2002-08-27_REVISION - M1983033

• Permit No: M1983033
• IBM Index Class Name: Revision
• Doc Date: 8/27/2002
• Doc Name: Amendment Approval
• From: DMG
• To: Albert Frei & Sons Inc.
• Type & Sequence: AM8
• Media Type: D
• Archive: No

Surface Blasting Work cont'd Task # : 001 ~ sheet 2 of 2
BLASTING MATERIALS QUANTITIES QUAMITY UNIT
Total quantity of stemming required ~ 1.64 ubic yards
Total quantity of explosives required 2,854 ounds
Total quantity of det. cord/fuse/wire required 436 /in. feet
Quantity of blasting caps used per blasthole 1 cap(s)
Total quantity of blasting caps required 9 caps
Quantity of primers used per blasthole 1 rimers)
Total quantity of primers required 9 rimers
Quantity of delays used per blasthole 1 delay(s)
Total quantity of delays required 10 delays
HOURLY EQUIPMENT COST
Shift basis
Data source : (user data)
Drilling equipment -Drill : REEDRILL SK25 (1996), 6-3/4 in.
- Drill pad preparation : NA
Misc. drilling support equipment : NA
Explosives delivery/prep. -Bulk truck :~FUeI Tanker, 6x4, 210 HP
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Cost Breakdown : Drilling -
Equipment Drill Pad
Preparation Misc. Drill Misc. Expl.
Support 'Support Explosives Delivery
Bulk Truck Cap Truck
Import data filename : drilling NA NA NA miscfruk misctruk
Utilization -machine+att. no. 1 : 100 NA NA NA 50 100
-ripper or attachment no. 2 : 0 NA NA NA 0 NA
Equipment ownership $/hr : $49.28 NA NA NA $8.53 $8.04
Machine+att. 1 operating $/hr : $63.40 NA NA NA $2.96 $12.36
Ripper or att. 2 operating $/hr : $0.00 NA NA NA $0.00 $0.00
Operator+additional labor $/hr : $31.03 NA NA NA $23.06 $19.25
Unit subtotals : $143.71 $0.00 $0.00 $0.00 $34.55 $39.65
Number of units : i 0 0 0 1 1
Group subtotals : $143.71 $0.00 $0.00 $0.00 $34.55 $39.65
Total work team cosUhour : $217.9f
MATERIALS COST
Description Unit Unit Cost Quantity Total Cost
Blasting agent : BuIkANFO nom. density pound $0.170 2,853.50 $485.10
Primers or boosters : luminized ANFO booster bag $8.518 9.00 $76.66
Blasting caps : Non-electric cap, delay each $2.460 9.00 $22.14
Det. cord, fuse or wire : Detonating cord, 45 gr./ft. linear foot $0.111 436.00 $48.40
Delays : MS connectors each $3.477 10.00 $34.77
Miscellaneous : none required NA $0.00 0.00 $0.00
Drill bits': bit life= 500.0 linear feet $1,620.00 0.79 $1,280.12
bit life unit =linear toot, bit cost unit =each (per bit)
DRILLING AND EXPLOSIVES PREPARATION TIME
Total materials cost : $1,947.19
Job Condition Correction Factors • Site altitude : 7,500 feet
Altitude adjustment: 0.95 (userdata)
Total drilling length : 395 linear feet Job efficiency factor : 0.67 (user)
Unadjusted drilling rate : 30.00 feeUhour Adjusted drilling rate : 19.09 feet/hour
Drilling time : 20.69 hours Explosives prep. time : 1.22 hours

JOB TIME AND COST Total job time : 21.91 hours
Total unit cost : $1.375 per cu. yd. Total job cost : $5,011