ENVIRONMENTAL PLANS VOLUME 7 RESOURCE-SPECIFIC MITIGATION TABLES SPREAD 7: KP 1144.90 TO KP 1180.10 FOR THE TRANS MOUNTAIN PIPELINE ULC TRANS MOUNTAIN EXPANSION PROJECT

CER CONDITION 72

October 2019 REV 6 687945 01-13283-S7-M000-EV-PLN-0001

Prepared for:

Trans Mountain Pipeline ULC Trans Mountain Corporation Suite 2700, 300 – 5th Avenue S.W. Calgary, Alberta T2P 5J2 Ph: 403-514-6400

TABLE OF CONTENTS LIST OF TABLES Page Page Table 1.2-1 Agricultural Operations in British Columbia ...... 5 INTRODUCTION ...... 4 Table 2.0-2 Heritage Resources in British Columbia ...... 6 1.0 SOCIO-ECONOMICS AND AGRICULTURE ...... 5 Table 3.0-2 Traditional Land and Resource Use Features in British Columbia ...... 7 1.1 Parks and Protected Areas ...... 5 Table 3.0-3 Stó:Lō Nation Traditional Land and Resource Use Features ...... 8 Table 3.0-4 Stó:Lō Nation Traditional Land and Resource Use Features Note Package ...... 9 1.2 Agricultural Operations ...... 5 Table 4.1-2 Wildlife Habitat Features in British Columbia...... 15 1.3 Biosecurity ...... 5 Table 4.2-2a Provincially-Identified Wildlife Areas and ECCC Migratory Bird Nesting Zones in 1.4 Candidate Access Management ...... 5 British Columbia ...... 17 2.0 HERITAGE RESOURCES AND PALAEONTOLOGY ...... 6 Table 4.3-6 Final Critical Habitat for Pacific Water Shrew (ECCC) ...... 19 3.0 TRADITIONAL LAND AND RESOURCE USE ...... 7 Table 4.3-9 Proposed Critical Habitat for Western Painted Turtle (ECCC) ...... 20 Table 4.3-10a Candidate Critical Habitat for Barn Owl (ECCC) ...... 21 4.0 WILDLIFE AND WILDLIFE HABITAT ...... 15 Table 4.3-12a Early Draft Critical Habitat for Western Screech-Owl (ECCC) ...... 22 4.1 Wildlife Features ...... 15 Table 4.3-13 Early Draft Critical Habitat for Oregon Spotted Frog (ECCC)...... 23 4.2 Provincially-Identified Wildlife Habitat Areas ...... 17 Table 4.4-1 Wildlife and Wildlife Habitat Environmental Protection Measures ...... 24 4.3 Wildlife Critical Habitat as identified by ECCC ...... 18 Table 5.1-2 Summary of Rare Plants and Rare Ecological Communities in British Columbia ...... 25 4.4 Wildlife and Wildlife Habitat Environmental Protection Measures ...... 24 Table 5.3-2 High Weed Density Areas in BC ...... 26 4.5 Wildlife and Wildlife Habitat on Federal Lands ...... 24 Table 6.0-2 Summary of Wetlands Encountered in British Columbia ...... 27 Table 7.1-2 Summary of Watercourses Identified in British Columbia ...... 28 5.0 VEGETATION ...... 25 Table 7.2-1 Summary of Groundwater Features ...... 36 5.1 Rare Plants and Rare Ecological Communities ...... 25 Table 7.3-2 Summary of Water Wells in British Columbia ...... 37 5.2 Old Growth Management Areas ...... 26 Table 8.1-2 Summary of Soil Characteristics in British Columbia ...... 38 5.3 High Weed Density Areas ...... 26 Table 8.3-2 List of Potential Moderate and High Contamination Areas in British Columbia...... 43 5.4 Cryptogamic Crust Salvage Areas ...... 26 Table 10.1-3 Coarse Woody Debris Target Volumes for Watercourses in BC ...... 45 Table 10.1-4 Coarse Woody Debris Target Volumes for Wetlands in British Columbia ...... 47 6.0 WETLANDS ...... 27 Table 10.1-5 Coarse Woody Debris Target Volumes for Wildlife Habitat ...... 47 7.0 WATERCOURSES/HYDROLOGY ...... 28 7.1 Watercourses ...... 28 7.2 Hydrology ...... 36 7.3 Water Wells ...... 37 8.0 SOILS/GEOLOGY ...... 38 8.1 Soils ...... 38 8.2 Geology ...... 43 8.3 Contamination ...... 43 9.0 RECLAMATION ...... 44 9.1 Reclamation Unit 1 ...... 44 9.2 Reclamation Unit 2 ...... 44 9.3 Reclamation Unit 3 ...... 44 9.4 Reclamation Unit 4 ...... 44 9.5 Reclamation Unit 5 ...... 44 9.6 Reclamation Unit 6 ...... 44 9.7 Reclamation Unit 7 ...... 44 10.0 COARSE WOODY DEBRIS VOLUMES ...... 45

TABLES NOT INCLUDED

The following Tables from the Resource-Specific Mitigation Tables Package are not included in this spread-specific document as they are not relevant to Spread 7.

Table 1.1-1 Parks and Protected Areas in Alberta and British Columbia Table 1.3-1 Biosecurity Concerns in Alberta and British Columbia Table 1.4-1 Candidate Access Management in Alberta Table 1.4-2 Candidate Access Management in British Columbia Table 2.0-1 Heritage Resource Features in Alberta Table 2.0-3 Paleontology Features in Alberta Table 3.0-1 Traditional Land and Resource Use Features in Alberta Table 4.1-1 Wildlife Habitat Features in Alberta Table 4.2-1 Provincially Identified Wildlife Areas and ECCC Migratory Bird Nesting Zones in Alberta Table 4.2-2B Site-Specific Habitat Features for Spotted Owl in the Sowaqua Spotted Owl Wildlife Habitat Area (2-498) Table 4.3-1A Final Critical Habitat for Lewis’s Woodpecker (ECCC) Table 4.3-1B Identified Site-Specific Biophysical Attributes of Critical Habitat for Lewis’s Woodpecker Table 4.3-2 Final Critical Habitat for Great Basin Spadefoot (ECCC) Table 4.3-3A Final Critical Habitat for Williamson’s Sapsucker (ECCC) Table 4.3-3B Identified Site-Specific Biophysical Attributes of Critical Habitat for Williamson’s Sapsucker Table 4.3-4 Final Critical Habitat for Oregon Forestsnail (ECCC) Table 4.3-5 Final Critical Habitat for Coastal Giant Salamander(ECCC) Table 4.3-6 Final Critical Habitat for Pacific Water Shrew (ECCC) Table 4.3-7 Final Critical Habitat for Townsend Mole (ECCC) Table 4.3-8A Proposed Critical Habitat for Western Rattlesnake and Great Basin Gophersnake (ECCC) Table 4.3-8B Identified Site-Specific Biophyiscal Attributes of Critical Habitat for Western Rattlesnake and Great Basin Gophersnake Table 4.3-10B Identified Site-Specific Biophysical Attributes of Critical Habitat for Barn Owl Table 4.3-11 Early Draft Critical Habitat for American Badger (ECCC) Table 4.3-12B Identified Site-Specific Biophysical Attributes of Critical Habitat for Western Screech-Owl Table 4.5 Wildlife Mitigation on Federal Lands (Indian Reserves) Crossed by the Project Table 5.1-1 Summary of Rare Plants and Rare Ecological Communities in Alberta Table 5.2-1 Summary of all OGMA Impacts Requiring Replacement under BC Legislation and Regulation Table 5.2-2 Summary of all OGMA Impacts Requiring Replacement Under CER Condition 76 (No Net Loss of OGMAs) Table 5.3-1 High Weed Density Areas in Alberta Table 5.4-1 Cryptogamic Crust Salvage Areas in British Columbia Table 6.0-1 Summary of Wetlands Encountered in Alberta Table 7.1-1 Summary of Watercourses Identified in Alberta Table 7.3-1 Summary of Water Wells in Alberta Table 8.1-1 Summary of Soil Characteristics in Alberta Table 8.2-1 Summary of Acid Rock Drainage Areas in British Columbia Table 8.2-2 Summary of Bedrock Areas in British Columbia Table 8.3-1 List of Potential Moderate and High Contamination Areas in Alberta Table 10.1-1 Coarse Woody Debris Target Volumes for Watercourses in Alberta Table 10.1-2 Coarse Woody Debris Target Volumes for Wetlands in Alberta

INTRODUCTION These Resource-Specific Mitigation Tables (RSMTs) (Volume 7 of the Environmental Plans) have been developed to communicate the locations of environmental and socio-economic features found along the pipeline route and displayed in the Environmental Alignment Sheets (EAS), as well as providing site-specific mitigation measures. General mitigation measures are included in the Environmental Alignment Sheet Notes (EAS Notes), as well as in the Pipeline Environmental Protection Plan (Pipeline EPP, Volume 2 of the Environmental Plans). These RSMTs are to be used during construction and reclamation of the Trans Mountain Expansion Project (TMEP or the Project) and serve as a guide to avoid or reduce potential adverse environmental effects. This draft version (Revision 6; released October 2019) is the most current and complete version of the RSMTs. The information incorporated into these Environmental Plans has been derived from detailed engineering design and construction execution planning, results from ongoing biophysical and cultural surveys, continuing consultation, the Canada Energy Regulator (CER) (formerly the National Energy Board [NEB]) regulatory review process and other permitting requirements. All Universal Transverse Mercator (UTM) coordinates listed in this these RSMTs are in North American Datum 1983 (NAD 83).

The RSMTs are comprised of the following Sections.

• Section 1.0 Socio-Economics and Agriculture provides approximate locations and details for socio-economic features (e.g., Wabamun Lake Provincial Park), agricultural features and biosecurity concerns found on or in the vicinity of the Project Footprint and candidate locations for access management. • Section 2.0 Heritage Resources and Paleontology provides approximate locations (buffered) for heritage and paleontological features. • Section 3.0 Traditional Land and Resource Use provides approximate locations (buffered) and mitigation measures for Traditional Land and Resource Use (TLRU) features that are being considered in ongoing discussions with applicable regulators and communities. • Section 4.0 Wildlife and Wildlife Habitat provides locations and site-specific mitigation measures for wildlife features and habitat areas, as well as information on timing restrictions (where applicable), recommended setback distances as well as identified species at risk. • Section 5.0 Vegetation provides locations and site-specific mitigation measures for rare plant and rare ecological communities, locations and details for Old Growth Management Areas (OGMAs), as well as areas with high density weeds. • Section 6.0 Wetlands provides locations and site-specific reclamation for wetland features. This section also includes information on wetland class, area of wetland in the Project Footprint and other pertinent information. • Section 7.0 Watercourses/Hydrology provides location and names of watercourses crossed by the pipeline route. This section also includes information on watercourse class, sensitivity rating, water quality monitoring (WQM) requirement, fish presence, Least Risk Biological Window, pipeline and vehicle crossing methods, riparian reserve zone and other pertinent information to watercourses. This section also includes information on location and mitigation measures for groundwater features and water wells identified in the vicinity of the Project. • Section 8.0 Soils/Geology/Contamination provides locations and details on soil types encountered and their characteristics and locations with potential for acid-generating rock. Moderate and high potential contaminated sites and sites with confirmed contamination are included in this section • Section 9.0 Reclamation provides locations and details of the reclamation units including corresponding Biogeoclimatic (BCG), subzones, and descriptions of land use and setting as well as recommended seed mixes. • Section 10.0 Coarse Woody Debris Volumes provides locations and volumes for the placement of coarse woody debris (CWD) following construction.

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1.0 SOCIO-ECONOMICS AND AGRICULTURE 1.1 Parks and Protected Areas Reclamation measures for BC Parks can be found in the British Columbia Parks Reclamation Plan (Section 9.1 of Volume 6 of the Environmental Plans).

1.2 Agricultural Operations Detailed information for the agricultural operations impacted by the Project can be found in Table 1.2-1. Refer to the Agricultural Management section of the Biosecurity Management Plan (Appendix G of the Pipeline EPP), as well as Section 7.0 of the Pipeline EPP (Volume 2 of the Environmental Plans) for mitigation measures to be implemented at agricultural operations. Refer to the Line List for site-specific landowner requests related to agricultural operations.

TABLE 1.2-1

AGRICULTURAL OPERATIONS IN BRITISH COLUMBIA

Area Disturbed by Area Disturbed by Tract # Parcel ID Agricultural Operation UTM1 KP Start KP End Easement (ha) Project Footprint (ha) Site-Specific Mitigation 2701 6154531 Nursery 10U 528873E 5444668N 1147.00 1147.08 0.15 0.19 Maintaining water lines, adhere to site-specific biosecurity protocols and ensure continued access is maintained to container beds during construction as needed. Notify the landowner in advance of construction to allow for the relocation and re-establishment of production systems. If production systems cannot be maintained during construction, ensure provisional systems (i.e. water lines) are put in place as necessary. Ensure irrigation, drainage, nursery beds and access are re-established following construction. 2708 9233296 Blueberries 10U 528370E 5444823N 1147.52 1147.63 0.21 0.47 Refer to the Line List and special conditions in the landowner agreement for site-specific requirements. Detailed mitigation measures have been developed for these farms and are included in the landowner agreement that must be reviewed prior to accessing these lands and commencing construction activities. Note: 1 UTM Coordinates correspond to the centre point of the feature along the centreline. Source: McTavish Resource and Management Consultants Ltd. 2016. Prepared for Trans Mountain Pipeline ULC. Calgary, AB.

1.3 Biosecurity Locations where biosecurity measures are implemented will be determined in consideration of landowner input, existing land use and the presence of site-specific environmental considerations (e.g., soil pathogens, organic farm lands, dairy operations, berry farms, high density weed areas, provincial park boundaries). These locations will be documented and made accessible to contractors and the CER in the Project permit binder.

1.4 Candidate Access Management Adhere to the General Pipeline Construction Mitigation Measures found in Section 7.0 and mitigation found in Section 9 – Access Roads for Pipelines of the Pipeline EPP (Volume 2 of the Environmental Plans) and the Access Management section (Appendix G of the Pipeline EPP). When comparing the candidate access management locations with the EAS (Volume 8 of the Environmental Plans), it is important to remember that the EAS map face has a limited view to the area directly around the pipeline right-of-way; therefore, not all locations with Candidate Access Management points on the temporary access roads appear on the map.

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2.0 HERITAGE RESOURCES AND PALAEONTOLOGY A list of heritage resource features encountered can be found in Table 2.0-2. In the event suspected heritage resource or palaeontology sites are discovered during construction, suspend work immediately in the vicinity (i.e., within 30 m) of any newly identified archaeological, palaeontological or historical resource sites (e.g., modified bone, pottery fragments, fossils) and implement Heritage Resources Discovery Contingency Plan (see Appendix B of the Pipeline EPP). Site-specific mitigation will be confirmed through review and approval by the Appropriate Government Authority.

TABLE 2.0-2

HERITAGE RESOURCES IN BRITISH COLUMBIA

Borden Number / Feature ID PNG Notation Buffered UTM Start Buffered UTM End Buffered KP Start Buffered KP End Site-Specific Recommendation DhRp-67 AB 020-I / 092-G-02, B 019-I / 029-G-02 10U 527905E 5447072N 10U 527600E 5447292N 1150.87 1151.32 Contact Langley Heritage Society or Township of Langley for management recommendations. DhRq-103 B 028-J / 092-G-02 10U 520345E 5447972N 10U 520156E 5448114N 1158.92 1159.16 Pending issuance of HCA Site Alteration permit DhRq-85 BC 028-J / 092-G-02; AD 029-J / 092-G-02 10U 520052E 5448200N 10U 519853E 5448342N 1159.29 1159.54 HCA Permit 2017-0180: No further work. DhRq-34 A 076-K / 092-G-02; AB 075-K / 092-G-02; 10U 513647E 5452332N 10U 513569E 5452559N 1167.60 1167.84 Based on current design plans (HDD methods), site is not in conflict. Any changes to design plans should be reviewed CD 065-K / 092-G-02; D 066-K / 092-G-02 by a qualified archaeologist. DhRr-414 B 092-L / 092-G-02 10U 507515E 5454515N 10U 507321E 5454628N 1175.27 1175.49 Pending issuance of HCA Site Alteration permit Note: HCA = Heritage Conservation Act HDD = Horizontal Directional Drill Sources: British Columbia Ministry of Natural Gas Development – Petroleum and Natural Gas Titles. Petroleum and Natural Gas Grid Unit. British Columbia Ministry of Forests, Lands, Natural Resource Operations and Rural Development (BC MFLNRORD), Provincial Heritage Register.

