Laserfiche WebLink
Southwestern <br />Ecological <br />Services <br />37 East Colorado Avenue • Denver, Colorado 80210-3105 • (303) 906-8096 <br />May 12, 2009 <br />Jared Ebert <br />Division of Reclamation, Mining and Safety CEIvCn <br />Room 215 <br />1313 Sherman Street MAY 13 ZUOU <br />Denver, CO 80203 Division of Keuarnation <br />Mining and Sam <br />RE: New reclamation cost calculation for TR04, Coal Creek Sand Resources, M-1988-044 <br />Dear Jared: <br />After our on-site inspection and discussions, I have recalculated the reclamation costs using a modified version of <br />the Amendment 3 reclamation costs spreadsheet. A print of that spreadsheet is included. <br />The new costs assume all 500 allowable acres will eventually be disturbed (300 acres in Amendment 3 and 200 acres <br />of current disturbance in pre-Amendment 3 land). That probably won't happen because of the spotty nature of the <br />sand deposits, but because it cannot be determined beforehand exactly where mining will occur all that can be done <br />is assume it eventually will all be affected land. Adjustments to this aspect can be taken into account in the future <br />through bond releases once various portions are completed and it is known what land will not be disturbed. Thus, all <br />conceivable disturbance will now be covered by bond. It also assumes that bonding will be released on the <br />undisturbed acreage recently inspected as no additional disturbance will occur in those areas. <br />This results in an increase in the bond amount over what was included previously. The current bond only covers 250 <br />acres rather than 500 acres. The bond did not double because the current bond already included the 150 acre Major <br />Disturbance category. So most of the increase was due to the addition of essentially 100 acres of Minor Disturbance, <br />plus some adjustments in per unit costs. <br />Please note that the Division add-ons are not included in these calculations. You will need to add those to come up <br />with the final bonding amount. This should conclude the information needed for Technical Revision 04. Once this <br />bonding process is concluded, all future adjustments to the bonding should be limited to releases of reclaimed land, <br />releases of land that are known where no disturbance will occur, and any cost adjustments. In short, generally <br />speaking, the bond amount should only go down from this point on. <br />Thank you. <br />Sincerely, <br />WA? Mark A. Heifne <br /> <br />'14 <br />cc: Scott Davis