2015-01-30_REVISION - C1996083

• Permit No: C1996083
• IBM Index Class Name: Revision
• Doc Date: 1/30/2015
• Doc Name: Reclamation Cost Estimate - MT4
• From: Bowie Resources
• To: DRMS
• Type & Sequence: MT4
• Email Name: SLB
• Media Type: D
• Archive: No

Bowie No. 2 Mine C1996083 Midterm Review No. 4 (MT -4) Page 105 of 558
Task description:
Site: Bowie No. 2 Mine
Seismic
Area
BULLDOZER RIPPING WORK
:y Bench
Permit Action: Midterm Review 4
PROJECT IDENTIFICATION
Task #: 060 State: Colorado
Date: 10/3/2014 County: Delta
User: SLB
Agency or organization name: DRMS
HOURLY EQUIPMENT COST
Basic Machine: Cat D10T - lOSU
Ripper Attachment: 3 -Shank Ripper
Permit/Job #: C 1996083
Abbreviation: None
Filename: C083 -060
Horsepower: 574
Shift Basis: 1 per day
Data Source: (CRG)
Cost Breakdown:
NA
feet /second
Area:
Utilization %
Ownership Cost/flour:
$131.86
Average Ripping Width:
NA
Operating Cost/Hour:
$184.48
50.00
100
Ripper Operating Cost/Hour:
$11.02
feet
100
Operator Cost/Hour:
$38.01
Production per unit area:
NA
Total Unit Cost/flour:
$365.36
Total Fleet Cost/Hour:
$1,461.44
0.730
MATERIAL QUANTITIES
Selected estimating
method: Area
Alternate Methods
NA Bank Volume: NA BCY NA
0.75 acres Rip Depth (ft)
Source of estimated quantity: Mal
HOURLY PRODUCTION
Seismic:
2.63
15 -2
Volume: 3,182 BCY or CCY
Seismic Velocity:
NA
feet /second
Area:
Average Ripping Depth:
2.88
mph
Average Ripping Width:
8.67
degrees
Average Ripping Length:
50.00
feet
Average Dozer Speed:
88.00
feet
Average Maneuver Time:
0.25
feet
Production per unit area:
0.730
acres /hour
Job Condition Correction Factors
Unadjusted Hourly Unit Production:
0.730
Acres /hr
Site Altitude:
6,800
feet
Altitude Adj:
1.00
(CAT HB)
Job Efficiency:
0.83
(1 shift /day)
Net Correction:
0.83
multiplier
Adjusted Hourly Unit Production:
0.61
Acres /hr
Adjusted Hourly Fleet Production:
2.42
Acres /hr
JOB TIME AND COST
Fleet size: 4 Grader(s)
Total job time:
0.31
Hours