ATLANTIC COAST PIPELINE, LLC ATLANTIC COAST PIPELINE Docket Nos. CP15-554-000 & CP15-554-001 and DOMINION ENERGY TRANSMISSION, INC. SUPPLY HEADER PROJECT Docket No. CP15-555-000 Implementation Plan Assembled by October 17, 2017 Atlantic Coast Pipeline, LLC and Dominion Energy Transmission, Inc. Docket Nos. CP15-554-000, CP15-554-001, & CP15-555-000 Implementation Plan TABLE OF CONTENTS INTRODUCTION ...........................................................................................................................1 ENVIRONMENTAL CONDITION 1 .............................................................................................4 ENVIRONMENTAL CONDITION 2 .............................................................................................5 ENVIRONMENTAL CONDITION 3 .............................................................................................6 ENVIRONMENTAL CONDITION 4 .............................................................................................7 ENVIRONMENTAL CONDITION 5 .............................................................................................8 ENVIRONMENTAL CONDITION 6 ...........................................................................................10 ENVIRONMENTAL CONDITION 7 ...........................................................................................17 ENVIRONMENTAL CONDITION 8 ...........................................................................................19 ENVIRONMENTAL CONDITION 9 ...........................................................................................21 ENVIRONMENTAL CONDITION 10 .........................................................................................23 ENVIRONMENTAL CONDITION 11 .........................................................................................24 ENVIRONMENTAL CONDITION 12 .........................................................................................25 ENVIRONMENTAL CONDITION 13 .........................................................................................26 ENVIRONMENTAL CONDITION 14 .........................................................................................27 ENVIRONMENTAL CONDITION 15 .........................................................................................28 ENVIRONMENTAL CONDITION 16 .........................................................................................29 ENVIRONMENTAL CONDITION 17 .........................................................................................30 ENVIRONMENTAL CONDITION 18 .........................................................................................31 ENVIRONMENTAL CONDITION 19 .........................................................................................32 ENVIRONMENTAL CONDITION 20 .........................................................................................33 ENVIRONMENTAL CONDITION 21 .........................................................................................34 ENVIRONMENTAL CONDITION 22 .........................................................................................35 ENVIRONMENTAL CONDITION 23 .........................................................................................36 ENVIRONMENTAL CONDITION 24 .........................................................................................37 ENVIRONMENTAL CONDITION 25 .........................................................................................38 ENVIRONMENTAL CONDITION 26 .........................................................................................39 ENVIRONMENTAL CONDITION 27 .........................................................................................40 ENVIRONMENTAL CONDITION 28 .........................................................................................41 ENVIRONMENTAL CONDITION 29 .........................................................................................42 ENVIRONMENTAL CONDITION 30 .........................................................................................43 ENVIRONMENTAL CONDITION 31 .........................................................................................44 ENVIRONMENTAL CONDITION 32 .........................................................................................45 ENVIRONMENTAL CONDITION 33 .........................................................................................46 ENVIRONMENTAL CONDITION 34 .........................................................................................47 ENVIRONMENTAL CONDITION 35 .........................................................................................51 ENVIRONMENTAL CONDITION 36 .........................................................................................52 ENVIRONMENTAL CONDITION 37 .........................................................................................53 ENVIRONMENTAL CONDITION 38 .........................................................................................54 ENVIRONMENTAL CONDITION 39 .........................................................................................55 ENVIRONMENTAL CONDITION 40 .........................................................................................56 ENVIRONMENTAL CONDITION 41 .........................................................................................57 i Atlantic Coast Pipeline, LLC and Dominion Energy Transmission, Inc. Docket Nos. CP15-554-000, CP15-554-001, & CP15-555-000 Implementation Plan ENVIRONMENTAL CONDITION 42 .........................................................................................58 ENVIRONMENTAL CONDITION 43 .........................................................................................59 ENVIRONMENTAL CONDITION 44 .........................................................................................60 ENVIRONMENTAL CONDITION 45 .........................................................................................62 ENVIRONMENTAL CONDITION 46 .........................................................................................63 ENVIRONMENTAL CONDITION 47 .........................................................................................64 ENVIRONMENTAL CONDITION 48 .........................................................................................65 ENVIRONMENTAL CONDITION 49 .........................................................................................66 ENVIRONMENTAL CONDITION 50 .........................................................................................67 ENVIRONMENTAL CONDITION 51 .........................................................................................68 ENVIRONMENTAL CONDITION 52 .........................................................................................75 ENVIRONMENTAL CONDITION 53 .........................................................................................76 ENVIRONMENTAL CONDITION 54 .........................................................................................77 ENVIRONMENTAL CONDITION 55 .........................................................................................78 ENVIRONMENTAL CONDITION 56 .........................................................................................79 ENVIRONMENTAL CONDITION 57 .........................................................................................82 ENVIRONMENTAL CONDITION 58 .........................................................................................83 ENVIRONMENTAL CONDITION 59 .........................................................................................84 ENVIRONMENTAL CONDITION 60 .........................................................................................85 ENVIRONMENTAL CONDITION 61 .........................................................................................86 ENVIRONMENTAL CONDITION 62 .........................................................................................87 ENVIRONMENTAL CONDITION 63 .........................................................................................88 ENVIRONMENTAL CONDITION 64 .........................................................................................89 ENVIRONMENTAL CONDITION 65 .........................................................................................91 ENVIRONMENTAL CONDITION 66 .........................................................................................95 ENVIRONMENTAL CONDITION 67 .........................................................................................96 ENVIRONMENTAL CONDITION 68 .........................................................................................97 ENVIRONMENTAL CONDITION 69 .........................................................................................98 ENVIRONMENTAL CONDITION 70 .........................................................................................99 ENVIRONMENTAL CONDITION 71 .......................................................................................100 ENVIRONMENTAL CONDITION 72 .......................................................................................101 ENVIRONMENTAL CONDITION 73 .......................................................................................102 LIST OF TABLES Table 6-1 Atlantic Coast Pipeline Training Schedule ................................................13 Table 6-2 Supply Header Project Training Schedule .................................................13 Table 6-3