fort knox attachment 1

7/30/2019 Fort Knox Attachment 1

1/18

Detailed Reclamation and Closure/Closeout Bond Cost Estimate - Capital CostsFort Knox Mine Reclamation Plan

Line Labor E ui ment Materials Total Cost Unit No. Units Unit Cost Total Cost Unit No. Units Unit Cost Total

1 Mine Waste Pile Reclamation1a Yellow Pup Dump

Flat1a1 Contour $24,462 $60,018 $84,480 ac 80 $1,056 $84,480 ac 80 $1,0561a2 Rip1a3 Cover 1a4 Growth Medium

Sloped1a5 Contour $12,213 $65,890 $78,103 ac 40 $1,953 $78,103 ac 40 $1,9531a6 Rip1a7 Cover 1a8 Growth Medium

Earthwork/Recontouring Subtotal $36,675 $125,908 $0 $162,583 ac 120 $1,355 $162,583 ac 120 $1,355Flat

1a9 Blade1a10 Seeding (seed, equipment, labor) $4,290 $8,875 $13,165 ac 80 $165 $13,165 ac 80 $165

Sloped1a11 Blade1a12 Seeding (seed + equipment + labor) $2,306 $4,431 $6,737 ac 40 $168 $6,737 ac 40 $168

Revegetation/Stabilization Subtotal $0 $6,596 $13,306 $19,902 ac 120 $166 $19,902 ac 120 $166

Yellow Pup Dump Subtotal $36,675 $132,504 $13,306 $182,485 ac 120 $1,521 $182,485 ac 120 $1,521

1b Barnes Creek DumpFlat

1b1 Contour $48,297 $144,716 $193,013 ac 108 $1,781 $193,013 ac 108 $1,7811b2 Rip1b3 Cover 1b4 Growth Medium

Sloped1b5 Contour $27,641 $162,407 $190,049 ac 62 $3,060 $190,049 ac 62 $3,0601b6 Rip1b7 Cover 1b8 Growth Medium


1b9 Blade1b10 Seeding (seed, equipment, labor) $5,793 $12,011 $17,805 ac 108 $164 $17,805 ac 108 $164

Sloped1b11 Blade1b12 Seeding (seed + equipment + labor) $3,626 $6,874 $10,500 ac 62 $169 $10,500 ac 62 $169

Revegetation/Stabilization Subtotal $0 $9,419 $18,886 $28,305 ac 341 $83 $28,305 ac 341 $83Barnes Creek Dump Subtotal $75,938 $316,542 $18,886 $411,366 ac 171 $2,413 $411,366 ac 171 $2,413

1c Lowgrade StockpileFlat

1c1 Contour $16,920 $52,177 $69,097 ac 38 $1,814 $69,097 ac 38 $1,8141c2 Rip1c3 Cover 1c4 Growth Medium

Sloped1c5 Contour $10,459 $58,555 $69,014 ac 24 $2,937 $69,014 ac 24 $2,9371c6 Rip1c7 Cover 1c8 Growth Medium


1c9 Blade1c10 Seeding (seed, equipment, labor) $2,089 $4,220 $6,309 ac 38 $166 $6,309 ac 38 $166

Sloped1c11 Blade1c12 Seeding (seed + equipment + labor) $1,307 $2,608 $3,916 ac 24 $167 $3,916 ac 24 $167

Revegetation/Stabilization Subtotal $0 $3,396 $6,829 $10,224 ac 62 $166 $10,224 ac 62 $166Lowgrade Stockpile Subtotal $27,379 $114,128 $6,829 $148,335 ac 62 $2,408 $148,335 ac 62 $2,408

1d Install additional stormwater controls1e Install additional groundwater controls

Subtotal Waste Rock Area Reclamation $139,992 $563,174 $39,020 $742,186 ac 352 $2,108 $742,186 ac 352 $2,108

2 Borrow Area Reclamation2a Borrow # 12

Flat2a1 Contour $7,995 $27,724 $35,719 ac 31 $1,152 $35,719 ac 31 $1,1522a2 Rip2a3 Cover 2a4 Growth Medium

Sloped2a5 Contour 2a6 Rip2a7 Cover 2a8 Growth Medium


2a9 Blade2a10 Seeding (seed, equipment, labor) $1,662 $3,343 $5,006 ac 31 $161 $5,006 ac 31 $161

Sloped2a11 Blade2a12 Seeding (seed + equipment + labor)

Revegetation/Stabilization Subtotal $0 $1,662 $3,343 $5,006 ac 31 $161 $5,006 ac 31 $161Borrow #12 Subtotal $7,995 $29,386 $3,343 $40,725 ac 31 $1,314 $40,725 ac 31 $1,314

TasksFort Knox Mine Reclamation Plan April 2001 CSP 2 2003 Estimate -

CSP 2


2/18


Line Labor E ui ment Materials Total Cost Unit No. Units Unit Cost Total Cost Unit No. Units Unit Cost TotalTasksFort Knox Mine Reclamation Plan April 2001 CSP 2 2003 Estimate -

2b Laydown YardFlat

2b1 Contour $5,614 $17,141 $22,755 ac 25 $910 $22,755 ac 25 $9102b2 Rip2b3 Cover 2b4 Growth Medium

