Final Site Information Package for National Remedy Review Board ...

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TABLE B14-1 Estimated Costs Summarized by Alternative Site Information Package for National Remedy Review Board Total Capital O&M Cost (30- O&M Cost (Annual Total Cost Alternative Description Cost Year NPV) Average) (30-Year NPV) Alternative 3+ (a) More Extensive Removal, Disposal, and Treatment w/ Minimal Stream Lining $ 1,140,000,000 $ 87,700,000 $ 7,080,000 $ 1,320,000,000 Alternative 3+ (b) More Extensive Removal, Disposal, and Treatment w/ Extensive Stream Lining $ 1,110,000,000 $ 87,500,000 $ 7,060,000 $ 1,290,000,000 Alternative 3+ (c) More Extensive Removal, Disposal, and Treatment w/ French Drains $ 1,100,000,000 $ 88,400,000 $ 7,140,000 $ 1,280,000,000 Alternative 3+ (d) More Extensive Removal, Disposal, and Treatment w/ Stream Lining and French Drain Combination Alternative 3+ (e) More Extensive Removal, Disposal, and Treatment w/ Extensive Stream Lining and French Drain Combination Alternative 4+ (a) Maximum Removal, Disposal, and Treatment w/ Minimal Stream Lining Alternative 4+ (b) Maximum Removal, Disposal, and Treatment w/ Extensive Stream Lining Alternative 4+ (c) Maximum Removal, Disposal, and Treatment w/ French Drains Alternative 4+ (d) Maximum Removal, Disposal, and Treatment w/ Stream Lining and French Drain Combination Alternative 4+ (e) Maximum Removal, Disposal, and Treatment w/ Extensive Stream Lining and French Drain Combination Alternative RP-1 No Further Action (Post-Event Response) a $ $ $ $ 1,110,000,000 1,330,000,000 1,690,000,000 1,650,000,000 $ $ $ $ 89,100,000 94,200,000 137,900,000 137,700,000 $ $ $ $ 7,190,000 7,600,000 11,130,000 11,110,000 $ $ $ $ 1,290,000,000 1,520,000,000 1,970,000,000 1,930,000,000 $ 1,650,000,000 $ 138,600,000 $ 11,190,000 $ 1,930,000,000 $ $ -- 1,660,000,000 1,870,000,000 $ $ -- 139,300,000 144,400,000 $ $ -- 11,240,000 11,660,000 $ $ 1,940,000,000 2,160,000,000 $50,100,000 Alternative RP-2 Remedy Protection Projects $ 24,600,000 $ 9,160,000 $ 401,000 $33,900,000 Notes: O&M = operation and maintenance; NPV = net present value a Costs for RP-1 include expected post-event response costs based on methodology described in Memorandum: Methodology for Estimating Expected Loss from Damage to Remedies (CH2M HILL, 2009e). NOTE: The above costs are presented rounded to three significant figures. NOTE: The above cost opinion is a Feasibility Study-level estimate with a nominal accuracy of –30 percent to +50 percent (–30/+50%). NOTE: The above cost opinion is in 2009 dollars and does not include future escalation. The order-of-magnitude cost opinion shown has been prepared for guidance in project costs, actual site conditions, productivity, competitive market conditions, the final project scope, the final project schedule, and other variable factors. As a result, the final project costs will vary from those presented above. Because of these factors, funding needs must be carefully reviewed prior to making specific financial decisions or establishing final budgets. NOTE: Active treatment is not included in OU 2 Alternatives (a) and (b); therefore, total flows for Alternatives 3+(a) and 3+(b) and Alternatives 4+(a) and 4+(b) will be identical. NOTE: The O&M Cost (Annual Average) is calculated by dividing the O&M Cost (30-Year NPV) by a factor of 12.409 to account for the 30 years at 7%. Page 1 of 1
