Kensington Gold Project Final Supplemental Environmental Impact ...

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A-31 Kensington Gold Project Final SEIS Appendix A Table 5. Dissolved Whole Rock Metal and Sulfur Geochemistry, M4 Sample CMRI (1998) CMRI 1998 M4 CMRI C2 CMRI C3 CMRI C4 CMRI C5 (detection CMRI D2 Leach Decant Leach Decant Leach Decant Leach Decant Kensington Mine Parameter limit) DUPLICATES C2 Water Water Water Water Water 1998 Met. lab name CMRI CMRI CMRI CMRI CMRI CMRI Anal. lab name MW/BNL MW/BNL MW/BNL MW/BNL MW/BNL MW/BNL Process Recycle Recycle Recycle Recycle Recycle Adit Date test 1998 1998 1998 1998 1998 9/18/1998 No. samples 1 1 1 1 1 1 Composite 3.7 ton 3.7 ton 3.7 ton 3.7 ton 3.7 ton grab Aluminum (µg/L) 250 3,200 3,100 2,200 3,200 660 3,200 Arsenic (µg/L) 0.02
Parameter A-32 Kensington Gold Project Final SEIS Appendix A Table 5. Dissolved Whole Rock Metal and Sulfur Geochemistry, M4 Sample (continued) CMRI 1998 (detection limit) M4 CMRI D2 DUPLICATES C2 CMRI (1998) CMRI (1998) CMRI C2 Leach Decant Water Parameter CMRI 1998 (detection limit) M4 CMRI D2 DUPLICATES C2 WHOLE ROCK TAILS DATA Rescan, 2000 Rescan, 2000 Rescan, 2000 Rescan, 2000 Rescan, 2000 Tails digestion 4 acid 4 acid 4 acid 4 acid 4 acid Tails tot S, % 0.06 0.06 0.06 0.06 0.06 Tails Cu, ppm 27 27 27 27 27 Tails Fe, ppm 31,600 31,600 31,600 31,600 31,600 Tails Pb, ppm 6 6 6 6 6 Tails, Hg ppb 10 10 10 10 10 Tails Mn, ppm 14,000 14,000 14,00 14,000 14,000 Tails Ni, ppm 32 32 32 32 32 Tails Zn, ppm 54 54 54 54 54 CMRI C2 Leach Decant Water
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Page 4 and 5: CONTENTS iii Kensington Gold Projec
Page 6 and 7: Appendix A: Water Quality Analysis
Page 8 and 9: Table 1. NSPS for Mine Drainage Dai
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Page 12 and 13: Receiving Water Hardness Table 3. (
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Page 16 and 17: Table 2. Summary of Water Quality C
Page 18 and 19: Table 3. (continued) A-13 Kensingto
Page 20 and 21: Attachment A-3 - Results of TSF Dis
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Page 28 and 29: d - DRILL INTERCEPT M1 = 1991 Bulk
Page 40 and 41: Table 7. Total Whole Rock Metal and
Page 42 and 43: Table 8. Total Whole Rock Metal and
Page 52 and 53: Table 12. Projected TSF Water Quali
Page 56 and 57: Appendix B: Essential Fish Habitat
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Page 64 and 65: Fresh Water B-9 Kensington Gold Pro
Page 66 and 67: Sediment Quality B-11 Kensington Go
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Page 70: Literature Cited B-15 Kensington Go
Page 73 and 74: Ecological Risk Assessment of Aqueo
Page 75 and 76: FIGURES FINAL Figure 1.1 Final Exte
Page 77 and 78: TEC threshold effect concentration
Page 79 and 80: Figure 1.1 Final Extent of TSF and
Page 81 and 82: Figure 1.3 Tailings Placement and E
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FINAL A wide variety of benthic mac
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2.3 Conceptual Site Model FINAL Bas
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FINAL subsequent consumption of COP
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Management Goal 3: FINAL ⇒ Protec
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FINAL This assessment endpoint was
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Table 2.2 Summary of Management Goa
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Table 3.1 Comparison of Decant Wate
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FINAL Chapman et al. (2000) reporte
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FINAL Shading of cells in Table 3.2
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FINAL The bioaccumulation potential
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4.0 RISK ANALYSIS FINAL The Risk An
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4.2 Exposure Assessment 4.2.1 Recep
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FINAL ingestion rates and water ing
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4.2.3 Bioaccumulation Factors and E
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FINAL reported NOAEL and LOAEL valu
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4.3.1.2 Operational Water Table 4.6
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FINAL While both Cr +6 and Cr +3 ar
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FINAL 10 8 gallons would be orders
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4.3.4.2 Post-Closure Conditions FIN
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Table 5.1 Summary of Risk Character
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FINAL scenario. Chromium concentrat
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FINAL forage base, primarily throug
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FINAL would have sufficient light p
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Table 5.4 Data Corresponding to Fig
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FINAL Table 5.5 Summary of Risk Cha
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FINAL contain elevated levels of ar
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FINAL It is also important to note
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FINAL volume of water present and t
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FINAL DOE-SRS (Department of Energy
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FINAL Mount, D.R., D.D. Gulley, J.R
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FINAL USFS (U.S. Forest Service). 2
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Attachment A. Dietary NOAEL and LOA
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Table B.1 Safe and Toxic Water Conc
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Table B.2 Safe and Toxic Soil and W
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FINAL Havas, M., and G.E. Likens. 1
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FINAL Tetra Tech, Inc. C-86 Decembe
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Table C.1a Bioaccumulation Factors
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Table C.2 Calculated Aluminum EPC V
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Table C.3a Bioaccumulation Factors
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REFERENCES FINAL Brooks, R.R. 1972.
