2011-01-24_PERMIT FILE - C1981038

• Permit No: C1981038
• IBM Index Class Name: Permit File
• Doc Date: 1/24/2011
• Doc Name: Cost Summary
• Section_Exhibit Name: Reclamation Cost Estimate MR126
• Media Type: D
• Archive: No

HOURLY PRODUCTION
Hauling Capacity :
Scraper Payload (weight) Basis
Material weight : 2,900 pounds/LCY
Material description :
Decomposed rock - 50% Rock, 50% Earth
Rated payload : 75,000 pounds
Payload capacity: 25.86 LCY
sheet 2 of 2
Scraper Bowl (volume) Basis :
Struck volume : 24.00 LCY
Heaped volume : 34.00 LCY
Average volume : 29.00 LCY
Adjusted capacity : 25.86 LCY "
hourly production reflects volume per scraper pair on push-pull models
Cycle Time : Job Condition Corrections : Site altitude (ft.) : 7,100
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.)**
1 200 10.00 3.00 13.00 710 0.30

Return route :
Haul time : 0.30 minutes
" travel time for each segment is adjusted for acceleration/deceleration. Return time
table velocities are max. attainable per total resistance shown, not average
Total scraper team cycle time (load + haul + maneuver and spread + return)
Unadjusted unit production/hour : 1,550.83 LCY/hour *** Adjusted for job conditions
Optimal number of scrapers per push dozer : NA Selected number of scrapers
Adjusted single scraper team (unit) hourly production
Adjusted multiple scraper team (fleet) hourly production
JOB TIME AND COST
Fleet size : 1 Team(s)
Unit cost : $0.579 /LCY
Total job time
Total job cost
0.10 minutes
2.00 minutes
1,287.19 LCY/hour
2 scraper(s)
1,287.19 LCY/hour
1,287.19 LCY/hour
0.34 Hours
$254