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 # : 005 State :Colorado Permit/job # : P -2010 -007
Date : 06/03/2011 County :Mineral Abbreviation :none
User : RCO Site :North Amethyst Project Filename : P007 -005
Agency or organization name :DRMS
Permit or other job action :Modification MD -3
Cost Breakdown :
MATERIAL QUANTITIES
Initial
volume :
Task description :Pull material onto access road for recontouring
HOURLY EQUIPMENT COST
302
Source of estimated swell factor :na
HOURLY PRODUCTION
Ownership cost/hour :
Operating cost/hour :
Operator cost/hour :
Total unit cost/hour :
LCY
Job Condition Correction Factors
Site altitude : 11,600 feet
JOB TIME AND COST
Fleet size :
Unit cost :
$0.484
CIRCES Cost Estimating Software
HYDRAULIC EXCAVATOR WORK
Machine description :Cat 320C
$26.97
$32.00
$38.72
$97.69
Utilization %
NA
100
NA
Swell
factor : NA
Source of estimated volume :930 LF road x 30 sfX -sect.
Excavator Cycle Time (load bucket, swing loaded, dump bucket, swing empty)
Basic job condition description : AVERAGE
Secondary job condition within basic description : AVERAGE
Cycle time value : 0.28 minutes
Bucket Capacity
Rated bucket capacity : 1.63 LCY (heaped) Bucket size class : medium
Bucket fill factor : 0.85 Hard, tough clay (80% - 90 %)
Adjusted bucket capacity : 1.39 LCY
Unadjusted hourly unit production :
Adjusted hourly unit production :
Adjusted hourly fleet production
1 excavator(s)
per LCY
Altitude adjustment :
Job efficiency adjustment :
Net job correction :
292.71
201.65
201.65
LCY /hour
LCY /hour
LCY /hour
Total job time :
Total job cost : $146
Horsepower : 138
Weight (MT) : 19.70
Shift basis : 1 per day
Data source : (CRG)
Total fleet cost/hour : $97.69
Loose
volume : 302 LCY
0.83
0.83
0.69
1.50 hours
Source
(Cat HB)
(1 shift/day)
multiplier