2010-02-22_PERMIT FILE - C1980007A

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 2/22/2010
• Doc Name: CIRCES Cost
• Section_Exhibit Name: Exhibit 53 Reclamation Cost Estimate Part 3
• Media Type: D
• Archive: Yes

HOURLY PRODUCTION ixx:
sheet 2 of 2
Hauling Capacity :
Scraper Payload (weight) Basis : Scraper Bowl (volume) Basis :
Material weight : 2,550 pounds/LCY Struck volume : 21.00 LCY
Material description : Heaped volume : 31.00 LCY
Earth - Dry packed Average volume : 26.00 LCY
Rated payload : 75,000 pounds Adjusted capacity : 26.00 LCY "
Payload capacity : 29.41 LCY hourly production reflects volume per scraper pair on push-pull models
Cycle Time :
Scraper loading time * : 1.00 minutes
Maneuver and spread time : 0.60 minutes
* load time per scraper pair on push-pull models
Job Condition Corrections : Site altitude (ft.) : 6,300
Scraper Push dozer Source
Altitude adj.: 1.000 NA (Cat HB)
Job efficiency : 0.830 NA (Cat HB)
Net correction : 0.830 NA
Travel time :
Road condition description : Rutted dirt little maintenance, no water, 1 " tire penetration
Haul Route :
Seg. # Haul distance (feet) Grade (%) Roll. res. (%) Total res. (%) Velocity (fpm) Travel time (min.)""
1 2,000 -10.00 4.00 -6.00 2192 0.98

Haul time : 0.98 minutes
Return route :
** travel time for each segment is adjusted for acceleration/deceleration. Return time : 1.89 minutes
table velocities are max. attainable per total resistance shown, not average
Total scraper team cycle time (load + haul + maneuver and spread + return) : 4.47 minutes
Unadjusted unit production/hour : 697.45 LCY/hour *** Adjusted for job conditions : 578.89 LCY/hour
Optimal number of scrapers per push dozer : NA Selected number of scrapers : 2 scraper(s)
Adjusted single scraper team (unit) hourly production : 578.89 LCY/hour
Adjusted multiple scraper team (fleet) hourly production : 578.89 LCY/hour

JOB TIME AND COST
Fleet size : 1 Team(s) Total job time : 7.32 Hours
Unit cost : $1.001 /LCY Total job cost : $4,240