2011-07-14_PERMIT FILE - P2010026

• Permit No: P2010026
• IBM Index Class Name: Permit File
• Doc Date: 7/14/2011
• Doc Name: Response to your review of 06/09/2011
• From: Shell International Exploration & Production
• To: DRMS
• Email Name: THM
• Media Type: D
• Archive: No

P- 2010 -026 bondcalc 01 a Pagel 1 of 17
Shell Frontier Oil & Gas Inc.
FINANCIAL WARRANTY CALCULATION
SCRAPER WORK
Site
East RD &D Pilot Project
Date July 12, 2011
Task no. 7
Task
Replace stockpiled soil material over disturbed areas (site + access road + pond)
Equipment
Base model:
Cat 623G
Type:
Single engine elevating
State: Colorado
County: Rio Blanco
Labor zone: 2
Hourly cost
Ownership: $64.15
Horsepower: 365
Operating:
$102.83
Utilization: 100% $102.83
Max. cap. (cy): 23.00
Operator: $24.82
Weight (UST): 41.35
Total: $191.81
Volume
19,683.00 CCY
Swell:
1.119 Final:
22,026.21 LCY
Material description: Earth - Loam
Derivation: Assume 12 inch replacement depth over disturbed areas (12.20 ac.)
Production
Hauling
capacity:
Rated payload:
55,200 LBS
Material weight:
2,100 LBS /LCY
Material description:
Payload capacity:
26.29 LCY
Earth - Loam
Struck volume:
18.00 LCY
Heaped volume:
23.00 LCY
Average volume:
20.50 LCY
Adjusted capacity:
20.50 LCY
Cycle time:
HAUL
RETURN
Distance:
700
700 feet
Grade resistance:
2.00%
-2.00% Road condition description for rolling resistance:
Rolling resistance:
8.00%
8.006/—.-- Soft, rutted dirt, no maintenance or water, 4" tire penetration
Total resistance:
10.00%
6.00
Max. attainable speed:
659
1,982 per Cat Handbook rimpull & retarder curves
Weight to power ratio:
377.81
226.58 Ibs /hp
Acceleration / deceleration factor:
0.977
0.680 per Church's Excavation Handbook
Load time *:
0.90
min. per Cat Handbook
Haul time * *:
1.09
min. * *includes acceleration / deceleration
adjustment
Maneuver & spread time *:
0.70
min.
Return time: **
0.52
min.
Total cycle time:
3.21
min. no
Unadjusted production:
383.58
LCY /hr per scraper * ** ** *(per scraper pair
on push -pull models)
Job condition correction factors:
Site altitude:
6,615
feet Altitude adjustment *:
1.000
Job eff iciency:
1 daytime shift per day (50 min. hour)
0.833
Net correction:
0.833
Adjusted production:
319.52
LCY /hr per scraper
Work team size:
2
Scraper(s) NOTE: Min. 2 scrapers required on push -pull models (add increments of 2)
Work team production:
639.04
LCY /hour
Job totals
Job time (hours):
34.47
Job unit cost ($ /LCY): $0.600
Job cost: $13,222
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