PERMFILE51410

• Permit No: M2007010
• IBM Index Class Name: Permit File
• Doc Date: 3/23/2007
• Doc Name: Reclamation Cost Estimation
• From: DRMS
• To: Matt Carnahan
• Media Type: D
• Archive: No

Surface Blasting Work cont'tl Task # : 001 sheet 2 of 2
BLASTING MATERIALS QUANTITIES ~ -_ QUANTITY UNIT
Total quantity of stemming required 1.63 ~ cubic yards
Total quantity of explosives required 1,278 pounds
Total quantity of del. cord/fuse/wire required 2,871 /in. feet
Quantity of blasting caps used per blasthcle 1 cap(s)
Total quantity of blasting caps required 100 caps
Quantity of primers used per blasthole 1 primer(s)
Total quantity of primers required 100 primers
Quantify of delays used per blasthole 1 delay(s)
Total quantity of delays required 102 delays
HOURLY EQUIPMENT COST Shiftbasis : 1 per day Data source : (CRG data)
Drilling equipment -Drill :Atlas Copco LM100A/YD90
-Drill pad preparation :Cat 3458 L Series 11(2005)
Misc. drilling support equipment :+NA
Misc. explosives support equipment :~NA
Explosives delivery/prep. -Bulk truck :Water Tanker, 2,500 Gal.
- Cap truck: Water Tanker, 2;500
Cost Breakdown : Drilling
Equipment Drill Pad
Preparation Misc. Drill Misc. Expl.
Support Support Explosives Delivery
Bulk Truck Cap Truck
Import data filename : airtools excavate NA NA misctruk misctruk
Utilization -machine+att. no. 1 : 100 25 NA NA 25 25
-ripper or attachment no. 2 : NA NA NA NA NA NA
Equipment ownership $/hr : $12.98 $63.20 NA NA $7.50 $7.50
Machine+att. 1 operating $/hr : $20.85 $19.25 NA NA $3.66 $3.66
Ripper or att. 2 operating $/hr : $0.00 $0.00 NA NA $0.00 $0.00
Operator+additionallabor$/hr: $38.52 $32.96 NA NA $19.67 $19.67
Unit subtotals : $72.35 $115.41 $0.00 $0.00. $30.84 $30.84
Number of units : 1 1 0 0 1 1
Group subtotals : $72.35 $115.41 $0.00 $0.00 $30.84 $30.84
Total work team cost/hour : $249.45
MATERIALS COST
Description ~ Unit Unit Cost Quantity Total Cost
Blasting agent : Bulk ANFO nom. density pound $0.202 1,277.78 $258.11
Primers or boosters : Cast primer, 0.316 each $2.419 100.00 $241.90
Blasting caps : Non-electric cap, inst. each $3.230 100.00 $323.00
Det. cord, fuse or wire : Detonating cord, 10 gr./ft. linear foot $0.099 2,871.00 $284.23
Delays : MS connectors each $4.116 102.00 $419.83
Miscellaneous : Stemming, 1.5 in. gravel cu. yd. $23.00 7.63 $37.56
Drill bits' : bit life = 1,400.0 linear feet $244.00 1.43 $348.57
'bit life unit =linear foot, bit cost unit =each (per bit) Total materials cost : $1,913.21
DRILLING AND EXPLOSIVES PREPARATION TIME
Job Condition Correction Factors - Site altitude : 7,150 feet
Altitude adjustment : 0.95 (DMG est.)
Total drilling length : 2,000 linear feet Job efficiency factor : 0.67 (Ch. Exc. HB)
Unadjusted drilling rate : 112.00 feef/hour Adjusted drilling rate : 71.29 feef/hour
Drilling time : 28.06 hours Explosives prep, time : 18.37 hours

JOB TIME AND COST Total job time : 46.42 hours
Total unit cost : $4.988 per cu. yd. Total jab cost : $8,314