Sloped2b5 Contour 2b6 Rip2b7 Cover 2b8 Growth Medium

Earthwork/Recontouring Subtotal $5,614 $17,141 $0 $22,755 ac 25 $910 $22,755 ac 25 $910Flat

2b9 Blade2b10 Seeding (seed, equipment, labor) $1,341 $2,696 $4,037 ac 25 $161 $4,037 ac 25 $161

Sloped2b11 Blade2b12 Seeding (seed + equipment + labor)

Revegetation/Stabilization Subtotal $0 $1,341 $2,696 $4,037 ac 25 $161 $4,037 ac 25 $161Laydown Yard Subtotal $5,614 $18,481 $2,696 $26,791 ac 25 $1,072 $26,791 ac 25 $1,072

2c Aggregate Crusher Flat


Sloped2c5 Contour 2c6 Rip2c7 Cover 2c8 Growth Medium


2c9 Blade2c10 Seeding (seed, equipment, labor) $563 $1,132 $1,695 ac 11 $161 $1,695 ac 11 $161

Sloped2c11 Blade2c12 Seeding (seed + equipment + labor)

Revegetation/Stabilization Subtotal $0 $563 $1,132 $1,695 ac 11 $161 $1,695 ac 11 $161 Aggregate Crusher Subtotal $2,708 $9,955 $1,132 $13,796 ac 11 $1,314 $13,796 ac 11 $1,314

2d Borrow # 5Flat

2d1 Contour $22,664 $92,932 $115,596 ac 65 $1,778 $115,596 ac 65 $1,7782d2 Rip2d3 Cover 2d4 Growth Medium

Sloped2d5 Contour

2d6 Rip2d7 Cover 2d8 Growth Medium


2d9 Blade2d10 Seeding (seed, equipment, labor) $3,485 $7,010 $10,495 ac 65 $161 $10,495 ac 65 $161

Sloped2d11 Blade2d12 Seeding (seed + equipment + labor)

Revegetation/Stabilization Subtotal $0 $3,485 $7,010 $10,495 ac 65 $161 $10,495 ac 65 $161Borrow # 5 Subtotal $22,664 $96,417 $7,010 $126,091 ac 65 $1,940 $126,091 ac 65 $1,940

2e Borrow MB-Pit 1 & Scenic OverlookFlat

2e1 Contour $0 $0 $0 ac 0 $0 ac 02e2 Rip2e3 Cover 2e4 Growth Medium

Sloped2e5 Contour 2e6 Rip2e7 Cover 2e8 Growth Medium

Earthwork/Recontouring Subtotal $0 $0 $0 $0 ac 0 $0 ac 0Flat

2e9 Blade2e10 Seeding (seed, equipment, labor) $0 $0 $0 ac 0 $0 ac 0

Sloped2e11 Blade2e12 Seeding (seed + equipment + labor)

Revegetation/Stabilization Subtotal $0 $0 $0 $0 ac 0 $0 ac 0Borrow MB-Pit 1 & Scenic Overlook Subtotal $0 $0 $0 $0 ac 0 $0 ac 0

CSP 2


3/18



2f Borrow MB-Pit 2Flat $0

2f1 Contour $0 $0 ac 0 $0 ac 02f2 Rip2f3 Cover 2f4 Growth Medium

Sloped2f5 Contour 2f6 Rip2f7 Cover 2f8 Growth Medium


2f9 Blade2f10 Seeding (seed, equipment, labor) $0 $0 $0 ac 0 $0 ac 0

Sloped2f11 Blade2f12 Seeding (seed + equipment + labor)

Revegetation/Stabilization Subtotal $0 $0 $0 $0 ac 0 $0 ac 0Borrow MB-Pit 2 Subtotal $0 $0 $0 $0 ac 0 $0 ac 0

2g Borrow # 3-4Flat

2g1 Contour $10,190 $33,781 $43,971 ac 42 $1,047 $43,971 ac 42 $1,0472g2 Rip2g3 Cover 2g4 Growth Medium

Sloped2g5 Contour $02g6 Rip2g7 Cover 2g8 Growth Medium


2g9 Blade2g10 Seeding (seed, equipment, labor) $2,252 $4,530 $6,782 ac 42 $161 $6,782 ac 42 $161

Sloped2g11 Blade2g12 Seeding (seed + equipment + labor)

Revegetation/Stabilization Subtotal $0 $2,252 $4,530 $6,782 ac 42 $161 $6,782 ac 42 $161Borrow # 3-4 Subtotal $10,190 $36,033 $4,530 $50,753 ac 42 $1,208 $50,753 ac 42 $1,208

2h Borrow # 11Flat

2h1 Contour $0 $0 $0 ac 0 $0 ac 02h2 Rip2h3 Cover 2h4 Growth Medium

Sloped2h5 Contour $0

2h6 Rip2h7 Cover 2h8 Growth Medium


2h9 Blade2h10 Seeding (seed, equipment, labor) $0 $0 $0 ac 0 $0 ac 0

Sloped2h11 Blade2h12 Seeding (seed + equipment + labor)

Revegetation/Stabilization Subtotal $0 $0 $0 $0 ac 0 $0 ac 0Borrow # 11 Subtotal $0 $0 $0 $0 ac 0 $0 ac 0

