Public Works and Government Services Canada on behalf of Transport Canada REMEDIAL ACTION PLAN, FORMER METAL DUMP AND COMMUNITY LANDFILL Iqaluit, Nunavut 27 January 2017 REMEDIAL ACTION PLAN, FORMER METAL DUMP AND COMMUNITY LANDFILL REMEDIAL ACTION PLAN, FORMER METAL DUMP AND COMMUNITY LANDFILL Transport Canada (Custodian) Steve Livingstone, M.Sc., P.Geo. Prepared for: Project Director Michael Brownlee, Sr. Environmental Specialist Public Works and Government Services Canada 10025 Jasper Avenue, Edmonton, Alberta T5J 1S6 Prepared by: Ryan Fletcher, C. Tech, CEPIT 329 Churchill Avenue North, Suite 200 Sr. Environmental Technician Ottawa, Ontario K1Z 5B8 Tel 613 721 0555 Fax 613 721 0029 Our Ref.: Caroline Béland-Pelletier, M.Sc., P.Eng., PMP 102153-000 Sr. Contaminant Hydrogeologist Date: 27 January 2017 This document is intended only for the use of the individual or entity for which it was prepared and may contain information that is privileged, confidential and exempt from disclosure under applicable law. Any dissemination, distribution or copying of this document is strictly prohibited. arcadis.com z:\projects\2016\102153-000 tc iqaluit\rap update\rap iqaluit former metal community dump_final_20170127.docx REMEDIAL ACTION PLAN, FORMER METAL DUMP AND COMMUNITY LANDFILL VERSION CONTROL Issue Revision No Date Issued Description Reviewed by 1 0 2016-12-15 Draft SL 2 0 2017-01-27 Final SL arcadis.com z:\projects\2016\102153-000 tc iqaluit\rap update\rap iqaluit former metal community dump_final_20170127.docx REMEDIAL ACTION PLAN, FORMER METAL DUMP AND COMMUNITY LANDFILL CONTENTS Acronyms and Abbreviations ........................................................................................................................ iv Executive Summary ...................................................................................................................................... 1 1 Introduction ............................................................................................................................................. 1 1.1 Background .................................................................................................................................... 1 1.2 Previous Investigation .................................................................................................................... 2 1.3 Report Format ................................................................................................................................ 3 2 Scope ...................................................................................................................................................... 4 2.1 Remedial Action Plan Objectives ................................................................................................... 4 2.2 Remediation Planning Team and Responsibilities ......................................................................... 4 3 Site Setting ............................................................................................................................................. 6 3.1 Site Location and Access ............................................................................................................... 6 3.2 Site Overview ................................................................................................................................. 6 3.3 Current and Historical Land Use .................................................................................................... 7 3.4 Natural Environment – Overview .................................................................................................... 8 3.4.1 Regional and Local Topography ......................................................................................... 8 3.4.2 Regional and Local Drainage .............................................................................................. 8 3.4.3 Pond Systems ..................................................................................................................... 9 3.4.4 Ecological Characterization of Site ................................................................................... 10 3.5 Climate ......................................................................................................................................... 12 4 Regulatory Framework and Environmental Quality Criteria ................................................................. 13 4.1 Regulatory Framework ................................................................................................................. 13 4.2 Environmental Quality Criteria ...................................................................................................... 13 5 Site Investigations and Impacts ............................................................................................................ 17 5.1 Site Investigations ........................................................................................................................ 17 5.1.1 Contaminants of Concerns ............................................................................................... 17 5.1.2 Testing Program ................................................................................................................ 17 5.1.3 Physical Hazard Survey .................................................................................................... 19 5.2 Environmental Impacts ................................................................................................................. 19 5.3 Main Landfill Slope Stability (AEC 3) ............................................................................................ 21 arcadis.com z:\projects\2016\102153-000 tc iqaluit\rap update\rap iqaluit former metal community dump_final_20170127.docx i REMEDIAL ACTION PLAN, FORMER METAL DUMP AND COMMUNITY LANDFILL 5.4 Non-Hazardous and Hazardous Waste Debris ............................................................................ 21 5.5 Conclusion .................................................................................................................................... 22 6 Remedial Options Evaluation ............................................................................................................... 23 7 Selected Remedial Strategy ................................................................................................................. 26 7.1 Engineered Decommissioning of Landfill (AEC 3) ....................................................................... 27 7.2 Waste Stream Management ......................................................................................................... 28 8 Implementation Plan ............................................................................................................................. 29 8.1 Pre-Remediation Tasks ................................................................................................................ 29 8.2 Remediation Tasks ....................................................................................................................... 29 8.3 Post-Remediation Tasks .............................................................................................................. 30 9 Conclusion ............................................................................................................................................ 31 TABLES Table 1. Remediation Planning Team and Responsibilities ......................................................................... 5 Table 2. Site Historical Usage ....................................................................................................................... 7 Table 3. Ecology of Iqaluit, Nunavut ........................................................................................................... 11 Table 4. Summary of Site Specific Environmental Quality Criteria ............................................................. 1 5 Table 5. Summary of AECs and Potential Concerns .................................................................................. 17 Table 6: 2008, 2009 and 2016 Testing Program ........................................................................................ 18 Table 7: Summary of Contaminant Impacts ................................................................................................ 20 Table 8: Summary of Waste Debris ............................................................................................................ 21 Table 9: Definition of Option Category ........................................................................................................ 23 Table 10: Remedial Option Evaluation ....................................................................................................... 24 Table 11: Outline of Selected Remedial Strategy ....................................................................................... 26 PHOTOS Photo 1-1: Showing – Main Landfill .............................................................................................................. 2 Photo 1-2: Showing – Vehicle Dump ............................................................................................................ 2 Photo 3-1: Showing Panoramic View of Typical Topography from Top of Landfill ....................................... 9 Photo 3-2: Showing Pond 5 .......................................................................................................................