2009-10-01_REVISION - C1996083

• Permit No: C1996083
• IBM Index Class Name: REVISION
• Doc Date: 10/1/2009
• Doc Name: 2009 Midterm Reclamation Cost Estimate
• From: Jim Stark
• To: Joe Dudash
• Type & Sequence: MT3
• Email Name: JJD
• Media Type: D
• Archive: No

CIRCES Cost Estimating Software
BULLDOZER WORK
PROJECT IDENTIFICATION
Task #: 002 State :Colorado Permit/job# : C-96-083
Date : 0912812009 County : Delta Abbreviation :none
User : JRS Site : Bowie No. 2 Mine Filename : C083-002
Agency or organization name : Colorado Division Of Reclamation, Mining And Safety
Permit or other job action 2009 Midterm Review
Task description : Regrade D-Portal Bench
HOURLY EQUIPMENT COST
Basic machine : Cat D10R - 10SU (2005) Horsepower : 570
Blade type : Semi-Universal
Attachment no. 1 : ROPS Cab Shift basis : 1 per day
Attachment no. 2 :3-shank ripper
Cost Breakdown : Ownership cost/hour :
Operating cost/hour :
Ripper op. cost/hour :
Operator cost/hour :
Total unit cost/hour :
MATERIAL QUANTITIES
$92.20
$164.67
$0.00
$38.54
$295.41
Data source : (CRG)
Utilization %
NA
100
0
NA
Total fleet cost/hour : $1,181.65
Initial Swell Loose
volume : 260,593 CCY factor : 1.165 volume : 303,591 LCY
Source of estimated volume :Operator Estimate
Source of estimated swell factor :-CAT Handbook
HOURLY PRODUCTION Job Condition Correction Factors Source
Operator skill : 0.75 (a vg.) -
Average push distance : 100 feet Material consistency : 0.90 (Cat HB_)

Unadjusted hourly production : 1,718.9
LCY/hr
Dozing method :
1.00 _
(gen.)
Visibility: 1.00 (avg.)
Material consistency description : Job efficiency : 0.83 (1shift1day)
Compacted fill or embankment Spoil pile : 0.80 (fnd-rfJ
Push gradient : 0.79 (Cat HB_)
Average push gradient : 10.00 % (pos) Altitude : 1.00 (Cat HB)
Average site altitude : 6,900 feet Material weight : 0.79 (Cat HB)
Blade type : 1.00 (S/SU/U)
Material weight : 2,900 Ibs/LCY Net correction : 0.28
Weight description :
mposed rock - 50% Rock, 50% Earth
De
c
o Adjusted unit production : 480.56 LCY/hr
_
_
_ Adjusted fleet production : 1,922.23 LCY/hr
JOB TIME AND COST
Fleet size : 4 Dozer(s) Total job time : 157.94 Hours
Unit cost : $0.615 /LCY Total job cost : $186,627