2i Borrow # 2Flat

2i1 Contour $1,478 $3,705 $5,183 ac 8 $648 $5,183 ac 8 $6482i2 Rip2i3 Cover 2i4 Growth Medium

Sloped2i5 Contour 2i6 Rip2i7 Cover 2i8 Growth Medium


2i9 Blade2i10 Seeding (seed, equipment, labor) $429 $863 $1,292 ac 8 $161 $1,292 ac 8 $161

Sloped2i11 Blade2i12 Seeding (seed + equipment + labor)

Revegetation/Stabilization Subtotal $0 $429 $863 $1,292 ac 8 $161 $1,292 ac 8 $161Borrow # 2 Subtotal $1,478 $4,134 $863 $6,475 ac 8 $809 $6,475 ac 8 $809

CSP 2


4/18


5/18



4b Dismantling and equipment removal4b1 Removal and/or Demolition $21,209 $63,357 $84,566 sf 154882 $0.55 $84,566 sf 154882 $0.55

BuildingsFoundation

Flat4b2 Contour $2,676 $14,393 $17,069 sf 154882 $0.11 $17,069 sf 154882 $0.114b3 Rip4b4 Cover 4b5 Growth Medium


Earthwork/Recontouring Subtotal $2,676 $14,393 $0 $17,069 sf 154,882 $0.11 $17,069 sf 154,882 $0.11Flat

4b10 Blade4b11 Seeding (seed, equipment, labor) $143 $191 $384 $718 sf 154882 $0.005 $718 sf 154882 $0.005

Sloped4b12 Blade4b13 Seeding (seed + equipment + labor)

Revegetation/Stabilization Subtotal $143 $191 $384 $718 sf 154,882 $0.005 $718 sf 154,882 $0.0054b14 Clean-up Trash and Debris $0 $0

Dismantling and equipment removal Subtotal $24,028 $77,941 $384 $102,353 sf 154,882 $0.66 $102,353 sf 154,882 $0.66

4c Miscellaneous Sites - MillsiteFlat




4c9 Blade4c10 Seeding (seed, equipment, labor) $2,009 $2,681 $5,393 $10,082 ac 50 $202 $10,082 ac 50 $202


Revegetation/Stabilization Subtotal $2,009 $2,681 $5,393 $10,082 ac 50 $202 $10,082 ac 50 $202Miscellaneous Sites - Millsite Subtotal $12,895 $47,397 $5,393 $65,684 ac 50 $1,314 $65,684 ac 50 $1,314

4d Miscellaneous Sites - Conveyor CrossingFlat

4d1 Contour $5,075 $20,847 $25,922 ac 23 $1,112 $25,922 ac 23 $1,1124d2 Rip

4d3 Cover 4d4 Growth Medium

Sloped4d5 Contour 4d6 Rip4d7 Cover 4d8 Growth Medium


4d9 Blade4d10 Seeding (seed, equipment, labor) $936 $1,250 $2,514 $4,700 ac 23 $202 $4,700 ac 23 $202


Revegetation/Stabilization Subtotal $936 $1,250 $2,514 $4,700 ac 23 $202 $4,700 ac 23 $202Miscellaneous Sites - Conveyor Crossing Subtotal $6,011 $22,097 $2,514 $30,622 ac 23 $1,314 $30,622 ac 23 $1,314

4e Miscellaneous Sites - Crusher StationFlat

4e1 Contour $3,266 $13,415 $16,681 ac 15 $1,112 $16,681 ac 15 $1,1124e2 Rip4e3 Cover 4e4 Growth Medium



4e9 Blade4e10 Seeding (seed, equipment, labor) $603 $804 $1,618 $3,025 ac 15 $202 $3,025 ac 15 $202


Revegetation/Stabilization Subtotal $603 $804 $1,618 $3,025 ac 15 $202 $3,025 ac 15 $202Miscellaneous Sites - Crusher Station Subtotal $3,868 $14,219 $1,618 $19,705 ac 15 $1,314 $19,705 ac 15 $1,314

CSP 2


6/18



4f Miscellaneous Sites - Pit Diversion DitchesFlat

4f1 Contour $5,322 $12,680 $18,002 ac 48 $375 $18,002 ac 48 $3754f2 Rip4f3 Cover 4f4 Growth Medium



4f9 Blade4f10 Seeding (seed, equipment, labor) $1,928 $2,574 $5,177 $9,679 ac 48 $202 $9,679 ac 48 $202


Revegetation/Stabilization Subtotal $1,928 $2,574 $5,177 $9,679 ac 48 $202 $9,679 ac 48 $202Miscellaneous Sites - Pit Diversion Ditches Subtotal $7,250 $15,254 $5,177 $27,681 ac 48 $577 $27,681 ac 48 $577

4g Miscellaneous Sites - WetlandsFlat

4g1 Contour $7,428 $17,700 $25,128 ac 67 $375 $25,128 ac 67 $3754g2 Rip4g3 Cover 4g4 Growth Medium

Sloped4g5 Contour 4g6 Rip4g7 Cover 5g8 Growth Medium


4g9 Blade4g10 Seeding (seed, equipment, labor) $2,691 $3,593 $7,226 $13,510 ac 67 $13,510 ac 67