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3.0 TRADITIONAL LAND AND RESOURCE USE A list of TLRU, and Traditional Land Use (TLU) features encountered can be found in Table 3.0-2. Implement the contingency measures identified in the Traditional Land Use Sites Discovery Contingency Plan (see Appendix B of the Pipeline EPP) in the event TLU sites not previously identified are encountered during construction. Contact the Environmental Inspector and the Indigenous Monitor when working in TLU, and TLRU areas.

TABLE 3.0-2

TRADITIONAL LAND AND RESOURCE USE FEATURES IN BRITISH COLUMBIA

Feature ID PNG Notation Buffered UTM Start Buffered UTM End Buffered KP Start Buffered KP End Description Site-Specific Recommendation TLU-50 C-040-J/092-G-02 to D-031-K/092-G-02 10U 518213E 5449544N 10U 518091E 5449646N 1161.63 1161.83 Plant Gathering Site Review the location of the traditional plant gathering site prior to construction activities to determine whether the site will be impacted. TLU-51 D-055-K/092-G-02 to C-055-K/092-G-02 10U 514090E 5451314N 10U 513969E 5451432N 1166.43 1166.64 If the site will be impacted, notify the affected Indigenous group a minimum of 4 weeks prior to construction and provide the opportunity to harvest traditional plants. TLU-52 C-065-K/092-G-02 10U 513701E 5452204N 10U 513694E 5452219N 1167.46 1167.52 Plant Gathering Site Island in the middle of Fraser River avoided by trenchless crossing. TLU-53 D-080-K/092-G-02 10U 509884E 5453061N 10U 509798E 5453232N 1172.28 1172.45 Plant Gathering Site Review the location of the traditional plant gathering site prior to construction activities to determine whether the site will be impacted. If the site will be impacted, notify the affected Indigenous group a minimum of 4 weeks prior to construction and provide the opportunity to harvest traditional plants. Sources: TERA Environmental Consultants. 2013. Traditional Land and Resource Use Technical Report for the Trans Mountain Pipeline ULC, Volume 5D of the Application. Prepared for Trans Mountain Pipeline ULC. Calgary, AB. CH2M HILL Energy Canada, Ltd. 2014. Supplemental Traditional Land and Resource Use Technical Report for the Trans Mountain Pipeline ULC. Prepared for Trans Mountain Pipeline ULC. Calgary, AB. CH2M HILL Energy Canada, Ltd. 2014. Supplemental Traditional Land and Resource Use Technical Report No. 2 for the Trans Mountain Pipeline ULC. Prepared for Trans Mountain Pipeline ULC. Calgary, AB. CH2M HILL Energy Canada, Ltd. 2015. Supplemental Traditional Land and Resource Use Technical Report No. 3 for the Trans Mountain Pipeline ULC. Prepared for Trans Mountain Pipeline ULC. Calgary, AB. CH2M HILL Energy Canada, Ltd. 2015. Supplemental Traditional Land and Resource Use Technical Report No. 4 for the Trans Mountain Pipeline ULC. Prepared for Trans Mountain Pipeline ULC. Calgary, AB. CH2M HILL Energy Canada, Ltd. 2015.

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TABLE 3.0-3

STÓ:LŌ NATION TRADITIONAL LAND AND RESOURCE USE FEATURES

Site-Specific Mitigation Stó:lö Site ID KP Start KP End UTM Start UTM End Description Site Description (see Table 3.0-4) Comments STÓ:LÖ-AQ58 1144.91 1145.23 10U 530879E 5444091N 10U 530562E 5444120N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ58 1145.44 1145.95 10U 530353E 5444147N 10U 529893E 5444301N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-1472 1146.38 1146.38 10U 529505E 5444493N 10U 529504E 5444494N Travel Way Documented travel way Notes 1, 7 STÓ:LÖ-AQ58 1146.39 1146.89 10U 529498E 5444497N 10U 529017E 5444619N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-347 1146.50 1146.54 10U 529377E 5444503N 10U 529343E 5444514N Travel Way Documented travel way Notes 1, 7 STÓ:LÖ-AQ58 1147.78 1148.02 10U 528175E 5444899N 10U 527949E 5444995N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ59 1147.93 1148.12 10U 528038E 5444958N 10U 527857E 5445035N Aquifer Aquifer Notes 1, 11, 12 *STÓ:LÖ-AQ60 1148.29 1149.13 10U 527700E 5445102N 10U 528002E 5445618N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ59 1148.76 1149.44 10U 527660E 5445550N 10U 527899E 5447184N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ58 1148.76 1150.99 10U 527660E 5445550N 10U 528070E 5445813N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-1614 1150.85 1150.85 10U 527900E 5447056N 10U 527900E 5447057N Travel Way GIS-modelled travel way Notes 1, 7 STÓ:LÖ-AQ58 1151.05 1151.47 10U 527897E 5447251N 10U 527497E 5447335N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-1614 1152.02 1152.02 10U 526966E 5447470N 10U 526963E 5447471N Travel Way GIS-modelled travel way Notes 1, 7 STÓ:LÖ-AQ58 1152.09 1152.75 10U 526899E 5447487N 10U 526256E 5447658N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ58 1153.28 1154.59 10U 525745E 5447799N 10U 524454E 5447910N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-1614 1153.85 1153.85 10U 525187E 5447885N 10U 525183E 5447886N Travel Way GIS-modelled travel way Notes 1, 7 STÓ:LÖ-AQ58 1154.59 1158.34 10U 524452E 5447910N 10U 520751E 5447617N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ61 1158.25 1158.28 10U 520841E 5447595N 10U 520812E 5447602N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ61 1158.46 1158.57 10U 520650E 5447672N 10U 520629E 5447773N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ61 1160.47 1160.54 10U 519084E 5448720N 10U 519019E 5448760N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ61 1163.52 1164.26 10U 516791E 5450718N 10U 516114E 5450838N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ48 1165.93 1166.50 10U 514562E 5451152N 10U 514010E 5451299N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-1363 1166.14 1166.18 10U 514365E 5451209N 10U 514325E 5451221N Travel Way Documented travel way Notes 1, 7 STÓ:LÖ-1614 1166.73 1166.73 10U 513937E 5451510N 10U 513936E 5451511N Travel Way GIS-modelled travel way Notes 1, 7 STÓ:LÖ-869 1166.73 1166.78 10U 513934E 5451517N 10U 513920E 5451558N Sacred Site *Sxwōxwiyám, Placename area “Stó:lō", Resource Harvesting [Himalayan Blackberry 1163.49 to 1168.47] Notes 1, 2, 4, 5, 6, 7, 8, 9, 10, 14 STÓ:LÖ-869 1167.12 1167.18 10U 513807E 5451886N 10U 513789E 5451936N Sacred Site *Sxwōxwiyám, Placename area "Stó:lō", Resource Harvesting [Himalayan Blackberry 1163.49 to 1168.47] Notes 1, 2, 4, 5, 6, 7, 8, 9, 10, 14 STÓ:LÖ-AQ46 1167.72 1167.75 10U 513612E 5452448N 10U 513601E 5452481N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ46 1168.05 1168.88 10U 513482E 5452747N 10U 512843E 5452439N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ46 1168.90 1169.33 10U 512819E 5452441N 10U 512394E 5452439N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ46 1169.64 1169.74 10U 512215E 5452580N 10U 512124E 5452580N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ46 1170.06 1171.09 10U 511797E 5452583N 10U 511031E 5452923N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ46 1172.35 1173.12 10U 509833E 5453117N 10U 509144E 5453333N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-1614 1173.14 1173.16 10U 509123E 5453334N 10U 509107E 5453335N Travel Way GIS-modelled travel way Notes 1, 7 STÓ:LÖ-AQ46 1173.37 1173.45 10U 508927E 5453422N 10U 508859E 5453456N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ46 1173.60 1173.73 10U 508724E 5453524N 10U 508608E 5453582N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ49 1173.64 1173.65 10U 508692E 5453540N 10U 508682E 5453545N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ49 1174.15 1174.16 10U 508268E 5453799N 10U 508260E 5453805N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ49 1174.21 1174.28 10U 508229E 5453834N 10U 508171E 5453886N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-1614 1174.61 1174.64 10U 507928E 5454107N 10U 507902E 5454124N Travel Way GIS-modelled travel way Notes 1, 7 STÓ:LÖ-AQ49 1175.18 1175.19 10U 507597E 5454480N 10U 507587E 5454486N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ49 1175.25 1175.45 10U 507540E 5454518N 10U 507359E 5454606N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ49 1176.08 1176.27 10U 506805E 5454899N 10U 506719E 5455071N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ49 1176.63 1176.83 10U 506695E 5455418N 10U 506500E 5455457N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ49 1177.13 1177.57 10U 506325E 5455656N 10U 506361E 5456090N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ49 1177.90 1178.66 10U 506038E 5456097N 10U 505273E 5456102N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-1614 1178.18 1178.20 10U 505755E 5456099N 10U 505732E 5456099N Travel Way GIS-modelled travel way Notes 1, 7 STÓ:LÖ-AQ49 1178.88 1179.21 10U 505063E 5456117N 10U 505056E 5456449N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-AQ49 1179.33 1179.89 10U 504964E 5456478N 10U 504971E 5457038N Aquifer Aquifer Notes 1, 11, 12 STÓ:LÖ-1614 1179.92 1180.15 10U 504971E 5457065N 10U 505049E 5457207N Travel Way GIS-modelled travel way Notes 1, 7 STÓ:LÖ-AQ49 1179.92 1180.06 10U 504971E 5457066N 10U 504983E 5457199N Aquifer Aquifer Notes 1, 11, 12 Note: 1 KPs are approximate and based on pipeline route version SSEID005.14. Source: Ts'elxwéyeqw Tribe Management Limited (April 15, 2019)

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TABLE 3.0-4

STÓ:LŌ NATION TRADITIONAL LAND AND RESOURCE USE FEATURES NOTE PACKAGE

Note ID Application Description References 1 General Measures Traditional use activities have been identified and assessed as part of this Project. Pipeline construction is a sequential series of activities, which do not remain in one area for an extended period of time. EPPs, EAS and RSMTs form part of the Trans Mountain Application: application submitted to the CER, and provide mitigation strategies to help avoid, limit or reduce environmental effects from construction. Trans Mountain has developed an Environmental and Compliance Education Program to ensure that all Project personnel are trained and aware of roles and responsibilities, as well as imparting critical information regarding environmental protection, Volume 6B, Volume 6C and Volume 6E mitigation and compliance requirements. Training and Education Monitoring Plan (CER Condition 12) To address the potential impacts associated with construction, Trans Mountain developed the Pipeline EPP as part of the Facilities Application to communicate procedures and mitigation measures that are to be implemented during pipeline construction (Filing ID A81759) and associated construction activities. The Pipeline EPP is intended to be a comprehensive compilation of all environmental protection procedures, mitigation measures and monitoring commitments, as set out in Trans Mountain’s Application, its subsequent filings or as otherwise committed to during the CER proceedings. The current revision (Rev 6) of the Pipeline EPP is an update required by CER Condition 72 (Filing ID C01961) Access Management Plan (CER Condition 47) (Filing ID A90912) Pipeline EPP (CER Condition 72) (Filing ID C01961) Trans Mountain will implement the following general mitigation measures: • Provide Indigenous groups with the anticipated construction schedule and pipeline route maps, a minimum of 4 weeks prior to the commencement of construction in the vicinity of their respective communities; Response to Stó:lō Collective 89 Recommendations • The Environmental Inspector will review mitigation measures to be implemented during construction to avoid or reduce effects on environmental features (i.e., rare plants and rare ecological communities, wildlife species at risk, archaeological (Recommendations 27, 40, 41, 48, 49, 50, 52, 56) features, TLU sites and any other sensitive environmental or cultural features) along or in proximity to the pipeline construction footprint. This review will be conducted in advance of construction at known locations where the above features are (Filing ID A4S7H3) known to be present to ensure that suitable and appropriate procedures have been selected and can be implemented prior to construction where applicable. • Review mitigation measures to be implemented during construction to avoid or reduce effects on TLU sites along or in proximity to the pipeline construction footprint. This review will be conducted in advance of construction at known locations where Plan for Indigenous Group Participation in Construction the above features are known to be present to ensure that suitable and appropriate procedures have been selected and can be implemented prior to construction where applicable. Monitoring (CER Condition 98) (Filing ID A6V4W4) • Stake or flag boundaries of the pipeline construction footprint including temporary access roads and shoo-flies. Use short, painted stakes or lathe where livestock are present. Stake or flag environmental features and buffers (e.g., TLU sites) on or adjacent to the pipeline construction footprint to avoid the site. Refer to the EAS and the RSMTs for locations of identified environmental features. Ensure staking, flagging or snow fencing is maintained during construction. • Post signs in the vicinity of environmental features to alert construction personnel of their presence. Recommended setback distances are resource-specific and should be determined in consultation with an Environmental Inspector and/or Resource Specialist, if required. Use site identification numbers to ensure confidentiality and protection of resources, where warranted.

Access will be managed, where required, along the Project where new temporary and permanent access is created for the construction and operation of the pipeline to mitigate environmental effects associated with increased access. Trans Mountain prepared the Access Management Plan to meet CER Condition 47 (Filing ID A90912). This Access Management Plan also addresses the activities during pre-construction, construction (pipe installation) and construction clean-up and reclamation phases of the Project and provides guidelines for vehicular use on the pipeline construction footprint and associated access roads, as well as blocking and/or controlling access to previously inaccessible portions of the right-of-way following construction and throughout the operation phase of the Project.

To manage access, Trans Mountain will implement the following measures: • Restrict construction traffic to the approved and marked pipeline construction footprint and approved access roads, avoiding areas that are marked and abiding by any restrictions on in/out privileges that are implemented in areas requiring special protection; • Apply appropriate measures (e.g., signs, boundary markers, gates and fences) to ensure that Project vehicles remain on the designated access; • Install and maintain signs, gates or other temporary barriers at potential access points to the pipeline construction footprint or temporary construction access to deter unauthorized access during the construction period; • Where approved, block access to the public along new roads located within sensitive areas. Use adequate barricades such as jersey barriers, large boulders, fences or locking gates, where approved. Monitor road use and, where warranted, implement additional or alternative measures to ensure access is blocked. See Access Management section in Appendix H and Reclamation Management Plan (Section 9.1 of Volume 6 of the Environmental Plans).

The intent of the mitigation measures are to help protect environmental values and minimize and mitigate the potential adverse residual effects of the Project on human and predator access. The Access Management Plan (Filing ID A90912) will minimize the development of access routes, controlling public access along the pipeline construction footprint, selecting appropriate access routes that cause the least disturbance to high quality, sensitive wildlife habitat, managing traffic on these routes and determining appropriate construction reclamation. Trans Mountain will work with Appropriate Government Authorities, Indigenous groups, landowners, communities and tenure holders to ensure road use agreements are developed that maintain safety and accessibility for road users.

Ongoing communication between Trans Mountain and land users will aid in identifying access management concerns during construction, as well as appropriate methods and frequency of communicating updated construction progress and locations, and access being used or temporarily closed for public safety. This approach will also be used for any site-specific monitoring or maintenance activities during operations that could potentially require temporary access closures (e.g., maintenance digs).

