2008-08-11_PERMIT FILE - C1992080

• Permit No: C1992080
• IBM Index Class Name: Permit File
• Doc Date: 8/11/2008
• Doc Name: Cost Estimate
• Section_Exhibit Name: Appendix 5-7 Bonding Calculations
• Media Type: D
• Archive: No

CIRCES Cost Estimating Software
SCRAPER - ONLY WORK
PROJECT IDENTIFICATION
Agency or organization name: CDRMS
Task #: 37a State : C olorado
Date : 05/21/2008 County: La Plata
User: TAK Site: Carbon Junction Mine
Permit or other job action : RN -03
Task description Backfill Pond 1
XXXXXXXXX
HOURLY EQUIPMENT COST
Model : Cat 657E w /push -pull Shift basis : 1 per day
Cost Breakdown :
Distance (feet)
Job utilization %
Horsepower
1045
Ownership cost/hour
: $132.14
NA
Weight (UST)
: 80.07
Operating cost/hour
: $205.26
100
Cost data source
: (CRG)
Operator cost/hour
: $24.95
NA
15.0
5.0
Total unit cost/hour
: $ 362.35
Total fleet cost/hour :
$724.71
0.83 (1 shift/day)
Adjusted unit production :
MATERIAL QUANTITIES
.........::.:::::::::::::::::::::::::::::::::.......:............................................
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..........
Initial
Swell
Loose
: 0.83
— 2 times volume on push -pull models
volume: 39,930 BCy
factor
: 1.330 volume:
53,107
LCY
Source of quantity take -off
: Cost estimate
in TR -12
2 Scraper(s)
Total job time :
Source of estimated swell factor DRMS estimate
Hours
Unit cost :
$ 0.422 /LCY
Total job cost :
HOURLY PRODUCTION
....... ::............. .........
..........................................................................
...............................
Hauling Capacity :
Scraper Payload (weight) Basis :
Scraper Bowl (volume) Basis:
Material weight: 2,900
pounds /LCY
Struck volume :
32.00
LCY
Material description :
Heaped volume:
44.00
LCY
Decomposed rock - 50% Rock, 50% Earth
Average volume:
38.00
LCY
Rated payload : 104,000
pounds
Payload capacity: 35.86
LCY
Adjusted capacity :
35.86
LCY * **
Cycle Time (load + haul + spread + return) :
Loading time:
1.10
minutes'
Maneuver and spreading time :
0.60
minutes
Travel time:
loading time per pair on push -pull models
Route
Distance (feet)
Grade ( %)
Roll. res.( %)
Total res.( %)
I Velocity (fpm)
I Travel time (min.)
minutes
Haul :
200
-15.0
5.0
-10.0
1 1,651
1 0.18
I minutes **
Return :
200
15.0
5.0
20.0
1 1,002
1 0.20
I minutes **
travel time adjusted for acceleration and deceleration at load and dump points
velocities are max. attainable per total resistance shown, not average
Total cycle time
2.08
minutes
Job Condition Correction Factors
:
Site altitude (feet)
: 7,000
Adjusted Hourly Production ;
Altitude adjustment factor:
1.00 (Cat HB)
Unadjusted unit production :
2,068.56
LCY /Hour * **
Job efficiency factor:
0.83 (1 shift/day)
Adjusted unit production :
1,716.91
LCY /Hour
Adjusted fleet production :
1,716.91
LCY /Hour
Net job correction factor
: 0.83
— 2 times volume on push -pull models
:.::::::::::::::.....::::::::::::::::::::::::::::::::::::............:::::::::X;.................................::.:::..........................................................................
JOB TIME AND COST
...............................
Fleet size :
2 Scraper(s)
Total job time :
30.93
Hours
Unit cost :
$ 0.422 /LCY
Total job cost :
$22,416
Permit/job #: C -92 -080
Abbreviation : none
Filename :C080 -37a