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INTEROFFICE MEMORANDUM <br />TO.- ROB ZUBER <br />FROM: JASON MUSIQC? <br />SUBJECT: G 1981-010 TRAPPER MINE 2010 MIDTERM REVIEW QOST ESTIMATE RESPONSES <br />DATE: 10/22/2010 <br />Attached is the reclamation cost estimate revisions for the 2010 Trapper Mine Midterm Review based on <br />concerns brought forth by TMI. The Division revised the reclamation cost estimate for Task 025-K-Pit <br />Regrade Truck/Loader with costs reflecting Loose Cubic Yards rather than Bank Cubic Yards delineated <br />in the initial 2010 Midterm Cost Estimate. Trapper is correct in identifying that the material used to <br />regrade the K-Pit will have been previously moved and experienced swell. This updated estimate total <br />for Task 025 is $7,274,805.00. This estimate is $1,818,701.00 lower than the initial 2010 Midterm Cost <br />estimate due to a change in hours of 1570.36. <br />The costs for anticipated revegetation failure have been revised to reflect 17.5% rather than the previous <br />20%. This update is based on correspondence between the Division and TMI and the approved permit. <br />The cover page entitled Cost Differences - PR-06 vs. 2010 Midterm Review, identifies the changes in <br />costs and hours for equipment associated with tasks required to fully reclaim the site. The truck/loader <br />fleet has been revised to reflect the above referenced change and the increase of revegetation costs due to <br />the 17.5% revegetation failure costs make up the majority of changes. The truck/loader costs represent <br />the utilization of a loader rather than a shovel as estimated in the PR06. The revegetation costs represent <br />an increase in the cost for seed and the addition of a 17.5% estimated failure rate that was not included in <br />the PR06 estimate. <br />