Trans Mountain Response to NEB IR No. 2 NEB IR No. 2.105b – Attachment 1 Drawing Geographic Location RK Proposed Primary Crossing Method Numbers Eastern Alberta Plains Blackmud Creek 24.2 B1 & B2 Isolation (Inside Least Risk Biological Window)(Inside Least Risk Biological Window) (Inside Least Risk Biological Window) Whitemud Creek 28.1 B3 & B4 Isolation (Inside Least Risk Biological Window) North Saskatchewan 33.5 B5 & B6 HDD River Unnamed Creek 90.1 B7 & B8 TBD Sturgeon River 126.8 B9 & B10 Open Cut or Isolation (Inside Least Risk Biological Window) Western Alberta Plains Pembina River 135 B11 & B12 HDD Brule Creek 181.1 B13 & B14 Isolation (Inside Least Risk Biological Window) Lobstick River 185.4 B15 & B16 Isolation (Inside Least Risk Biological Window) Carrot Creek 193.1 B17 & B18 Isolation (Inside Least Risk Biological Window) Wolf Creek 220.6 B19 & B20 HDD McLeod River 223.8 B21 & B22 HDD Bench Creek 1 227.6 B23 & B24 Isolation (Inside Least Risk Biological Window) Little Sundance Creek 245.2 B25 & B26 Isolation (Inside Least Risk Biological Window) Sundance Creek 248 B27 & B28 Isolation (Inside Least Risk Biological Window) Southern Albertan Uplands Unnamed Creek 269.6 B29 & B30 Isolation (Inside Least Risk Biological Window) Maskuta Creek 327.8 B31 & B32 Isolation (Inside Least Risk Biological Window) Rocky Mountains Fraser River 496.8 B33 & B34 HDD Fraser River 499.8 B35 & B36 HDD Rocky Mountain Trench Swift Creek 522.5 B37 & B38 Isolation (Inside Least Risk Biological Window) Columbia Mountains Clemina Creek 559 B39 & B40 Isolation (Inside Least Risk Biological Window) Albreda River 561.1 B41 & B42 Isolation (During Low Flow Period) Albreda River 563.5 B43 & B44 Isolation (During Low Flow Period) Dominion Creek 567.6 B45 & B46 Isolation (During Low Flow Period) Moonbeam Creek 571.9 B47 & B48 Isolation (Inside Least Risk Biological Window) Serpentine Creek 580.4 B49 & B50 Isolation (During Low Flow Period) North Thompson River 581.1 B51 & B52 HDD Miledge Creek 592.9 B53 & B54 Isolation (During Low Flow Period) Thunder River 600.2 B55 & B56 Isolation (During Low Flow Period) Shuswap Blue River 613.8 B57 & B58 HDD North Thompson River 619.9 B59 & B60 HDD Finn Creek 638.8 B61 & B62 Isolation (Inside Least Risk Biological Window) North Thompson River 651.6 B63 & B64 HDD Mad River 683.3 B65 & B66 Isolation (Inside Least Risk Biological Window) Raft River 717.7 B67 & B68 HDD Clearwater River 725.6 B69 & B70 HDD Mann Creek 735.1 B71 & B72 HDD Lemieux Creek 749.3 B73 & B74 Isolation (Inside Least Risk Biological Window) Nehalliston Creek 750.9 B75 & B76 Isolation (Inside Least Risk Biological Window) Eakin Creek 752.3 B77 & B78 Isolation (Inside Least Risk Biological Window) Darlington Creek 768.2 B79 & B80 Isolation (Inside Least Risk Biological Window) Lindquist Creek 768.5 B81 & B82 Isolation (Inside Least Risk Biological Window) Jamieson Creek 820.2 B83 & B84 Isolation (Inside Least Risk Biological Window) Thompson Thompson River 846.8 B85 & B86 HDD Moore Creek 893.2 B87 & B88 Isolation (Inside Least Risk Biological Window) Page 1 of 2 Trans Mountain Response to NEB IR No. 2 Drawing Geographic Location RK Proposed Primary Crossing Method Numbers Clapperton Creek 916.4 B89 & B90 Isolation (Inside Least Risk Biological Window) Nicola River 928.4 B91 & B92 HDD Godey Creek 931.4 B93 & B94 TBD Coldwater River 958.3 B95 & B96 HDD Coldwater River 970.7 B97 & B98 HDD Coldwater River 980.4 B99 & B100 HDD Juliet Creek 981.2 B101 & B102 Isolation (Inside Least Risk Biological Window) Cascade Mountains Coquihalla River 1,022.2 B103 & B104 Isolation (Inside Least Risk Biological Window) Dewdney Creek 1,023.3 B105 & B106 Isolation (Inside Least Risk Biological Window) Coquihalla River 1,026.9 B107 & B108 Isolation (Inside Least Risk Biological Window) Coquihalla River 1,029.0 B109 & B110 Isolation (Inside Least Risk Biological Window) Coquihalla River 1,033.0 B111 & B112 Isolation (Inside Least Risk Biological Window) Coquihalla River 1,043.7 B113 & B114 HDD Silverhope Creek 1,047.7 B115 & B116 Isolation (Inside Least Risk Biological Window) Wahleach Creek 1,061.9 B117 & B118 Isolation (Inside Least Risk Biological Window) Georgia Depression Vedder River 1,102.7 B119 & B120 HDD Salmon River 1,147.8 B121 & B122 Isolation (Inside Least Risk Biological Window) Fraser River 1,169.3 B123 & B124 HDD Page 2 of 2.