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FINAL Tetra Tech, Inc. C-96 Decembe
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FINAL reported that coho salmon avo
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Table D.2 Literature Values for Sed
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Table D.2b TSS Effects on Salmonid
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Table D.2d TSS Effects on Adult Sal
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Table D.4 Matrix Table for Alevin S
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Table D.2e TSS Effects on Non-Salmo
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Table D.10 Effects of Deposited Sed
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Table D.12 Matrix Table for All Rec
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Specific Examples of Subaqueous Tai
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FINAL community in the tailings are
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FINAL Goldes, S.A. 1983. Histologic
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FINAL Schubel, J.R., A.H. Auld, and
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FINAL Tetra Tech, Inc. C-126 Decemb
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Table E.1 Calculated Doses for Each
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Appendix D Preliminary Reclamation
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D-2 Kensington Gold Project Final S
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2.1 Permanent Closure and Final Rec
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D-10 Kensington Gold Project Final
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Post-Mining Inspection Schedule D-1
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Attachment D-1 Preliminary Reclamat
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D-30
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Appendix E Best Management Practice
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E-2 Kensington Gold Project Final S
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Kensington Gold Project Final SEIS
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Figures: Figure 1 - General Facilit
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aware that in an emergency, only th
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is to streamline the gathering and
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operating and response procedures t
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Safety and Health Administration (O
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Coeur Alaska has established the fo
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After testing of an employee for re
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employee to ensure that the employe
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A release from either vertical or h
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2.3 Receiving Environment Risk Anal
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• Nearest dwelling, water body, w
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Rapid response caches will be secur
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4. The truck driver, vessel enginee
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Appendix - 2 Initial Spill Report F
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APPENDIX 4 MATERIAL SAFETY DATA SHE
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Unalaska Skagway Haines Sitka Nome
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Purpose and Need for Policy During
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planning goal of Modified Landscape
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Other Standard Operating Procedures
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� Regular inspection of fuel line
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Appendix F Old-Growth Habitat
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F-2 Kensington Gold Project Final S
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F-4 Kensington Gold Project Final S
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Appendix G Ground Water Quality
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,; ‘) ‘. ,/”’ “5k+9B .. 0
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\ r. \\\cc0wz3
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Table G-2. Laboratory Methods, Repo
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Table G-3. Summary of Ground Water
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TabIe G-3. Summary of Ground Water
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Appendix H Migratory Birds: Birds o
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H-2 Kensington Gold Project Final S
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H-4 Kensington Gold Project Final S
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I-1
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I-5
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Appendix J Biological Assessment/Bi
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CONTENTS 1. INTRODUCTION 1-1 2. PRO
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Acronyms and Abbreviations µPa mic
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Kensington Gold Project BA/BE Novem
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Background Coeur Alaska Kensington
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Figure 2 3
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Associated monitoring programs woul
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SOP #5: Vessels will operate at low
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Point and Slate Creek Cove transpor
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- reducing the amount of habitat to
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Kensington Gold Project SPILL RESPO
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EMERGENCY RESPONSE FORM - INJURY an
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Kensington Gold Project - Initial S
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Appendix 3 - Contact Information a.
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APPENDIX 5 TYPICAL SOIL EROSION AND
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Appendix K USEPA and State of Alask
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K-2 Kensington Gold Project Final S
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K-4 Kensington Gold Project Final S
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Appendix L: Draft SEIS Comments and
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Section 1 Comment Summary L-1
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Comment Summary The Forest Service
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Ten commenters who supported Altern
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Mailing Location Table L-1 Demograp
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Section 2 Agency and Tribal Organiz
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