Laserfiche WebLink
~iiiiiniiiiiiiuiu <br />Mountain Coal Company <br />Weer FJk r+vne <br />Pose OK7as ao: BL 1 <br />SomereeL Colorufu 87484 <br />Tslephon~ 803 88.5016 <br />Fa: 368 928.669G <br />~rr, <br />`~Cb ~~~~t~ne~~ha1 <br />'~~'/ ~ "~v / . man,,, <br />~, <br />October 18, 1994 <br />Ms. Christine B. Johnston <br />Colorado Division of Mmerala & C:eoiogy <br />OiSca of Mined Land Reclamation <br />1313 Sharman 5t., Room 215 <br />Deriver, CO 80203 <br />Re: West Elk Mine, Permh C-80-907, Minor Revblon No. 128 <br />Mtd-Term Rtvlew Raponsea III <br />~T <br />~~ <br />The following are responses to the Division's remaining concerns per your letter of September 21, <br />1994. <br />Those responses were provided under ~parate cover from Greystone Development Consultants, <br />Inc. <br />VEGETATION AND SOILS <br />1. Modification to the text on pai,ea 2.05-61 has been made which reflects the language on <br />page 36 oflrxhibit 51. <br />5. MCC believes an explenntion fc: the apparent discrepancies between Mapa 56, 57, and the <br />Envirocan map is warranted. Maps ~6 and 57 were drafted early in the life of the mine and <br />reflected information based on actual std proposed siting of facilities and sductures at that time. <br />As mine facilities and structures were s•,:baequently constructed, these maps illustrated information <br />which became older and subject to que:.tion. To more accurately reflect the actual on-tho-ground <br />state of the operation, MCC, through linvirocon, prepared the Envirocon map illustrating areas <br />slated for topsoil replacement and the •.~psoil stockpile. The Envirocon map was prepared from <br />1993 aerial photogrammetry, and grour_d truthed, representing the moat accurate portrayal of the <br />mina sites. <br />Apparrnt discrepancies between Maps 16, 57, and the Envirocon map can be explained based on <br />the history of the maps and with an unaarstanding of the preparation of both sets of maps. Many <br />of the discrepancies mentioned appear .o result from overlaying Isiapa 56, 57 and rho Envirown <br />map. Differences in area locations W e explained by rectifying the maps based on known <br />stationary structures in the apedfic are., of the apparent discrepancy. Since all maps (as are aortal <br />photographs) are most accurate yeast distorted) in their center, areas toward the edges of the <br />"6y~ <br />~9~ '~ <br />