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GENERAL55803
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Entry Properties
Last modified
8/24/2016 8:40:46 PM
Creation date
11/23/2007 10:49:03 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980001
IBM Index Class Name
General Documents
Doc Date
12/26/1991
Doc Name
EDNA MINE PN C-80-001 REQUEST FOR APPROVAL OF 1992 1996 PERMIT TERM LIABILITY AMOUNT & ITS PROPOSED
From
PITTSBURG & MIDWAY COAL MINING CO
To
MLRD
Permit Index Doc Type
GENERAL CORRESPONDENCE
Media Type
D
Archive
No
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Cycle Time <br />Loaded Haul ....... 1.5 minutes <br />Empty Return ...... 2.3 minutes <br />Fixed Time ....... 2,3, minutes <br />Total Cycle Time .... 6.1 minutes <br />Ideal Production =Cycle Time + Volume/Cycle <br />= 6.1 min/cycle + 25 yds3/cycle <br />= 4.1 yds3/min = 205 }•ds3/hr. <br />Production Factor = 0.925 (altitude). <br />Adjusted Production =Ideal Production x Production Factor <br />= 205 yds3/hr x 0.925 <br />= 189.4 yds3/hr. <br />Actual Production Rate =Volume Moved/Area + Actual Production Ra[e <br />Moffat = 1,480 yds3/acre + 189.4 yds3/hr <br />= 7.8 hrs/acre. <br />W. Ridge = 980 yds3/acre + 189.4 ,yds3/hr <br />= 5.2 hrs/acre. <br />b. Hourly Labor/Equipment Costs <br />Labor Equipment <br />3YflCC rental operational Total <br />637 D P-P $17.95 $131.13 $71.40 $220.48 <br />c. Unit Cost to Replace Topsoil = (Labor Rate + Equipment Rate) x Production Rate <br />Moffat = $220.48/hr x 7.8 hrs/acre <br />$1,726.36/acre. <br />W.Ridge =$220.48/hrx5.2hrs/acre <br />_ $1,144.29/acre. <br />Cos by Y~nr <br /> West Ridge Costs Moffat Costs <br />j1Y Year: (Reclamatio n x 7ni •os ) + (Reclamation x i s ) = Yearly Cos <br />1 184 acres $1,144.29/acre 279 acres $1,726.36/acre $692,204 <br />2 104 acres "" 224 acres "" $505,710 <br />3 104 acres "" 204 acres "" $471,183 <br />4 104 acres "" 204 acres "" $471,183 <br />5 104 acres "" 209 acres "" $479,815 <br />7 <br />December 12, 1991 <br />
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