2009-06-18_PERMIT FILE - C1981018A

• Permit No: C1981018A
• IBM Index Class Name: Permit File
• Doc Date: 6/18/2009
• Doc Name: Reclamation Cost Estimate
• Section_Exhibit Name: Illustration 47
• Media Type: D
• Archive: Yes

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HOURLY PRODUCTION sheet 2 of 2
Haulinq Capacity :
Scraper Payload (weight) Basis : Scraper Bowl (volume) Basis :
Material weight : 2,550 pounds/LCY Struck volume : 24.00 LCY
Material description : Heaped volume : 34.00 LCY
USER-PROVIDED WEIGHT DATA Average volume : 29.00 LCY
Rated payload : 75,000 pounds Adjusted capacity: 29.00 LCY ***
Payload capacity : 29.41 LCY hourly production reflects volume per scraper pair on push-pull models
Cycle Time : Job Condition Corrections : Site altitude (ft.) : 5,300
Scraper Push dozer Source
Scraper loading time 1.00 minutes Altitude adj.: 1.000 NA (Cat HB)
Maneuver and spread time : 0.60 minutes Job efficiency : 0.830 _
NA (Cat HB)
* load time per scraper pair on push-pull models Net correction : 0.830 NA
Travel time :
Road condition description :Firm, smooth, rolling, dirt/It. surfaced, watered, maintained
Haul Route :
Seg. # Haul distance (feet) Grade (%) Roll. res. (%) Total res. (%) Velocity (fpm) Travel time (min.)**
1 900 0.00 3.00 3.00 2800 0.62

Return route :
Haul time : 0.62 minutes
3.00 2949 0.46
travel time for each segment is adjusted for acceleration/deceleration. Return time : 0.46 minutes
table velocities are max. attainable per total resistance shown, not average
Total scraper team cycle time (load + haul + maneuver and spread + return) : 2.69 minutes
Unadjusted unit production/hour : 1,295.77 LCY/hour *** Adjusted for job conditions : 1,075.49 LCY/hour
Optimal number of scrapers per push dozer : NA Selected number of scrapers : 2 scraper(s)
Adjusted single scraper team (unit) hourly production : 1,075.49 LCY/hour
Adjusted multiple scraper team (fleet) hourly production : 3,226.47 LCY/hour
JOB TIME AND COST
. Fleet size : 3 Team(s) Total job time : 7.55 Hours
Unit cost : $0.582 /LCY Total job cost : $14,183