Revegetation/Stabilization Subtotal $2,691 $3,593 $7,226 $13,510 ac 67 $202 $13,510 ac 67 $202Miscellaneous Sites - Wetlands Subtotal $10,120 $21,292 $7,226 $38,638 ac 67 $577 $38,638 ac 67 $577

4h Install stormwater controlsSubtotal Facilities, Roads, Borrow Areas and Other $90,202 $259,193 $38,704 $388,098 ac 355 $1,092 $388,098 ac 355 $1,092

5 Miscellaneous5a Detoxification/Disposal of Wastes

5b Public Safety

Subtotal Miscellaneous $0 $0

6 Water Treatment Capture, Pump, Treatment and Discharge6a Interceptor wells6b Collection and distribution6c Degritting/equilization ponds6d Water treatment plant6e Sludge disposal faci lities6f Effluent disposal faci li ties

Subtotal Water Treatment Capture, Pump, Treatment and Discharge $0 $0

Total Tasks 1 thru 6 $316,429 $1,104,610 $116,261 $1,537,299 ac 1,065 $1,444 $1,537,299 ac 1,065 $1,444

7 Indirect Costs

7a Contingency 5% $15,821 $55,230 $5,813 $76,865 $76,865 5%7b Mobilization and demobilization 5% $15,821 $55,230 $5,813 $76,865 $76,865 5%7c Engineering redesign 3%7d Engineering, procurement, construction management 5%7e Contractor Overhead 15%7f Contractor Profit 10% $31,643 $110,461 $11,626 $153,730 $153,730 10%7g Agency Administration 5% $15,821 $55,230 $5,813 $76,865 $76,865 5%7h Inflation 8% $25,314 $88,369 $9,301 $122,984 $122,984 3%

Sub-Total Indirect Costs $507,309 33% $507,309 51%

Total Capital Cost $316,429 $1,104,610 $116,261 $2,044,608 ac 1,065 $1,920 $2,044,608 ac 1,065 $2,180

Total Cost $2,105,383 ac 1,065 $1,977 $2,105,383 ac 1,065 $2,24

CSP 2


7/18



SUMMARY - Fort Knox Mine Reclamation Plan

Item1 Mine Waste Pile ReclamationYellow Pup Dump $48,778 $176,230 $17,697 $242,705 ac 120 $2,023 $242,705 ac 120 $2,296Barnes Creek Dump $100,998 $421,001 $25,118 $547,117 ac 171 $3,209 $547,117 ac 171 $3,643Lowgrade Stockpile $36,414 $151,790 $9,082 $197,286 ac 62 $3,203 $197,286 ac 62 $3,636Install additional stormwater controls $0 $0 $0 $0 $0Install additional groundwater controls $0 $0 $0 $0 $0

Subtotal Waste Rock Area Reclamation $186,189 $749,021 $51,897 $987,107 ac 352 $2,803 $987,107 ac 352 $3,183Item 2 Borrow Area Reclamation

Borrow # 12 $10,633 $39,084 $4,447 $54,164 ac 31 $1,747 $54,164 ac 31 $1,984Laydown Yard $7,467 $24,580 $3,586 $35,633 ac 25 $1,425 $35,633 ac 25 $1,618

Aggregate Crusher $3,602 $13,240 $1,506 $18,348 ac 11 $1,747 $18,348 ac 11 $1,984Borrow # 5 $30,143 $128,235 $9,324 $167,702 ac 65 $2,580 $167,702 ac 65 $2,929Borrow MB-Pit 1 & Scenic Overlook $0 $0 $0 $0 $0Borrow MB-Pit 2 $0 $0 $0 $0 $0Borrow # 3-4 $13,553 $47,924 $6,024 $67,501 ac 42 $1,607 $67,501 ac 42 $1,825Borrow # 11 $0 $0 $0 $0 $0Borrow # 2 $1,966 $5,499 $1,148 $8,612 ac 8 $1,076 $8,612 ac 8 $1,222Solo Creek / Tailing Dam $28,928 $60,864 $15,348 $105,139 ac 107 $983 $105,139 ac 107 $1,116

Borrow # 14 $10,976 $40,345 $4,590 $55,911 ac 32 $1,747 $55,911 ac 32 $1,984Subtotal Borrow Area Reclamation $107,267 $359,770 $45,972 $513,010 ac 321 $1,601 $513,010 ac 321 $1,817

Item 3 Open Pit Reclamation $7,425 $15,613 $5,281 $28,320 ac $37 $765 $28,320 ac $37 $869Item 4 Facilities, Roads,and Other

Haul Roads $34,620 $81,119 $21,803 $137,542 ac 152 $905 $137,542 ac 152 $1,027Dismantling and equipment removal $31,957 $103,662 $511 $136,129 sf 154882 $1 $136,129 sf 154882 $1Miscellaneous Sites - Millsite $17,150 $63,039 $7,172 $87,360 ac 50 $1,747 $87,360 ac 50 $1,984Miscellaneous Sites - Conveyor Crossing $7,995 $29,389 $3,344 $40,727 ac 23 $1,747 $40,727 ac 23 $1,984Miscellaneous Sites - Crusher Station $5,145 $18,912 $2,152 $26,208 ac 15 $1,747 $26,208 ac 15 $1,984Miscellaneous Sites - Pit Diversion Ditches $9,642 $20,288 $6,885 $36,815 ac 48 $767 $36,815 ac 48 $871Miscellaneous Sites - Wetlands $13,459 $28,319 $9,611 $51,388 ac 67 $767 $51,388 ac 67 $871Install stormwater controls $0 $0 $0 $0 $0

