2020-07-06_GENERAL DOCUMENTS - C1994082

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Items Approved for Permanent Retention Roads and associated road culverts approved as permanent features for the SPL were approved under Technical Revision No's. 37 and 49 (TR37 and TR49) on 4 December 2008 and 16 September 2010, respectively. Access roads include road(s) A and B (road B becomes road LU - 3A). Light use roads include LUI, LU2, MA, LU4, and LU5. The roads approved for permanent retention were deemed necessary to support the post -mining land use and are utilized by property owners for access. The Division approved permanent pond demonstrations for three of the five remaining sediment ponds. Sediment ponds 10, 13, and 14 as well as two small livestock/wildlife stock ponds; Stock Tank 1 and I JA have received approval from the Division to remain as permanent features and, all water bodies receive run off from the SL7 bond release areas. Permanent ponds have met the criteria specified under Rule 4.05.9(13) and were deemed necessary to support the post -mining land use. Ponds 10, and stock tank 1 achieved phase I release in SL4 and constitute approximately 0.7 and 0.2 acres respectively that will not be backfilled and graded. Stock Tankl IA (0.2 acres), and its associated drainage and Ponds 13 and 14 comprised part of SL6 partial Phase I bond release and constitute 0.7 acres each, for a total of 1.6 acres which will not undergo backfilling and grading. Pond 014 has been permitted as a permanent impoundment in its current configuration as has Stock Tank 11A. Table 2 below tracks the permanent shrub plots, their acreages and the bond release status of each feature. Tahle 2: Shruh Plot Bond Release Status Shrub Plots Phase I acres Phase II acres Phase III acres SP07-1 4.0 SP05-1 5.2 SP06-1 7.3 SP06-2 1.0 SP06-3 1.0 SP07-1 4.0 SP072- 2.6 The SL7 bond release block includes a single remaining substation and approximately 7,355 feet of powerline with poles throughout the property. The substation was constructed to provide electricity to the mining equipment and facilities during the mining process. The substation is privately owned by the Yampa Valley Electric Association (YVEA). Both the powerline and substation were retained as permanent features in support of the post -mining land use as part of Technical Revision 37 (TR37). The YVEA powerline corridor (Phase III) was released with SL6 in 2018. The substation pad (Phase I released with SL6) constitutes approximately 0.46 acres and was approved as a permanent feature. The topsoil in Topsoil Stockpile I was to be redistributed on Haul Road B. Since this area was approved for permanent retention, the topsoil in Stockpile I was not needed for reclamation. The topography of the existing topsoil stockpile is consistent with the approved post -mining topography. The Pond 012 watershed area includes a portion of the South Pit and the Neck Pit mining areas. These areas were to be graded to approximate original contour, as depicted in the approved Exhibit 20-2 of the Permit Application Package (PAP), their drainages reestablished, and the areas were to be Permit Number C-1994-082 Page 4 of 23