2017-05-02_PERMIT FILE - C1981012A

• Permit No: C1981012A
• IBM Index Class Name: Permit File
• Doc Date: 5/2/2017
• Section_Exhibit Name: Exhibit 28 Reclamation Bond Calculation
• Media Type: D
• Archive: Yes

Page 18 of 161
BULLDOZER RIPPING WORK
Task description: Rip Mine Entry Area Prior to Regrading
Site: New Elk Mine Permit Action: 2016 Midterm Review Permit/Job#: C1981012
PROJECT IDENTIFICATION
Task #: 623 State: Colorado
Date: 8/2/2016 County: Las Animas
User: JDM
Agency or organization name: DRMS
HOURLY EQUIPMENT COST
Basic Machine: Cat 139T - 9SU
Ripper Attachment: 3 -Shank Ripper
Abbreviation: None
Filename: CO 12-623
Horsepower: 405
Shift Basis: 1 per day
Data Source: (CRG)
Cost Breakdown:
NA
feet/second
Area:
Utilization %
Ownership Cost/Hour:
$97.48
NA
Operating Cost/Hour:
$103.60
100
Ripper Ownership Cost/Hour:
$10.74
NA
Ripper Operating Cost/Hour:
$6.60
100
Operator Cost/Hour:
$38.89
NA
Total Unit Cost/Hour:
$257.31
acres/hour
Total Fleet Cost/Hour:
$771.93
MATERIAL QUANTITIES
Alternate Methods:
Selected estimating method: Area
Seismic: NA Bank Volume:
Area: 17.86 acres Rip Depth (ft):
Source of estimated quantity: Map 11
HOURLY PRODUCTION
Seismic:
NA
2.00
BCY NA
Volume: 57,628 BCY or CCY
Seismic Velocity:
NA
feet/second
Area:
Average Ripping Depth:
4.05
mph
Average Ripping Width:
7.67
degrees
Average Ripping Length:
200.00
feet
Average Dozer Speed:
88.00
feet
Average Maneuver Time:
0.25
feet
Production per unit area:
0.838
acres/hour
Job Condition Correction Factors
Unadjusted Hourly Unit Production:
0.838
Acres/hr
Site Altitude:
7,500
feet
Altitude Adj:
1.00
(CAT HB)
Job Efficiency:
0.83
(1 shift/day)
Net Correction:
0.83
multiplier
Adjusted Hourly Unit Production:
0.70
Acres/hr
CIRCES Cost Estimating Software