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IX. Coal Mine Waste — Rule 4.11 <br />The Coal Mine Waste Fire Fighting Plan is found in Exhibit 25a of the permit (4.11.1). <br />Twentymile Coal Company has previously been approved to dispose of select non - <br />coal waste in a location south of the Area 1 pit. This location is located in spoil <br />material from the Energy Mine No. 1, and is located above the water table (4.11.4(1)- <br />(3)). In addition, coarse coal processing waste is placed in the coal mine waste bank. <br />Coal processing waste fines are placed in the coal mine waste bank or returned <br />(thickener underflow) to abandoned workings in the Southwest Mining District or <br />Eastern Mining District. <br />No coal mine wastes are stored at the Fish Creek Tipple (4.11.3). <br />X. Backfilling and Grading <br />The Foidel Creek mine portals are located along Foidel Creek, faced -up in the <br />highwall from the adjacent surface mining activity in Eckman Park. Partial backfilling <br />and grading was done to help seal the portal area from groundwater inflow. The <br />remaining backfilling and grading will occur at the completion of mining activity at <br />the Foidel Creek mine. No specific approvals are granted under this section. <br />XI. Reve etg ation <br />A. The Division has previously approved the use of introduced species in the <br />reclamation seed mix. Introduced species are included in cropland, pastureland, <br />and rangeland seed mixes. The applicant has submitted information which shows <br />that the introduced species are desirable and necessary to achieve the post -mining <br />land use, and are not poisonous or noxious (4.15.2). <br />Methods to measure herbaceous cover and production, species diversity, and <br />woody plant density are discussed beginning on pages 2.04-52 and 2.05-115 of the <br />application for all disturbed areas, with the exception of the Fish Creek Tipple <br />area. These techniques include: <br />1. Vegetative cover will be sampled using the point -intercept method on a 50 - <br />meter transect line. "First hit" percent cover at every sample location will be <br />calculated for each species; <br />2. Herbaceous production samples will be taken at the same random sample <br />points used for cover sampling. Vegetation clipping will occur in one -square <br />meter quadrants, followed by drying at 105 degrees and weighing to the nearest <br />0.1 gram for productivity; <br />Species diversity success will be demonstrated with no single plant species <br />exceeding 60% relative cover and at least two of the following tests: 1) total <br />Foidel Creek Mine 33 February 25, 2016 <br />