Environmental Impact Assessment(EIA) Registration for the ...

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REVISED PROJECT DESCRIPTION AND ENVIRONMENTAL IMPACT ASSESSMENT (EIA) REGISTRATION FOR THE NEPISIGUIT FALLS GENERATING STATION MODIFICATION AND REHABILITATION PROJECT 3.5.2 Rare Plants .........................................................................................................29 3.6 WETLAND ENVIRONMENT.............................................................................................30 3.7 LAND USE AND ECONOMY............................................................................................30 3.8 HERITAGE RESOURCES ...............................................................................................31 3.9 ABORIGINAL LAND AND RESOURCE USE ...................................................................31 3.10 ROAD TRANSPORTATION .............................................................................................32 4.0 ENVIRONMENTAL EFFECTS ASSESSMENT .................................................................33 4.1 METHODOLOGY .............................................................................................................33 4.2 POTENTIAL INTERACTIONS OF THE PROJECT WITH THE ENVIRONMENT ..............33 4.2.1 Project-Environment Interaction Matrix ................................................................33 4.2.2 VECS with No Interaction, or No Significant Interaction with the Project ..............34 4.2.2.1 Atmospheric Environment ...............................................................................35 4.2.2.2 Water Resources ............................................................................................36 4.2.2.3 Terrestrial Environment ...................................................................................37 4.2.2.4 Wetland Environment ......................................................................................39 4.2.2.5 Land Use and Economy ..................................................................................39 4.2.2.6 Heritage Resources ........................................................................................40 4.2.2.7 Current Use of Land and Resources for Traditional Purposes by Aboriginal Persons ...........................................................................................................41 4.2.2.8 Road Transportation .......................................................................................42 4.2.2.9 Effects of the Environment on the Project .......................................................43 4.2.3 VECs Which May Result in an Interaction with the Project that Requires Further Evaluation ...........................................................................................................44 4.3 AQUATIC ENVIRONMENT ..............................................................................................44 4.3.1 Scope of Assessment ..........................................................................................44 4.3.1.1 Rationale for Selection of Valued Environmental Component and Regulatory Context ...........................................................................................................45 4.3.1.2 Selection of Environmental Effects and Measurable Parameters ....................45 4.3.1.3 Temporal Boundaries ......................................................................................46 4.3.1.4 Spatial Boundaries ..........................................................................................47 4.3.1.5 Administrative and Technical Boundaries ........................................................47 4.3.1.6 Residual Environmental Effects Rating Criteria ...............................................48 4.3.2 Existing Aquatic Environment ..............................................................................48 4.3.3 Potential Project-VEC Interactions ......................................................................50 4.3.4 Assessment of Project-Related Environmental Effects ........................................52 4.3.5 Assessment of Cumulative Environmental Effects ...............................................62 4.3.6 Determination of Significance ..............................................................................62 4.3.7 Follow-up and Monitoring ....................................................................................63 4.4 ACCIDENTS, MALFUNCTIONS, AND UNPLANNED EVENTS .......................................63 4.4.1 Methodology ........................................................................................................63 4.4.2 Identification of Accidents, Malfunctions, and Unplanned Events ........................64 4.4.3 Environmental Effects Assessment .....................................................................65 4.4.3.1 Loss of Containment .......................................................................................66 4.4.3.2 Failure of the Coffer Dam ................................................................................67 4.4.3.3 Hazardous Material Spills ...............................................................................68 4.4.3.4 Erosion and Sediment Control Failure .............................................................69 4.4.3.5 Fire .................................................................................................................70 Page ii June 15, 2011
REVISED PROJECT DESCRIPTION AND ENVIRONMENTAL IMPACT ASSESSMENT (EIA) REGISTRATION FOR THE NEPISIGUIT FALLS GENERATING STATION MODIFICATION AND REHABILITATION PROJECT 4.4.3.6 Discovery of a Heritage Resource ...................................................................71 4.4.3.7 Vehicle Accident .............................................................................................71 4.4.3.8 Wildlife Encounter ...........................................................................................72 4.4.4 Determination of Significance ..............................................................................73 5.0 PUBLIC, STAKEHOLDER AND ABORIGINAL ENGAGEMENT ......................................74 5.1 PUBLIC AND STAKEHOLDER ENGAGEMENT ..............................................................74 5.2 ABORIGINAL ENGAGEMENT .........................................................................................75 5.3 REPORTING ....................................................................................................................76 6.0 CLOSURE .........................................................................................................................77 7.0 REFERENCES ..................................................................................................................78 7.1 LITERATURE CITED .......................................................................................................78 7.2 PERSONAL COMMUNICATIONS ....................................................................................80 List of Tables Table 4.1 Potential Interactions of the Project with the Environment ..................................34 Table 4.2 Measurable Parameters for the Aquatic Environment ........................................46 Table 4.3 Potential Project Environmental Effects to the Aquatic Environment ..................50 Table 4.4 Summary of Residual Project-Related Environmental Effects on the Aquatic Environment .......................................................................................................53 Table 4.5 Estimated Area (Watered and Dewatered) of the Reservoir ...............................56 Table 4.6 Potential Interactions of Project-Related Accidents, Malfunctions, and Unplanned Events with the Environment ..............................................................................65 Table 5.1 Preliminary List of Stakeholders .........................................................................74 List of Figures Figure 1.1 Project Location .................................................................................................. 3 Figure 1.2 Aerial Photograph Showing Project Location ...................................................... 7 Figure 2.1 Project Overview ................................................................................................11 List of Appendices Appendix A Appendix B Appendix C Appendix D New Brunswick EIA Registration – Additional Information Requirements Site Photos Project Plans and Profiles NB Power’s Watercourse and Wetland Alteration Permit June 15, 2011 Page iii
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REVISED PROJECT DESCRIPTION AND ENV
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View of the Spillway Dam Showing Wo
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Client: New Brunswick Power Corpora
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Scale: Job No.: Figure No.: Cross S
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Spillway Concrete Repair Works Plan
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Cross Section of the Rubber Dam Dra
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Brunswick PERMIT FOR WATERCOURSE AN
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DOCUMENT "A" Attached to ALT 31667'
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