Indigenous Monitors on-site through the construction of the Project will work with Trans Mountain to provide traditional knowledge to the construction program to ensure protection of the environment; to discuss upcoming traditional and western science elements to ensure protection and monitoring; and to monitor mitigation success in protecting the environment via the Plan for Indigenous Group Participation in Construction Monitoring (Condition 98) (Filing ID A6V4W4). Trans Mountain is committed to continued listening, learning and working with Indigenous groups to ensure that knowledge and advice is fully considered and incorporated in the Project. Trans Mountain will continue to engage Indigenous groups to identify continued opportunities for sharing of knowledge during all phases of the Project. In the event that additional TLU sites are identified during ongoing engagement with Indigenous groups prior to construction of the Project, the sites will be assessed and appropriate mitigation measures will be determined (Traditional Land Use Sites Discovery Contingency Plan - Appendix B of the Pipeline EPP [Filing ID C01961]).

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Note ID Application Description References 2 Plant Harvesting Sites One of Trans Mountain’s routing objectives is to, where practicable, co-locate the TMEP on or adjacent to the existing TMPL easement. Trans Mountain Application:

Trans Mountain will review the location of the traditional plant gathering site prior to construction activities to determine whether the site will be impacted. If the site will be impacted, Trans Mountain will notify the affected Indigenous group a minimum of Volume 5A, Volume 5B, Volume 6A, Volume 6B and Volume 6C 4 weeks prior to construction and provide the opportunity to harvest traditional plants. Response to Stó:lō Collective 89 Recommendations Trans Mountain has prepared the Rare Ecological Community and Rare Plant Population Management Plan to meet CER Condition 40 (Filing ID A90904). Where avoidance and disturbance reduction are not feasible, alternative reclamation techniques (Recommendations 36, 37) (Filing ID A4S7H3) will be implemented (e.g., seed collection or transplantation of individual plants or populations). Mitigation measures for rare ecological communities and rare plant populations, and those identified as plant harvesting sites will be developed on a site- specific basis, and will include the following measures, where applicable: Pipeline EPP (CER Condition 72) (Filing ID C01961)

Pre-Construction: Rare Plant Population Management Plan (CER Condition 40) • Work with Indigenous Monitors to evaluate the potential for narrowing down the pipeline construction footprint or to determine what other site-specific mitigation measures can be implemented at known plant gathering places. (Filing ID A90904)

Construction: Wetland Survey and Mitigation Plan (CER Condition 41) • Re-direct construction traffic around the occurrence if practicable. If traffic diversion is not practicable, reduce traffic within the occurrence by creating a single lane travel corridor through the extent of the occurrence. (Filing ID A90909) • Mow or walk-down shrubs, use matting and/or use a stump mulcher rather than grubbing, if feasible, to reduce the loss of vegetation cover. • Use geotextiles or protective ramping, matting and/or snow over the travel lane and/or spoil pile area in the vicinity of the population to reduce disturbance to the soil surface. Reclamation Management Plan (CER Condition 78) • Confine all clearing within the staked/flagged boundaries. Clear vegetation from only those areas essential for construction. Adhere to clearing restrictions associated with riparian buffer areas, and in areas where sensitive environmental features (Filing ID A85826) have been identified as outlined on the EAS. • Restrict grubbing to areas where soil salvage is required to reduce surface disturbance and encourage re-sprouting/natural re-generation of trees and shrubs. • Salvage the topsoil (up to 15 cm) from within a 10 m radius of the occurrence; isolate topsoil material from other spoil piles and identify with labelled stakes or flags; re-distribute salvaged topsoil material over the pipeline construction footprint at the location from which it was stripped. • Maintain low vegetation or vegetated ground mat within the riparian buffer zone of watercourses and wetlands, to the extent practicable, by clearing trees and walking-down low vegetation such that low-lying vegetation remains intact. Limit grubbing of cleared trees or mowed shrubs to the trench line and work side area needed for the vehicle crossing to protect riparian areas. • Retain sod and the vegetation mat if ground conditions are considered competent enough to support equipment traffic without rutting or mixing soils (i.e., are frozen and are not expected to thaw before completion of the work) on lands with thick sod or vegetation layers (e.g., grasslands, hay tame pasture), or that are matted where grading is not required. • Notify potentially affected Indigenous groups prior to the use of herbicides. • Restrict the application of herbicide within 30 m of known rare plant populations or rare plant communities. Spot spraying, wicking, mowing or hand-picking are acceptable weed control measures in proximity to rare plants and rare plant communities. • Water down the pipeline construction footprint, when warranted, to reduce or avoid the potential for dust emissions due to soil pulverization. Increase the frequency of watering roads and sites during periods of high-risk (e.g., high winds). Additional dust abatement measures (e.g., covering topsoil windrows, applying a tackifier) will be implemented, when warranted and approved by the Environmental Inspector. • Ensure that watering of roads and/or the pipeline construction footprint does not generate excessive formation of surface water accumulation (i.e., puddles or excessive mud generation) or result in overland water flow or sedimentation of nearby watercourses, wetlands or lakes.

Post-Construction: • Establish pre-construction profiles (grades) along the pipeline construction footprint for use during backfilling. • After final clean-up, the site will be seeded and planted according to specifications in the Reclamation Management Plan (Filing ID A85826). • Seed disturbed lands with land uses that support native and non-native plant communities with native and non-native grass mixtures and rates identified in the Reclamation Management Plan (see Section 9.1 of Volume 6 of the Environmental Plans) and as shown on the RSMTs. • Pick stones on agricultural and native grasslands so that the pipeline construction footprint surface is equivalent (i.e., stone size and density) to that of adjacent lands. Dispose of stones at approved locations.

Mitigation measures for wetlands are outlined in the Pipeline EPP (Filing ID C01961) and the Wetland Survey and Mitigation Plan (Filing ID A90909). Additional measures to reduce the disturbance to wetlands may include the following, where applicable: • Keep organic wetland soils separate from mineral upland soils. • Ensure that wetlands are re-contoured to their pre-construction profile. Remove all log corduroy, synthetic fabric, swamp mats and earthen ramps through wetlands in all situations. • Spread rollback, install biorolls, an erosion control blanket or staked logs/log cribwall on exposed moderately- to highly-erodible soils on non-agricultural lands where there is potential for erosion by wind or water prior to re-establishment of vegetation.

Additional mitigation measures for vegetation are outlined in the Pipeline and Facilities EPPs (Filing IDs C01961, A86546, A86536).

Trans Mountain will implement the Reclamation Management Plan (Filing ID A85826) that includes construction reclamation measures to be implemented prior to, during and following pipeline installation in order to stabilize and re-vegetate affected lands that in time achieve land productivity along the right-of-way equivalent to the adjacent land use and ensuring the ability of the land to support various land uses. Construction reclamation activities are measures conducted as part of the main construction program. The primary objective of the Plan is to return areas disturbed by the Project to approximate pre-construction use and capability. The Plan promotes the re-establishment of natural ecosystems that are compositionally and functionally similar to the early seral species of the native plant community that occurred pre-disturbance, or a vegetative cover compatible with surrounding vegetation and land uses. Reclamation measures are described in the following sub-sections and pertain to construction activities such as clearing and disposal; topsoil salvage, grading and replacement; temporary and existing construction access routes; natural re-generation; seed mixes and fertilizer; cover crops; seed application techniques; native plant material procurement and biostabilization and soil erosion control.

Trans Mountain will consult with Stó:lō representatives regarding weed control methods in areas with known traditional plant populations. Trans Mountain’s long-term objectives are to reduce the use of herbicides through proactive and preventative vegetation management (Pipeline EPP [Filing ID C01961]). In areas where herbicides are required the treatments will be implemented in accordance with Stó:lō accepted practices, regional and local best management practices, Municipal bylaws, Provincial legislation and regulatory guidelines. If herbicide treatments are required Trans Mountain will notify Stó:lō Representatives at least 30 days in advance of the planned treatments. Notifications will include, but are not limited to, the type of treatment that is planned and when the treatment will occur. Herbicide treatments typically occur in late spring and early summer or early fall.

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Note ID Application Description References 3 Plant Harvesting / Implement the mitigation measures as outlined above in Note 2 for Plant Harvesting Sites while working in the CSRA. Site-specific measures for work within the CSRA include: Trans Mountain Application: Reclamation Measures for • Trans Mountain will work with BC Parks to identify areas that may require fencing or signage to ensure the safety of park users. the CSRA • Trans Mountain will consult with BC MFLNRORD South Coast Region regarding updates to restrictions for retaining cleared trees. Volume 5A, Volume 5B, Volume 6A, Volume 6B and Volume 6C • Access to the pipeline construction footprint will be via existing access roads, upgraded deactivated roads and new temporary access. Access road details are contained in Section 3.4.2 of the Recreation Area Park Use Permit. Coquihalla Summit Recreation Area Reclamation Plan (Filing ID A5R2Z6) • If requested by BC Parks, temporary access control structures that prevent vehicles from accessing the CSRA will be installed when the Project is not conducting work in the area.

• Access to established recreation features will be maintained through the clearing, construction and reclamation period. Trans Mountain will work with BC Parks to identify areas that may require fencing or signage to ensure safety of Park users. Pipeline EPP (CER Condition 72) (Filing ID C01961)

BC Parks Land Use/Occupancy Resource Use Permit Reclamation considerations related to invasive species within the CSRA are outlined in the Coquihalla Summit Recreation Area Reclamation Plan (Filing ID A5R2Z6) include the following. Application for CSRA, 2016 • Bare soils should be seeded as soon as practicable following construction to minimize the risk of introducing Invasive species in the CSRA. • Access control measures that will prevent unauthorized access along the right-of-way will limit the introduction and spread of invasive species. Access Management Plan (CER Condition 47) (Filing ID • Seed mixes and application rates are identified in the Coquihalla Summit Recreation Area Reclamation Plan (Filing ID A5R2Z6). A90912)

Response to Stó:lō Collective 89 Recommendations (Recommendation 23[c]) (Filing ID A4S7H3) 4 Hunting Sites Mitigation measures for the effects on hunting can be divided into those pertaining to the wildlife and those pertaining to the activity of hunting. Pipeline EPP (CER Condition 72) (Filing ID C01961) For wildlife, the three main components of habitat fragmentation are habitat loss, reduced habitat patch size and increased isolation of patches. Effects of habitat fragmentation will be reduced by alignment of the pipeline construction footprint parallel to and contiguous with existing linear features and minimizing the Project Footprint to the maximum extent feasible. Trans Mountain will facilitate wildlife movement during construction by ensuring the Contractor conducts work expeditiously to maintain a Coquihalla Summit Recreation Area Reclamation Plan tight construction spread to reduce the duration of the open trench and to reduce potential barriers and hazards to wildlife by placing gaps in the pipe. (Filing ID A5R2Z6) Trans Mountain will implement the following suite of mitigation measures to limit the potential effects of the Project on wildlife and wildlife habitat: • Use signs and access barriers where appropriate to deter unauthorized access in accordance with the Access Management section in Appendix G. Discuss signs and locations with Appropriate Government Authorities, where applicable. Access Management Plan (CER Condition 47) • Confine all clearing within the staked/flagged boundaries. Clear vegetation from only those areas essential for construction. Adhere to clearing restrictions associated with riparian buffer areas, and in areas where sensitive environmental features (Filing ID A90912) have been identified as outlined on the EAS. • Where grubbing and grading are necessary, salvage stumps for rollback and grub surface vegetation (i.e., shrubs and small trees) to ground level to preserve topsoil and establish a smooth working surface. Riparian Habitat management Plan (CER Condition 71) • Reclaim all disturbed areas within one growing season. If feasible, seed and plant seedlings in early spring to take advantage of the spring precipitation. Refer to the Reclamation Management Plan (Section 9.1 of Volume 6 of the Environmental (Filing ID A90936) Plans) for more details on scheduling. • Notify the potentially affected Indigenous groups prior to the use of herbicides. • Restrict root grubbing in wet areas, where practical, to avoid creation of bog holes. • Limit clearing activities in buffers adjacent to watercourse crossings until just before construction. Refer to the Riparian Habitat Management Plan for additional mitigation measures when working in riparian habitat (Filling ID A90936) • Inspect the trench for trapped animals at the start of each day, before commencing lowering-in activities and at the end of each shift. An Environmental Inspectpr will contact the Appropriate Government Authority (i.e., AEP Fish and Wildlife, BC MOECCS in or the landowner/occupant to remove animals or livestock trapped in the trench, respectively. • Maintain a tight construction spread (i.e., stringing to backfilling) and construct the pipeline in an efficient manner to limit the duration of sensory disturbance to wildlife. • Suspend specific activities if previously unidentified species at risk are encountered on the pipeline construction footprint during construction. Implement the Wildlife Species of Concern Encounter and Discovery Contingency Plan in the Pipeline EPP (Filing ID C01961). • Do not harass or feed wildlife. Do not store food in beds of pick-up trucks or areas readily accessible to wildlife. • Prohibit all Project personnel from having pets on the pipeline construction footprint. • All Project workers are strictly prohibited from hunting, fishing, trapping and gathering plants within or along the pipeline construction footprint and at any other construction sites including but not limited to Trans Mountain facilities and premises. • Workers are prohibited from possessing or storing any firearm, bows, or crossbows, whether or not concealed, at a Project work site, on any Project-owned or leased premises (including construction camps) or in work vehicles. Fishing equipment, snowmobiles and all-terrain vehicles (ATVs) not used for work on the Project are prohibited at work sites and in work vehicles. Worker use and enjoyment of the environment when off-duty must be conducted in full compliance with all laws and regulations. • Restrict the duration that vehicles and equipment can sit and idle, unless air temperature is less than 0°C. Abide by Municipal non-idling bylaws, where applicable.

During construction, Trans Mountain will manage access (human and predator). At slope changes, crossings (i.e., watercourse, road, pipeline right-of-way, railway) and bends. Measures will be implemented to reduce access (human and predator) along the pipeline construction footprint and will include using CWD as rollback, and planting trees and/or shrubs at select locations along the pipeline construction footprint. Where rollback and CWD are needed for access management, erosion control and habitat enhancement, the Contractor will ensure that a sufficient supply is set aside for this purpose during final clean-up. Habitat connectivity will be restored by redistributing large-diameter slash (rollback) over select locations on the pipeline construction footprint (e.g., where high levels of CWD occur prior to construction), to provide cover and facilitate movement of wildlife.

Trans Mountain will implement the following mitigation to limit the potential effects of the Project on access issues: • Close new access roads no longer needed by Project personnel. Where warranted and requested by the Appropriate Government Authority or private landowner, implement measures to deactivate and reclaim the access road including: – remove vehicle crossings at watercourses/wetlands and reclaim associated disturbances; – remove cross drainage culverts and excavate a shallow ditch; – block off the access with the use of permanent fences with locked gates, boulders, ditches, berms, rollback or other method suitable for the site; – install permanent erosion control structures (e.g., cross ditches and berms); and; and – seed disturbed areas with an approved cover crop and/or grass/legume mix and install biodegradable erosion and sediment control measures, where warranted. • Construct snow berms 3+ m high across the entire construction right-of-way at potential access points to the construction right-of-way where access is to be blocked for the remainder of the winter period asapproved by the Environmental Inspector. • In Install and maintain gates at potential access points to the pipeline construction footprint. • Increase berm height to 2 m (approximately), if warranted, to limit unauthorized access during operations. • Remove any temporary vehicle crossings that were re-installed to provide access during final clean-up. • Dispose of remaining log corduroy and geotextile. • Install tree/shrub plantings at potential access points and viewsheds to the pipeline construction footprint to visually screen the pipeline construction footprint. • Rollback slash and salvaged timber at pre-determined locations to prevent access along the pipeline construction footprint. Spread evenly over the pipeline construction footprint. Do not walk down rollback used for access control. • Remove bar ditch ramps and reclaim temporary access to stable conditions.

