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• <br />• <br />• <br />4) Seed Mixture: <br />a> Blue Grama, Covington at 0.6 pounds PLS per acre. <br />b> Side Oats Grama, Vaughn at 2.7 pounds PLS per acre. <br />c> Little Bluestem, Pastura at 1.75 pounds PLS per <br />acre. <br />d> Sand Dropseed at 0.125 pounds PLS per acre. <br />Technical Revision #1 January 11, 1982. <br />1. Map H52 shows the effect of this technical revision on the <br />original permit area. <br />2. GENERAL DESCRIPTION: Involved a trade of 11 acres of <br />permitted land on the eastern end of Area 4 for 11 acres of <br />previously unpermitted land on the western edge of Area 1. <br />3. PURPOSE: To obtain coarse gravels located west of Area 1. <br />4. MINING PLAN: <br />a)Would mine generally in a NW to SE direction in 2.5 to 3 <br />acre increments. <br />b)Expected that each increment would take 4 to 5 years to <br />complete. <br />5. RECLAMATION: <br />a)As each mining area is completed the pit would be <br />backfilled with wash fines from the clarifier located in <br />Area 1. <br />b)Five to ten feet of material would be placed on top of the <br />dried sediment. <br />c)Topsoil would then be placed, the site final graded, and <br />seeded in accordance with the permit. <br />6. ADEQUACY REVIEW QUESTIONS AND RESPONSES (Summaries): <br />a)Soil would be stripped ahead of the mining areas. <br />b)Soil would be stripped to a depth of 4 inches to 18 <br />inches. <br />c)Soil would be stockpiled in piles along the edges of the <br />area. The piles would be 6 feet to 10 feet high. <br />d)Topsoil stockpiles would be seeded with western <br />wheatgrass. <br />History <br />Page HIS-5 <br /> <br />