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• 2.05 APPLIQ,TI@i FYII2 PF;RrII'P FT>Tt 801 ORZ @ID MINII~IG ACPIVITIES - <br />MII~s RBQDIIII~N18 Fit OPERATSCQi ATID Ig7C[AI+Il4TI@i Fii11~H. <br />2.05.4 Realamntion Plea. <br />(2) (d) (Oont'd.) <br />surface considering drainage, erosion aryl flood plain, shall be selected <br />for its plaoaoent. After plaoHnPnt.in the stockpile, the stockpile will <br />be revegetated aocorYiirxj to the Revegetation Plan in Section 2.05.4 (2) (e) . <br />Stockpiled topsoil aryl other materials shall not be moved until required <br />for recL~*rilxrtion on a disturbed area. See Maps 8-1, 6A-2A through G, <br />Map 8-6, 8-7 aryl the Orchard Valley West Mine Fbrtal Topsoil Plaoe~nent and <br />Sediment GUrrtrol drawing in the Soils Appendix, Volume 9 for the present <br />locations of topsoil storage areas. <br />Redistribution <br />Prior to redistribution of topsoil an areas to be revegetated, a return <br />depth of suitable topsoil will be dercr,,,;.,al, Regraded materials which <br />have become hard packed or smooth surfaced would be scarified to an 8-inch <br />depth with a dozer to eliminate slippage surfaces acrd promote root <br />penetration. Topsoil will then be redistributed at an approximately <br />uniform, stable thiclaress with scrapers, front end loaders or dozers. The <br />thic]aress of returned topsoil will be consistent with post-mining land <br />uses, slopes, and the surface water drainage system. The proposed salvage <br />acrd return depths of new disturbance shall be sutanitted to aryl approved by <br />• the Division. Also, topsoil shall be placed in such a manner as to <br />prevent excess camaction and be protected frmn wind and water erosion <br />before arri after it is seeded and planted. <br />Proposed Topsoil Harrdlira Prooedurws <br />The waste disposal area will be sart¢rled upon enlargement of the disposal <br />area to the Fast Ridge disposal area. Any enlargement will be based on <br />mine waste rock a„r,,,,+~. Presently 8" - 9" of topsoil is being salvaged <br />aryl returned to the West Ridge disposal area. <br />As the rock slope entries would be faced-up in existing cut slopes, no <br />topsoil is available for removal and storage. A narraa strip of oakbrvsh <br />acrross the slope above the proposed belt and intake portals sites <br />indicates rmdisturbed soils may exist. Should the portals' construction <br />extend into this vegetated area, the "A" and "B" horizons, approximately <br />24-inches of soil, world be removed and stored as topsoil. The areas of <br />fill foundations would also be stripped of topsoil, if any, and prepared <br />for fill placement. Topsoil would be removed, stored, and redistributed <br />as described earlier in this section. <br />Revised 08/02/90 <br />• 62 <br />