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Note ID Application Description References 5 Fishing Sites Special precautions will be implemented (e.g., completing construction through some wetlands and watercourses during the winter months when the ground is frozen) where feasible, on the river and stream crossings along the pipeline construction Trans Mountain Application: footprint and within the window of least risk. Additionally, water quality will be monitored during all instream activity at watercourses identified on the EAS and RSMTs. Volume 5C A summary of the watercourse crossings for the Project are provided in the Watercourse Crossing Inventory (Filing ID A82366), including mitigation measures. Further discussion and mitigation measures to be implemented at watercourse crossings are included in the Pipeline EPP (Filing ID C01961). Pipeline EPP (CER Condition 72) (Filing ID C01961)

Trans Mountain will implement the following mitigation to limit the potential effects of the Project on fish and fish habitat: Watercourse Crossing Inventory (CER Condition 43) (Filing ID • Mark acquired ETWS prior to the initiation of instream work. Ensure ETWS does not encroach within vegetated riparian buffers. A82366), • Install temporary vehicle crossings in a manner that protects the bed and banks from erosion, maintains flow, does not disrupt fish passage and does not interfere with or impede navigation on navigable watercourses. • Locate ETWS outside of riparian areas where possible except where adjacent upland is lacking functional riparian vegetation. Response to Stó:lō Collective 89 Recommendations • Fell timber onto the pipeline construction footprint and away from watercourses and wetlands during survey line clearing. Remove fallen trees that inadvertently land off the pipeline construction footprint or into watercourses or wetlands in a manner (Recommendation 11) (Filing ID A4S7H3) that reduces disturbance. • Excavate the entry (launch) and expected exit (receiving) sites to provide for the containment of bentonite fluid and cuttings during a trenchless crossing. Ensure the excavation sites are located far enough away from the watercourse and that containment pits, berms or tanks used are large enough to contain the anticipated maximum volume of bentonite drilling fluid.

Access will be managed, where required, along the Project where new temporary and permanent access is created for the construction and operation of the pipeline. To mitigate environmental effects associated with increased access, which could further lead to increased concentrations of hunting and fishing activities at previously unattainable locations, increased predation of wildlife, disturb reclamation efforts on sensitive terrain and other anthropogenic disturbances, Trans Mountain will manage access along portions of its right-of-way where new access is/was created by implementing one or more of the mitigation measures to manage access during the pre-construction, construction and post-construction phases.

Trans Mountain will monitor water quality during construction at specific watercourse crossings and for water withdrawal and discharge during hydrostatic tests as described in the Pipeline EPP (Filing ID C01961). Where WQM fails to meet the parameters of established guidelines and is not in compliance with regulatory requirements the incident will be reported to Stó:lō representatives within the requested timeframe. 6 Visual Barriers Visual barriers are planned for KP 988.70 and KP 990.30, KP 992.3, KP 993.30, KP 997.30, KP 997.50, and KP 998.50 within the CSRA with the following reclamation prescription: Coquihalla Summit Recreation Area Reclamation Plan • Plant deciduous shrub and tree species and conifers in TWS. Place large root wads in the planting patches, if available. Stagger planting patches on either side of the pipeline construction footprint at recommend locations. The staggered plantings (Filing ID A5R2Z6) will allow access along the footprint, but the sight line will be obscured. The obscured sight line is of benefit to wildlife crossing the right-of-way and provides visual interest for recreational users (Filing ID A5R2Z6). In some cases, trees can be a source of natural sound that masks man-made noises and provide a visual buffer to the right-of-way. Reclamation Management Plan (CER Condition 78) • Other areas along the pipeline construction footprint may require visual barriers for restricted access sites, as outlined in the Reclamation Management Plan (Filing ID A5U9R3). (Filing ID A85826) • Conifers planted in the Project construction footprint as a visual barrier must be limited to the TWS and the edges of the right-of-way to allow for visibility of the operating pipeline during routine monitoring and maintenance. Planting across the entire width of the Project construction footprint may be permitted in select site-specific locations (e.g., riparian areas). • CWD (e.g., root wads and salvaged logs) can be placed in the planting patches to provide additional cover and obstacles that may restrict access. 7 Travel Ways Access will be managed, where required, along the Project where new temporary and permanent access is created for the construction and operation of the pipeline. to mitigate environmental effects associated with increased access, which could further Trans Mountain Application: lead to increased concentrations of hunting and fishing activities at previously unattainable locations, increased predation of wildlife, disturb reclamation efforts on sensitive terrain, and other anthropogenic disturbances, Trans Mountain will manage access along portions of the pipeline construction footprint where new access is/was created by implementing one or more of the mitigation measures to manage access during the pre-construction, construction and post-construction phases. Mitigation Volume 6B and Volume 6C measures are provided in the Access Management Plan (Filing ID A82366). Pipeline EPP (CER Condition 72) (Filing ID C01961) To minimalize disturbance to access to Indigenous groups’ traditional lands, the Access Management Plan (Filing ID A90912) addresses the management of pipeline construction traffic and access along the construction right-of-way and temporary access routes. This plan also addresses the activities during pre-construction, construction (pipe installation) and construction clean-up and reclamation phases of the Project and provides guidelines for vehicular use on the construction right-of-way and Access Management Plan (CER Condition 47) associated access roads, as well as blocking and/or controlling access to previously inaccessible portions of the right-of-way following construction and throughout the operation phase of the Project. The intent of the mitigation is to reduce disturbances (Filing ID A90912) caused by access, construction equipment and vehicle traffic, during and following pipeline construction.

The objectives of the Access Management Plan will be accomplished by minimizing the development of access routes, controlling public access along the construction right-of-way, selecting appropriate access routes that cause the least disturbance to high quality, sensitive wildlife habitat, managing traffic on these routes and determining appropriate construction reclamation. Trans Mountain will work with applicable resource managers, TLRU users to define locations where access control is necessary, and what type(s) of access control will be implemented.

The Access Management Plan (Filing ID A82366) addresses the management of pipeline construction traffic and access along the pipeline construction footprint and temporary access routes. This plan also addresses the activities during pre-construction, construction (pipe installation) and construction clean-up and reclamation phases of the Project and provides guidelines for vehicular use on the pipeline construction footprint and associated access roads, as well as blocking and/or controlling access to previously inaccessible portions of the right-of-way following construction and throughout the operation phase of the Project. The intent of the mitigation is to reduce disturbances caused by access, construction equipment and vehicle traffic, during and following pipeline construction. The Access Management Plan will minimize the development of access routes, controlling public access along the construction right-of-way, selecting appropriate access routes that cause the least disturbance to high quality, sensitive wildlife habitat, managing traffic on these routes and determining appropriate construction reclamation. Trans Mountain will work with applicable resource managers, TLRU users to define locations where access control is necessary, and what type(s) of access control will be implemented.

Trans Mountain will implement the following mitigation to limit the potential effects of the Project on travel ways. Applicable mitigation options listed below for previously identified habitation sites within the pipeline construction footprint will be confirmed based on the following criteria: the location of the site with respect to the proposed area of development, the relative importance of the site to the community and the potential for an alternative mitigation strategy to reduce or avoid sensory disturbance: • Reduce the amount of land disturbed by using previously disturbed areas for stockpiles, staging areas and camps where possible; • Narrow the pipeline construction footprint at key locations to avoid valued built or natural features, to the extent practicable; • Should additional travel ways be identified during ongoing engagement with Indigenous groups, implement the Traditional Land Use Sites Discovery Contingency Plan (Appendix B of the Pipeline EPP [Filing ID C01961]). Mitigation may include one or more of the following measures: – detailed recording and mapping of the trails within 100 m on both sides of the pipeline construction footprint; in partnership with Indigenous group representatives, a decision is then made about the relative importance of the trail and, if warranted, how best to maintain and control access; and/or – installing signage or scheduling construction during periods of least effect, where feasible.

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Note ID Application Description References 8 Cultural Sites Since April 2012, Trans Mountain has engaged with Indigenous groups that may be affected by the Project based on their assertion of traditional and cultural use of resources to maintain a traditional lifestyle. Trans Mountain respects the Indigenous and Trans Mountain Application: treaty rights, unique culture, diversity, languages and traditions of Indigenous people. Trans Mountain acknowledges the importance of teaching, the significance of culture and language and the considerable traditional knowledge that has been passed on for generations and as such is committed to continued listening, learning and working with Indigenous people to ensure that knowledge and advice is considered and incorporated in the Project. The Indigenous Engagement Program is based on mutual Volume 6B and Volume 6C respect, timeliness, accountability and transparency in order to build positive and productive relationships for the long-term. Heritage Resources Plan for the Trans Mountain Pipeline ULC In the event previously unidentified sacred sites are discovered during clearing or construction measures outlined in the Traditional Land Use Sites Discovery Contingency Plan in Appendix B of the Pipeline EPP (Filing ID C01961) will be implemented. Trans Mountain Expansion Project (CER Condition 100) (Filing ID A5U9Y4) Noise, dust and other disturbances will be mitigated to avoid the effects on people near the construction. Every effort is made to minimize effects to landowners and neighbours from surveying and staking the pipeline construction footprint to final clean- up. In areas where there may be a concern regarding the safety of the public, restricted areas are established. Environmental Plans Volume 7 Resource-Specific Mitigation Tables: Spread 5A: KP 806.47 TO KP 990.30 General mitigation measures for cultural sites may include the following, where applicable: (CER Condition 72) (Filing ID C01961) • Noise abatement equipment and construction scheduling will be considered at noise-sensitive locations (e.g., neighbouring residents) and during noise-sensitive periods. • Maintain equipment in good working condition and in accordance with manufacturer guidelines. Maintain noise suppression equipment (e.g., silencers or mufflers) on applicable construction machinery and vehicles. Environmental Plans Volume 7 Resource-Specific Mitigation • Restrict the duration that vehicles and equipment can sit and idle, unless air temperature is less than 0°C. Abide by Municipal non-idling bylaws, where applicable. Tables: Spread 5B: KP 990.30 TO KP 1075.10 (CER Condition 72) (Filing ID C01961) • Applicable mitigation options listed below for previously identified sacred sites within the pipeline construction footprint will be confirmed based on the following criteria: the location of the site with respect to the proposed area of development, the relative importance of the site to the community and the potential for an alternative mitigation strategy to reduce or avoid sensory disturbance (see response to Stó:lō Recommendation 42). • Narrow the pipeline construction footprint to the extent feasible at key locations to avoid known sacred areas. Environmental Plans Volume 7 Resource-Specific Mitigation Tables: Spread 6: KP 1075.10 to KP 1144.90 • Reduce the amount of land disturbed by using previously disturbed areas for stockpiles, staging areas and camps, where possible. (CER Condition 72) (Filing ID C01961)

Should additional sacred areas be identified during ongoing engagement with Indigenous groups, implement the Traditional Land Use Sites Discovery Contingency Plan in Appendix B of the Pipeline EPP (Filing ID C01961). Environmental Plans Volume 7 Resource-Specific Mitigation Tables: Spread 7: KP 1144.90 to KP 1180.06 Successful and proven mitigation measures for habitation sites include the following: (CER Condition 72) (Filing ID C01961) • Avoidance of the site; • Detailed mapping and a photographic recording of the location; and/or Response to Stó:lō Collective 89 Recommendations • Implementation of detailed recording and controlled excavations. (Recommendations 42, 44) (Filing ID A4S7H3)

Regarding archaeological, palaeontological and historic sites, Trans Mountain has completed studies along the pipeline construction footprint; however, archaeological studies are ongoing.

Trans Mountain will follow any conditions or recommendations identified in the permits for the AIA for BC [see Heritage Resources Plan for the Trans Mountain Pipeline ULC Trans Mountain Expansion Project CER Condition 100 (Filing ID A5U9Y4), Environmental Plans Volume 7 Resource-Specific Mitigation Tables: Spread 5A: KP 806.47 To KP 990.30; Spread 5B: KP 990.30 To KP 1075.10; Spread 6: KP 1075.10 to KP 1144.90 and Spread 7: KP 1144.90 to KP 1180.06 for the Trans Mountain Pipeline ULC Trans Mountain Expansion Project CER Condition 72 (Filing ID C01961). In the event archaeological, palaeontological or historical sites are discovered during construction, follow the contingency measures identified in the Heritage Resources Discovery Contingency Plan (Appendix B of the Pipeline EPP). No work at that particular location shall continue until permission is granted by Trans Mountain in consultation with a Resource Specialist, or, if warranted, the Appropriate Government Authority.

Trans Mountain will implement the following mitigation to limit the potential effects of the Project on archaeological sites: • Follow any recommendations identified in the AIA for BC. • Suspend work in proximity (i.e., within 30 m or other distance as specified in the applicable regulatory permit) to archaeological or paleontological sites (e.g., arrowheads, modified bone, pottery fragments and fossils) discovered during construction and notify the Environmental Inspector who will notify the Construction Manager, Heritage Resource Specialist and the Senior Compliance Advisor, who will notify the Appropriate Government Authority . No work at that particular location will continue until permission is granted by Trans Mountain in consultation with a Resource Specialist, and, if warranted, the Appropriate Government Authority. ; – As and where required, a Heritage Resource Specialist will develop, an appropriate mitigation plan in consultation with Trans Mountain, the Appropriate Government Authority as well as the applicable Indigenous groups. The mitigation measure options available include those measures for site avoidance, systematic data recovery and monitoring/surveillance as described above. • Prohibit the collection of any historical, archaeological or palaeontological resources by Project personnel except for qualified Heritage Resource Specialists acting as authorized by the appropriate regulator/permit. 9 Habitation Sites Trans Mountain will implement the following mitigation to limit the potential effects of the Project on habitation sites. Applicable mitigation options listed below for previously identified habitation sites within the pipeline construction footprint will be Pipeline EPP (Condition 72) (Filing ID C01961) confirmed based on the following criteria: the location of the site with respect to the area of development, the relative importance of the site to the community and the potential for an alternative mitigation strategy to reduce or avoid sensory disturbance: • Reduce the amount of land disturbed by using previously disturbed areas for stockpiles, staging areas and camps where possible; • Narrow the pipeline construction footprint at key locations to avoid valued built or natural features, to the extent practicable; • Should additional habitation sites be identified during ongoing engagement with Indigenous groups, implement the Traditional Land Use Sites Discovery Contingency Plan (Appendix B of the Pipeline EPP [Filing ID C01961]). Mitigation may include one or more of the following measures: – avoidance of the site; – detailed mapping and a photographic recording of the location; and/or – implementation of detailed recording and controlled excavations. 10 Place names Trans Mountain will recognize places names (e.g., on Project maps, signs and fencing) during the construction of the Project. Response to Stó:lō Collective 89 Recommendations (Recommendation 45) (Filing ID A4S7H3) Timeframe: ongoing through construction

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TABLE 3.0-4 Cont’d

Note ID Application Description References 11 Waterbody Avoidance Crossing methods specific to each watercourse are identified in the Watercourse Crossing Inventory (Filing ID A82366). Pipeline EPP (CER Condition 72) (Filing ID C01961) Areas Special precautions will be implemented (e.g., completing construction through some wetlands and watercourses during the winter months when the ground is frozen) where feasible, on the river and stream crossings along the pipeline construction Watercourse Crossing Inventory (CER Condition 43) footprint and within the window of least risk. Additionally, water quality will be monitored during all instream activity at watercourses noted as requiring WQM on the EAS and in Section 7.0 of these RSMTs. (Filing ID A82366)

A summary of the watercourse crossings for the Project are provided in the Watercourse Crossing Inventory (Filing ID A82366), including mitigation measures. Further discussion and mitigation measures to be implemented at watercourse crossings are mentioned under fish and fish habitat the Pipeline EPP (Fining ID C01961).

As part of Trans Mountain’s commitment to environmental protection, Trans Mountain will minimize potential adverse effects to watercourses/waterbodies by: expediting construction in and around watercourses/waterbodies; restoring watercourses/waterbodies to their original configurations and contours; segregating topsoil during excavation; permanently stabilizing upland areas near wetlands as soon as possible after backfilling; inspecting the pipeline construction footprint periodically during and after construction and repairing any erosion control or reclamation features until permanent re-vegetation is successful.

