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Sent By: CEMEX; <br />3038232199; Mer-10-03 5:13PM; Pege 4/a <br />4. Banks and Gesso applied a unit cost of $0.25/cf to demolish all buildings anti stmcturrs on <br />site. The 17ivlaion has a more detailed unit cost for structtval demolition dePeading on the <br />composition of the sttvcttrts, height and disposal location (within 50 feet or hauled to a <br />landfill). ff ~X proposes to demolish and bury sttucuus on sits. the cost could range <br />from $0.115 to 50,150, less than the 50.25 proposed by Banks and Gesso. However, if the <br />structures need to be hauled w an approved landfill off site, the cwt may range between <br />$0.694 and $0.837, considerably higher than the Banks and Gesso estimau. Attached i$. a <br />table of derolition costs for your reference. <br />5. t~C provided a bond calculation map that is very helpful in deunairting the nattue and <br />location of sutrcanes at 8ie cement plant However, the map did not conteia a scale <br />necessary to deurmine the size of the structures. Please notify the Division as to the scale <br />of Ure n1ap, or provide a new map depicting a scale. <br />6. Gn Table 2 of Estimate B, Banks end Gesso itemized the quantity and unit costof concrete <br />demolition is the amount of 2,698 cY for the grinding pt+ooess area and 3,768 cy for the <br />burning process area. However, Table 4 and Table 5 otrtlitus the "concrete in place" for <br />each structtue (16,828 cY in the grinding ttrca and 10,068 cy for the burning area), which is <br />significantly higher than the amounts listed in Table 2, Please explain why the °concrete in <br />place" amount was not used es a factor in the reclamation cost estimate. <br />7. Please itemise all hazardous wasu and chemicals stored on site that will need to be removed <br />upon reclamation. <br />8. The teclatnatian cost estimate needs to include additional factors that would be inctured by <br />the Division in the event of bond forfeiture. A cost for mobilization/demobilization to and <br />from the job site should be 'included in We estimate. In addition, a number of factors make <br />up the indirect cwts anti include liability insurance (1.55% of direct), performance bond <br />(1A59'o of dit~ect), profit (10% of direct), eagitteering work and/or centracUbid preparation <br />work, and reclamation management and/or administration (596 of dirst:t and mandated by <br />Rule 6.3.4(2)(c)). Please incorporate these costs into the reclamation cost estimate. <br />please address the abovenoted quesGions/concears byApril) 1, 2003. Tf yew have any <br />questions, please do not hesitate to contact me at 303-866943. <br />S y, <br />s. t,.rosby <br />Environmental Protec a Specialist <br />EIIC10SnIC(5) <br />cc: Carl Mount; DMG <br />