PERMFILE59403

• Permit No: C1994082
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: MINE AREA WORKSHEETS
• Section_Exhibit Name: TAB 25 ATTACHMENT 25-3
• Media Type: D
• Archive: No

Mine Area Yoest - Vad9e Pit
Project Highwall Reduction
Task Drill 8 Shoot Highwall
YOR KSHEET N0. YA -4
OTHER RELLAMATIOH ACTIVITY COSTS
Total No. Holes = 3600 ' = 133 Rows x b roles/Row 798 Holes
Total Feet of Drilling
102 ft/row x 133 rows
Avg. Drilling Rete
Time = 13.566 ft.
2 ft/min x 60 m
27'
Required
= 13,566 .f t.
= 2 ft/nii n.
= 113 hrs.
in/hr
Cost Estimate Laloulations:
Drilling Cost = (113 hr. x 230.37/hr.)
= 526,032
1.7 bits 8 51500/bit (2,550
Total Amount of Exo(osives
915 lbs/row x 133 rows = 121,695 lbs.
Explosives: 50.15/l b. x 121,695 lb. = f18,255
TOTAL = 246.837

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25-3-4
Revised 03/01/95