Trans Mountain will implement the following mitigation to limit the potential effects of the Project on fish and fish habitat: • Mark acquired ETWS prior to the initiation of instream work. Ensure ETWS does not encroach within vegetated riparian buffers; • Install temporary vehicle crossings in a manner that protects the bed and banks from erosion, maintains flow, does not disrupt fish passage and does not interfere with or impede navigation on navigable watercourses. • Fell timber onto the pipeline construction footprint and away from watercourses and wetlands during survey line clearing. Remove fallen trees that inadvertently land off the pipeline construction footprint or into watercourses or wetlands in a manner that reduces disturbance. • Excavate the entry (launch) and expected exit (receiving) sites to provide for the containment of bentonite fluid and cuttings during a trenchless crossing. Ensure the excavation sites are located far enough away from the watercourse and that containment pits, berms or tanks used are large enough to contain the anticipated maximum volume of bentonite drilling fluid. 12 Aquifers (as defined by As part of Trans Mountain’s commitment to environmental protection, Trans Mountain will minimize potential adverse effects to watercourses/waterbodies by: expediting construction in and around watercourses/waterbodies; restoring Pipeline EPP (CER Condition 72) (Filing ID C01961) Stó:lō) watercourses/waterbodies to their original configurations and contours; segregating topsoil during excavation; permanently stabilizing upland areas near wetlands as soon as possible after backfilling; inspecting the right-of-way periodically during and after construction; and repairing any erosion control or reclamation features until permanent revegetation is successful. General mitigation measures for groundwater are included in the Pipeline EPP (Filing ID C01961). Groundwater Management Plan (CER Condition 72) (Filing ID C01961) Trans Mountain prepared a Groundwater Management Plan to meet part of Condition 72 (Filing ID C01961), which outlines mitigation measures for groundwater resources.

Monitor water encountered in the trench during trench excavation, if springs and groundwater are encountered, review and determine the appropriate mitigation (e.g., installation of subdrains, trench breakers, etc.) Where warranted, Trans Mountain will seek the advice of the Hydrogeological or Geotechnical Resource Specialist.

Install trench plugs, where warranted, at the edge of perched wetlands to prevent the pipeline trench from acting as a conduit. 13 OGMAs OGMA boundaries will be surveyed in the field with unique flagging tape that is highlighted in the Old Growth Management Areas Mitigation and Replacement Plan (Filing ID A84120). Infringement in this boundary should be considered as a trespass. Pipeline EPP (CER Condition 72) (Filing ID C01961) Ensure clearing activities do not exceed the flagged OGMA boundaries to minimize damage to old growth trees. During the pre-construction timber cruise, identify and map areas with bark beetle activity or other forest health concerns. The forest health information collected will be listed in the harvesting site plan prepared by a Qualified Professional See the Timber Salvage Plan (Section 5.1 of Volume 6 of the Environmental Plans), and OGMA Mitigation and Replacement Plan (Section 5.2 of Volume 6 Old Growth Management Areas Mitigation and Replacement of the Environmental Plans) for additional mitigation to be implemented within defined OGMAs Plan (CER Condition 72) (Filing ID A84120)

The Project area within the S’ólh Téméxw crosses three legal and one nonlegal OGMAs. Two of the legal OGMAs occur in ecosystem types that support the growth of western red cedar. If clearing in OGMAs becomes an approved construction Response to Stó:lö Collective 89 Recommendations requirement, Trans Mountain will discuss Stó:lō’s desire to salvage cedar with the OGMA regulator and the terms for commercial harvest will be negotiated. (Recommendations 29, 40) (Filing ID A4S7H3)

For more information about OGMA mitigation, refer to the Old Growth Management Areas Mitigation and Replacement Plan (Filing ID A84120) as well as the forest health mitigation measures provided in Section 8 of the Pipeline EPP (Filing ID C01961). 14 Himalayan Blackberry Control techniques for areas the Stó:lō would like cleared of Himalayan blackberry will be determined in consultation, but may include cutting stems and removing root wads during construction clearing and grading activities and hand pulling seedlings Response to Stó:lō Collective 89 Recommendations and small plants or digging out roots or spot herbicide treatments of larger plants and small patches that return to the Project Footprint after construction. Himalayan blackberry is not a preferred plant in riparian areas as the invasive plant does not provide (Recommendation 32) (Filing ID A4S7H3) the habitat structure or function of the natural riparian plant community. In riparian areas, Trans Mountain’s reclamation goal would be to replant a riparian plant community. For this species, Trans Mountain will review and incorporate additional clearing of Himalaya blackberry in locations as determined by Stó:lō representatives as part of Trans Mountain weed and vegetation management Notes: AIA = Archeological Impact Assessment BC MOECCS = BC Ministry of Environment and Climate Change Strategy CSRA = Coquihalla Summit Recreation Area ETWS = Extra Temporary Workspace HRIA = Historical Resources Impact Assessment TMPL = Trans Mountain Pipeline (existing) TWS = Temporary Workspace

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4.0 WILDLIFE AND WILDLIFE HABITAT 4.1 Wildlife Features Detailed site information for wildlife features are provided in Table 4.1-2. General mitigation measures can be found in Section 7.0 of the Pipeline EPP (Volume 2 of the Environmental Plans).

TABLE 4.1-2

WILDLIFE HABITAT FEATURES IN BRITISH COLUMBIA

Feature Location Relative to Recommended Construction Work ID Feature Info PNG Notation1 UTM2 KP Start1 KP End1 Footprint3 Setback4 Window5 Site-Specific Mitigation6 Amphibian Breeding Pond WILD- 26 northern red-legged A-088-H/092-G-02 to 10U 529461E 1146.29 1146.51 12 m southeast 100 m August 1 to January 31 (Sensitive Prior to Clearing/Construction frog B-088-H/092-G-02 5444440N period: February 1 to July 31) • Schedule clearing and construction activities outside of the breeding period for amphibians, where feasible, to reduce potential impacts to breeding amphibians. In BC, this will vary from approximately April 15 to June 15 (Hargreaves to Hope) and from approximately February 1 to July 31 (Hope to Westridge). • In the event an amphibian breeding pond is found; the recommended buffers are: – 150 m (undeveloped); 100 m (rural) and 30 m (urban) (BC MOE 2014). • Consult with a Wildlife Resource Specialist to discuss practical options and mitigation measures where the recommended setback cannot be implemented. Each circumstance will vary depending on Project scheduling, location of the breeding pond and site conditions, and mitigation measures should be considered accordingly. – During the breeding, rearing and dispersal period for amphibians (may vary from approximately April 1 to October 1 [Hargreaves to Hope] and from February 28 to October 1 [Hope to Westridge]), practical options and measures may include one or a combination of the following: amphibian salvage (within the breeding pond if crossed by the Project Footprint and/or in terrestrial habitat crossed by the Project Footprint within the recommended buffer), on-site monitoring or use of exclusion fencing – If activity is scheduled during the over-wintering period for amphibians (generally from approximately October 2 to March 31 [Hargreaves to Hope] and from October 2 to February 27 [Hope to Westridge]) within the setback of known breeding ponds, consider implementing an amphibian salvage prior to hibernation to move amphibians outside of the Project Footprint. • Obtain the appropriate permit and comply with the permit conditions when an amphibian salvage is necessary. Any re-location of amphibians will be conducted by a Wildlife Resource Specialist. • In the event an amphibian is found, implement the Wildlife Species of Concern Discovery and Encounter Contingency Plan (see Appendix B of the Pipeline EPP).

During Clearing/Construction • In the event an amphibian pond is crossed, implement the standard pipeline construction and water crossing mitigation measures in Section 7.0 and 14.0 of the Pipeline EPP.

Operations • Minimize the use of herbicides within the recommended buffers of identified amphibian breeding ponds. Consider non-chemical vegetation options as the primary method to manage non-woody problem vegetation (such as mowing or hand-pulling). When non-chemical vegetation management options are not practical utilize spot treatment applications of herbicides only as necessary. Amphibian Breeding Stream WILD- northwestern A-020-I/092-G-02 10U 527899E 1150.89 1151.15 On Footprint 100 m August 1 January 31 (Sensitive Prior to Clearing/Construction 198 salamander 5447184N period: February 1 to July 31) • Ensure an amphibian salvage permit has been obtained and the Qualified Professional(s) identified on the permit conduct an amphibian salvage prior to clearing and construction activities at known stream-dwelling amphibian breeding locations. • At identified stream-dwelling amphibian streams, slowly remove all potential cover features (e.g., rocks, coarse woody debris) from the crossing and retain on-site for use during restoration. • At identified stream dwelling amphibian streams retain mature trees on the edge of the pipeline construction footprint where their retention will not affect construction execution, pipeline operations or maintenance activities, or conflict with requirements or applicable safety requirements. The retention of these trees will be approved by the Environmental Inspector.

During Construction • In the event stream-dwelling amphibians are identified on the Project Footprint during construction, the following mitigation is recommended: • Ensure an amphibian salvage permit has been obtained and the Qualified Professional(s) identified on the permit conduct an amphibian salvage. • Implement pipeline construction and watercourse crossing mitigation described in Section 7.0 and 14.0 in the Pipeline EPP.

Operations • Minimize the use of herbicides within the riparian buffer of streams. Consider non-chemical vegetation options as the primary method to manage non-woody problem vegetation (such as mowing or hand-pulling). When non-chemical vegetation management options are not practical utilize spot treatment applications of herbicides only as necessary. Notes: 1 The PNG notation and KP range provided include the wildlife feature setback, except where otherwise noted. Raptor nests include the additional “breeding season quiet buffer” that is recommended during the breeding season (i.e., same period as the recommended timing restriction), where available. The additional “breeding season quiet buffer” for species with low-moderate or low tolerance for disturbance (e.g., burrowing owl) will be determined by a species specialist if clearing/construction occurs during the sensitive period. The unidentified hawk nest is based on land use and the recommended setback for species with high and moderate-high low tolerance (e.g., 200 m). 2 UTM (NAD 83) coordinates are based on field information. 3 The location of the wildlife habitat feature is provided relative to the pipeline construction footprint, which refers to the pipeline footprint area comprised of TWS, ETWS and the permanent easement that is disturbed during construction. The distance of the wildlife habitat feature to the nearest point of the pipeline construction footprint is provided. Distances are approximate.

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4 Wildlife feature buffers are recommended in the Guidelines for Raptor Conservation during Urban and Rural Land Development in British Columbia (BC MOE 2013) and Develop with Care 2014: Environmental Guidelines for Urban and Rural Development in British Columbia (BC MOE 2014), as well as personal communication with BC MFLNRORD. If implementation of the buffer is not possible, additional consultation with a Wildlife Resource Specialist (and, where warranted, Provincial regulators) is recommended to determine the appropriate size of the recommended buffer and/or relaxation of the recommended buffer in consideration of site-specific conditions and the timing of construction activities. Additional details on mitigation, buffers and recommended construction work windows is provided in Table 4.4-1: Wildlife and Wildlife Habitat Environmental Protection Measures. Recommended buffers are provided based on the surrounding land use. The Develop with Care (BC MOE 2014) definitions of undeveloped, rural and urban land uses are as follows: - Undeveloped: applies to large tracts of previously undeveloped forest or grasslands that are being developed into lots of 5 ha or less. In undeveloped areas, most species have likely had less contact with humans and will be less tolerant to human presence. - Rural: applies to lot sizes of 1-5 ha that are being further subdivided or developed. - Urban: applies to lots that are 1 ha or less and are being further subdivided, developed or modified in some way. Buffer widths are smaller since some wildlife may have developed greater tolerance to human activity, and the high demand for land and/or previous developments may preclude larger buffers. Professional judgement was used in determining appropriate land use (i.e., undeveloped, rural or urban) based on field information and a review of aerial imagery of the surrounding land use. The buffers for raptor nests that are provided in brackets include an additional “breeding season quiet buffer” that is recommended during the breeding season (i.e., same period as the recommended timing restriction). This “breeding season quiet buffer” is typically 100 m but may differ for species with low-moderate or low tolerance for disturbance (BC MOE 2013). 5 Recommended timing restrictions for bald eagle, osprey and other raptors (e.g., unidentified hawk nests) are based on the Develop with Care 2014: Environmental Guidelines for Urban and Rural Development in British Columbia (BC MOE 2014), other species-specific sensitive timing windows are based on the Guidelines for Raptor Conservation during Urban and Rural Land Development in British Columbia (BC MOE 2013) and Environment and Climate Change Canada’s (ECCC’s) migratory bird nesting periods (ECCC 2018), where appropriate. Where specific timing restrictions are not provided by the Appropriate Government Authorities, recommended construction work windows are approximate and based on sensitive periods when species (i.e., amphibians) are expected to be breeding; however, these dates may vary from year-to-year depending on weather conditions. Note, “—“ indicates that a formally recommended timing restriction for coastal tailed frog is not applicable since coastal-tailed frogs are present instream year-round. 6 The wildlife habitat features listed in Table 4.1-2 are not intended to be interpreted as a complete inventory for the Project. New wildlife habitat features may be built/occupied prior to the start of construction. In the event additional wildlife habitat features are discovered prior to or during construction, refer to the Wildlife Species of Concern Discovery and Encounter Contingency Plan (see Appendix B of the Pipeline EPP). Mitigation will be reviewed and approved by an Environmental Inspector with guidance from a Wildlife Resource Specialist depending on the site-specific circumstances and may include the measures listed above. References British Columbia Ministry of Environment (BC MOE). 2013. Guidelines for Raptor Conservation during Urban and Rural Land Development in British Columbia (2013). A companion document to Develop with Care 2012: website: http://www.env.gov.bc.ca/wld/documents/bmp/raptor_conservation_guidelines_2013.pdf. Accessed: February 2016. British Columbia Ministry of Environment (BC MOE). 2014. Develop with Care 2014: Environmental Guidelines for Urban and Rural Development in British Columbia - Section 4 Environmentally Valuable Resources. Website: https://www2.gov.bc.ca/assets/gov/environment/natural-resource-stewardship/standards-guidelines/best-management-practices/develop-with- care/dwc-section-4.pdf. Accessed: February 2016. Environment and Climate Change Canada (ECCC). 2018. General Nesting Periods of Migratory Birds in Canada. Website: https://www.canada.ca/en/environment-climate-change/services/avoiding-harm-migratory-birds/general-nesting-periods.html Accessed: June 2019.

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4.2 Provincially-Identified Wildlife Habitat Areas Detailed site information for Provincially-identified wildlife areas and ECCC migratory bird nesting zones can be found in Tables 4.2-2A . General mitigation measures can be found in Section 7.0 of the Pipeline EPP (Volume 2 of the Environmental Plans).

TABLE 4.2-2A

PROVINCIALLY-IDENTIFIED WILDLIFE AREAS AND ECCC MIGRATORY BIRD NESTING ZONES IN BRITISH COLUMBIA

Recommended Construction Work Feature ID Feature1 Wildlife Area / Nesting Zone PNG Notation KP Start KP End Window2 Site-Specific Mitigation3 -- Migratory Bird Nesting Zones Migratory Bird Nesting Zone A1 A-067-D/092-H-5to A-025-D/092-G-7 999.92 1180.15 August 17 to March 25 (Nesting period: • Schedule clearing and construction activities outside of the bird nesting period, where feasible March 26 to August 16) • In the event clearing or construction activities are scheduled to occur within the bird nesting period, Wildlife Resource Specialists will use non- intrusive methods to conduct an area search within 7 days of activity for evidence of nesting (e.g., presence of territorial males, alarm calls, distraction displays, adults carrying nesting material/food) where suitable nesting habitat is present, as determined by an Environmental Inspector or Wildlife Resource Specialist. In the event an active nest is found, the nest will be subject to site-specific mitigation measures (e.g., clearly marked species-specific buffer around the nest or non-intrusive monitoring). Engage a Wildlife Resource Specialist to monitor the nest during activity to ensure disturbance to nesting is avoided where site-specific circumstances may permit a reduction in the protective buffer (e.g., adequate barrier exists between the nest and Project activities that effectively reduces sensory disturbance from the Project). If monitoring indicates Project activities are causing disturbance of an active nest (i.e., considerable behavioural changes from baseline), work will be modified, or temporarily halted and corrective measures will be implemented (e.g., increase in protective buffer, modification of Project activities within the buffer). The appropriate mitigation measures will be determined by an Environmental Inspector, in consultation with a Wildlife Resource Specialist. Notes: 1 Important Bird Areas are included in this Table (IBAs are an international conservation initiative coordinated by BirdLife International, and co-partners for the IBA Program in Canada are Bird Studies Canada and Nature Canada). 2 Recommended timing restrictions are based on ECCC’s migratory bird nesting periods (ECCC 2018) and consultation with Appropriate Government Authorities, where appropriate. The migratory bird nesting period is defined as the period when the majority (shown as 1-100% on the nesting calendars) of breeding bird species in a nesting zone are expected to be nesting. However, it should be noted that some species may nest earlier or later, and there may be a risk of incidental take outside of the identified periods (although much lower risk compared to activities scheduled during the identified nesting periods). Note, “--“ indicates that a formally recommended timing restriction is not applicable. 3 Does not include the complete list of recommended mitigation measures. Refer to Table 4.4-1 for this information.

