Laserfiche WebLink
303-279-8532 <br />303-279-1609 Fax <br />eeeoscar@att.net <br />TECHNICAL MEMORANDUM <br />To: Ms. Anne Beierle, $enderson Mine <br />From: Mike Ellis ~. ~• ~. <br />Date: September 12, 2002 <br />Subject: Revised Cost Estimate for Demolition of the Henderson Conveyor <br />In August of 2002 Climax Molybdenum Company (CMC) commissioned Ellis <br />Environmental Engineering, Inc. (EEE} to prepaze a revised cost estimate for the <br />Henderson Overland Conveyor System. The original cost estimate was prepared in <br />December 1997, prior to construction. This technical memorandum and attachments <br />summarize the information, measurements, assumptions, calculations, and reference <br />materials used to prepaze the revised cost estimate. <br />Background <br />Climax Molybdenum Company and Fluor Daniel, Inc, provided (EEE) with a number of <br />design drawings of the overland conveyor system, including a plan view and profile of <br />the conveyor route, a typical cross-section of the conveyor housing, plan view and <br />sections of the drive house, and numerous detailed drawings of the bents and trusses for <br />the elevated portions of the conveyor system. Using real-life demolition cost data from <br />other mine sites in the U.S., including (1) the reclamation and decommissioning of the <br />Horizon Mine in Eddy County, New Mexico, (2) the Crystal Hill Mine in Saguache <br />County, Colorado, and (3) the Storke Area structures at Climax Mine in Colorado, a <br />revised cost estimate for the Henderson Conveyor System was prepared. In addition to <br />the data ar:d information mentioned above, EEE has had several recent conversations <br />with contractors involved in mine demolition projects for Phelps Dodge Corporation and <br />other mining companies. The Henderson conveyor drawings, EEE's personal <br />experiences at Phelps Dodge sites, and the resources and knowledge of demolition <br />contractors at other mines, have all been integrated to develop the revised cost estimates <br />provided in this technical memorandum. <br />Ellis Environmental Engineering, Inc. <br />4342 Ulysses Way <br />Golden, Colorado 80403 <br />