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• F'lHTRTT F. Reclamation Plan The reclamation plan fer the San Isabel yravel pit is based on consultation ;•~ith the Soil Conservation Service, Center Soil Conservation District. The goal of reclamation is to return the site to range land once mining is complz te. At the present time, the per:mir_ area anti surrounding range land has been overgrazed and is in less than op ti miw condition. (See Er:h ibit J - Vegetation Information). Reclamation offers an opportunity to improve the quality of range land on the site. [dater resources, ~.ai ldlife, and air quality in the area will not bz siynificantly affected by mininy and reclamaticn. The plan consists of several steps including removal and storage of topsoil, backsloping of cut banks, grading, replacement of topsoil, and rese=ding ~.ii th native grasses. The stages in the reclamation plan ,dill be scheduled as cutlined in maps and timetables included in Exhibit D - ;lining Plan. The topsoil ;which varies in depth from four (4) to thirteen (13) inches will be removed and stockpiled on approximately one (1) acre in the northeast corner of the permit area (See Exhibit C - f4ap of Affected Lands). Stockpiled topsoil will be packed and seeded with native grasses to minimize erosion and invasion by weeds. The topsoil stockpile area will be fenced to prevent disturbance from mining oper- ations and activities on adjacent lands. Backsloping of cut banks will take place as pit expansion proceeds except in areas where backsloping would interfere with the gravel stockpile area and access road. The preferred slope for all backfilled areas edill be 6:1. In some areas in the existing pit, backslopes will be as steep as 3:1 due to steepness of the cut bank and a limited amount of fill material available. All backsloped areas will be compacted to insure stability. Terraciny or pitting may be used to stabilize steep- er slopes prior to reseeding. Final grading, replacement of topsoil, and reseeding will take place once mining is completed in order to minimize disturbance from ongoing mining operations and in- crease the chances for successful reclamation. The site ~:~i11 be graded to a final topography as approxrmate as possible for grazing and compatible with the surroundinc area. Topsoil ari11 be replaced to an approximate depth of six (6) inches. The top- soil ~ai11 be packed and kept weed free until reseeding is complete. Replacement of topsoil and reseeding will be planned to minimize the possibility of erosion prior to reseeding. P.eseeding will take place from early summer to late fall (July to November) to take advantage of increased soil moisture during the period. Seed will be broad- cast and covered by roller packing or harrowing. Following seeding, a fence ade- quate to exclude livestock will be constructed and maintained for a minimum of five (5) years. A mixture of native grasses as specified by the Soil Conservation Service will be used on the site (including topsoil stockpiles). Species and seeding rates will be as follows: Pure Live Seed Species Variety Rate (lbs/acre) Percent of Mixture Blue Grama Covington or Hachita 3.00 40 Indian ricegrass Paloma 6.00 25 Western cdheatgrass Arriba or Barton 8.00 25 Sand dropseed .LO 10