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4.3 Wildlife Critical Habitat as identified by ECCC Detailed information for those wildlife species with federally identified early draft, candidate, proposed and final critical habitat as provided by ECCC is provided in the Tables below. Wildlife Species at Risk Mitigation and Habitat Restoration Plans have been prepared for these species and should be referred to for more detail. These are provided in Section 6 of Appendix G of the Pipeline EPP.

The stages of critical habitat are below. Final and Proposed critical habitat has been identified in a posted (final or proposed) Recovery Strategy. Where this has been mapped, ECCC is working to make the spatial boundaries publicly available. Detailed information on Candidate and Early Draft critical habitat (mapped areas) is not publicly available, but was provided to Trans Mountain by ECCC for Project planning purposes only. The areas of Candidate and Early Draft critical habitat provided by ECCC in some cases were very broad, and were therefore refined and narrowed for Project planning purposes using the best available information. The status of critical habitat and the locations may change for selected species prior to Project activity. The information on Candidate and Early Draft critical habitat provided in the following tables and the EAS was prepared by Trans Mountain based on data from ECCC and is provided with the permission of ECCC.

• Final: Federal Recovery Strategy and critical habitat have gone through all phases of review and the process is complete. This information is publicly available in a posted Recovery Strategy. - Table 4.3-1A, B: Lewis’s Woodpecker;

- Table 4.3-2: Great Basin Spadefoot;

- Table 4.3-3A, B: Williamson’s Sapsucker;

- Table 4.3-4: Oregon Forestsnail;

- Table 4.3-5: Coastal Giant Salamander;

- Table 4.3-6: Pacific Water Shrew; and

- Table 4.3-7: Townsend’s Mole.

• Proposed: Federal Recovery Strategy has completed all stages of regional review and pre-registry consultation. The Recovery Strategy’s next step is to be posted on the Species at Risk Public Registry for a 60-day consultation as a 'Proposed' Recovery Strategy. This information is publicly available in a posted Recovery Strategy. • Candidate: Federal Recovery Strategy has completed an internal review and has been partially vetted by BC and (if relevant) other agencies (i.e., Fisheries and Oceans Canada [DFO] or Parks Canada). This information is not publicly available and is provided with the permission of ECCC. - Table 4.3-10A, B: Barn Owl

• Early Draft: Federal Recovery Strategy has not completed an internal Federal review. This information is not publicly available and is provided with the permission of ECCC. - Table 4.3-11: American Badger, jeffersonii subspecies;

- Table 4.3-12A, B: Western Screech-Owl, macfarlanei ssp., Western Screech-Owl, kennicottii ssp., and

- Table 4.3-13: Oregon Spotted Frog.

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TABLE 4.3-6

FINAL CRITICAL HABITAT FOR PACIFIC WATER SHREW (ECCC)

Locations within Critical Habitat (as identified by ECCC Identified Watercourses and Species in Recovery Strategy)1 Wetlands Recommended Mitigation Specific to Critical Habitat Pacific Water Shrew Fraser Heights KP 1161.95 Note, the mitigations listed as follows apply to all locations within identified critical habitat. Some measures are specific to the identified watercourse and wetlands. Refer to the Pacific Water Shrew • KP 1161.02 to KP 1162.83 Unnamed Drainage (Wetland) Mitigation and Habitat Restoration • KP 1162.95 to KP 1163.33 (BC-773.5) Prior to Clearing/Construction Plan (see Section 6.4.8 of Volume • KP 1163.47 to KP 1163.74 UTM: 10U 518007E 5449728N • Conduct Project activity only after a Pacific water shrew salvage has been completed. Schedule clearing and construction from September 1 to December 31 to avoid the breeding and rearing period, pending salvage permit condition requirements . A 6 of the Environmental Plans) KP 1162.41 salvage cannot occur if frost, heavy rainfall or cold temperatures (no less than 3°C) are expected to occur. Unnamed Channel (BC-774a) • Within the South of Clayburn Creek area, scheduling needs to also consider timing for Oregon forestsnail (refer to the Oregon forestsnail Mitigation and Habitat Restoration Plan). In this area, a salvage of Pacific water shrew and Oregon forestsnail may UTM: 10U 517647E 5450014N be best suited for mid-September to late October depending on other scheduling considerations. • KP 1163.07 Obtain the necessary permit for a salvage of Pacific water shrew. Adhere to the conditions of the permit. A qualified Wildlife Resource Specialist will conduct any salvage of Pacific water shrew. Conduct salvage as close to clearing and construction as possible. Unnamed Channel (BC-774b) • UTM: 10U 517140E 5450425N Following the salvage, monitor and maintain exclusion fencing installed prior to the salvage to prevent Pacific water shrew from re-entering the work area until immediately prior to the onset of construction works. • Prior to clearing within the area up to 100 m on either side (where present prior to construction) of identified watercourses (i.e., BC-728g, BC-728h, BC- 729, BC-773.5, BC-774a, BC-774b, and BC 774c) and wetlands (i.e., flat swamp [Abbo- KP 1163.19 Burn_W1129point51]) and basin marsh surrounded by riparian swamp [Abbo-Burn_W1129point5]) , the Environmental Inspector, with the assistance of a Wildlife Resource Specialist as necessary, will identify mature trees that provide shade located on Unnamed Drainage (BC-774c) the edge of the Project Footprint, that can be avoided where their retention will not affect construction execution, pipeline, operations or maintenance activities, or conflict with applicable safety requirements. The retention of these trees will be approved UTM: 10U 517067E 5450486N by the Environmental Inspector and Construction Manager or designate to ensure safety requirements. Clearly mark locations where clearing is to be narrowed or avoided to retain identified trees. KP 1161.20 to KP 1161.44 • Complete danger tree assessments on the edge of the Project Footprint so that every effort can be made to retain (and if necessary, modify to remove dangerous portions) mature shade trees as an alternate to complete removal. Those conducting Flat Swamp (shrubby swamp) danger tree assessments will be trained as per the Wildlife Danger Tree Assessor’s Course as administered by the Wildlife Tree Committee or will refer to the wildlife danger tree assessor’s material (course workbooks, guides) available on the (Abbo-Burn_W1129point51) Government of BC website (Government of BC 2017) for guidance on reasonable efforts and suitable mitigation in danger tree assessments. KP 1161.90 to KP 1162.28 • Immediately prior to watercourse crossing construction at identified watercourses, salvage and retain large pieces of in-stream CWD that may be disturbed by construction for later use during restoration in an effort to emulate pre-construction (baseline) Basin Marsh (seasonal emergent conditions. marsh) and Flat Swamp (mixedwood treed swamp) During Clearing/Construction (Abbo- Burn_W1129point5) • In the event Pacific water shrew are discovered during clearing or construction, implement the Wildlife Species of Concern Discovery and Encounter Contingency Plan. • Salvage and retain CWD within areas where the resource exists, for later use during restoration in an effort to emulate pre-construction (baseline) conditions. CWD will be salvaged during clearing or immediately prior to topsoil material handling and grading. Large pieces of CWD are preferred, however smaller pieces can also be salvaged where large pieces are not available. Retain and replace CWD using the original CWD found at the site where sufficient storage space is available, and supplement with felled timber where necessary to achieve target volumes. Refer to Table 10.1-5 for CWD Target Volumes.

Reclamation • At identified watercourses, replace in-stream CWD salvaged and retained prior to watercourse crossing construction. The location and amount of in-stream CWD replaced will be similar to pre-construction conditions. Placement of in-stream CWD should not become a barrier to fish movement or stormwater discharge. • Replacement of grade material to pre-construction contours should focus on restoration of micro-topography, particularly pit and mound micro-topography (i.e., undulating ground surface), where it exists prior to construction. • Replace CWD that was salvaged and retained during clearing within the Project Footprint. The location and the volume replaced will be similar to pre-construction conditions, where sufficient storage space is available. Tons/ha of CWD retained must comply with BC MFLNRORD Wildfire Management Branch Fuel Hazard Abatement specifications. Species that pose a forest health risk will not be used. • Use natural re-generation and planting of native vegetation (e.g., tree seedlings and shrubs) as specified in the Reclamation Management Plan and Riparian Habitat Management Plan (Sections 9.0 and 8.0 of Volume 6: Environmental Management Plans). Species lists and seeding/planting prescriptions are provided in these plans. The reclamation strategy will be compatible with the existing land use and the construction Line List.

Operations • Implement the appropriate vegetation management measures in consideration of species at risk and their habitat (e.g., restrict vegetation management to the minimum width required for the safe operation and inspection of the pipeline, and allow vegetation outside of this area to regenerate). • Use selective hand-clearing as the primary method of vegetation control in riparian areas of identified watercourses. • Minimize the use of herbicides within 100 m of identified watercourses and wetlands. Consider non-chemical options as the primary method to manage non-woody problem vegetation (e.g., mowing or hand pulling). When non-chemical vegetation management options are not practical (e.g., invasive plant removal) utilize spot treatment applications of herbicides as necessary. Note: 1 KPs are approximate and based on pipeline route version SSEID005.14 where the centreline is located within critical habitat.

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TABLE 4.3-9

PROPOSED CRITICAL HABITAT FOR WESTERN PAINTED TURTLE (ECCC)

Locations within Critical Habitat (as identified by ECCC Locations of Interest and Identified Species in Recovery Strategy)1 Watercourses2 Recommended Mitigation Specific to Critical Habitat Western Painted Turtle (pacific Coquitlam and Burnaby / Deer KP 1167.69 to KP 1167.78 (WF-WPT-16) Note, the mitigations listed as follows apply to the areas listed in the locations of interest column. Some measures are specific to the identified watercourses. coast population) Lakes • Port Mann Slough (BC-780.1) Refer to Appendix A of the • KP 1167.69 to KP 1168.35 KP 1167.69 Prior to Clearing/Construction Updates Under the Species at Risk • KP 1169.20 to KP 1169.64 • UTM: 10U 513601E 5452482N • Obtain the necessary Provincial Permit for a salvage for western painted turtle. Adhere to the conditions of the Permit. A qualified Wildlife Resource Specialist will conduct any salvage of western painted turtle. Act (SARA) • KP 1171.10 to KP 1172.01 KP 1167.82 to KP 1168.12 (WF-WPT-17) • Schedule clearing from March 1 to October 15, where possible, when turtles are active and able to disperse from construction areas to avoid the winter months when western painted turtles are overwintering (e.g., buried in waterbody • KP 1172.16 to KP 1172.53 • Unnamed Channel (BC-780a1) substrate). Obtain a Provincial salvage permit for western painted turtle and adhere to permit conditions. • • KP 1173.14 to KP 1174.23 KP 1167.81 Prior to crossing a waterbody at identified suitable locations of critical habitat, salvage and retain in-stream objects (emergent logs, large woody debris, rocks) for later use during reclamation in an effort to emulate pre-construction (baseline) conditions. These features will be salvaged immediately prior to commencing the crossing. • KP 1174.71 to KP 1175.10 UTM: 10U 513568E 5452575N

• KP 1175.18 to KP 1175.69 • Unnamed Channel (BC-780a2) During Clearing/Construction • KP 1176.08 to KP 1176.88 KP 1168.07 • In the event western painted turtle are discovered during clearing or construction, implement the Wildlife Species of Concern Discovery and Encounter Contingency Plan (see Appendix B of the Pipeline EPP). Obtain a provincial UTM: 10U 513429E 5452747N salvage permit for western painted turtle and adhere to permit conditions. KP 1168.27 to KP 1168.35 (WF-WPT-18) • The Environmental Inspector will document construction methods, decisions related to implementation and location of mitigation measures and final reclamation measures and issues encountered, as well as communication records for • Unnamed Channel (Roadside Canal) (BC- discussions with BC MFLNRORD or Appropriate Government Authorities. 780a3) • Ensure sighting records for western painted turtle are provided to the Environmental Inspector. Records will be maintained and made available for reporting to applicable regulatory agencies (e.g., BC Conservation Data Centre). KP 1168.29 UTM: 10U 513322E 5452552N Reclamation KP 1172.28 to KP 1172.53 (WF-WPT-19) • Replace subsoil to ensure that the level of compaction is sufficient to avoid future subsidence but does not exceed soil compaction levels found prior to construction or adjacent to the Project Footprint (i.e., soil compaction measures • Nelson Creek (BC-782) are consistent with adjacent undisturbed conditions with a target of < 20% increase in compaction level on the Project Footprint). When replacing topsoil, avoid track packing or compacting materials. KP 1172.24 • Avoid equipment access across waterbody once reclamation measures have been implemented unless approved watercourse crossing installations are in place. UTM: 10U 509872E 5453091N • Re-establish surface drainage patterns in wetlands characteristic of their pre-construction (baseline) contours during reclamation to maintain natural drainage patterns and avoid the creation of steep shorelines/embankments. KP 1173.14 to KP 1173.30 (WF-WPT-20) • The reclamation strategy will be compatible with the existing land use and the construction Line List. • Unnamed Channel (BC-782a) KP 1173.28 Operations UTM: 10U 508991E5453354N • Minimize the use of herbicides and consider non-chemical vegetation options as the primary methods to manage non-woody problem vegetation (e.g., mowing or hand-pulling). When non-chemical vegetation management options are KP 1173.31 to KP 1173.33 (WF-WPT-21) not practical (e.g., invasive plan removal) utilize spot treatment applications of herbicides as necessary • Unnamed Drainage (Railway Ditch) (BC-782b) KP 1173.32 UTM: 10U 508964E 5453386N KP 1173.34 to KP 1173.52 (WF-WPT-22) • Unnamed Drainage (BC-782c) KP 1173.35 UTM: 10U 508942E 5453411N KP 1173.58 to KP 1173.79 (WF-WPT-23) • Keswick Park Creek (BC-783a2[SAR]) KP 1173.71 UTM: 10U 508629E 5453572N • Unnamed Channel (BC-783a4 [SAR]) KP 1173.77 UTM: 10U 508571E 5453601N KP 1174.77 to KP 1174.91 (WF-WPT-24)

KP 1174.93 to KP 1175.10 (WF-WPT-25)

KP 1174.18 to KP 1175.69 (WF-WPT-26) • Austin Creek (BC-784a) KP 1175.36 UTM: 10U 507439E 5454571N KP 1176.08 to KP 1176.35 (WF-WPT-27)

KP 1176.38 to KP 1176.88 (WF-WPT-28) • Stoney Creek (BC-785[SAR]) KP 1176.65 UTM: 10U 506592E 5455441N

Notes: 1 KPs are approximate and based on pipeline route version SSEID005.14 where the centreline is located within critical habitat. 2 A desktop review using aerial imagery was conducted to review areas of critical habitat and eliminate areas that would not support the biophysical attributes of critical habitat. Locations of interest include these refined critical habitat areas and identified watercourse crossings.

