2010-04-06_REVISION - C1981022 ‎(3)‎

• Permit No: C1981022
• IBM Index Class Name: REVISION
• Doc Date: 4/6/2010
• Doc Name: Adequacy Review & Cost Estimate
• From: DRMS
• To: Oxbow Mining, LLC
• Type & Sequence: TR67
• Email Name: MPB
• Email Name: SB1
• Media Type: D
• Archive: No

CIRCES Cost Estimating Software
BULLDOZER WORK
PROJECT IDENTIFICATION
Task # : 243 State : Colorado Permit/job# : C-1981-022
Date : 04/06/2010 County :Delta Abbreviation :none
User : JRS Site :Elk Creek Mine Filename :C022-243
Agency or organization name : Colorado Division Of Reclamation, Mining And Safety
Permit or other job action : Technical Revision 67 _
Task description : Regrade Light Use Roads
HOURLY EQUIPMENT COST
Cost Breakdown :
MATERIAL QUANTITIES
Initial
volume : 4,300
Basic machine :Cat D9R - 9SU (2005) Horsepower : 4
0
5

Blade type : Semi-Universal .
_
_ _ _
--
Attachment no. 1 :ROPS Cab Shift basis : 1 per day
Attachment no. 2:3-shank ripper
Data source : (CRG)
Utilization %
Ownership costihour : $67.77 NA
Operating cost/hour: $95.29 ? v100
Ripper op. cost/hour : $0.00 0
Operator cost/hour: $38.54 NA
Total unit costihour : $201.60 Total fleet costihour : $201.60

CCY
Swell Loose
factor : 1.165 volume :
5,010 LCY
Source of estimated volume :Division Estimate
Source of estimated swell factor : CAT Handbook
HOURLY PRODUCTION Job Condition Correction Factors Source
Operator skill :
' 0.75 (avg-)
Average push distance : 100 feet Material consistency:
onsistency : 0.90 at HB)
(C
Unadjusted hourly production : 1,243.2 LCY/hr Dozing method : 1.00 _
(gen.)
Visibility: 1.00 (avg.)
Material consistency description : Job efficiency : 0.83 (ishift/day)
Compacted rill or embankment Spoil pile : 0.80 (fn_d-M
Push gradient : 0.90 (Cat HB)
Average push gradient : 5.00 % (pos) Altitude : 0.95 (Cat HB)
Average site altitude : 7,800 feet Material weight : 0.79 _
(Cat HB)
Blade type : 1.00 (SISUAU)
Material weight : 2,900 Ibs/LCY Net correction : 0.31
Weight description :
Decomposed rock - 50% Rock, 50% Earlh Adjusted unit production : 379.20 LCY/hr
Adjusted fleet production : 379.20 LCY/hr
JOB TIME AND COST
Fleet size : 1 Dozer(s) Total job time : 13.21 Hours
unit cost : $0.532 /LCY Total job cost : $2,663