Results you can rely on New York Linear Construction Project Report Spectra Energy NJ-NY Expansion Project Prepared for: 890 Winter Street Suite 300 Waltham, MA 02451 Prepared by: TRC Environmental Corporation 57 East Willow Street Millburn, New Jersey 07041 February 2014 TABLE OF CONTENTS Section Page 1.0 INTRODUCTION ............................................................................................................................. 4 1.1 PROJECT DESCRIPTION AND BACKGROUND .................................................................................................. 4 1.2 ENVIRONMENTAL IMPACTS AND MITIGATION .............................................................................................. 5 2.0 PRE-CONSTRUCTION DUE DILIGENCE .................................................................................. 7 2.1 PROJECT AREA DESCRIPTION .................................................................................................................... 7 2.1.1 Topography ......................................................................................................................... 7 2.1.2 Surface Water ..................................................................................................................... 7 2.1.3 Regional Geology ................................................................................................................ 8 2.1.4 Project Geology ................................................................................................................... 8 2.1.5 Hydrogeology ...................................................................................................................... 9 2.2 PROJECT AREA HISTORY .......................................................................................................................... 9 2.2.1 Past Uses and Ownership.................................................................................................... 9 2.2.2 EDR Database Search ........................................................................................................ 10 2.2.3 Historical Aerial Photographs and Sanborn Fire Insurance Maps ..................................... 10 2.2.4 NYSDEC File Review ........................................................................................................... 10 2.3 IDENTIFIED CONTAMINATED PROPERTIES .................................................................................................. 11 2.3.1 Database ........................................................................................................................... 11 2.3.2 Contaminated Site Summaries .......................................................................................... 11 3.0 PRE-CONSTRUCTION SAMPLING .......................................................................................... 13 3.1 PRE‐CHARACTERIZATION SOIL SAMPLING PLAN .......................................................................................... 13 3.2 PRE‐CHARACTERIZATION SOIL SAMPLING.................................................................................................. 13 3.3 WASTE CLASSIFICAITON SAMPLING.......................................................................................................... 14 3.3.1 Findings ............................................................................................................................. 15 3.3.1.1 Contaminated Sites ......................................................................................................... 15 3.3.1.2 Hazardous Materials ........................................................................................................ 15 3.4 GROUNDWATER................................................................................................................................... 15 3.4.1 Sampling Plan ................................................................................................................... 15 3.4.2 Aquifer Testing .................................................................................................................. 16 3.4.2.1 Findings ............................................................................................................................ 16 3.5 GOVERNING DOCUMENTS ..................................................................................................................... 16 3.5.1 Health and Safety Plan...................................................................................................... 16 3.5.2 Excavation Management Plan .......................................................................................... 17 3.5.3 Soil Management Plan ...................................................................................................... 17 3.6 PERMITS ............................................................................................................................................. 19 3.6.1 Groundwater ..................................................................................................................... 19 4.0 CONSTRUCTION .......................................................................................................................... 20 4.1 TRENCHING ......................................................................................................................................... 20 4.2 HDDS ................................................................................................................................................ 20 4.3 BACKFILLING ....................................................................................................................................... 21 4.4 CLEANING AND HYDROSTATIC TESTING ..................................................................................................... 21 4.5 DISCHARGE OF HYDROSTATIC TEST WATER ............................................................................................... 21 4.6 WASTE MANAGEMENT ......................................................................................................................... 22 4.6.1 Soil .................................................................................................................................... 22 4.6.2 Description of Disposal Facilities ....................................................................................... 23 4.6.3 Waste Characterization and Soil Disposal ........................................................................ 24 Linear Construction Project Report i New Jersey-New York Expansion Project 4.6.4 Description of Disposed Wastes ........................................................................................ 25 4.6.5 Stockpiling/Temporary Storage ........................................................................................ 26 4.6.6 Groundwater ..................................................................................................................... 26 4.6.6.1 Discharge Locations ......................................................................................................... 26 4.6.6.2 Permit Modifications ....................................................................................................... 27 4.6.6.3 Receiving Facilities ........................................................................................................... 27 4.6.7 Product .............................................................................................................................. 27 4.6.7.1 Plugs ................................................................................................................................ 28 4.7 CLEAN FILL ......................................................................................................................................... 28 4.7.1 Sources .............................................................................................................................. 30 4.7.2 Due Diligence and Sampling Results ................................................................................. 30 4.8 SITE RESTORATION/CAPPING ................................................................................................................. 31 4.9 WELL CLOSURES .................................................................................................................................. 31 4.10 REPORTED SPILLS AND REMEDIATION ....................................................................................................... 31 Linear Construction Project Report ii New Jersey-New York Expansion Project LIST OF TABLES Table 1 Contaminated Sites Table 2 Estimated Groundwater Infiltration Rates Table 3 Approved Surface Water Discharge Locations Table 4 Summary of Soil Disposal by Property LIST OF FIGURES Figure 1 Project Overview Map Figure 2 Topographic Map of Project Area Figure 3 Geologic Map of Project Area Figure 4 Surficial Geology Map of Project Area Figure 5 Areas of Product from Reviewed NYSDEC Files Figure 6 Historic Structures, USTs, and ASTs from Reviewed NYSDEC Files Figure 7 Pre-Characterization Soil Boring and Temporary Monitoring Well Locations Figure 8 Areas of Product Figure 9 Approved Surface Water Discharge Locations LIST OF APPENDICES Appendix A Contaminated Site Summary Tables Appendix B Soil Boring Logs Appendix C Soil Laboratory Analytical Results Appendix D Groundwater Laboratory Analytical Results Appendix E Estimated Groundwater Infiltration Rates Calculations Appendix