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TABLE 4.3-10A

CANDIDATE CRITICAL HABITAT FOR BARN OWL (ECCC)

Locations within Critical Habitat Species (as provided by ECCC)1 Locations of Interest2 Recommended Mitigation Specific to Critical Habitat Barn Owl Surrey ID: WF-BO-06 Note, the mitigations listed as follows apply to the areas listed in the locations of interest column. Refer to the Barn Owl Mitigation and (Yorkson Creek) KP 1153.06 to KP 1153.53 Habitat Restoration Plan (see Section • KP 1153.06 to KP 1155.04 Prior to Clearing/Construction 6.4.2 of Volume 6 of the Environmental • Surrey ID: WF-BO-07 Commence clearing or construction between September 1 and February 28 to avoid the sensitive nesting and fledging period for barn owls (approximately March 1 to August 31). Where clearing and construction cannot be initiated in this Plans) period, Wildlife Resource Specialists will conduct area searches (where suitable nesting habitat occurs) prior to the commencement of clearing or construction to locate active barn owl nests along the Project Footprint. Area searches will (Port Kells Area) KP 1158.02 to KP 1158.12 include revisiting potential nest trees identified during previous field work and determining occupancy by recent evidence of use (e.g., pellets) and watching the potential nest structure from a safe distance to avoid disturbance. If • KP 1157.12 to KP 1158.40 necessary, and depending on the time of year, call-playback may be used and will follow available Provincial survey standards (e.g., Resources Information Standards Committee). In the event an active barn owl nest is identified, Coquitlam None mitigation will be approved by the Environmental Inspector with guidance from a Wildlife Resource Specialist, and in consultation with BC MFLNRORD as necessary, depending on the site-specific circumstances. The recommended (Colony Farms) setback for barn owl nests ranges from 1.5 tree lengths for urban areas, 100 m for rural and 200 m for undeveloped areas. During the breeding season, an additional 100 m “quiet” buffer is recommended. Measures will include one or a • KP 1167.50 to KP 1168.73 combination of the following: Coquitlam None – implement the appropriate protective setback until the nest is no longer active; or (West of Colony Farms) – engage a Wildlife Resource Specialist to monitor the nest during activity to ensure disturbance to nesting is avoided where site-specific circumstances may permit a reduction in the protective setback (e.g., adequate barrier exists • KP 1171.06 to KP 1173.16 between the nest and Project activity that effectively reduces sensory disturbance from the Project). If monitoring indicates Project activities are causing disturbance of an active nest (i.e., considerable behavioural changes from baseline), work will be temporarily halted, and corrective measures will be implemented (e.g., increase in protective setback, modification of Project activities within the setback). • Prior to clearing within identified areas with the biophysical attributes of nesting habitat, the Construction Manager and Environmental Inspector, with the assistance or a Wildlife Resource Specialist as necessary, will identify suitable nest trees located within the Project Footprint for replacement and retention. Identify those trees located on the edge of the Project Footprint that can be avoided where their retention will not affect construction execution, pipeline operations or maintenance activities, or conflict with applicable safety requirements (refer to Table 4.3-8B for suitable nest trees identified to date). Where suitable nest trees are identified for retention, retain adjacent trees to protect the structural integrity of the nest tree from blow down, where their retention will not affect construction execution, pipeline operations or maintenance activities, or conflict with applicable safety requirements. The retention of these trees will be reviewed and approved by the Environmental Inspector and the Construction Manager to ensure safety requirements are met. Clearly mark locations where clearing is to be narrowed or avoided to retain identified trees. • Complete danger tree assessments on the edge of the Project Footprint so that every effort can be made to retain (and if necessary, modify to remove dangerous portions) suitable nest trees as an alternate to complete removal. Those conducting danger tree assessments will be trained as per the Wildlife Danger Tree Assessor’s Course as administered by the Wildlife Tree Committee or will refer to the wildlife danger tree assessor’s material (course workbooks, guides) available on the Government of BC website (Government of BC 2017) for guidance on reasonable efforts and suitable mitigation in danger tree assessments.

During Clearing/Construction • In the event an active barn owl nest is discovered during clearing or construction, implement the Wildlife Species of Concern Discovery and Wildlife Encounter Contingency Plan (Appendix B of the EPP). Mitigation will be reviewed and approved by the Environmrnal Inspector with guidance from a Wildlife Resource Specialist depending on the site-specific circumstances. • If construction activities require the removal of a known barn owl nest, Trans Mountain will work with the appropriate regulatory authorities to discuss practical options and mitigation measures. Nest removal will only occur following confirmation that the nest is inactive (i.e., young have left the nest). When a known nest is removed an artificial nest box will be installed in nearby suitable habitat.

Reclamation • Use natural regeneration, seeding and planting of tree seedlings as specified in the Reclamation Management Plan (Section 9.0 of Volume 6 of the Environmental Plans). Seed mixes, species lists and seeding/planting prescriptions are provided in these plans. The reclamation strategy will be compatible with the existing land use and the construction Line List. • Where suitable nest trees are removed by the Project, selectively replace by installing artificial nest boxes. Nest boxes will be implemented in the approximate area from which suitable nest trees were removed, where landowner agreements permit.

Operations • Schedule vegetation management accordingly to avoid potential sensory disturbance during the breeding/fledgling period if an active barn owl nest is located adjacent to the Project Footprint. • Implement the appropriate vegetation management measures in consideration of species at risk and their habitat (e.g., restrict vegetation management to the minimum width required for the safe operation and inspection of the pipeline, and allow vegetation outside of this area to regenerate). • Minimize the use of herbicides. Consider non-chemical options as the primary method to manage non-woody problem vegetation (e.g., mowing or hand pulling). When non-chemical vegetation management options are not practical (e.g., invasive plant removal) utilize spot treatment applications of herbicides as necessary. Notes: 1 KPs are approximate and based on pipeline route version SSEID005.14 where the centreline is located within critical habitat. 2 A desktop review using recent aerial imagery was conducted to review areas of critical habitat and eliminate areas that would not support the nesting/roosting biophysical attributes of critical habitat (i.e., areas where forest cover is absent). The biophysical attributes were reviewed within the refined areas, where access was granted. Based on the field results, the locations of interest include areas that were identified to support nesting/roosting habitat. Any refined areas that were not surveyed due to land access restrictions are assumed to have biophysical attributes present and are therefore also included. Site-specific information on biophysical attributes of critical habitat that have been identified to date is provided in Table 4.3-10B.

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TABLE 4.3-12A

EARLY DRAFT CRITICAL HABITAT FOR WESTERN SCREECH-OWL (ECCC)

Locations within Critical Habitat Species (as provided by ECCC)1 Locations of Interest2,3 Recommended Mitigation Specific to Critical Habitat Western Screech-owl kennicottii KP 1134.88 to KP 1145.83 ID: WF-WSO-26 Note, the mitigations listed below applies to the areas listed in the locations of interest column for both western screech owl macfarlanei ssp. and kennicottii ssp. subspecies KP 1145.25 to KP 1145.38 Prior to Clearing/Construction Refer to the Western Screech- • Initiate clearing and construction (where these activities are continuous) between August 26 and February 16 to avoid the sensitive nesting and fledging period for western screech-owl (approximately February 17 to August 25 ), where feasible. owl Mitigation and Habitat Where clearing and construction cannot be initiated outside of this period, a Wildlife Resource Specialist will conduct area searches in locations of suitable habitat prior to clearing or construction to locate active western screech-owl nests along the Restoration Plan (see Section Project Footprint. Area searches will include revisiting potential nest trees identified during previous field work and determining occupancy by recent evidence of use and watching the potential nest from a safe distance to avoid disturbance. If 6.4.12 of Volume 6 of the necessary, and depending on the time of year, call-playback may be used and will follow available provincial survey standards. In the event an active nest is identified, mitigation will be approved by the Environmental Inspector with guidance from a Environmental Plans) Wildlife Resource Specialist, and in consultation with BC MFLNRORD as necessary, depending on the site-specific circumstances. Mitigation will consider the site-specific circumstances. The location of the active nest will be reviewed relative to Project activity, as well as the type of activity. The recommended buffer for western screech-owl ranges from 1.5 tree lengths for urban areas, 200 m for rural and 500 m for undeveloped land use. During the breeding season, an additional 100 m “quiet” buffer is recommended. Within the Project Footprint, Early Draft critical habitat for western screech-owl occurs in urban, rural and undeveloped landscapes. The buffer may be reduced if site-specific circumstances permit (e.g., adequate barrier exists between active nest and Project activity that effectively reduces sensory disturbance from the Project), and a Wildlife Resource Specialist monitors the nest during activity to ensure disturbance to nesting is avoided. If monitoring indicates Project activities are causing disturbance of an active nest (i.e., considerable behavioural changes from baseline), work will be modified or temporarily halted and corrective measures will be implemented (e.g., increase in protective buffer, modification of Project activities within the buffer). • Prior to clearing within identified areas with the biophysical attributes of nesting habitat, the Construction Manager and Environmental Inspector, with the assistance of a Wildlife Resource Specialist as necessary, will identify suitable nest trees located within the Project Footprint for replacement and retention. Identify those trees located on the edge of the Project Footprint that can be avoided where their retention will not affect clearing or construction execution, pipeline operations or maintenance activities or conflict with applicable safety requirements (refer to Table 4.3-10B for suitable nest trees identified to date). Where suitable nest trees are identified for retention, retain adjacent trees to protect the structural integrity of the nest tree from blow down, where their retention will not affect clearing or construction execution, pipeline operations or maintenance activities, or conflict with applicable safety requirements. The retention of these trees will be reviewed and approved by the Environmental Inspector and the Construction Manager to ensure safety requirements are met. Clearly mark locations where clearing is to be narrowed or avoided to retain identified trees. • Complete danger tree assessments on the edge of the Project Footprint so that every reasonable effort can be made to retain (and if necessary, modify to remove dangerous portions) of suitable nest trees as an alternate to complete removal. Those conducting danger tree assessments will be trained as per the Wildlife Danger Tree Assessor’s Course as administered by the Wildlife Tree Committee or will refer to the wildlife danger tree assessor’s material (course workbooks, guides) available on the Government of BC’s website (Government of BC 2017) for guidance on reasonable efforts and suitable mitigation in danger tree assessments.

During Clearing/Construction • In the event an active western screech-owl nest is discovered during clearing or construction, implement the Wildlife Species of Concern and Wildlife Encounter Contingency Plan. Mitigation will be reviewed and approved by the Environmental Inspector with guidance from a Wildlife Resource Specialist depending on the site-specific circumstances. • If clearing or construction activities require the removal of a known western screech-owl nest, Trans Mountain will work with BC MFLNRORD to discuss practical options and mitigation measures. Nest removal will only occur following confirmation that the nest is inactive and an artificial nest box will be installed in nearby suitable habitat.

Reclamation • Use a combination of methods to create nesting habitat where suitable nest trees are removed by the Project. Options to create nesting habitat include: – installing artificial nest boxes; – girdling the stem of a suitable tree; or – topping a suitable tree >7 m aboveground. • The measure will be determined and approved by the Environmental Inspector and Construction Manager to ensure compliance with safety requirements and will be implemented in the approximate area from which suitable nest trees were removed or within proximity of suitable foraging and roosting habitat. • Use natural regeneration, seeding and planting of tree seedlings and shrubs as specified in the Reclamation Management Plan (Section 9.0 of Volume 6 of the Environmental Plans) and Riparian Habitat Management Plan (Section 8.0 of Volume 6 of the Environmental Plans). Seed mixes, species lists and seeding/planting prescriptions are provided in these plans. The reclamation strategy will be compatible with the existing land use and the construction Line List.

Operations • Schedule vegetation management accordingly to avoid potential sensory disturbance during the breeding/fledgling period if an active western screech-owl nest is located adjacent to the right- of-way. • Implement the appropriate vegetation management measures in consideration of species at risk and their habitat (e.g., restrict vegetation management to the minimum width required for the safe operation and inspection of the pipeline, and allow vegetation outside of this area to regenerate). • Minimize the use of herbicides. Consider non-chemical options as the primary method to manage non-woody problem vegetation (e.g., mowing or hand pulling). When non-chemical vegetation management options are not practical (e.g., invasive plant removal) utilize spot treatment applications of herbicides as necessary. Notes: 1 KPs are approximate and based on pipeline route version SSEID005.14 where the centreline is located within critical habitat. 2 A detailed review of aerial imagery and Terrestrial Ecosystem Mapping was conducted to focus on identifying mature and old forest in floodplains and sites with suitable soil nutrient and moisture regimes that have the potential to provide nesting habitat for western screech-owl macfarlanei subspecies, refining the total area of focus to approximately 18.1 km. The biophysical attributes were reviewed within the refined areas, where access was granted. Based on the field results, the locations of interest provided include the areas that were identified to support nesting habitat. Any refined areas that were not surveyed due to land access restrictions are assumed to have biophysical attributes present and are therefore also included. Locations outside the original refined areas identified to support nesting habitat during field work is also included. Site-specific information on biophysical attributes of critical habitat that have been identified to date is provided in Table 4.3-12B. 3 A desktop review using recent aerial imagery was conducted to review areas of critical habitat and eliminate areas that would not support the nesting biophysical attributes of critical habitat for western screech-owl kennicottii subspecies (i.e., areas where forest cover is absent). The biophysical attributes were reviewed within the refined areas, where access was granted. Based on the field results, the locations of interest provided include the areas that were identified to support nesting/roosting habitat. Any refined areas that were not surveyed due to land access restrictions are assumed to have biophysical attributes present and are therefore also included. No site-specific biophysical attributes of critical habitat have been identified to date.

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TABLE 4.3-13

EARLY DRAFT CRITICAL HABITAT FOR OREGON SPOTTED FROG (ECCC)

Locations within Critical Habitat Species (as provided by ECCC) Locations of Interest1 Recommended Mitigation Specific to Critical Habitat Oregon Spotted Frog Langley Area (BC MFLNRORD eDNA Site) ID: WF-OSF-42 Note, the mitigations listed as follows apply to the areas listed in the locations of interest column. Refer to the Oregon Spotted Frog KP 1150.18 Mitigation and Habitat Restoration Unnamed Channel (BC-759a) Prior to Clearing/Construction Plan (see Section 6.4.7 of Volume 6 UTM: 10U 528030E 5446435N • Schedule clearing and construction, where practical, from August 15 to September 30 (pending weather conditions) during the active period, and to avoid the overwintering period (October of the Environmental Plans). ID: WF-OSF-43 1 to January 31) and breeding period (February 1 to May 31) to facilitate successful salvage of individuals. This schedule also aligns with fish timing windows. KP 1150.78 • Where Project clearing and construction occurs within areas identified as Oregon spotted frog habitat, obtain the necessary Permit for a salvage. Adhere to the conditions of the Permit. Any Unnamed Drainage (BC-759b) relocation of Oregon spotted frog will be conducted by a qualified Wildlife Resource Specialist. UTM: 10U 527901E 5446983N During Clearing/Construction ID: WF-OSF-44 • In the event an Oregon spotted frog or active breeding site is found during construction, stop work immediately and implement the Wildlife Species of Concern Discovery and Encounter KP 1150.83 Contingency Plan (see Appendix B of the Pipeline EPP). Unnamed Drainage (BC-759c) • Use open bottom culverts in identified Oregon spotted frog watercourses, where approved ramp and culvert vehicle crossing installations are to be left in place. Ensure compliance with all UTM: 10U 527901E 5447024N respective Provincial guidelines (e.g., BC MOECCS, BC Oil and Gas Commission) when installing open bottom culverts (see Vehicle Crossing – Ramp and Culvert Dwg. 35 in Appendix C of ID: WF-OSF-45 the Pipeline EPP). KP 1150.99 Unnamed Drainage (Wetland) (BC-759c1) Reclamation UTM: 10U 527899E 5447184N • Avoid equipment access across watercourses once restoration measures have been implemented unless approved watercourse crossing installations are in place. ID: WF-OSF-46 • Re-establish surface drainage patterns in wetlands characteristic of their pre-construction (baseline) contours during restoration to maintain natural drainage patterns and avoid the creation KP 1151.11 of steep shorelines/embankments, except where it is not safe to do so due to the risk of slope failure. Unnamed Drainage (Wetland) (BC-759d) • Use natural regeneration, seeding and planting of rooted plant materials as specified in the Reclamation Management Plan (Section 9.0 of Volume 6 of the Environmental Plans) and UTM: 10U 527847E 5447250N Riparian Habitat Management Plan (Section 8.0 of Volume 6 of the Environmental Plans Seed mixes, species lists, and seeding/planting prescriptions are provided in these plans. The ID: WF-OSF-47 reclamation strategy will be compatible with the existing land use and the construction Line List. KP 1151.53 Unnamed Channel (Roadside Ditch) (BC-759d1) Operations UTM: 10U 527436E 5447356N • Implement the appropriate vegetation management measures in consideration of species at risk and their habitat (e.g., restrict vegetation management to the minimum width required for ID: WF-OSF-48 the safe operation and inspection of the pipeline, and allow vegetation outside of this area to regenerate). KP 1151.55 • Use selective hand-clearing as the preferred method of vegetation control in riparian areas of watercourses with high potential to support Oregon spotted frog. Do not leave cut vegetation in Unnamed Channel (Roadside Ditch) (BC-759d2) a watercourse. UTM: 10U 527421E 5447360N • Minimize the use of herbicides within Oregon spotted frog habitat. Consider non-chemical vegetation options as the primary methods to manage non-woody problem vegetation (e.g., mowing or hand-pulling). When non-chemical vegetation management options are not practical (e.g., invasive plant removal) utilize spot treatment applications of herbicides as necessary. ID: WF-OSF-49 KP 1151.96 Unnamed Channel (Roadside Ditch) (BC-759e) UTM: 10U 527021E 5447455N ID: WF-OSF-50 KP 1152.00 East Munday Creek (BC-766) UTM: 10U 526982E 5447466N ID: WF-OSF-51 KP 1153.12 Unnamed Drainage (Wetland) (BC-766a) UTM: 10U 525904E 5447756N ID: WF-OSF-52 KP 1153.31 Unnamed Drainage (BC-766c) UTM: 10U 525714E 5447804N ID: WF-OSF-53 KP 1153.55 West Munday Creek (BC-767) UTM: 10U 525487E 5447845N ID: WF-OSF-54 KP 1153.84 Yorkson Creek (BC-768) UTM: 10U 525199E 5447884N ID: WF-OSF-55 KP 1154.27 Unnamed Channel (BC-768a) UTM: 10U 524770E 5447934N Note: KPs are approximate and based on pipeline route version SSEID005.14 where the centreline is located within critical habitat.