TABLE B14-2 Summary of Estimated Costs for Typical Conceptual Designs Site Information Package for National Remedy Review Board TCD Code Name Unit Source Control TCDs 2009 Direct Capital Unit Cost a ($) 2009 Present Value of 30 Indirect Years of Capital Unit Cost b Operations and Maintenance Costs (%) b (%) C01 Excavation (dry) CY $4.20 70 0 C01b Excavation (60% dry/40% wet) CY $13.20 70 0 C02a Regrade/Consolidate/Revegetate AC $84,300.00 70 13 Cover: Lower Part of Pile in 100- Year Floodplain C02b Regrade/Consolidate/Revegetate AC $167,000.00 70 13 Cover: Waste Rock Pile in Stream Valley C02c Regrade/Consolidate/Revegetate AC $14,900.00 70 23 Cover: Stabilize Using Erosion Protection C03 Low-Permeability Cap AC $225,000.00 70 12 C04 Low-Permeability Cap with AC $254,000.00 70 23 Seepage Collection and Treatment C05 Low-Permeability Cap with Erosion AC $252,000.00 70 23 Protection C06 Waste Consolidation Area with CY $15.70 70 23 Erosion Protection C07 Waste Consolidation Area Above CY $14.70 70 22 Flood Level C08a Repository, 1 million cy CY $17.70 70 14 C09 Impoundment Closure AC $246,000.00 70 20 HAUL-2 Haul to Repository CY- $1.10 70 0 MI Water Collection, Conveyance, and Management TCDs C10 Adit Drainage Collection LS $9,680.00 70 18 C11a Hydraulic Isolation Using Slurry LF $196.00 70 0 Wall (no drain): 15 ft deep C11b Hydraulic Isolation Using Slurry LF $261.00 70 0 Wall (no drain): 20 ft deep C11c Hydraulic Isolation Using Slurry LF $391.00 70 0 Wall (no drain): 30 ft deep C11d Hydraulic Isolation Using Slurry LF $522.00 70 0 Wall (no drain): 40 ft deep Page 1 of 4
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United States Environmental Protect
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Contents Acronyms and Abbreviations
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SITE INFORMATION PACKAGE FOR NATION
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Acronyms and Abbreviations µg/dL m
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RAO remedial action objective RI/FS
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1. Site Name, Location, and Brief H
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5. Current and Potential Future Sit
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6. Summary of Risks The Bunker Hill
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8. Description of Alternatives The
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Remedial Alternative Description SI
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12. Potential Applicable or Relevan
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COMMISSIONERS: PFfifiY WHITF CLERK
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Dan Opalski, U.S. EPA March 10,2010
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Dan Opalski, U.S. EPA March 10, 201
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Dan Opalski, U.S. EPA March 10,2010
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Rose Lake ll n e §¨¦ 90 DUDLEY "
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1992-1994 Removal of tailings and c
Page 122 and 123: The box plot shows the median or 50
Page 124 and 125: ! ( ! ! ( ! ! ! Upper Basin Coeur d
Page 126 and 127: DUDLEY ") §¨¦ 90 ") St Joe River
Page 128 and 129: Base Map Data: NHDPlus (Rivers, Wat
Page 130 and 131: [Two Updated Updated Woodland Ecolo
Page 132 and 133: Ninemile Creek WALLACE BUNN Upper B
Page 134 and 135: OSBURN §¨¦ 90 Upper Basin Coeur
Page 136 and 137: 176 E Upper Basin Coeur d'Alene Riv
Page 138 and 139: §¨¦ 90 ENAVILLE The Bunker Hill
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Page 142 and 143: TABLE B2-1 Summary of Ongoing Data
Page 144 and 145: TABLE B4-2 Screening Level Exceedan
Page 146 and 147: TABLE B7-1 Preliminary Remediation
Page 148 and 149: TABLE B8-1 Descriptions of Typical
Page 150 and 151: TABLE B8-2 Summary of Alternatives
Page 152 and 153: TABLE B9-1a Comparative Analysis of
Page 158 and 159: TABLE B9-1b Comparative Analysis of
Page 164 and 165: TABLE B11-1 Legend of Bureau of Lan
Page 166 and 167: TABLE B11-1 Legend of Bureau of Lan
Page 168 and 169: TABLE B11-2 Summary of Estimated Po
Page 170 and 171: TABLE B11-4 Summary of Remedy Prote
Page 174 and 175: TABLE B14-2 Summary of Estimated Co
Page 176: TABLE B14-2 Summary of Estimated Co
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Final Site Information Package for National Remedy Review Board ...

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