PERMFILE55912

• Permit No: C1996084A
• IBM Index Class Name: Permit File
• Doc Date: 1/11/2005
• Section_Exhibit Name: Exhibit 23 Bond Calculations
• Media Type: D
• Archive: Yes

CIRCES Cost Estimating Software
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PROJECT IDENTIFICATION
Task # : 041 State :Colorado
Date : 12/15/2004
User : JRS
County :Las Animas Abbreviation :none
Site :Lorencito Canyon Mine Filename :C084-041
Agency or organization name : Colorado Division Of Minerals And Geology
Permit or otherjob action : Current Permitted Estimate
Task description : Replace Topsoil from Upslope Area to W-4
HOURLY EQUIPMENT COST
Basic machine : Cal D9R - 9SU Horsepower : 405
Blade type : Semi-Universal _
Attachment no. 1 : ROPS Cab ShiFt basis : 1 perday
Attachment no. 2 :3-shank ripper
Data source : (CRG)
Utilization
Cost Breakdown : Ownership cosUhour : $51.01 NA
Operating cosUhour : $93.54 100
Ripper op. cost/hour : $0.00 0
Operator cosUhour : $31.76 NA
Total unit cosUhour : $176.31 Total fleet cosUhour : $352.63
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MATERIAL QUANTITIES
Initial Swell Loose
volume : 1,090 BCY factor : 1.250 volume : 1,362 LCY

Source of estimated volume :Table 2.05.4- 1f
Source of estimated swell factor :CAT Handbook
., r. :,,.
HOURLY PRODUCTION ;;
Job Condition Correction Factors ,
Source
Operator skill : 0.75 (avg.) _
Average push distance : 125 feet Material consistency : 0.90 (Cat HB)
Unadjusted hourly production : 1,055.6 LCY/hr Dozing method : 1.00 (gen.)
Visibility : 1.00 (avg.) _
Material consistency description : Job efficiency : 0.83 (lshift/day)
Compacted fill orembankment Spoil pile : 0.60 (fnd-sf)
Push gradient : 1.11 (Cat HB)
Average push gradient : 5.00 % (neg) Altitude : 1.00 (Cat HB)
Average site altitude : 7,100 feet Material weight : 0.90 (Cat HB)
Blade type : 1.00 (S/SU/U)
Material weight : 2,550 Ibs/LCY Net correction : 0.34
Weight description
Earth -Dry packed
JOB TIME AND COST
PermiUjob# : C-96-084
Adjusted unit production : 356.86 LCYmr
Adjusted fleet production : 713.72 LCYlhr
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