2018-01-11_REVISION - C1981019

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 1/11/2018
• Doc Name: Adequacy Review - Preliminary
• From: DRMS
• To: Colowyo Coal Company
• Type & Sequence: RN7
• Email Name: ZTT
• Media Type: D
• Archive: No

Bulldozer Worksheet Cont'd Task # 019 Pagel of 2
BULLDOZER WORK
Task description: Regrade ditch D1 Upper (00-57+74)
Site: Colowyo Coal Mine Permit Action: 13C Permit/Job#: C1981019
PROJECT IDENTIFICATION
Task #: 019 State: Colorado
Date: 3115/2017+ County: Moffat
User: ZTT
Agency or organization name: DRMS
HOURLY EQUIPMENT COST
Basic Machine:
Cat 138T - 8SU
Horsepower:
310
Blade Type:
Semi -Universal
Attachment:
NA
Shift Basis:
1 per day
Data Source:
(CRG)
Cost Breakdown:
Ownership Cost/Hour:
Operating Cost/Hour:
Ripper own. Cost/Hour:
Ripper op. Cost/Hour:
Operator Cost/Hour:
Total unit Cost/Hour:
Total Fleet Cost/Hour:
Utilization %
$83.81
NA
$66.17
100
$0.00
NA
$0.00
0
$41.85
NA
$191.83
$191.83__._....._........_ .............._. _. _.
Abbreviation: None
Filename: C019-019
MATERIAL QUANTITIES
Initial Volume:
6,634
Swell factor:
1.000
Loose volume:
6,634 LCY
Source of estimated volume: Exhibit 7-23B Table 1, Ex. 7, Item 23 Fig. B-1
Source of estimated swell factor: Cat Handbook
HOURLY PRODUCTION
Average push distance:
Unadjusted hourly production:
50 feet
1,400.0 LCY/hr
Materials consistency description: Compacted fill or embankment 0.
Average push gradient: 0%
Average site altitude: 7,500 feet
Material weight: 2,650 lbs/LCY v
Weight description: Decomposed rock - 25% Rock, 75% Earth
Job Condition Correction Factor Source
Operator Skill: 0.750 (AVG.)
Material consistency: 0.900 CAT HB
Dozing method: 1.000 GEN.
Visibility: 0.800 POOR)