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<br />C cr~~us <br />~ Yampa Valley <br />III IIIIIIIIIIIII III <br />999 <br />Cyprus Yampa Valley Coal Corporation <br />29587 Routt County Road #27 <br />Oak Creek, Colorado 80467 <br />303-879-3800 <br />April 20, 1992 <br />Kent Gorham <br />Reclamation Specialist <br />Mined Land Reclamation Division <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />Dear Mr. Gorham: <br />F~~~CEIV'~L~ <br />APR 2 3 199 <br />Mined Land <br />RE: MR 92-74 Permanent Waste Rock Disaosal Site Investisation. Permit <br />No. C-82-056 <br />Twentymile Coal Company is requesting a minor revision to the above referenced permit to <br />allow for the conducting of a site investigation to determine final location artd design parameters <br />for a permanent waste rock disposal site. This site will also accommodate reject material <br />generated from a future preparation plant. Once the revision is approved it is anticipated cite <br />field work will commence in late May, although the schedule is dependent on weather and field <br />conditions. <br />The site investigation will require field reconnaissance, backhoe test pits and borings. It is <br />anticipated an auger will be used for the borings, although a rotary rig may be used if necessary. <br />A total of four test pits and five borings aze proposed in this minor revision. Along with this <br />activity another five borings and two test pits will be covered by a notice of intent. As you can <br />envision the disturbance resulting from this activity will be very limited. <br />I u-ould suggest that the proposed bond of $2,100 be noted and deferred until the bond is <br />finalized during the midterm review. This would be the most effective manner to handle the <br />bonding resulting from this activity. <br />If there are questions, please contact me at your convenience. <br />Sincerely, <br />Richard Mills <br />Supervisor, Environmental Affairs <br />RAM/rm/pe/dg <br />Attachment <br />