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The drainage from the pad will be passed through a gravel filter and then a natural <br />vegetative filter before entering Fish Creek. The design of this system is presented in <br />Exhibit 8T. <br />12. All roads to be used for project, and existing conditions of roads and anticipated, <br />f~ improvements. <br />An access road will be constructed to th'e ventilation shaft, and its design is presented in <br />Exhibit 25T. Otherwise, existing mine roads will be used and maintained in accordance <br />with TCC's DMG permit no. C-82-056. <br />Environmental Analysis (Provide the following information for the checked items) <br />^ Geologic hazards <br />^ Mitigation techniques proposed for geologic hazards <br />^ Hydrologic hazards <br />^ Mitigation techniques for hydrologic hazards <br />0 Wildlife impacts -Report from Division of Wildlife _ _ _ <br />^ Suggested mitigation (from Division of Wildlife) <br />(7 Wildfire hazards (report from State Forester) <br />^ Mitigation techniques for wildfire hazards <br />^ Soils: Erosion control management practices -report from Soil Conservation Service <br />Petitioner shall provide a report on the following: <br />1. Air pollution potential from facilities, roads and/or equipment. <br />~~ TCC's existing facilities are permitted under Colorado Department of Public Health and <br />_ Environment's (CDPHE's) Air Pollution Control District Construction Permit NO. <br />93RO1204. The 18 Right Bleeder Shaft and associated access road will be permitted <br />through the CDPHE. <br />2. Air pollution controls on facilities, road and equipment. <br />The access road will be surfaced with durable material, and the infrequent use of the <br />road will minimize dust generation. The access road will otherwise be watered as <br />needed to control dust, The stockpiled topsoil will be seeded and, once established, the <br />surface will be stabilized with a vegetative cover. This will minimize dust generated from <br />the stockpiles. <br />It is anticipated that approximately 12,400 cubic yards of gravel will be required for <br />construction of the access road and the ventilation shaft pad. Assuming approximately <br />25 tons per gravel truck, this would require approximately 500 trucks. This portion of <br />khe project will be put out to bid. Thus,, the. exact route or routes for the selected gravel <br />contractor is as of yet undetermined. Once selected, TCC will notify Routt County as to <br />the anticipated truck traffic volume and delivery route(s). <br />3. Water pollution controls. <br />There are no water body crossings. Runoff from the ventilation shaft pad will be passed <br />through a gravel filter and then flow through a natural vegetative filter prior to potentially <br />( entering Fish Creek. The access road will be crowned and maintained to facilitate <br />surface drainage and minimize water ponding. Culverts will be placed in small drainages <br />to reduce potential of road eroding and contributing suspended solids to drainage. No <br />disturbance of existing Fish Creek outfalls or significant impact to Fish Creek water <br />quality downstream of the bleeder shaft is anticipated. Following a discussion of the <br />