Subtotal Facilities, Roads, Borrow Areas and Other $119,969 $344,726 $51,476 $516,171 ac 355 $1,453 $516,171 ac 355 $1,649Item 5 Miscellaneous

Detoxification/Disposal of Wastes $0 $0 $0 $0 $0Public Safety $0 $0 $0 $0 $0

Subtotal Miscellaneous $0 $0 $0 $0 $0Item 6 Water Treatment Capture, Pump, Treatment and Discharge $0 $0 $0 $0 $0

Total Capital Reclamation Cost $2,044,608 ac 1065 6,622$ 2,044,608$ ac 1065 7,51$

CSP 2


8/18


Lineduplicate Ft Knox Rec. Plancaptial and operating costs,changes to indirect costs asnoted

assess and change reclamationtasks and unit costs as noted,indirect costs from CSP2 scenario1

same assumpitons scenario 2 wi th 50 treatment

1 Mine Waste Pile Reclamation1a Yellow Pup Dump

Flatbased on Dumps cost estimation sheet;66.7% of labor on flat slopes

1a1 Contour based on Dumps cost estimation sheet;Yellow Pup flat areas

12' growth media to ensureadequate coverage; assume 1/2

contour cost for surface work and1/2 for cover work therefore

average unit cost for W aste RockReclamation increased by 50%

1a2 Rip1a3 Cover 1a4 Growth Medium

Sloped

based on Dumps cost estimationworksheet; 33.3% of labor on slopedsurfaces

1a5 Contour based on Dumps cost estimation sheet;Yellow Pup sloped areas




1a6 Rip1a7 Cover 1a8 Growth Medium

Earthwork/Recontouring SubtotalFlat

1a9 Blade

1a10 Seeding (seed, equipment, labor)based on Dumps cost estimation sheet;material cost is 34.1% of total materials

unit cost based on MDEQestimation for flat surfaces

Sloped1a11 Blade

1a12 Seeding (seed + equipment + labor)based on Dumps cost estimation sheet;material cost is 34.1% of total materials

unit cost based on MDEQestimation for sloped surfaces

Revegetation/Stabilization SubtotalYellow Pup Dump Subtotal

1b Barnes Creek Dump

Flat

based on Dumps cost estimationworksheet; 63.6% of labor on flatsurfaces; 73.5% of Barnes Cr +

Lowgrade area

1b1 Contour based on Dumps cost estimation sheet;73.5% of Barnes Cr/Lowgrade flat areas




1b2 Rip1b3 Cover 1b4 Growth Medium

Sloped

based on Dumps cost estimationworksheet; 36.4% of labor on slopedsurfaces; 73.5% of Barnes Cr +Lowgrade area

1b5 Contour

based on Dumps cost estimation sheet;73.5% of Barnes Cr/Lowgrade slopedareas






1b9 Blade

1b10 Seeding (seed, equipment, labor)based on Dumps cost estimation sheet;material cost is 48.4% of total materials


Sloped1b11 Blade

1b12 Seeding (seed + equipment + labor)based on Dumps cost estimation sheet;material cost is 48.4% of total materials

unit cost based on MDEQestimation for sloped surfaces

Revegetation/Stabilization SubtotalBarnes Creek Dump Subtotal

1c Lowgrade Stockpile

Flat

based on Dumps cost estimationworksheet; 61.8% of labor on flatsurfaces; 26.5% of Barnes Cr +Lowgrade area

1c1 Contour based on Dumps cost estimation sheet;26.5% of Barnes Cr/Lowgrade flat areas




1c2 Rip1c3 Cover 1c4 Growth Medium

based on Dumps cost estimationk h t 38 2% f l b l d

TasksFort Knox Mine Reclamation Plan

2001CSP 2 2003 Estimate - Scenario1 CSP 2 2003 Estimate - Scenario 2

CSP 2 2003 Estima3


9/18


Line TasksFort Knox Mine Reclamation Plan


CSP 2 2003 Estima3

2a1 Contour



average unit cost for Borrow Area

Reclamation increased by 50%2a2 Rip2a3 Cover 2a4 Growth Medium



2a9 Blade

2a10 Seeding (seed, equipment, labor)unit cost based on MDEQestimation for flat surfaces


Revegetation/Stabilization SubtotalBorrow #12 Subtotal

2b Laydown Yard

Flatfrom Borrow/Spoil and Misc. Areas costestimation worksheet (laydown)

2b1 Contour



average unit cost for Borrow AreaReclamation increased by 50%




2b9 Blade

2b10 Seeding (seed, equipment, labor)

unit cost based on MDEQ

estimation for flat surfacesSloped

2b11 Blade2b12 Seeding (seed + equipment + labor)

