2011-10-11_REVISION - P2011010

• Permit No: P2011010
• IBM Index Class Name: REVISION
• Doc Date: 10/11/2011
• Doc Name: Approval to Commence Prospecting ‎(MD-01)‎
• From: DRMS
• To: Rio Grande Silver, Inc.
• Type & Sequence: MD1
• Email Name: RCO
• Media Type: D
• Archive: No

PROJECT IDENTIFICATION
Task # : 013 State :Colorado Permit/job# :P- 2011 -010
Date : 10/11/2011 County :Mineral Abbreviation :none
User : RCO Site :Equity Exploration Project Filename :P010-013
Agency or organization name :DRMS
Permit or other job action :Modification MD -1
HOURLY EQUIPMENT COST
Cost Breakdown :
MATERIAL QUANTITIES
Initial
volume :
807
HOURLY PRODUCTION
Material consistency description :
Partly consolidated stockpile
JOB TIME AND COST
Fleet size :
Unit cost :
Task description :Additional pad grading and cover foundation)
CCY
Source of estimated swell factor :na
CIRCES Cost Estimating Software
BULLDOZER WORK
Basic machine : Cat D6R LGP - 6S (2003)
Blade type :Straight
Attachment no. 1 :ROPS Cab
Attachment no. 2 :NA
Ownership cost/hour :
Operating cost/hour :
Ripper op. cost/hour :
Operator cost/hour :
Total unit cost/hour :
Average push distance : 60 feet
Unadjusted hourly production : 409.6 LCY /hr
Average push gradient : 0.00 % (pos)
Average site altitude : 11,120 feet
Material weight : 3,300 Ibs /LCY
Weight description :
Decomposed rock - 75% Rock, 25% Earth
1 Dozer(s)
$0.870 /LCY
Swell
factor :
$29.89
$43.48
$0.00
$38.54
$111.91
Source of estimated volume :1 acre x 6 inch avg depth
Utilization %
NA
100
NA
NA
Horsepower : 185
Shift basis : 1 per day
Data source : (CRG)
Total fleet cost/hour : $111.91
Loose
1.215 volume : 981 LCY
Job Condition Correction Factors
Operator skill :
Material consistency :
Dozing method :
Visibility :
Job efficiency :
Spoil pile :
Push gradient :
Altitude :
Material weight :
Blade type :
Net correction :
Adjusted unit production : 128.58 LCY /hr
Adjusted fleet production : 128.58 LCY /hr
Total job time :
Total job cost : $853
Source
0.75 (avg.)
1.10 (Cat HB)
1.00 (gen.)
1.00 (avg.)
0.83 (lshift/day)
0.70 (fnd -mf)
1.00 (Cat HB)
0.94 (Cat HB)
0.70 (Cat HB)
1.00 (S /SU /U)
0.31
7.63 Hours