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<br />J <br />T 2~ <br /> <br />PEABODY COAL COMPA <br />ROCKY MOUNTAIN DIVISION <br />10375 EAST NARYAgD AVENUE <br />SUITE X00 <br />DENVER, COLO RADO 503]1 <br />(!O ]) 737580! <br />July-10, 1984 <br />Ms. Sandra Emrich <br />Reclamation Specialist <br />Mined Land Reclamation <br />423 Centennial Building <br />1313 Sherman Street <br />Denver, CO 80203 <br />N <br />Dear Sandy: <br />RE: MINOR REUISION N0. 13, <br />WADGE AREA TOPSOIL <br />SALVAGE ADJUSTMENT, <br />SENECA II MINE <br />PERMIT N0. C-005-80 <br />• Attached please find five (5) copies of material to support a <br />requested topsoil salvage adjustment in the Wadge coal seam area. <br />The specific area is shown on the attached Figure 9-A1. The area <br />involved in this request is 6.5 acres or 10.93 acre-feet. All <br />calculations in this request are based on Peabody Coal Company's <br />existing, approved permit application. <br />Safety, equipment limitations, and thin topsoil are the main factors <br />supporting this request. Slopes in the requested area range from <br />40% to 50% (22° to 27°). In other steep slope locations, but less <br />than 40%, topsoil has been salvaged by pushing the topsoil downslope <br />with a dozer and picking it up at the bottom of the slope with a <br />scraper. Topsoil in those areas was generally thicker than in this <br />area. If by chance the operator got into a potentially dangerous <br />situation because of the steepness he could lower his blade and use <br />it as a braking mechanism. In this area, the topsoil is too thin to <br />slow the machine down, also, if the blade was lowered this would <br />result in excessive topsoil contamination (shale and sandstone bedrock). <br />As noted in a previous revision request (M.R. No. 6} that the steepness <br />in this same general area was causing equipment failure. The steepness <br />was causing loss of oil pressure which could cause severe equipment <br />damage. <br />L..I <br />