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Permit Amen 6)-Climax Mine ! •
<br />CLIMAX MINE RECLAMATION COST ESTIMATE
<br />Financial Reporting Unit Rates
<br />Storke Complex
<br />Assumptions
<br />(1) Reconstruction of the Arkansas River through the Storke Yard is covered elsewhere.
<br />(2) Water treatment for seepage and drainage in the Storke area will be required indefinitely thereby warranting perpetual use of SW PPS & 5-Shaft.
<br />(3) Following extensive reclamation work in 2004 through 2007, there will still remain approx. 10 acres of "disturbed" areas requiring reclamation.
<br />(4) Revegetation work is covered elsewhere.
<br />Tasks
<br />(1) Minor grading of areas remaining from previous work in 2004 and 2005 - assume D6 dozer work on 10 acres @ 2 hrs/ac.
<br />(2) Haul biosolids from Robinson Staging Area and replacement on 10 acres at 4 inches thick = 5323 cy @ Haul Distance = 2.6 miles.
<br />(3) Ceresco OSF Reclamation (Regrading, Subsoil Cover, Topsoil=Biosolids) similar to McNulty OSF.
<br />(4) Ceresco OSF Seepage Collection System: 2600 feet collection system along toe (seepage barrier, gravel trench, perforated pipe); 4500 feet pipeline to convey seepage to ETDL (12"
<br /> HDPE).
<br />Timing
<br />2011+
<br />Total Costs
<br />$281,085
<br />Calculations
<br />
<br />Task/Area
<br />Quantity U i s
<br />Productivity Units
<br />Hits Read Cos Unit Total 'Eguipment
<br />Cost/Unit Labor Tota Cost/Unit
<br />l Labor Cost Materials &
<br />Total Material Cost Total Cost
<br /> Eauioment Cost Other
<br />(1) Minor Grading of Storke Disturbed Areas
<br />CAT D6 10 acres 2 hrs/ac 20 $103.24 $2,064.82 $33.81 $676.10 $2,740.92
<br />(2) Load Biosolids at Robinson
<br />926 Loader 5,323 cy 40.13 $46.88 $1,881.25 $30.40 $1,220.04 $3,101.29
<br />(2) Haul Biosolids from Robinson
<br />Generic Truck 5,323 cy 37.90 cy/hr 140.44 $104.50 $14,676.37 $30.02 $4,216.02 $18,892.40
<br />(2) Spread Biosolids at Storke
<br />CAT D6 5,323 cy 200 cy/hr 26.62 $103.24 $2,747.76 $33.81 $899.73 $3,647.49
<br />(3) Minor Grading of Ceresco OSF
<br />CAT 06 30 acres 2 hrs/ac 60 $296.50 $17,789.90 $33.81 $2,028.31 $19,818.21
<br />(3) Load Biosolids at Robinson
<br />926 Loader 16,133 cy 121.62 $46.88 $5,701.84 $30.40 $3,697.78 $9,399.62
<br />(3) Haul Biosolids from Robinson
<br />Generic Truck 16,133 cy 37.90 cy/hr 425.67 $104.50 $44,482.21 $30.02 $12,778.23 $57,260.44
<br />(3) Spread Biosolids at Ceresco OSF
<br />CAT D6 16,133 cy 200 cy/hr 80.67 $103.24 $8,328.11 $33.81 $2,726.95 $11,055.06
<br />(4) Excavate for Toe Drain Trench 5,000 cy $ 3.00 $15,000.00 $15,000.00
<br />(4) Drain Rock for Toe Drain 2,670 cy $ 26.00 $69,420.00 $69,420.00
<br />(4) Perforated Pipe for Toe Drain 4,500 lin ft $ 9.00 $40,500.00 $40,500.00
<br />(4) Separation geotextile for Toe Drain 9,000 sq yd $ 2.25 $20,250.00 $20,250.00
<br />(4) Toe Drain Collection Sump and Piping 1 each $ 10,000 $10,000.00 $10,000.00
<br /> Hrs Req'd Total Equipment Cost Total Labor Cost Total Material Cost Total Cost
<br />;TOTAL COSTS 915 $252,842 $28,243` 11 1 $0 $281,085
<br />Exhibit L Feb 2011
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