APPENDIX 3.6 Supporting Information for Aquatic Resources APPENDIX 3.6 Supporting Information for Aquatic Resources Table of Contents 1.0 INTRODUCTION .............................................................................................................................................................. 1 2.0 CHRONIC EFFECTS BENCHMARKS ............................................................................................................................. 1 2.1 Updated Canadian Council of Ministers of the Environment Protocol ................................................................. 1 2.2 Application ........................................................................................................................................................... 2 2.3 Screening of Constituents for Chronic Effects Benchmark Development ............................................................ 2 2.4 Methods ............................................................................................................................................................... 5 2.4.1 General Approach .................................................................................................................................... 5 2.5 Procedure ............................................................................................................................................................ 8 2.5.1 Step 1: Creation of a Toxicological Database ........................................................................................... 8 2.5.2 Step 2: Statistical Analysis of Toxicity Data ............................................................................................ 13 2.5.3 Step 3: Identification of Chronic Effects Benchmark ............................................................................... 14 2.6 Chronic Effects Benchmark Results for Metals .................................................................................................. 14 2.6.1 Aluminum................................................................................................................................................ 14 2.6.2 Antimony ................................................................................................................................................ 16 2.6.3 Arsenic ................................................................................................................................................... 17 2.6.4 Barium .................................................................................................................................................... 18 2.6.5 Beryllium ................................................................................................................................................. 19 2.6.6 Boron ...................................................................................................................................................... 19 2.6.7 Cadmium ................................................................................................................................................ 19 2.6.8 Chromium ............................................................................................................................................... 21 2.6.9 Cobalt ..................................................................................................................................................... 23 2.6.10 Copper .................................................................................................................................................... 23 2.6.11 Iron ......................................................................................................................................................... 27 2.6.12 Lead ....................................................................................................................................................... 27 2.6.13 Manganese ............................................................................................................................................. 28 May 2012 Project No. 10-1346-0001 i APPENDIX 3.6 Supporting Information for Aquatic Resources 2.6.14 Mercury .................................................................................................................................................. 29 2.6.15 Aquatic Benchmark Derivation ............................................................................................................... 29 2.6.16 Molybdenum ........................................................................................................................................... 36 2.6.17 Nickel ...................................................................................................................................................... 39 2.6.18 Silver ...................................................................................................................................................... 41 2.6.19 Strontium ................................................................................................................................................ 44 2.6.20 Vanadium ............................................................................................................................................... 51 2.6.21 Zinc ......................................................................................................................................................... 51 2.7 Chronic Effects Benchmark Results for Polycyclic Aromatic Hydrocarbons ...................................................... 53 2.7.1 Anthracene ............................................................................................................................................. 54 2.7.2 Fluoranthene .......................................................................................................................................... 55 2.7.3 Fluorene ................................................................................................................................................. 57 2.7.4 Naphthalene ........................................................................................................................................... 59 2.7.5 Phenanthrene ......................................................................................................................................... 61 2.7.6 Pyrene .................................................................................................................................................... 64 2.7.7 Application of Polycyclic Aromatic Hydrocarbon Compounds to Groups ................................................ 65 2.8 Chronic Effects Benchmark Results for Other Constituents .............................................................................. 65 2.8.1 Ammonia ................................................................................................................................................ 65 2.8.2 Naphthenic Acids .................................................................................................................................... 66 2.8.3 Sulphide ................................................................................................................................................. 67 2.8.4 Dissolved Solids ..................................................................................................................................... 68 2.8.5 Total Phenolics ....................................................................................................................................... 69 2.9 Selected Chronic Effects Benchmarks............................................................................................................... 70 3.0 UPDATE TO NAPHTHENIC ACIDS DEGRADATION ASSUMPTIONS FOR THE JACKPINE MINE EXPANSION & PIERRE RIVER MINE ........................................................................................................................... 72 3.1 Introduction ........................................................................................................................................................ 72 3.2 Assessment Methods ........................................................................................................................................ 72 3.3 Results and Discussion ..................................................................................................................................... 74 May 2012 Project No. 10-1346-0001 ii APPENDIX 3.6 Supporting Information for Aquatic Resources 3.4 Summary ........................................................................................................................................................... 79 4.0 UPDATE TO JACKPINE MINE EXPANSION PIT LAKE MODELLING ........................................................................ 79 4.1 Introduction ........................................................................................................................................................ 79 4.2 Assessment Methods ........................................................................................................................................ 79 4.3 Results ............................................................................................................................................................... 80 4.4 Summary ..........................................................................................................................................................