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2006-12-12_REVISION - M1987028 (2)
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2006-12-12_REVISION - M1987028 (2)
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Last modified
6/15/2021 6:08:04 PM
Creation date
11/21/2007 6:03:30 PM
Metadata
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Template:
DRMS Permit Index
Permit No
M1987028
IBM Index Class Name
Revision
Doc Date
12/12/2006
Doc Name
Conversion Appl
From
Colorado Marble, L.L.C.
To
DRMS
Type & Sequence
CN1
Media Type
D
Archive
No
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EXHIBIT L--- RECLAMATION COSTS RECEIVED <br />Topsoil Recovery and Stockpiling DEC 12 2006 <br />Division of ReGamatlon, <br />Above Highwall Benches Mining and Safety <br />An estimated 20000 tons of topsoil maybe available for recovery and application sourced <br />from the slopes above the highwall benches. This material will be bulldozed, loaded and <br />hauled, or moved with a scraper to develop an elongate topsoil stockpile area north and <br />west of the existing footwall interface. Track mounted excavator may be used to "pull <br />back" soil from the edge of the existing highwall contact for loading and haulage to <br />stockpile areas above. After bench development has been completed starting from the <br />southern end of the marble outcrop along the footwall(west) side of the deposit, topsoil <br />will be applied to the flat bench tops in prepazation for re-vegetation. <br />Life of Mine Estimates: <br />Topsoil recovery: <br />Bulldozer (250 HP) Efficiency: 300 tons per hour O&O Cost: $140/hour <br />20000tons/300tons/lu= 67 hours @ $140 = $9380 <br />Excavator (2yd minimum) Efficiency 250 tons per hour O&O Cost: $120/hour <br />20000 tons/ 250 tons/hr = 80 hours @$120 = $9600 <br />Trucks End Dump, 15 yazd, 1000' haul @ 2° grade, est. eff. 150 ton/hr O&O $85/hr <br />20000 tons/150 tons/hr =134 hrs @$85 = $11390 <br />Topsoil Grading to Stabilize, Bulldozer, 20 hours @ $140 $2800 <br />Interim Seeding and Mulching 4 acres maximum @ $850/ acre (seed &mulch) $3400 <br />Topsoil Application Cost Estimate-Above Highwall <br />Excavator (2 yd min) Efficiency 250 tons/hr O&O Cost: $120/hour <br />20000 tons / 250 t/hr = 80 hrs @ $120 = $9600 <br />Trucks, End Dump, 15 yard, 1000' haul @ - 2° grade eff. 150 t/hr O&O $85/hr <br />20000 tons /150 tons/hr = 134 hrs @ $85 = $11390 <br />Bulldozer (250 HP) Eff: 500 T/hr O&O $140/hr <br />Grading topsoil on benchtops, 20000/ SOOt/hr = 40 hrs @ $140/hr $5600 <br />Topsoil disking, chiseling, or contour furrowing... Tractor O & O $ 80/hr <br />Est. 20 acres of disking @ 1 ac/ hr efficiency $1600 <br />24 <br />
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