Revegetation/Stabilization SubtotalLaydown Yard Subtotal

2c Aggregate Crusher

Flatfrom Borrow/Spoil and Misc. Areas costestimation worksheet (agg. crusher)

2c1 Contour


contour cost for surface work and

1/2 for cover work thereforeaverage unit cost for Borrow AreaReclamation increased by 50%

2c2 Rip2c3 Cover 2c4 Growth Medium



2c9 Blade

2c10 Seeding (seed, equipment, labor)unit cost based on MDEQestimation for flat surfaces


Revegetation/Stabilization Subtotal Aggregate Crusher Subtotal

2d Borrow # 5

Flatfrom Borrow/Spoil and Misc. Areas costestimation worksheet (#5)

2d1 Contour





Sloped2d5 Contour 2d6 Rip2d7 C


10/18




CSP 2 2003 Estima3

2e10 Seeding (seed, equipment, labor)unit cost based on MDEQestimation for flat surfaces


Revegetation/Stabilization Subtotal

Borrow MB-Pit 1 & Scenic Overlook Subtotal

2f Borrow MB-Pit 2

conduct reclamation consistentwith other borrow areas, acreage

from Figure 1

Flatfrom Borrow/Spoil and Misc. Areas costestimation worksheet (MB-Pit-2)

2f1 Contour

unit cost of $1733/ac based onaverage unit cost for borrow areas

with 12" growth media2f2 Rip2f3 Cover 2f4 Growth Medium



2f9 Blade

2f10 Seeding (seed, equipment, labor)unit cost based on MDEQestimation for flat surfaces


Revegetation/Stabilization SubtotalBorrow MB-Pit 2 Subtotal

2g Borrow # 3-4

Flatfrom Borrow/Spoil and Misc. Areas costestimation worksheet (#3-4)

2g1 Contour




2g2 Rip2g3 Cover 2g4 Growth Medium

Sloped2g5 Contour 2g6 Rip2g7 Cover 2g8 Growth Medium


2g9 Blade

2g10 Seeding (seed, equipment, labor)unit cost based on MDEQestimation for flat surfaces



Borrow # 3-4 Subtotal

2h Borrow # 11

conduct reclamation consistentwith other borrow areas, acreage

from Figure 1


2h1 Contour

unit cost of $1733/ac based onaverage unit cost for borrow areas

with 12" growth media2h2 Rip2h3 Cover 2h4 Growth Medium

Sloped2h5 Contour 2h6 Rip2h7 Cover 2h8 Growth Medium


2h9 Blade

2h10 Seeding (seed, equipment, labor)unit cost based on MDEQestimation for flat surfaces

Sloped2h11 Blade2h12 Seeding (seed + equipment + labor)

Revegetation/Stabilization SubtotalBorrow # 11 Subtotal

2i Borrow # 2




average unit cost for Borrow Area


11/18




CSP 2 2003 Estima3

Flat2j9 Blade

2j10 Seeding (seed, equipment, labor)unit cost based on MDEQestimation for flat surfaces

Sloped2j11 Blade

2j12 Seeding (seed + equipment + labor)Revegetation/Stabilization Subtotal

Solo Creek / Tailing Dam Subtotal

2k Borrow # 14


2k1 Contour




2k2 Rip

2k3 Cover 2k4 Growth Medium

Sloped2k5 Contour 2k6 Rip2k7 Cover 2k8 Growth Medium


2k9 Blade

2k10 Seeding (seed, equipment, labor)unit cost based on MDEQestimation for flat surfaces

Sloped2k11 Blade

2k12 Seeding (seed + equipment + labor)Revegetation/Stabilization SubtotalBorrow # 14 Subtotal

Subtotal Borrow Area Reclamation

3 Open Pit Reclamation3a Highwall reduction3b Regrade open pi t surfaces3c Construct perimeter berm

worksheet

3d Haul and spread cover 3d1 NAG Thickness3d2 Haul and spread NAG3d3 Size and amend growth-medium3d4 Haul and spread growth-medium (18-inches)3e Sub-total haul and spread cover

3f Revegetate and weed controlfrom Open Pit cost estimationworksheet


3g Instal l stormwater controls3h Install additional groundwater controls

Subtotal Open Pit Area Reclamation

4 Facilities, Roads, and Other4a Haul Roads from Roads cost estimation worksheet

Flat assumption of flat surfaces for roads4a1 Contour 4a2 Rip4a3 Cover 4a4 Growth Medium



4a9 Blade

4a10 Seeding (seed, equipment, labor)unit cost based on MDEQestimation for flat surfaces



Haul Roads Subtotal

4b Dismantling and equipment removal

4b1 Removal and/or Demolitionfrom Building and Equipment Sites costestimation worksheet

reclamation plan assumesbuildings removed for salvage prior

to cost estimation for demolition

Buildings

unit cost of $0.19/cf based on RSMeans 2001 demolition cost for steel buildings, assumes 30 ftheight x 154882 sf for 4646460 cf

Foundation

unit cost of $0.75/sf based on

MDEQ demolition cost estimate for SMC East Boulder Mine

Flat assumed flat surfaces for all buildings4b2 Contour 4b3 Rip4b4 Cover 4b5 Growth Medium

