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RECLAMATION PLAN EXHIBIT D <br /> 6 .3 .4 - Final grading will be such that the topography is <br /> appropriate to the reclaimed use of the property, i .e . , as range- <br /> land. The slopes left when mining ends will be graded 3h to lv <br /> and the floor of the mine will gently slope from south to north. <br /> The Reclamation Plan Map - Exhibit E-2 shows how we think the area will <br /> look when it is reclaimed. <br /> Reclamation will begin as the exterior limits of the mine are <br /> reached and we begin to mine the outer slopes to their final rate . <br /> This will be done to reduce the bond amount and leave 3 : 1 slopes, <br /> that will only need resoiling and revegetation if mining ended <br /> prematurely. Once enough area is done and will not be disturbed <br /> again, the salvaged topsoil will be spread on the excavated and <br /> exterior slope area. The depth of the replaced topsoil will <br /> average 5 inches . If needed, fertilizer will be used to enhance <br /> the seedbed. It will be spread on the seedbed and disced in <br /> during seedbed preparation. <br /> Seeding will occur between November 1st and May 15th. Gener- <br /> ally before the first freeze in the fall or after the last freeze <br /> in the spring. The seed will be drilled to insure maximum germi- <br /> nation and most rapid cover establishment . The seeding mix and <br /> species of grasses to be used on the area are shown on page 26 of <br /> this report . This is a seed mixture was prepared by the NRCS for <br /> use in Yuma County and it has been used successfully on other <br /> gravel mines in this area . The seed will be obtained from a <br /> supplier in the area so the mix is adapted to local conditions . <br /> We also expect to see a natural invasion of forbs and other grass <br /> species from surrounding areas . Only inaccessible areas (if any) <br /> will be broadcast seeded. If the seed is broadcast, the seed <br /> rates will be doubled. Mulch will be placed and crimped on the <br /> area when seeding is complete . No trees or shrubs will be planted <br /> at this time . <br /> Weed control will be implemented prior to and during <br /> revegetation activities . This does not mean we will attempt to <br /> kill all weeds, since some provide a natural ground cover and <br /> shade for emerging grass . We will concentrate on controlling the <br /> noxious weeds on the reclaimed area, following the Weed Control Plan <br /> prepared for the site . Cattle will be kept off the site during <br /> the first two years to insure the seed takes . If necessary the <br /> area will be fenced using a single strand of electric fence <br /> around the seeded area. After the second growing season the site <br /> will be inspected and an assessment of revegetation success will <br /> be done to determine if additional seeding will be necessary. If <br /> the analysis shows additional work is needed it will done that <br /> fall . <br /> 30 <br />