Mountain Valley Pipeline Project State of WV Application for Individual 401 Water Quality Certification for Non Coal Related Activity Prepared for: Mountain Valley Pipeline, Inc. 555 Southpointe Boulevard, Suite 200 Canonsburg, Pennsylvania 15317 Prepared by: Tetra Tech, Inc. 661 Anderson Drive Pittsburgh, Pennsylvania 15220 (412) 921-7090 Fax (412) 921-4040 Submitted to: WV Department of Environmental Protection Division of Water and Waste Management 401 Certification Program 601 57th Street SE Charleston, WV 25304 December 2016 Mountain Valley Pipeline Project 401 Certification Application – WV December 2016 TABLE OF CONTENTS Section Page TABLE OF CONTENTS.................................................................................................................................... i LIST OF FIGURES...........................................................................................................................................iii LIST OF TABLES.............................................................................................................................................iii LIST OF DRAWINGS.......................................................................................................................................iii LIST OF APPENDICES ...................................................................................................................................iv 1.0 INTRODUCTION................................................................................................................................. 1 2.0 STATE OF WEST VIRGINIA APPLICATION FOR 401 WATER QUALITY CERTIFICATION FOR NON COAL RELATED ACTIVITY ...................................................................................................... 2 3.0 GENERAL PROJECT INFORMATION............................................................................................... 3 3.1 Project Description ................................................................................................................. 3 3.1.1 Pipeline Construction Description .......................................................................................... 3 3.1.2 Wetland and Waterbody Crossings in ATWS ........................................................................ 4 3.1.3 Wetland and Waterbody Crossings on Access Roads .......................................................... 4 3.1.3.1 Permanent Access Roads in Good Condition ....................................................................... 4 3.1.3.2 Permanent Access Roads Requiring Widening or Grading................................................... 5 3.1.3.3 Temporary Access Roads...................................................................................................... 5 3.2 Project Purpose...................................................................................................................... 5 3.3 Project Coordinates................................................................................................................ 6 3.4 Directions To Site................................................................................................................... 6 3.5 Federal Energy Regulatory Commission (FERC) Documents .............................................. 7 3.6 Public Notice Project Description........................................................................................... 7 4.0 NO PRACTICAL ALTERNATIVE DEMONSTRATION ....................................................................... 8 4.1 No Action Alternative.............................................................................................................. 8 4.2 Route Alternatives Analysis ................................................................................................... 9 4.2.1 Route Alternative 1................................................................................................................. 9 4.2.2 The Modified Route Alternative 1........................................................................................... 9 4.2.3 The Hybrid Alternative 1/Proposed Route ............................................................................. 9 4.2.4 The Northern Pipeline Alternative ........................................................................................ 10 4.2.5 The Dominion Supply Header Pipeline Alternative.............................................................. 10 4.2.6 The East Tennessee Natural Gas (ETNG) Alternative ........................................................ 11 4.2.7 Proposed Route Minor Modifications................................................................................... 11 5.0 WETLAND DELINEATION AND WATERS OF THE U.S. SURVEY ................................................ 12 5.1 Introduction .......................................................................................................................... 12 5.2 Methods ............................................................................................................................... 12 5.2.1 Field Delineated Wetlands and Streams.............................................................................. 12 5.2.2 Desktop Evaluated Wetlands and Streams ......................................................................... 13 5.3 Field Surveyed Wetlands and Streams Summary............................................................... 14 5.3.1 Field Surveyed Wetlands and Streams Findings................................................................. 14 5.3.2 Field Surveyed Wetlands and Streams Impacts.................................................................. 14 5.4 Desktop Evaluation of Unsurveyed Areas Summary........................................................... 17 5.4.1 Desktop Evaluation of Unsurveyed Areas Findings............................................................. 17 5.4.2 Desktop Evaluation of Unsurveyed Areas Impacts.............................................................. 17 5.5 Wetland Functions and Values ............................................................................................ 17 5.6 Sensitive Stream Resources................................................................................................ 23 5.6.1 National Wild and Scenic Rivers Evaluation....................................................................... 23 5.6.2 WV Natural Stream Preservation Act.................................................................................. 23 5.6.3 Tier 3 Protection.................................................................................................................. 23 Tetra Tech Page i Mountain Valley Pipeline Project 401 Certification Application – WV December 2016 5.6.4 Category B-2 Trout Waters ................................................................................................. 23 5.6.5 Warm Water Fishery ........................................................................................................... 23 5.6.6 Freshwater Mussels............................................................................................................ 24 6.0 RESTORATION PLANS ................................................................................................................... 25 6.1 Wetland Restoration............................................................................................................. 25 6.2 Stream Restoration .............................................................................................................. 25 7.0 MITIGATION/COMPENSATION PLAN ............................................................................................ 27 7.1 Field Surveyed Wetland and Stream Mitigation................................................................... 27 7.1.1 Wetlands .............................................................................................................................. 27 7.1.2 Streams................................................................................................................................ 28 7.2 Desktop Surveyed Wetland and Stream Mitigation ............................................................. 28 7.2.1 Wetlands .............................................................................................................................. 28 7.2.2 Streams................................................................................................................................ 28 8.0 WV 401 WATER QUALITY CERTIFICATION CONDITION COMPLIANCE.................................... 29 8.1 WV 401 Water Quality Certification Special Conditions ...................................................... 29 8.2 WV 401 Water Quality Certification Standard Conditions.................................................... 30 9.0 REFERENCES.................................................................................................................................. 32 Tetra Tech Page ii Mountain Valley Pipeline Project 401 Certification Application – WV December 2016 LIST OF FIGURES Figures Figures 1-1 to 1-41 USGS Project Location Map Figure 2 Route Alternative 1 and Hybrid Alternative 1/Proposed Route Figure 3 Northern Pipeline Alternative Figure 4 Supply Header Collocation Alternative Figure 5 ETNG Alternative Figures 6-1 to 6-538 Detail Maps LIST OF TABLES Tables Table 1 Counties and Towns Crossed by Project Table 2 HUC 8 Watersheds in Project Area Table 3 Public Notice Publication List Table 4.1