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IV. TOPSOIL - RULES 2.04.9,2.05.3(s), 2.05.4(2)(d) AND 4.06 <br />Information regarding soil resources and salvage may be found in Tab 9, Tab 17, Tab 19, <br />Attachment 9-1, 9-2, 9-3, 9-4, and Exhibit 9-1 in the permit. <br />The Loadout and railroad spur were constructed from 1977 to 1979. These facilities were <br />previously permitted under Permit No. C-80-003. Topsoil was stripped from the facilities <br />site, railroad spur, and railroad loop, and stockpiled. All suitable A horizon topsoil and <br />some upper B horizon subsoil material was salvaged. <br />Existing topsoil stockpiles were inventoried in November 1992 to confirm volumes and <br />suitability of stockpile material. Results of this inventory are located in Attachment 9-1 of <br />the permit. Approximately 55,100 cubic yards of soil material have been stockpiled. <br />Analyses of the stockpiled material indicate elevated SAR and increased salinity levels at <br />the lower depths of topsoil piles #1 and #3. Due to these factors, somewhat less than the <br />55,100 cubic yards of the stockpiled topsoil material will be redistributed on disturbed <br />areas during reclamation. This volume will allow for replacement depths of 6 to 9 inches <br />over 54 acres of disturbance. <br />Three soil mapping units were identified during a Soil Conservation Service survey. They <br />consist of Spicerton variant, an unnamed soil type occurring along the first terrace of Dry <br />Creek, and Morapos soil types. The Spicerton variant soil exhibits elevated SAR values <br />below a 1-inch depth and high EC levels below 8 inches. The Spicerton variant soils are <br />not recommended for topsoil salvage. The Morapos soils and the unnamed soil mapping <br />unit have loamy to silty clay loam textures and no limiting characteristics in the surface <br />horizons. The Morapos soil is salvageable from 0- to 9-inch depths while the unnamed <br />soil is suitable for topsoil salvage from 0 to 24 inches. <br />Anticipated new disturbance associated with the reopening operations at the Loadout is <br />limited to 0.2 acre associated with construction of HGLF-HR2. This proposed <br />disturbance is within the Disturbed Land, Topsoiled mapping unit. HGTI will salvage all <br />suitable topsoil prior to construction of haul road HGLF-HR2. <br />Topsoil replacement will occur at the conclusion of the operation once facilities have been <br />dismantled and the land recontoured to blend with the surrounding topography. Structures <br />that will remain following reclamation include Routt County Road 37 and U.S. Highway <br />40. The right-of-ways along these roads account for 3.3 acres and will not be topsoiled. <br />No specific approvals are being granted concerning topsoil removal, storage and <br />redistribution. <br />V. SEALING OF DRILLED HOLES AND UNDERGROUND OPENINGS <br />21