2016-06-13_REVISION - C1981010 - Laserfiche WebLink

Home Browse Search

TR -115 Response Cont. Page 3 of 8 Original Disturbance (Open Acres) 2171.5 Original Proposed Reclamation -204.2 Original Starting Disturbance, for 2014 WCB 1967.3 Acres that were not reclaimed (of the 204.2) +52.2 Revised Open Acres for 2014 WCB 2019.5 Actual acres disturbed + Proposed to 2017 +101.8 Current + Proposed Disturbance 2121.3 Original 2014 WCB acres -1967.3 Additional Acres to add to Performance Bond 154.0 (52.2 ac. + 101.8 ac. = 154.0 acres) To estimate the cost for these additional topsoil replacement acres, the area was converted to a topsoil volume (based on 12" depth) that would be placed utilizing scrapers with a fleet production rate of 3565.9 LCY/Hour and a cost of $4017.46IHr. These costs were obtained from the April 20, 2015 Circes estimate Task J09 Scraper haul. - It appears the KLM pit disturbed area is increasing in size as a result of TR115. The reclamation cost estimate Table A-11.1 in Appendix A, shows a cost for reclaiming 490.3 acres for the KLM pit. Please update this table to account for the increase in acreage of the KLM pit. Trappers Response: The 154.0 acres that were added to the topsoil placement in table A- 10.6 were included in table A-11.1 (Summary of estimated revegetation quantities and costs) as well. The cost for these additional acres was calculated from the April 20, 2015 Circes estimate task K12 ($516.93/acre). In summary, the items discussed previously, and their respective costs, were input to a cost spreadsheet that compares the current Bond Liability (from the Circes Estimate) to what the updated Bond estimate would be with the additions. The attached table Appendix A Amendment: TR -115 results in an increased bond liability of $332,103.72 which includes "Indirect Costs". If we add this amount to the current bond liability (from Circes), we arrive at the following liability for Trapper Mine: July 20, 2015 Bond (Circes est. liability) $23,016,528.92 Additional liability due to the listed additions: $ 332,103.72 Total new liability $23,348,632.64 New Building Please provide details about the concrete perimeter foundation for the new building. Please provide the dimensions of this foundation. Please update Table A-12.1, in Appendix A to include the new proposed building. Trapper Response: Designs for the blaster's building are attached as Figures I and 2, depicting the building and foundation details for your reference. Appendix A will be amended with the included table with updated bond calculations for the increased liability of the structure.