is trucked to the site and is permitted to either be stored in an excess coal storage area or put immediately through a grizzly and crushing station to be stored in the main coal stockpile awaiting shipment. Shipment to the customer is either by train or truck from the same tipple. Roads inside the permit area are: 4,061 linear feet of haul road (HGLF -HR1), one access road, one light -use road, and the TAHR. The railroad spur is approximately 3.3 miles long and begins 0.3 miles from the town of Hayden; it serves as a connection to the existing Denver and Rio Grande Railroad (see Exhibit 12 -1, "Facilities Map "). Two existing sediment ponds (and associated NPDES outfalls) act as sediment control for the runoff from the loadout area: the Truck Loop Pond (Pond A, NPDES Outfall 006) which treats the truck loop and office area and the Rail Loop Pond (Pond B, NPDES Outfall 007) which treats the coal crushing, storage and tipple areas. A system of ditches diverts freshwater around the disturbance and another system of culverts and ditches conveys water under roadways and to the sediment ponds (see Appendix 12 -4 and Exhibit 12 -2, "Surface Water Control Plan Map "). Ten small area exemptions are permitted for the three topsoil stockpiles (TS -1, portion of TS -2, TS -3) associated with the Loadout and six topsoil stockpiles (A, C, D, E, F, and G) and one temporary waste stockpile (TWS) associated with the TAHR outside the sediment control system described above (see Appendix 12 -2 and Exhibit 9 -1). A leach field treats sewage from the office and change trailer (see Exhibit 12 -2). Hayden Gulch Loadout 12 November 22, 2011