Sloped


12/18




CSP 2 2003 Estima3

4c7 Cover 4c8 Growth Medium


4c9 Blade

4c10 Seeding (seed, equipment, labor)

unit cost based on MDEQ

estimation for flat surfacesSloped

4c11 Blade4c12 Seeding (seed + equipment + labor)

Revegetation/Stabilization SubtotalMiscellaneous Sites - Millsite Subtotal

4d Miscellaneous Sites - Conveyor Crossingfrom Miscellaneous Sites costestimation worksheet (Conveyor)

Flat

flat = sloped production rate due toconveyor crossing, therefore all datainput as flat

4d1 Contour


contour cost for surface work and1/2 for cover work thereforeaverage unit cost for Miscellaneous

Sites Reclamation increased by50%


Sloped4d5 Contour 4d6 Rip4d7 Cover 4d8 Growth Medium


4d9 Blade

4d10 Seeding (seed, equipment, labor)unit cost based on MDEQestimation for flat surfaces


Revegetation/Stabilization SubtotalMiscellaneous Sites - Conveyor Crossing Subtotal

4e Miscellaneous Sites - Crusher Stationfrom Miscellaneous Sites costestimation worksheet (Crusher Sta.)

Flat

flat = sloped production rate due toconveyor crossing, therefore all data

input as flat

4e1 Contour



average unit cost for MiscellaneousSites Reclamation increased by

50%4e2 Rip4e3 Cover 4e4 Growth Medium



4e9 Blade

4e10 Seeding (seed, equipment, labor)unit cost based on MDEQestimation for flat surfaces


Revegetation/Stabilization SubtotalMiscellaneous Sites - Crusher Station Subtotal

4f Miscellaneous Sites - Pit Diversion Ditchesfrom Miscellaneous Sites costestimation worksheet (Pit Diversion)

Flat

flat = sloped production rate due toconveyor crossing, therefore all datainput as flat

4f1 Contour



average unit cost for MiscellaneousSites Reclamation increased by

50%4f2 Rip4f3 Cover 4f4 Growth Medium



4f9 Bladeunit cost based on MDEQ


13/18




CSP 2 2003 Estima3

Revegetation/Stabilization SubtotalMiscellaneous Sites - Wetlands Subtotal

4h Instal l stormwater controlsSubtotal Facilities, Roads, Borrow Areas and Other

5 Miscellaneous5a Detoxification/Disposal of Wastes

5b Public Safety

Subtotal Miscellaneous

6 Water Treatment Capture, Pump, Treatment and Discharge6a Interceptor wells6b Col lec tion and distr ibution6c Degrit ting/equilization ponds6d Water treatment plant6e Sludge disposal fac il ities6f Effluent disposal fac il ities

Subtotal Water Treatment Capture, Pump, Treatment and Discharge

Total Tasks 1 thru 6

7 Indirect Costsbased on scenario 1 with 56%

indirect costsbased on scenario

indirect

7a Contingency 5%from Summary Worksheet, 5% of contract cost 5%

7b Mobilization and demobilization 5%from Summary Worksheet, 5% of contract cost 5%

7c Engineering redesign

3% - allows for redesign of theexisting reclamation plan toreflect current conditions in theevent of bankruptcy

7d Engineering, procurement, construction management

5% - accounts for constructionengineering and managementon behalf of agency conductingreclamtion

7e Contractor Overhead

15% - covers administrative,management, safety, legal, andother costs

7f Contractor Profit 10%from Summary Worksheet, 10% of contract cost 10%

7g Agency Administration 5%from Summary Worksheet, 5% of contract cost 5%

7h Inflation 8%from Summary Worksheet, 8% of contract cost 3%

Sub-Total Indirect Costs

Total Capital Cost

Total Costfrom subtotal capital costs plus subtotaloperating consts

from subtotal capital costs plussubtotal operating consts

from subtotal capital costs plussubtotal operating consts

from subtotal capitsubtotal operating


14/18

Detailed Reclamation and Closure/Closeout Bond Cost Estimate - Operating CostsFort Knox Mine Reclamation Plan

Fort Knox MineReclamation Plan April

2001Line Total Cost

1 Interim Water Management and Operations $0 $0 $0 $0 $0

2 Water Treatment Plant2a Labor 2b Reagents2c Maintenance2d Analytical2e Electric Power

Sub-Total Water Treatment Plant $0 $0 $0 $0 $0

3 General Site Operation and Maintenance3a Labor $45,696 $45,696 $45,696 $45,696 $45,6963b Maintenance3c Electric Power 3d Office Expense3e Service Expense3f Site Security

Sub-total General Site Operation and Maintenance $45,696 $45,696 $45,696 $45,696 $45,696

4 Long-Term Operation and Maintenance Expense4a Surface and Groundwater Monitoring4b Reclamation Monitoring

4c Reclamation Maintenance4c1 Manpower 4c2 Equipment4c3 Materials and Supplies

Sub-Total Long-Term Operation and Maintenance Expense $0 $0 $0 $0 $0Total Operating Costs $45,696 $45,696 $45,696 $45,696 $45,696

