Laserfiche WebLink
The Division has updated all Truck/Excavator tasks to correct support equipment and%utilization. <br /> • CIRCES Task#N17(IIJPit Spoil Stockpile Truck/Excavator Topsoil Placement): <br /> o The discrepancy with this task is very similar to task NJ6 above, in that the <br /> CAT6090/Komatsu 830E fleet was used in the CIRCES estimate and the CAT <br /> 385/777 fleet was used by Trapper. <br /> o This resulted in the Trapper estimate being$62,889 greater than the CIRCES <br /> estimate. <br /> The Division has updated all Truck/Excavator tasks to correct support equipment and%utilization. <br /> • CIRCES Task#L19(L Pit Truck/Excavator Topsoil Placement): <br /> o An $812,836 bust in Trapper's estimate was discovered, whereas the "Total <br /> Cost"cell equation (Excel spreadsheet) (App. A, Table A-10.7A)did not tabulate <br /> the entirety of the L Pit topsoil placement tasks. <br /> o Upon correcting this, the task fell in line with the CIRCES task estimate within <br /> $5400, at$1,727,086 instead of the$914,250 originally reported. <br /> The Division has noted this discrepancy in the provided Trapper's RCE.No changes were applied to the <br /> Division's RCE. <br /> • CIRCES Task H097(East Panel Ponds &A Road Truck/Excavator Topsoil Placement: <br /> o The CIRCES volume combined both the scraper(114,647 cy) and <br /> truck/excavator(244,270 cy)volumes (total 358,917) into one singular scraper <br /> task; and then swelled it(436,084 cy) which resulted in a CIRCES cost of <br /> $997,685. <br /> o This cost was $$551,902 greater than the Trapper cost of$445,782. <br /> o Apparently, CIRCES estimated this task utilizing a scraper fleet at a unit cost of <br /> $5835.02/cy vs Trapper's$2318.14/cy. <br /> The Division has corrected this error and correctly split the associated volumes into a Truck/Excavator as <br /> and Scraper task. See Task 097 and 097a. <br /> ■ Trapper: Trapper also disagrees with the use of a swell factor that is represented on nearly all of <br /> the topsoil scraper tasks. This material has already been stripped, and in every case is being <br /> removed from a stockpile for placement. The swell of the material would have already occurred <br /> during the initial stripping process. Trapper does not swell this material in storage, or after <br /> pickup and laydown. Our estimate for yards needed for reclamation is based on known and <br /> established quantities stored in the topsoil piles on the site. The use of a swell factor in the <br /> CIRCES run unnecessarily inflates the yards and estimated cost of movement above Trappers <br /> estimate. Furthermore, the swell factor was not universally applied to all topsoil tasks. All <br /> materials on the site, whether it is topsoil or overburden movement has already been swelled <br /> from its initial movement and would not need to be expanded again for final placement. Trapper <br /> requests no swell factor be applied to any materials in the bond estimate. <br /> Trapper Mine RCE Memo February 3,2022 <br />