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Mining will develop a gravel pit to a depth of approximately 10 feet. No groundwater is <br /> expected to be encountered during excavation and mining;therefore, no impact to the <br /> hydrologic balance is anticipated. No acid or toxic producing materials will be exposed during <br /> mining. No explosives will be used in conjunction with mining or reclamation. All interior haul <br /> roads will be temporary and will be reclaimed after the mining has been completed. <br /> This is a privately owned site and does not require the State Historic Preservation Office <br /> requirements for a cultural or historic study. If the operator encounters any structure of note, <br /> the State Historic Preservation Office will be notified. <br /> 6.4.5 Exhibit E <br /> Reclamation Plan <br /> Reclamation of the site will be of back to the original rangeland use of the site. The land <br /> has historically been rangeland and will be returned to such uses following mining operations. <br /> Slopes will be returned to a 3H:1V slope or flatter when mining has concluded,thus <br /> allowing for reclamation to immediately follow mining as the site progresses. As topsoil, waste <br /> rock and overburden are removed from the working face,they will be stockpiled for future <br /> reclamation use. Throughout mining, slopes will be maintained at a 3H:1V minimum, except for <br /> the active mine face. Waste rock and overburden will be placed on the pit floor as quantity <br /> allows. Three inches of topsoil will be replaced on affected surfaces. If necessary, surfaces will <br /> be roughened prior to seeding. All materials used for backfilling will be generated from onsite <br /> sources. Onsite topsoil will be adequate for reclamation purposes. No importation of materials <br /> for reclamation purposes will be necessary. <br /> No trees, shrubs, or bushy-type vegetation will be planted in the rangeland area of the <br /> site. Only the appropriate grasses selected by the NRCS will be used. The operator will use the <br /> seed mix on this site. The seed will be broadcast at the rates below. <br /> Table S- Proposed Seed Mix <br /> Spec Caboms/R, <br /> Keystone <br /> Common Harare Scientific IkonrerLdatrme V Pnedp FiSEpedeis <br /> o Pl5!lb. I thss/ac� <br /> aiety Zone � E i <br /> Green needlegrass Nassella wndula Lodorm 12 NC 181 C0^_ 0.50 <br /> lndwn Ricegras5 Ac,3narherum hymenoides 8 NC 141,005 0.50 <br /> LRtle Bluestein scopanum Aldous 14 I NW 260,000 1 0.40 <br /> Sand Dropseeo --aocr✓s cryptandrus 8 XX `NW 5,298,000 0 15 <br /> V Sand lovegrass E•aaros's mchodes Nebraska 27 NW 1 500,000 0 15 <br /> Srdeoats Grams BWreloua curtipendu/a Vaughn 12 XX NW 191,000 0 so <br /> Western Wheatgrass Pasco rum SM)w Aruba 10 XX NC 110,000 200 <br /> Total 4.20 <br /> ECS Quote <br /> $58.75/AC <br /> Page 6 of 16 <br />