5 Indirect Costs5a Contingency 5% $2,285 5% $2,285 5% $2,285 5% $2,285 5% $2,2855b Mobilization and demobilization 5% $2,285 5% $2,285 5% $2,285 5% $2,285 5% $2,2855c Engineering redesign 3% $1,371 3% $1,371 3% $1,371 3% $1,3715d Engineering, procurement, construction management 5% $2,285 5% $2,285 5% $2,285 5% $2,2855e Contractor Overhead 15% $6,854 15% $6,854 15% $6,854 15% $6,8545f Contractor Profit 10% $4,570 10% $4,570 10% $4,570 10% $4,570 10% $4,5705g Agency Administration 5% $2,285 5% $2,285 5% $2,285 5% $2,285 5% $2,2855h Inflation 8% $3,656 3% $1,371 3% $1,371 3% $1,371 3% $1,371

Sub-Total Indirect Costs 33% $15,080 51% $23,305 51% $23,305 51% $23,305 51% $23,305

6 Water Treatment Plant Capital Replacement10 yr @ 25% of Water Treatment Plant Capital Costs20 yr @ 25% of Water Treatment Plant Capital Costs40 yr @ 50% of Water Treatment Plant Capital Costs10yr @ $2,000,000 for water management structures

Total Operating Cost $60,776 $69,001 $69,001 $69,001 $69,001

SUMMARY - Ft Knox Mine Tailings Storage Reclamation and Closure Estimate - Operating Costs (Indirect Costs Included)

Item1 Interim Water Management and Operations $0 $0 $0 $0 $0Item 2 Water Treatment Plant $0 $0 $0 $0 $0Item 3 General Site Operation and Maintenance $60,776 $69,001 $69,001 $69,001 $69,001Item 4 Long-Term Operation and Maintenance Expense

Surface and Groundwater Monitoring $0 $0 $0 $0 $0Reclamation Monitoring $0 $0 $0 $0 $0Reclamation Maintenance $0 $0 $0 $0 $0

Sub-Total Long-Term Operation and Maintenance Expense $0 $0 $0 $0 $0Item 6 Water Treatment Plant Capital Replacement $0 $0 $0 $0 $0

Total Operating Reclamation Cost $60,776 $69,001 $69,001 $69,001 $69,001

CSP 2 2003 Estimate -Scenario 3Total Cost

CSP 2 2003 Estimate -Scenario 4Total CostTasks



CSP 2 Page 14 of 18


15/18


16/18

FORT KNOX MINE RECLAMATION PLAN 2001PROJECT CASH FLOW

Nominal Value Present ValueInflation = Discount =

Mine WastePiles Borrow Areas Open Pit

Facilities, Roadsand Other Miscellaneous Water Treatment

Water TreatmentPlant O&M

General SiteO&M

Long-TermO&M

3.0% 5.0%

0 $329,036 $171,003 $9,440 $172,057 $20,259 $701,794 $701,794 $701,7941 $329,036 $171,003 $9,440 $172,057 $20,259 $701,794 $722,847 $687,7592 $329,036 $171,003 $9,440 $172,057 $20,259 $701,794 $744,533 $674,003

Grand Total $987,107 $28,320 $516,171 $0 $0 $0 $60,776 $0 $2,105,383 $2,169,174 $2,063,556

3 years

Year

Cost Area

TotalCapital Costs Operating Costs

CSP 2 Page 16 of 18
mailto:=@npv(L8,K9)mailto:=@npv(L8,K9)mailto:=@npv(L8,K9)mailto:=@npv(L8,K9)mailto:=@npv(L8,K9)mailto:=@npv(L8,K9)mailto:=@npv(L8,K9)mailto:=@npv(L8,K9)mailto:=@npv(L8,K9)


17/18

FORT KNOX MINE RECLAMATION PLAN - CSP2 SCENARIO 1PROJECT CASH FLOW





General SiteO&M

Long-TermO&M

3.0% 5.0%

0 $373,567 $194,146 $10,717 $195,343 $23,000 $796,774 $796,774 $796,7741 $373,567 $194,146 $10,717 $195,343 $23,000 $796,774 $820,676 $780,8392 $373,567 $194,146 $10,717 $195,343 $23,000 $796,774 $845,297 $765,222

Grand Total $1,120,701 $582,439 $32,152 $586,029 $0 $0 $0 $69,001 $0 $2,390,322 $2,462,747 $2,342,835

3 years

Year

Cost Area


CSP 2 Page 17 of 18


18/18

FORT KNOX MINE RECLAMATION PLAN - CSP2 SCENARIO 2, 3, 4PROJECT CASH FLOW





General SiteO&M

Long-TermO&M

3.0% 5.0%

0 $845,289 $549,994 $34,907 $954,983 $23,000 $2,408,174 $2,408,174 $2,408,1741 $845,289 $549,994 $34,907 $954,983 $23,000 $2,408,174 $2,480,418 $2,360,0102 $845,289 $549,994 $34,907 $954,983 $23,000 $2,408,174 $2,554,831 $2,312,810

Grand Total $2,535,868 $104,722 $2,864,950 $0 $0 $0 $69,001 $0 $7,224,521 $7,443,422 $7,080,994

3 years

Year

Cost Area


2 Page 18 of 18

fort knox attachment 1

Documents