Rhode Island Energy Facility Siting Board Environmental Report
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February 2017 RHODE ISLAND ENERGY FACILITY SITING BOARD ENVIRONMENTAL REPORT Burrillville Interconnection Project Burrillville, Rhode Island This document has been reviewed for Critical Energy Infrastructure Information (CEII). [February 2017] Prepared For: The Narragansett Electric Company d/b/a National Grid 280 Melrose Street Providence, RI 02907 and Clear River Energy LLC One South Wacker Drive Suite 1800 Chicago, IL 60608 For Submittal to: State of Rhode Island Energy Facility Siting Board 89 Jefferson Boulevard Warwick, RI 02888 Prepared By: POWER Engineers, Inc. 100 John L. Dietsch Square N. Attleboro, MA 02763 This page intentionally blank Rhode Island Energy Facility Siting Board Application Burrillville Interconnection Project Burrillville, Rhode Island Prepared For: The Narragansett Electric Company d/b/a National Grid 280 Melrose Street, Providence, Rhode Island 02907 and Clear River Energy LLC One South Wacker Drive Suite 1800 Chicago, IL 60606 For Submittal To: State of Rhode Island Energy Facility Siting Board 89 Jefferson Boulevard Warwick, Rhode Island 02888 Prepared By: POWER Engineers, Inc. 100 John L. Dietsch Square N. Attleboro, MA 02763 February 2017 Burrillville Interconnection Project RIEFSB Environmental Report February 2017 This page intentionally blank Burrillville Interconnection Project RIEFSB Environmental Report February 2017 VOLUME 1 – ENVIRONMENTAL REPORT VOLUME 2 – MAPPING VOLUME 3 – APPENDICES TABLE OF CONTENTS 1.0 INTRODUCTION ................................................................................................... 1-1 1.1 PROJECT OVERVIEW .................................................................................................. 1-1 1.2 PROJECT TEAM .......................................................................................................... 1-1 1.3 COMPLIANCE WITH EFSB REQUIREMENTS ............................................................... 1-2 2.0 EXECUTIVE SUMMARY ..................................................................................... 2-1 2.1 INTRODUCTION .......................................................................................................... 2-1 2.2 PROJECT DESCRIPTION AND PROPOSED ACTION ....................................................... 2-1 2.3 PURPOSE AND NEED .................................................................................................. 2-2 2.4 ALTERNATIVES .......................................................................................................... 2-2 2.5 SUMMARY OF ENVIRONMENTAL IMPACTS AND MITIGATION ................................... 2-2 2.6 SUMMARY OF SOCIAL IMPACTS AND MITIGATION.................................................... 2-3 2.6.1 Social and Economic ................................................................................................... 2-3 2.6.2 Land Use ...................................................................................................................... 2-4 2.6.3 Cultural and Historic Resources .................................................................................. 2-4 2.6.4 Visual Resources ......................................................................................................... 2-4 2.6.5 Noise ............................................................................................................................ 2-5 2.6.6 Electric and Magnetic Fields ....................................................................................... 2-5 2.7 CONCLUSION ............................................................................................................. 2-5 3.0 PROJECT NEED .................................................................................................... 3-1 3.1 INTRODUCTION .......................................................................................................... 3-1 3.2 INTERCONNECTION ANALYSES ................................................................................. 3-1 3.3 CONCLUSION ............................................................................................................. 3-1 4.0 PROJECT DESCRIPTION AND PROPOSED ACTION .................................. 4-1 4.1 INTRODUCTION .......................................................................................................... 4-1 4.1.1 Segment 1 - 0.8 mile on CREC ROW ......................................................................... 4-1 4.1.2 Segment 2 - 1.6 Miles on TNEC ROW ....................................................................... 4-1 4.1.3 Segment 3 - 4.4 Miles on TNEC ROW ....................................................................... 4-2 4.1.4 Upgrades to Sherman Road Switching Station ............................................................ 4-2 4.2 CONSTRUCTION AND MAINTENANCE PLAN OVERVIEW ........................................... 4-2 4.2.1 Transmission Line Construction Sequence ................................................................. 4-2 4.2.2 Project Construction Traffic ........................................................................................ 4-8 4.2.3 Project Construction Work Hours ............................................................................... 4-8 4.2.4 Environmental Compliance and Monitoring ............................................................... 4-8 4.2.5 ROW Vegetation Maintenance .................................................................................... 4-9 4.3 SAFETY AND PUBLIC HEALTH CONSIDERATIONS ..................................................... 4-9 4.4 HAZARDOUS SUBSTANCES ...................................................................................... 4-10 4.4.1 Sherman Road Switching Station .............................................................................. 4-10 4.4.2 Transmission Line ..................................................................................................... 4-10 4.5 PROJECT COMMUNITY OUTREACH .......................................................................... 4-10 4.5.1 Neighborhood Outreach ............................................................................................ 4-11 PHX (170-008) NATIONAL GRID (02/14/2017) 142704 GG PAGE i Burrillville Interconnection Project RIEFSB Environmental Report February 2017 4.5.2 Open House ............................................................................................................... 4-11 4.5.3 Project Website .......................................................................................................... 4-12 4.5.4 Project Hotline ........................................................................................................... 4-12 4.5.5 Construction Outreach ............................................................................................... 4-12 4.5.6 Estimated Project Costs ............................................................................................. 4-12 4.6 PROJECT SCHEDULE ................................................................................................ 4-13 5.0 PROJECT ALTERNATIVES ................................................................................ 5-1 5.1 INTRODUCTION .......................................................................................................... 5-1 5.2 NO-ACTION ALTERNATIVE ....................................................................................... 5-1 5.3 ELECTRICAL ALTERNATIVES ..................................................................................... 5-1 5.3.1 Connection to Existing Transmission Lines ................................................................ 5-1 5.3.2 115 kV Alternative ...................................................................................................... 5-1 5.4 OVERHEAD ROUTE ALTERNATIVES .......................................................................... 5-2 5.4.1 Construct Overhead Transmission Line in Project ROW (Proposed Option) ............. 5-2 5.4.2 Overhead Transmission Line Adjacent to Algonquin Gas Transmission Pipeline ROW ........................................................................................................... 5-2 5.5 OVERHEAD CONFIGURATION ALTERNATIVES .......................................................... 5-3 5.5.1 Construction Using Combination of H-Frame Structures and Monopoles (the Proposed Project) ............................................................................................... 5-3 5.5.2 Construction Using Monopole Structures ................................................................... 5-3 5.5.3 Construction Using Double-Circuit Monopole Structures .......................................... 5-3 5.6 UNDERGROUND TRANSMISSION ALTERNATIVES ...................................................... 5-5 5.6.1 Underground Transmission Routes ............................................................................. 5-5 5.6.2 Underground Cable Design and Construction ............................................................. 5-7 5.6.3 Underground Alternative Cost..................................................................................... 5-9 5.6.4 Environmental and Other Considerations .................................................................... 5-9 5.6.5 Underground Operational Issues ............................................................................... 5-10 5.6.6 Underground Dips ....................................................................................................