Appendix 23 Fish Report
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Environmental Assessment Application Proposed Knob Hill Wind Farm APPENDIX 24: FINAL REPORT ON FISH AND FISH HABITAT BY SHAWN HAMILTON January 25, 2004 Sea Breeze Energy Inc. Appendix 24 Environmental Assessment Application Proposed Knob Hill Wind Farm CONTENTS: Final Report On Fish Habitat Plate 1 Knob Hill Wind Farm Stream Reaches and Codes January 25, 2004 Sea Breeze Energy Inc. Appendix 24 Fish and Fish Habitat Impact Assessment of the Knob Hill Wind Farm Project Reconnaissance Level Fish Habitat Assessment of the Knob Hill Wind Farm Project Vancouver Island Prepared By: Shawn Hamilton and Associates January, 2004 Fish and Fish Habitat Impact Assessment of the Knob Hill Wind Farm Project Reconnaissance Level Fish Habitat Assessment of the Knob Hill Wind Farm Project Vancouver Island January, 2004 Prepared for: Sea Breeze Energy Inc. Box 91 Suite 1400 – 601 W Hastings Street Vancouver, B.C. V6B 5A6 Prepared by: Shawn Hamilton, R. P. Bio. and Associates 430 Odyssey Lane Victoria, B.C. V9E 2J2 Fish and Fish Habitat Impact Assessment of the Knob Hill Wind Farm Project Acknowledgments This report was prepared for Sea Breeze Energy Inc. Thanks are due to Resja Campfens and James Griffiths of Sea Breeze for their ongoing support. Harold Waldock, Sea Breeze, reviewed the draft report and provided many helpful suggestions. Thanks to Mike Wise, P. Eng. of GeoWise Engineering Ltd. and Terrance Lewis, Ph.D., P. Ag., P.Geo. for their assistance during field assessments of stream crossings and many helpful comments and suggests during report preparation. Special thanks to Dave Carter and Derek Chung, Department of Fisheries and Oceans, for taking time in their busy schedules to attend several site reviews. Thanks also to George Reid, Ministry of Water, Land and Air Protection, for his comments. The fish sampling was conducted by Alisa Mehmal, fisheries technician with Fishfor Contracting, and Shawn Hamilton. Fish and Fish Habitat Impact Assessment of the Knob Hill Wind Farm Project TABLE OF CONTENTS 1. Introduction.........................................................................................................................1 1.1. Assessment Methodology ......................................................................................3 1.1.1. Pre-Field Assessment................................................................................3 1.1.2. Fish and Habitat Sampling........................................................................4 1.1.3. Non fish-bearing Reports..........................................................................6 1.1.4. Cumulative Effects ...................................................................................6 1.2. Knob Hill Wind Farm Area ...................................................................................7 1.3. Access Roads .........................................................................................................8 1.4. Transmission Line..................................................................................................8 2. Existing Fisheries Information..........................................................................................10 2.1. Limitations of Existing Fisheries Data ................................................................10 2.2. RISC Mapping .....................................................................................................11 2.3. Knob Hill Wind Farm Area .................................................................................11 2.4. Access Road.........................................................................................................12 2.4.1. Existing Fisheries Information for Branch NE 62 ..................................13 2.4.2. Existing Fisheries Information for Branch NE 62D ...............................13 2.5. Transmission Line................................................................................................13 2.6. Rare and Endangered Fish Species......................................................................14 3. Results of Field Assessments............................................................................................15 3.1. Knob Hill Wind Farm Area .................................................................................15 3.1.1. Cumulative Effects Related to the Knob Hill Service Roads .................22 3.2. Knob Hill Access Road........................................................................................24 3.2.1. Fisheries Assessment of Route Options..................................................24 3.3. Access Road NE 62D ..........................................................................................26 3.4. Transmission Line................................................................................................33 3.5. Cumulative Effects of the Access Road and the Transmission Line ...................35 3.6. Additional Facilities.............................................................................................35 4. Fisheries Act Approval .....................................................................................................37 Fish and Fish Habitat Impact Assessment of the Knob Hill Wind Farm Project 4.1. Magnitude of Unavoidable Habitat Loss .............................................................37 4.2. Application of DFO Habitat Policies and Guidelines..........................................37 5. General Mitigation and Compensation Strategies ............................................................39 5.1. Instream Fisheries Timing Windows ...................................................................40 5.2. Non fish-bearing Stream Reaches........................................................................41 5.3. Fish Bearing Reaches with no HADD .................................................................42 5.4. Fish Bearing Reaches Where a HADD Cannot be Avoided................................43 6. Mitigation Strategies Related to Each of the Three Project Components.........................44 6.1. Knob Hill Service Roads .....................................................................................44 6.2. Knob Hill Access Road........................................................................................46 6.3. Transmission Line Development .........................................................................48 7. Monitoring ........................................................................................................................50 7.1. Construction Monitoring......................................................................................50 7.2. Post-Construction Effectiveness Monitoring.......................................................50 7.3. Monitoring of Suspended Sediment.....................................................................51 8. References.........................................................................................................................52 9. Appendix 1. RISC Site Card Reports 10. Appendix 2. Fisheries Assessment of Potential Knob Hill Road Access - Branch N.E. 62 and N.E. 62D: April 10 to 11, 2003 11. Appendix 3. Summary of Fish Habitat and Riparian Vegetation for the Knob Hill Service Road Crossings - 2003 12. Appendix 4. Summary of Fish Sampling Results for Knob Hill Access Road - October 29 to 30, 2003 Reconnaissance Level Fish Habitat Assessment of the Knob Hill Wind Farm Project Area 1. INTRODUCTION Sea Breeze Energy Incorporated (“Sea Breeze”) is proposing to construct a wind farm on Knob Hill located on the northern end of Vancouver Island. Although several potential wind farm sites will be assessed during the next few years, the Knob Hill area is the first to be investigated. The Knob Hill Wind Farm Project is comprised of the following three major components: 1) The Knob Hill Wind Farm Area which includes the turbine towers, tower service roads, and substation; 2) The access road from the Holberg mainline road to the wind farm; and 3) The transmission line which connects the Knob Hill substation to the switchyard near Nahwitti Lake. In this report, the term “Project Area” includes all three of the components listed above. The phrase “Wind Farm Area” refers only to component #1. In addition to the three major components, it is anticipated that a concrete batch plant will be established in Holberg. The Knob Hill Project Area is approximately 44.77 km2 in area and is located about 12 km north of Holberg (Figure 1). The Project Area is located on an elevated ridge and is drained by a network of approximately 15 tributaries that flow into the Nahwhitti, Goodspeed and Stranby Rivers. There are also five lakes in the Project Area. The largest of these lakes is approximately 430 m x 80 m. Lake depths are unknown. The Knob Hill Wind Farm Area will eventually contain several hundred towers connected by a network of service roads (Plate 1). These service roads will cross streams draining the Wind Farm Area. It is estimated that approximately 37 stream crossings will need to be constructed. At least some of these streams have been confirmed as fish bearing. In addition, the substation will be constructed at the point where the transmission line leaves the Wind Farm Area (Plate 1). Access to the Knob Hill Wind Farm Area will be via Western Forest Products Limited logging roads NE 62 and NE 62D (Plate 1). These roads cross fish bearing streams at several locations. A bridge on road NE 62 will need to be replaced and new crossing