2011-06-15_REVISION - P2010015

• Permit No: P2010015
• IBM Index Class Name: REVISION
• Doc Date: 6/15/2011
• Doc Name: Approval letter for MD-01
• From: DRMS
• To: Rio Grande Silver, Inc.
• Type & Sequence: MD1
• Email Name: RCO
• Media Type: D
• Archive: No

PROJECT IDENTIFICATION
Task #:
Date :
User:
007
06/03/2011
RCO
Agency or organization name :DRMS
Permit or other job action :Modification MD -3
HOURLY EQUIPMENT COST
MATERIAL QUANTITIES
Alternate methods -
Seismic : NA
Area :
Task description :Rip compaction on roads and pads
HOURLY PRODUCTION
Cost Breakdown : Ownership cost/hour :
Dozer operating cost/hour :
Ripper operating cost/hour :
Operator cost/hour :
Total unit cost/hour :
1.35
NA Load factor :
acres Rip depth (ft) :
Source of estimated quantity : NOl
Source of estimated load factor :NA
Alternate methods -
Seismic : Seismic velocity :
Unadjusted production :
Area : Avg. ripping depth :
Average ripping width :
Average ripping length :
Average dozer speed :
Average maneuver time :
Production per unit area :
Unadjusted production :
JOB TIME AND COST
Fleet size :
Unit cost :
CIRCES Cost Estimating Software
BULLDOZER RIPPING WORK
State : Colorado
County :Mineral
Site :North Amethyst Project
Basic machine
Blade type
Attachment no. 1
Attachment no. 2
NA feet/second
NA cu. yds. /hour
1.00
5.08
200.00
88.00
0.25
0.555
894.97
1
$0.116
feet/pass
feet/pass
feet/pass
feet/minute
minutes /pass
acres /hour
cu. yds. /hour
dozer(s)
per cu. yd.
:Cat D5G LGP - 5P
:Power Angle Tilt
: ROPS Cab
:3-shank ripper
$17.85
$24.13
$1.93
$38.54
$82.45
Permit/job # : P- 2010 -007
Abbreviation :none
Filename :P007-007
Utilization %
NA
100
100
NA
Selected estimating method : Area
NA Bank volume :
1.00 Volume :
Job Condition Correction Factors -
Unadjusted production
per selected method : 894.97 cu. yds. /hour
Site altitude :
Altitude adjustment :
Job efficiency factor :
Net job correction :
Total job time :
Total job cost :
Horsepower: 90
Shift basis : 1 per day
Data source : (CRG)
Total fleet cost/hour :
$82.45
NA BCY
2,178 BCY or CCY
11,600 feet
0.96 (Cat HB)
0.83 (1 shift/day)
0.80 multiplier
Adjusted unit production : 713.12 cu. yds. /hour
Adjusted fleet production :
713.12 cu. yds. /hour
3.05 hours
$252