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iiiiiiiiiiiiiiiiiii <br />The Pittsburg & Midway Coal Mining Co. <br />Mr. William Crick EP ~ 5 ~gg~ <br />Mined Land Reclamation Division S <br />Colorado Department of Natural Resources Mined wand <br />1313 Sherman St., Room 215 9 tViSio(! <br />Denver, CO 80203 , eclamation D~ <br />Re: The Pittsburg & Midway Coal Mining Co., Edr'~Mine, Permit No. C-80-001 <br />West Ridge Hydrologic Reconstruction Plan: Response to Adequacy Review <br />A Chevron Company <br />6400 Sauth Fiddler's Green Circle, Englewood, CO 80111 . Phone 130319303600 p p <br />Sept. 3, 1991 '`,'.~~.,?~a ~.~~ .. <br />Dear Mr. Crick: <br />Enclosed are the West Ridge Hydrologic Reconstruction Plan ("The Plan") deficiency corrections <br />per the MLRD adequacy review letter (July 15, 1991) and the subsequent MLRD/P&M meeting <br />(August 2, 1991). Enclosed materials address the bonding liability and the addition of a completion <br />date for this project. <br />The liability for The Plan has been calculated at $372,565. Conservative values were used to <br />calculate this amount and are described in the enclosed attachment entitled "West Ridge Hydrologic <br />Reconstruction Plan Liability Evaluation". Additionally, P&M has conducted an analysis of Edna <br />Mine's existing bond to determine whether a rider is required to cover The Plan's liability. <br />Significant changes have been made to the mine plan since this bond was last adjusted. This <br />evaluation took into account only the change in pit layout with regard to highwall reduction (i.e., <br />regrading the final pit); all other bond aspects were presumed to remain unchanged. Total highwall <br />length in the worst case year (Year 3) has changed from 9,650 to 3,500 feet. At $110.26/foot, <br />the highwall reduction liability is lowered from $1,064,009 to $385,910. Therefore, an excess <br />of $750,000 is contained in the current bond, which is more than adequate to cover The Plan's <br />liabilities. It is P&M's understanding that the November, 1991 permit renewal will include a <br />comprehensive evaluation of the mine's reclamation liability. <br />The target date for final completion of the reconstruction plan has been set at the end of the 1995 <br />construction season. The updated pages regarding this change are enclosed and replace the last two <br />pages of Appendix 4.6-M in The Plan. <br />P8M looks forward to the receipt of the MLRD's approval of The Plan. If you require additional <br />information or have further questions please contact Wayne Erickson, Brian Gontarek, or me. <br />Respectfully, <br />Susan Hoffineister <br />Enclosures <br />oc: Wayne Erickson - P 8 M, Denver <br />Brian Gontarek - P & M, Denver <br />