GENERAL41728 - Laserfiche WebLink

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V VI VII VIII IX X XI Sealing of Drilled Holes and Underground Ooeninge 1. The Division will require that each hole, well or other underground opening be capped, sealed, backfilled, or otherwise properly managed (4.07.3). IIse of Explosives The explosives area at the Foidel Creek Mine was transferred from the Mine No. 1, Mine No. 2, and Eckman Park sine, Permit # C-81-071. Surface blasting ie limited to 5 pounds of explosives. No specific approvals are granted under this section. Disposal of Excess Spoil No excess spoil exists at the Foidel Creek Mine. No specific approvals are granted under this section. Coal Mine Waste Banks No coal mine waste currently exists at the Foidel Creek mine. No specific approvals are granted under this section (4.10.1(1)). Coal Mine Waste No coal mine waste currently exists at the Foidel Creek mine. No specific approvals are granted under this section (4.11.1). Backfilling and Grading The Foidel Creek mine portals are located along Foidel Creek faced-up in highwall from the adjacent surface mining activity in Eckman Park. Partial backfilling and grading was done to help seal the portal area from groundwater inflow. The remaining backfilling and grading will occur at the completion of mining activity at the Foidel Creek mine. No specific approvals are granted under this section. Revegetation 1. The Division proposes to approve the use of introduced species in the reclamation seed mix. Introduced species are included in the cropland, pastureland, and rangeland seed mixes. The applicant has submitted information which shows that the introduced species are desirable and necessary to achieve the approved past-mining land use, and are not poisonous or noxious (4.15.2). Methods to measure herbaceous cover and production, species diversity, and woody plant density are discussed beginning on pages 2.04-54 and 2.05-70 of Vol. I for all but the Fish Creek Tipple area. These techniques include: a) ten-meter transects using a ten point optical frame every one meter for a total of 100 "hits" to evaluate vegetative cover; b) clipping of a one-square-meter quadrant followed by drying for 24 hours at 105 degrees and weighing to the nearest .1 gram for productivity; c) bagging by species during productivity analysis to determine species diversity; d) shrub density will be evaluated using a modified point-center- quarter technique. 16