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Means Site Work Cost Data 1989 (MCD), has been utilized as the basis far <br />determining facility demolition costs because it is genrrally oorUistent <br />with recent oontractar quotations far demolition and n+emonral of facilities <br />similar to those existing at the Southfield Mine. the following sections <br />detail the various assumptions and methods used to calculate the bond <br />amamt. <br />ME1tI0D01AGIFS AND ASS[2~TIONS - SPF7CIFIC APPRDACfi <br />Determination of the bcxd amamt necessary to provide far oaq~lete <br />reclamation of the Southfield mine, loadout and associated facilities <br />irnolve3 a series of logical steps. <br />o Identification of distiu~bance areas . <br />o Determination and sequencing of required reclamatiw~ functions <br />o ip*p*~+~i*+ation of material handling requirements <br />o Calanlation of e~T *+* produ~ctivities <br />• o pets,-minatio~ of equipmetrt hares <br />o Development of erF~ipmen+}, labor, demolitirn, and xevegetation <br />unit oasts <br />o csllculation of total costs far each reclamation ftuiction <br />o Development of cost estimates far project overhead and <br />oontractar profit <br />o Determination of the total estimated bond surety necessary to <br />provide far oa~lete reclamation of all disturbed awe <br />the following sections desaribe the assumptions and ~~ooechse, utilized in <br />developing ead~ ocmQonent of the hording cost estimate. <br />IDENPIFICATION OF DIS'i[]RBANCE ARFAS <br />ZYrere are five (5) main areas of disturbance. 'i?tey are the mine <br />facilities area (includes pnei~atic opal drying installatiar), the refuse <br />pile area, the Ponds 3 and 4 area, the loadart area and the south mine fan <br />. installation. '!tress areas are shown on the in~rini+ Area Soils Map (Map <br />15), the Mine Plan Map, (Map 17), arcl the Mine Surface Facilities Map, <br />(Map 18). <br />e~,,,,~„~, 2 R Revised -April 1992 <br />