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Environmental Impact Statement Addendum: Addition of EL 1134

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Environmental Impact Statement Addendum: Addition of EL 1134 EXXONMOBIL CANADA LTD. EASTERN NEWFOUNDLAND OFFSHORE EXPLORATION DRILLING PROJECT (2018-2029) Environmental Impact Statement Addendum: Addition of EL 1134 Submitted by: ExxonMobil Canada Ltd. 100 New Gower Street, Suite 1000 St. John’s, Newfoundland and Labrador Canada A1C 6K3 Prepared by: Wood Environment & Infrastructure Solutions A Division of Wood Canada Limited 133 Crosbie Road, PO Box 13216 St. John’s, Newfoundland and Labrador Canada A1B 4A5 Wood. TA1813213 September 2018 ExxonMobil Canada Ltd. EIS Addendum TABLE OF CONTENTS Page No. 1 INTRODUCTION ........................................................................................................................ 8 1.1 Original Project and EIS Scope .......................................................................................... 8 1.2 Nature and Purpose of the EIS Addendum (Proposed Addition of EL 1134)..................... 11 2 PROJECT DESCRIPTION ........................................................................................................ 14 2.1 Overview of the Original Project Description ..................................................................... 14 2.2 Evaluation of Planned EL 1134 Activities in Relation to the Overall Project and EA Scope ....................................................................................................................................... 16 3 REGULATORY, INDIGENOUS AND STAKEHOLDER ENGAGEMENT .................................. 19 4 EXISTING ENVIRONMENT ...................................................................................................... 23 4.1 Existing Physical Environment.......................................................................................... 23 4.2 Existing Biological Environment ........................................................................................ 27 4.2.1 Marine Fish and Fish Habitat (Including Species at Risk) ..................................... 27 4.2.1.1 Assemblages and Taxonomic Groups ....................................................... 28 4.2.1.2 Photosynthetic Organisms (Phytoplankton, Plants and Macroalgae) ......... 28 4.2.1.3 Marine Invertebrates (Zooplankton, Benthic and Pelagic Invertebrates) .... 29 4.2.1.4 Marine Fish (Ichthyoplankton, Demersal and Pelagic Fish) ....................... 37 4.2.1.5 Species at Risk ......................................................................................... 46 4.2.2 Marine and Migratory Birds (Including Species at Risk) ........................................ 47 4.2.2.1 Seabirds .................................................................................................... 48 4.2.2.2 Waterfowl .................................................................................................. 52 4.2.2.3 Shorebirds ................................................................................................. 52 4.2.2.4 Other Marine-Associated Avifauna ............................................................ 53 4.2.2.5 Species at Risk ......................................................................................... 53 4.2.2.6 Key Times for Marine and Migratory Birds ................................................. 58 4.2.3 Marine Mammals and Sea Turtles (Including Species at Risk) .............................. 58 4.2.3.1 Mysticetes ................................................................................................. 59 4.2.3.2 Odontocetes .............................................................................................. 59 4.2.3.3 Pinnipeds .................................................................................................. 60 4.2.3.4 Sea Turtles ................................................................................................ 60 4.2.3.5 Species at Risk ......................................................................................... 64 4.2.3.6 Key Times for Marine Mammals and Sea Turtles ...................................... 66 4.2.4 Special Areas ....................................................................................................... 67 4.2.4.1 Canadian (Federally) Identified and Designated Areas .............................. 67 4.2.4.2 Newfoundland and Labrador Special Areas .............................................. 75 4.2.4.3 Internationally Identified Special Areas ...................................................... 75 4.2.4.4 Proximity of Special Areas to EL 1134 ...................................................... 81 4.3 Existing Human Environment ........................................................................................... 84 4.3.1 Commercial Fisheries ........................................................................................... 85 4.3.1.1 Administrative Areas and Key Information Sources ................................... 85 4.3.1.2 Current Domestic Fisheries ....................................................................... 87 4.3.1.3 Location and Timing of Harvest ................................................................. 87 4.3.1.4 Description of Key Fisheries by Species.................................................. 104 4.3.1.5 Fishing Gear ........................................................................................... 112 4.3.1.6 Commercial Fishing Activity by Canadian and Foreign Fishers in NAFO ExxonMobil Eastern Newfoundland Offshore Exploration Drilling Project EIS Addendum September 2018 Page i ExxonMobil Canada Ltd. EIS Addendum Division 3L .............................................................................................. 118 4.3.2 Other Human Components and Activities ........................................................... 122 4.3.2.1 Marine Research ..................................................................................... 122 4.3.2.2 Marine Shipping ...................................................................................... 125 4.3.2.3 Other Offshore Oil and Gas Activity ......................................................... 125 4.3.2.4 Military Operations .................................................................................. 125 4.3.2.5 Other Marine Infrastructure ..................................................................... 125 4.3.3 Indigenous Communities and Activities ............................................................... 126 4.3.4 Other Aspects of the Human Environment .......................................................... 127 5 ENVIRONMENTAL EFFECTS ASSESSMENT ...................................................................... 128 5.1 Marine Fish and Fish Habitat (Including Species at Risk) ............................................... 128 5.1.1 Summary of Environmental Effects Analysis (EIS) .............................................. 129 5.1.1.1 Presence and Operation of Drilling Installation ........................................ 129 5.1.1.2 Drilling and Associated Marine Discharges ............................................. 129 5.1.1.3 Formation Flow Testing with Flaring ........................................................ 130 5.1.1.4 Wellhead Decommissioning .................................................................... 130 5.1.1.5 Geophysical / Geohazard / Wellsite / Seabed Surveys and Vertical Seismic Profiling ................................................................................................... 131 5.1.1.6 Geological, Geotechnical and Environmental Surveys ............................ 131 5.1.1.7 Supply and Servicing ............................................................................... 131 5.1.2 Implications of the Addition of EL 1134 ............................................................... 132 5.1.2.1 Drill Cutting Modelling Specific to EL1134 ............................................... 132 5.2 Marine and Migratory Birds (Including Species at Risk) .................................................. 138 5.2.1 Summary of Environmental Effects Analysis (EIS) .............................................. 138 5.2.1.1 Presence and Operation of Drilling Installation ........................................ 138 5.2.1.2 Drilling and Associated Marine Discharges ............................................. 139 5.2.1.3 Formation Flow Testing with Flaring ........................................................ 139 5.2.1.4 Wellhead Decommissioning .................................................................... 139 5.2.1.5 Project-Related Surveys .......................................................................... 139 5.2.1.6 Supply and Servicing ............................................................................... 140 5.2.2 Implications of the Addition of EL 1134 ............................................................... 140 5.3 Marine Mammals and Sea Turtles (Including Species at Risk) ....................................... 144 5.3.1 Summary of Environmental Effects Analysis (EIS) .............................................. 144 5.3.1.1 Presence and Operation of Drilling Installation ........................................ 144 5.3.1.2 Drilling and Associated Marine Discharges ............................................. 145 5.3.1.3 Formation Flow Testing with Flaring ........................................................ 145 5.3.1.4 Wellhead Decommissioning .................................................................... 145 5.3.1.5 Project-related Surveys ..........................................................................
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