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003. Topsoil was stripped from the facilities site, railroad spur, and railroad loop and stockpiled. All suitable A horizon topsoil and some upper B horizon subsoil material was salvaged. Existing topsoil stockpiles were inventoried in November 1992 to confirm volumes and suitability of stockpile material. Results of this inventory are located in Attachment 9-1 of the permit. Approximately 55,100 cubic yards of soil material have been stockpiled. Analyses of the stockpiled material indicate elevated SAR and increased salinity levels at the lower depths of topsoil piles #1 and #3. Due to these factors, somewhat less than the 55,100 cubic yards of the stockpiled topsoil material will be redistributed on disturbed areas during reclamation. This volume will allow for replacement depths of 6 to 9 inches over 54 acres of disturbance. Soil mapping units identified during a Soil Conservation Service survey consist of Spicerton variant, an unnamed soil type occurring along the first terrace of Dry Creek, and Morapos soil types. The Spicerton variant soil exhibits elevated SAR values below a 1-inch depth and high EC levels below 8 inches. The Spicerton variant soils are not recommended for topsoil salvage. The Morapos soils and the unnamed soil mapping unit have loamy to silty clay loam textures and no limiting characteristics in the surface horizons. The Morapos soil is salvageable from 0- to 9-inch depths while the unnamed soil is suitable for topsoil salvage from 0 to 24 inches. Anticipated new disturbance associated with the reopening operations at the loadout is limited to 0.2 acre associated with construction of haul road number two. This proposed disturbance is within the Disturbed Land, Topsoiled mapping unit. HGTI will salvage all suitable topsoil prior to construction of this haul road. Topsoil replacement will occur at the conclusion of the operation once facilities have been dismantled and the land recontoured to blend with the surrounding topography. Structures that will remain following reclamation include Routt County Road 37 and U.S. Highway 40. The right-of--ways along these roads account for 3.3 acres and will not be topsoiled. No specific approvals are being granted concerning topsoil removal, storage and redistribution. V. SEALING OF DRILLED HOLES AND UNDERGROUND OPENINGS Information regarding sealing of monitoring wells maybe found in Tab 23, Attachment 23-3 in the permit. All groundwater monitoring wells, water supply wells, etc, which are a part of the operation will be reclaimed. The Division will require that each hole, well or other underground opening be capped, sealed, backfilled, or otherwise properly managed (4.07.3). 2i