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• 2000 Soil Replacement Thickrcss <br />SCC is required by Permit C-94-082 end Section 4.06.4(2)(b) of Colorado's Regulations for Cast Miniog m docurrcm end record <br />dre soil replecemem lhickrces for each reclamation black- using a minimum sampling intensity of one hole ptt five setae. The soil <br />replacement thickrcas information is used to adjust soil salvage depths, if necessary, and Cor bond release purposes. Soil <br />rcplecement thickrcee was nm measured during the 2000 field season since no topsoil was replaced on graded spoil in 2000 <br />Soil Balance <br />SCC ie submitting the soil balance with the Annual Ralematioo Report u required by Pemdt C-94-082, Teb 21, Pages 5, 25, and <br />26, erd ss recommended by Section 32.04.13(2) of Coloado'e Regulations for Coal Mining. The Boil belarce is wmpleted to <br />ensure soil is mlveged, stockpiled, and replaced act rccommerded and approved in the permit, end, if naessery, to reedjun the soil <br />selvage end redistribution thickness. The soil information is also used to update Ilre soil volume information previously subrmtted <br />with the 1999 Annual Reclamation Report (SCC, 2000) erd confirm the mean soil replacement t6ickrcae for the first fivo-yeer <br />permit term. <br />Soil SelvaEe end S[orepe <br />The diamrfiance arcs from which soil was salvaged erd the soil nackpile sites ea of December 31, 2000 arc drown op drawing <br />Y2000-2a.DWG. Durirrg 2000, ell soil wee irtWorted to stockpiles G M sod O. <br />• The actual volume of soil selvaged and stockpiled from 1995 through December 31, 2000 wee deternrirred by field survey of <br />coning soil stooge stockpiles. The bete and exiettng elevations for tech stockpile were completed by the Seneca eogircering staff. <br />The stockpile volumes as of December 31, 2000 are Gated in Table 00.1. AB of December 31, 20(10, T28.0 acre-feet oC sail were <br />nockp0ed in the mining area <br />Soil Balance and Reolecement <br />The soil bslarrce is edculeted for Yoan Mirc by congrering the diatucbence area tlxt requires roil rcplneemem na of December 3I, <br />2000 with the soil reserve in nockpiles. The disturbance area for Yomt Mine, shown on drawing Y2000-2s.DWG, totaled 587.0 <br />scree on December 31, 2000. No soil wee selvaged or needs to be replaced beneet6lhe soil stockpile dten. Also, Flaul Road A and <br />Haul Roed B ere permmeru pos[mine facilities (9.9 acres), soil will ody be replaced on a portion of those roads effectively <br />narrowing them to 20 feel wide. Topao0 has been replaced on 63.3 acres of disturbed Brea though December ]I, 2000. Therefore, <br />the IaWI dismfiance arcs requiring topsoil es of December 31, 2000 was 513.8 scree et the mire Bite. <br />Soil Reolecement Thickness <br />The soil rcplacemcnt thickness for the first five-year pemrit term was projected to be 1.0 feet for the mine Brea. The soil balance es <br />o(Deccmber 31, 2000 was calculated es follows: <br />• Mine Aru <br />Total disturbance erect = 587.0 acres <br />2 <br />