2016-06-08_GENERAL DOCUMENTS - C1981019

• Permit No: C1981019
• IBM Index Class Name: General Documents
• Doc Date: 6/8/2016
• Doc Name: Midterm Review
• From: Zach Trujillo
• To: Colowyo Coal Company
• Type & Sequence: MT7
• Permit Index Doc Type: Findings
• Email Name: ZTT
• Email Name: JRS
• Media Type: D
• Archive: No

Truck Bed (volume) Basis:
Struck Volume:
153.00
LCY
Heaped Volume:
192.00
LCY
Average Volume:
172.50
LCY
Adjusted Volume:
191.37
LCY
Final Truck Volume Based on Number of Loader Passes
Loading Tool Capacity
Truck Ownership:
Common ownership of trucks and loaders -
174.90 LCY
Bucket Size Class: NA
Rated Capacity: 53.000 LCY (heaped)
Bucket Fill Factor: 1.100 Other - rock/dirt mixtures (100-1
Adjusted Capacity: 58.300 LCY
Job Condition Corrections: Site Altitude (ft.): 7600 feet
1.100
Net Correction: 0.830 0.813
Loadins Tool Cycle Time: Number of Loading Tool Passes Required to Fill
Excavators and Front Shovels: 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
maneuver):
3 passes
— minutes
Cycle Time Factors
Truck
Loader
Source
Altitude Ad':
1.000
0.980
(CAT HB)
Job Efficiency:
0.830
0.830
(CAT HB)
Net Correction: 0.830 0.813
Loadins Tool Cycle Time: Number of Loading Tool Passes Required to Fill
Excavators and Front Shovels: 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
maneuver):
3 passes
— minutes
Cycle Time Factors
Adjusted for site altitude: 0.800 Minutes
Factor (min.)
Source
Material:
Material 6" and over diameter 0.03
0.030
(Cat HB)
Stockpile:
Conveyor or dozer piled 10 ft. high and up
0.000
(Cat HB)
0.00
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:
Adjusted Loader Cycle Time:
Net Load Time per Truck:
Truck Cvcle Time:
-0.050 minutes
0.675 minutes
1.450 minutes
Truck Exchange Time: 0.80 Minutes
Adjusted for site altitude: 0.800 Minutes
Truck Load Time: 1.450 Minutes
Adjusted for site altitude: 1.480 Minutes
Truck Maneuver and Dump 1.20 Minutes
Adjusted for site altitude: 1.200 Minutes
Time:
Truck Travel (Haul & Return) Time: Road Condition: Firm. smooth. rolling. dirt/It. surfaced. watered
maintained 3.0