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April 1992 MR-19 Pneumatic Coa/ Oryinp lnstallatlon • Pape ~ 2 <br />• Z.04 ENVIRONMENTAL RESOURCES <br />Information on environmental resources presen[ed in Section 2.04 of [he EFCI Permit <br />Appliation document addresses the entire Southfield Permit Area, including the si[e of the <br />proposed dryer installation. Also, installation and operation of the proposed coal dryer will not <br />result in any signifiant additional environmental impacts beyond thou contemplated in the <br />existing permit appliation. <br />5.05 OPERATION AND RECLAMATION PLANS <br />Installation of the proposed pneumatic coal dryer will involve limited construction within the <br />existing disturbance ara currently utilized for coal storage and handling. Construction will <br />specifically involve the following activities: <br />• Install Foundation Structures <br />• Erect Hopper Structure <br />• Install Cyclone Dryer <br />• Erect Pneumatic Pipeline, Walkway and Support Structures <br />• Install Modulaz Feeder and Pump Systems <br />The configuration and relative lontions of each of the structures identified above are shown on <br />• the Mine Surface Facilities Map, (Map 18), with plan and elevation details more clearly <br />illustrated by Figure 19-1, Pneumatic Coal Drying System -Conceptual Design. Construction <br />activities, as well as operational and reclamation considerations are discussed in the following <br />sections. <br />INSTALL FOUNDATION STRUCTURES <br />In order to insure long-term stability and structural integrity, adequate foundation structures will <br />be required for both the product surge hopper and truss rupports. The surge hopper and <br />columns which will support the integrated truss walkway/pipeline structures will be mounted <br />on concrete footings poured around driven steel pilings. The hopper will require eight footings <br />spaced evenly on the hopper perimeter as shown on Figure 19-1, Pneumatic Coal Drying System <br />- Conceptual Design. The support columns will each be mounted on separate footers with <br />extended piling supports to provide additional rigidity. <br />ERECT HOPPER STRUCTURE <br />The hopper structure will be a pre-fabriated steel bin with support legs, discharge chute and <br />slide gate, and upper support structure for the ryclone dryer and integrated <br />truss/walkway/pipeline structure. The hopper structure, which will weigh approximately 50 <br />tons empty and will provide rurge storage capacity of 300 tons, will be eretted using a mobile <br />crane and mounted on the previously corutructed foundation structures. <br />• <br />ACZ /nc. • P.O. Bax 774018 • Steamboat Springs, Colorado 80477 • (30318 79-62 60 <br />