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C TWBNTYMI6B <br />~ COAI. COMPANY <br />A Cyprus Amas Company <br />iiiiiiiiiiiiiiiiiii <br />Twentymile Coal Company <br />29515 Routt County Road #27 <br />Oak Creek, Colorado 60467 <br />970-679-3800 <br />July 21, 1997 <br />RECEIVED <br />Janet Binns <br />Environmental Protection Specialist JUL 2 ~ 1881 <br />Division of Minerals and Geology <br />I ; 13 Sherman Street, Room 215 <br />Denver, Colorado 80203 Division of mmeralfi & Geology <br />Re: Permit No. C-82-056: Minor Revision 97-148 -Facilities Additions 6/97 <br />Dcar Ms. Binns: <br />Enclosed are a revised Application Fonn, penni[ pages 2.05-23(a), 2.05-54(f)(68), and 2.05-54(f)(68a), <br />and Table 49A for the above referenced Minor Revision to Pemtit No. C-82-056. These pages have been <br />revised due to a re-alignment of the access road from [he batch weigh loadou[ stockpile area to the waste <br />pile and adjustments to bond calculations included with [he Division's approval letter. <br />The access road alignment that was previously submitted has been shifted slightly to the south to decrease <br />the amount of turning required for dozer traffic on the roadway. The new alignment of this roadway <br />results in an increase in the area that must be stripped of topsoil and is across an area that was not <br />previously disturbed. The estimate of topsoil salvage volume for the new alignment of 444 cy is based on <br />a 30' wide, 300' length of road in a previously undisturbed area with a topsoil depth of I6". The topsoil <br />salvage volume estimate submitted with [he original Minor Revision was 333 cy. The adjusted alignment <br />and change in topsoil salvage volume will be shown on Maps 24 and 29 with TCC's next revision <br />submittal. <br />Bond calculations were adjusted to match the estimates provided by the Division with [he approval letter. <br />Additional topsoil will be salvaged due to [he change in road alignment and the total bond calculated for <br />this revision is $7,355.00. <br />Thank you for your cooperation in this matter. If you have any questions or require further information, <br />please contact me at (970) 870-2750. <br />TWENTYMILE COAL COMPANY <br />~~.~ ,~' <br />Taxis D. Rogers, P.E. <br />Environmental Engineer <br />Enclosures <br />/tdr <br />