2016-03-28_REVISION - C1996083

• Permit No: C1996083
• IBM Index Class Name: Revision
• Doc Date: 3/28/2016
• Doc Name: Reclamation Cost Estimate
• From: DRMS
• To: Bowie Resources
• Type & Sequence: SL1
• Email Name: JDM
• Email Name: DIH
• Media Type: D
• Archive: No

HOURLY PRODUCTION
Truck Capacity:
Truck Payload (weight) Basis:
Material weight: 2,900 Pounds/LCY
Description: Decomposed rock - 50% Rock, 50% Earth
Rated Payload: 122,520 Pounds
Payload Capacity: 42.25 LCY
Truck Bed (volume) Basis:
Struck Volume:
35.00
LCY
Heaped Volume:
46.50
LCY
Average Volume:
40.75
LCY
Adjusted Volume:
42.25
LCY
Final Truck Volume Based on Number of Loader Passes
Loading Tool Capacity
Rated Capacity:
9.200
Bucket Fill Factor:
0.875
Adjusted Capacity:
8.050
Job Condition Corrections:
(Cat HB)
Stockpile:
Truck
Altitude Adj:
1.000
Job Efficiency:
0.830
Net Correction:
0.830
Loading Tool Cycle Time:
Common ownership of trucks and loaders -
Excavators and Front Shovels:
(Cat HB)
40.25 LCY
Bucket Size Class: NA
LCY (heaped)
Loose material - 1" and over (85 -
LCY
0.875
Site Altitude (ft.): 6900 feet
Loader Source
1.000 (CAT HB)
0.830 (CAT HB)
0.830
Number of Loading Tool Passes Required to Fill 5 passes
Truck:
Machine Cycle Time vs. Job Condition Rating: NA
Selected Value within this Basic Rating: NA
Track Loaders — Material Description:
Cycle Time Elements (min.):
Load: NA Maneuver: NA Dump: 0.100
Wheel and Track Loaders - Unadjusted Basic Loader Cycle Time (load, dump, 0.575
maneuver):
minutes
Cycle Time Factors
Factor (min.)
Source
Material:
Mixed material 0.02
0.020
(Cat HB)
Stockpile:
Conveyor or dozer piled 10 ft. high or less
0.010
(Cat HB)
0.01
Truck Ownership:
Common ownership of trucks and loaders -
-0.040
(Cat HB)
0.04
Operation:
Constant operation -0.04
-0.040
(Cat HB)
Dump Target:
Nominal target 0.00
0.000
(Cat HB)
Net Cycle Time Adjustment: -0.050 minutes
Adjusted Loader Cycle Time: 0.525 minutes
Net Load Time per Truck: 2.200 minutes