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Topsoil Stocla~iles. There are curzently four (4) topsoil stockpiles within <br />the Southfield mine area designated as Pile Nos. M-1, M-2, M-3 and M-4. An <br />• additional topsoil pile, No. M-5, will be constructed with 2,500 cubic yards <br />of excess soil materials from the Newlin Creek Mine reclamation area. <br />Existing and proposed topsoil pile locations are shown on the Mine Area Soil <br />Map, (Map 14) as are the twv (2) topsoil piles within the loadout area are <br />shown on the Loadout Area Soils Map, (Map 15). Existing stockpile M-1 in the <br />mine area is located adjacent to the junction of County Road 92 and the <br />access road to the refuse stockpile. This stockpile contains approximately <br />10,000 cubic yards of "A" horizon material which was recovered from <br />undisturbed portions of the mine facilities area. Pile M-1 will receive an <br />additional 4,500 cubic yards of soil as part of the above referenced Newlin <br />Creek Mine excess material. Stockpiles M-2 and M-3, located near the western <br />edge of the refuse stockpile areas, contain approximately 13,100 and 19,600 <br />cubic yards of "B° and "A" horizon materials respectively which were <br />recovered from the refuse stockpile foundation and the Fond 3 and 4 areas. <br />Within the loadout area, Stockpile L-1, located in the eastern portion of the <br />laadout area south of the AT&SF railroad cut, contains approximately 8,000 <br />cubic yards of undifferentiated soil material. Stockpile L-2 contains <br />approximately 6, 000 cubic yards of soil materials and is located in the <br />western portion of the loadout area south of the county road. <br />Existing topsoil stockpiles have been located and oriented to ensure long <br />term stability, minimize wind and water erosion, and prevent contamination or <br />camaction of topsoil resources. Drainage from existing topsoil stockpiles <br />is controlled by rough graded stockpile surfaces, and as appropriate <br />temporary vegetative establishment. Drainage form Stockpile M-1 is collected <br />and routed to the upper facility area drainage system which then flows to <br />Sediment Pond 5. Drainage from Stockpiles M-2 and M-3 is collected and <br />routed to existing Sedimentation Pond 4 as illustrated by the Mine area <br />Surface and groundwater Hydrology Map, (Map 12). Drainage from Stockpile M-5 <br />will sheet flora a short distance to the Access Road Drainage Ditch and routed <br />to Sediment Pond 5. Within the loadout area, drainage from Stockpile L-1 is <br />collected and routed through a silt fence while the limited drainage from <br />Stockpile L-2 sheet-fleas to Sediment Pond L-2. <br />• <br />C:\TM~H60\vOL.I \OP. PIN <br />ion_ina a:ni~wvsii~ 2.05.3-38 Revised - 10~21~94 <br />