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4.4 Wildlife and Wildlife Habitat Environmental Protection Measures Additional general mitigation measures pertaining to the wildlife features and provincially-identified wildlife habitat areas detailed in Sections 4.1 and 4.2 above, respectively, can be found in Table 4.4-1.

TABLE 4.4-1

WILDLIFE AND WILDLIFE HABITAT ENVIRONMENTAL PROTECTION MEASURES

Concern Province / Location Recommended Mitigation Great Blue Heron Nesting Colony Alberta and BC • In the event a great blue heron nesting colony is discovered implement the appropriate buffer and schedule activities outside of the sensitive nesting season (see below). • In Alberta, activities are not recommended within 1,000 m of a great blue heron colony. Consult with a wildlife resource specialist and the Appropriate Government Authority to discuss practical options and mitigation measures for activities within this buffer. Measures may include scheduling activities outside of the nesting period (i.e., schedule activities between September 1 and February 28). • In BC, great blue heron nests are protected year-round under the BC Wildlife Act. BC MOECCS (BC 2014) recommends the following setback distances: 300 m (undeveloped), 200 m (rural), 60 m (urban) with an additional 200 m “quiet” buffer during the nesting season. The least risk window is from September 1 to January 15. • If construction activities require the removal of a great blue heron colony, Trans Mountain will work with the Appropriate Government Authorities to develop practical options and mitigation measures. Nest removal will only occur when the nests are inactive (i.e., scheduled outside of the nesting season). Bats Alberta and BC • In the event bat hibernacula or roosts are discovered contact the Appropriate Government Authority to discuss practical options and mitigation measures. Measures may include establishing protective buffers and/or modifying the construction schedule to avoid activity during sensitive periods (see below). • In Alberta, roosts and hibernation sites of northern long-eared bats have a year-round 300 m setback from high disturbance activities; 100 m setback from medium disturbance activities and a 50 m setback from low disturbance activities. (Government of Alberta 2018). • In BC, protect bat roosts from disturbance by humans and other sensory disturbances (BC MOE 2014a). Implement a 125 m buffer from bat hibernacula (from October 1 to April 30) or maternity roost (from May 1 to August 31) (BC MWLAP 2004b). Consult with BC MFLNRORD where disturbance of a hibernacula or maternity roost is unavoidable to discuss practical options and mitigation measures. • Do not blast, remove rock or talus, or construct new roads in the area surrounding a hibernacula or maternity roost unless there is no other practical option. Consult with BC MFLNRORD to discuss alternate mitigation (BC MWLAP 2004b). • Schedule blasting that may occur within 1 km of Keen’s long-eared myotis maternity roosts and hibernacula to occur outside the period from October 1 to May 31 (BC MWLAP 2004b). Consider applying this best practice to other bat species. Mammal Den Alberta and BC • Contact a Wildlife Resource Specialist to discuss the appropriate mitigation in the event an active den is discovered on or near the work site. Mitigation may include establishing protective buffers, monitoring the den and/or modifying the construction schedule to avoid activity until the den is no longer active. • In Alberta, in the event an active grizzly bear den is discovered, a setback of 750 m for high disturbance activities (i.e., conventional pipelines) from October 1 to April 30 is recommended (Government of Alberta 2018). In the event other active mammal dens are found (e.g., black bear den), a 100 m setback is recommended (Government of Alberta 2018). • In BC, a setback of 50 m from active bear dens is recommended (BC OGC 2016). If a grizzly bear den is found, contact BC MOECCS for the appropriate buffer. Mineral Lick Alberta and BC • Implement a 100 m buffer in the event a mineral lick is identified (Government of Alberta 2018; BC OGC 2016). BC MFLNRORD recommends a 250 m setback from mineral licks that are utilized by mountain caribou (BC MFLNRO 2014). In the event re-configuring TWS is not feasible to maintain the minimum setback from a mineral lick, consult with a Wildlife Resource Specialist to discuss practical options and mitigation strategies. • Leave a gap in set-up pipe within the area of the mineral lick to allow wildlife to access the mineral lick. The locations of the gaps in strung pipe should coincide with gaps in strippings, spoil, snow and rollback windrows. • Maintain the integrity of trails to mineral licks and do not isolate from nearby escape cover. Beaver Dams/Lodges Alberta and BC • In Alberta, contact AEP’s Fish and Wildlife Authorities and registered trapper(s) for approval (i.e., Wildlife Damage Control Licence) to remove beaver, beaver dams and beaver lodges, where warranted. • In BC, in the event beaver dams or lodges will be disturbed, submit a notification to the appropriate regional Habitat Officer of the BC MFLNRORD at least 45 days prior to beaver dam removal, as per Section 40 of the Water Regulation. Following this notification, obtain a BC MFLNRORD Wildlife Sundry Permit to remove a beaver dam. Standards and best practices for beaver dam removal identified in the BC Standards and Best Practices for Instream Works (BC MWLAP 2004a) will be applied. Raptor Nest / Burrowing Owl Burrow Alberta and BC (for raptors) BC (for burrowing owl) • Contact a Wildlife Resource Specialist to discuss the appropriate mitigation in the event an active raptor nest is discovered on or near the work site. Mitigation may include establishing protective buffers, monitoring the nest and/or modifying the construction schedule to avoid activity until the nest is no longer active. • In Alberta, active raptor nests have a 100 m to 1,000 m setback, depending on the species (Government of Alberta 2018). • In BC, active raptor nests have a 50 m to 500 m setback, depending on the surrounding land use and species (BC MOE 2013). • In BC, burrowing owl burrows have a 500 m setback in undeveloped areas. Contact BC MFLNRORD for appropriate buffer in rural and urban areas. Reptiles Alberta and BC • In Alberta, a setback of 500 m for high disturbance activities (i.e., conventional pipelines) is recommended in the event an active wandering or red-sided garter snake hibernacula is discovered (Government of Alberta 2018). • In BC, refer to Table 4.3-1D for mitigation related to Great Basin gophersnake and western rattlesnake. For all other snake species, in the event an active snake hibernaculum is identified, implement a 150 m buffer (BC MOE 2014), and avoid activity during the period of April 15 to September 30 (BC MWLAP 2004b), to the extent feasible. • Implement the Wildlife Conflict Management section (Appendix G of the Pipeline EPP) in the event a snake or painted turtle is encountered during Project activities. Wildlife Species Discovery or Encounter Alberta and BC • Implement the Wildlife Species of Concern Encounter and Discovery Contingency Plan (Appendix B of the Pipeline EPP) in the event a wildlife species of concern or habitat feature is identified during construction.

References Personal Communication Surgenor, J. Wildlife Biologist. BC Ministry of Forests, Lands and Natural Resource Operations. Kamloops, BC. Literature Cited. British Columbia Ministry of Forests, Lands, and Natural Resource Operations. 2014. A Compendium of Wildlife Guidelines for Industrial Development Projects in the North Area, British Columbia. Interim Guidance. 206 pp. British Columbia Ministry of Water, Land and Air Protection. 2004a. Standards and Best Practices for Instream Works. WLAP BMP Series. March 2004. 168 pp. British Columbia Ministry of Water, Land and Air Protection. 2004b. Wildlife Habitat Features Summary of Management Guidelines: Northern Interior Forest Region. British Columbia Ministry of Water, Land and Air Protection, Biodiversity Branch. Victoria, BC. 117 pp. British Columbia Oil and Gas Commission. 2016. Environmental Protection and Management Guidebook. Version 2.2., March 2016. 71 pp. British Columbia Oil and Gas Commission. 2016. Environmental Protection and Management Guideline. Version 2.2., March 2016. 71 pp. British Columbia Oil and Gas Commission (BC OGC). 2018. Environmental Protection and Management Guideline. Version 2.7., December 2018. 126 pp. Government of Alberta. 2018. Master Schedule of Standards and Conditions. December 2018. 308 pp. AEP = Alberta Environment and Parks 4.5 Wildlife and Wildlife Habitat on Federal Lands A permit is required under Section 73 of the SARA if those persons conducting activities on Federal lands that affect species listed as extirpated, endangered or threatened on Schedule 1 of SARA, contravene SARA’s general prohibitions. General prohibitions state that no person shall kill, harm, harass, capture or take a wildlife species (Section 32) or damage or destroy the residence of one or more individuals of a wildlife species (Section 33) that is listed as extirpated, endangered or threatened on Schedule 1 of SARA. SARA Section 73 Permit Applications are under review by ECCC. SHEET 24 of 47

5.0 VEGETATION 5.1 Rare Plants and Rare Ecological Communities Information for rare plants and rare ecological communities can be found in Table 5.1-2. Adhere to the General Pipeline Construction Mitigation Measures found in Section 7.0 of the Pipeline EPP (Volume 2 of the Environmental Plans). Follow the Rare Ecological Community and Rare Plant Population Management section (Appendix G of the Pipeline EPP). Refer to the Rare Ecological Communities or Rare Plant Discovery Contingency Plan, in the event previously unidentified potential ecological communities or rare plants (vascular plant or bryophyte including moss or liverwort or lichens) are discovered on or within 30 m of the pipeline construction footprint prior to or during construction (Appendix B of the Pipeline EPP). Final and Proposed critical habitat has been identified in a posted (Final or Proposed) Recovery Strategy. Where this has been mapped, ECCC is working to make the spatial boundaries publicly available. Detailed information on candidate and Early Draft critical habitat (mapped areas) is not publicly available, but was provided to Trans Mountain by ECCC for Project planning purposes only. The status of critical habitat (i.e., Proposed, Candidate, Early Draft) and the locations may change prior to Project activity. The information on Candidate and Early Draft critical habitat provided in the following tables and on the EAS was prepared by Trans Mountain based on data from ECCC and is provided with the permission of ECCC.

TABLE 5.1-2

SUMMARY OF RARE PLANTS AND RARE ECOLOGICAL COMMUNITIES IN BRITISH COLUMBIA

Feature Type Species Feature ID1 Code Species (Rank)2 PNG Notation UTM3 KP Start4 KP End4 Abundance and Distribution Relation to Footprint Site-Specific Mitigation VG-203 Rare Ecological Community Bebb's willow/bluejoint A-088-H/092-G-02 10U 529827E 5444346N 1146.03 1146.09 Rare community identified during wetland Community spans the entire width of the To the extent feasible, avoid placing windrowed material in wetlands during grading and SALIBEB reedgrass 10U 529769E 5444355N surveys. pipeline construction footprint and extends off to avoid placing trench spoil within a 10 m radius of the occurrence if it is located on the spoil Salix bebbiana / both sides. side or temporarily cover the site (e.g., with snow, geotextile pads, flex net, swamp mats) if Calamagrostis canadensis this is travel side and stripping is not required. (S3, Blue) If the area will be stripped, keep wetland soils separate from upland soils and identify with labelled stakes or flags. Replace salvaged wetland substrates/upper soils in the appropriate order following construction. Ensure pre-construction contours are restored to maintain site hydrology. VG-207 Rare Ecological Community common cattail Marsh A-041-J/92-G-02 10U 518061E 5449709N 1161.89 1162.26 Community was observed for 200 m in a wetland Community occurs on the pipeline construction It is anticipated that the directional drill planned at this location will mostly avoid this TYPHLAT Typha latifolia marsh 10U 517748E 5449941N crossed by the pipeline construction footprint. footprint and extends off to the southwest. community. Mitigation is provided for the corner of the wetland where the HDD pad is (S3, blue) planned and, in the event, the directional drill fails. To the extent feasible, avoid placing windrowed material in wetlands during grading and avoid placing trench spoil within a 10 m radius of the occurrence if it is located on the spoil side, or temporarily cover the site (e.g., with snow, geotextile pads, flex net, swamp mats) if this is travel side and stripping is not required. If the area will be stripped, keep wetland soils separate from upland soils and identify with labelled stakes or flags. Replace salvaged wetland substrates/upper soils in the appropriate order following construction. Ensure pre-construction contours are restored to maintain site hydrology. VG-228 BIDEAMP_HIST Historical Vancouver Island B-03-D/92-G-07 to 10U 506352E 5455855N 1177.04 1177.33 Five Vancouver Island beggartick plants were Area of potential habitat is entirely within the Include this previously observed Vancouver Island beggarticks occurrence on the EAS and in beggarticks occurrence C-03-D/92-G-07 10U 506328E 5455664N observed at this location in 1999. Surveys in pipeline construction footprint. the post-construction monitoring of rare plants to determine it Vancouver Island beggarticks are Biden amplissima historical 2014 and 2017 did not locate any plants. The area present post-construction. occurrence that contains habitat similar to that where plants Monitor and manage encroachment of invasive non-native/alien species within the area of (S3, blue, SARA-designation were observed in 1999 is 190 m by 20 m. potential habitat (identified on the EAS) during post-construction monitoring. Special Concern) VG-208 Early Draft Critical Habitat Roell’s brotherella moss Early D-015-D/092-G-07 to 10U 504971E 5457066N 1179.86 1180.92 No specimens of Roell’s brotherella moss were A Roell’s brotherella moss Early Draft critical Refer to EAS for extent of critical habitat on the pipeline construction footprint and inform all BROTROE Draft critical habitat D-025-D/092-G- 07 10U 505000E 5457225N (Burnaby Storage observed during ground surveys within the habitat polygon (Environment Canada 2015c) users of these boundaries, and of associated site-specific mitigation and access restrictions. Brotherella roellii Early Draft Terminal) pipeline construction footprint. spans the width of the pipeline construction Restore or enhance biophysical attributes of critical habitat by revegetating the pipeline critical habitat footprint and extends off in both directions as construction footprint using locally collected native grasses, forbs, tree or shrub seeds and well as intersecting the footprint of the Burnaby propagation materials where feasible to improve soil structure and reduce soil erosion. Storage Terminal. VG-229 BROTROE_ECOLATR8- 1 Location of interest that A 025-D/092-G-07 to 10U 504633E 5457369N 1179.98 1180.06 Young mixed forests of red alder, bigleaf maple, Location of interest with ecological attributes for No mitigation is recommended at this location as the treed riparian area will not be possesses the ecological B 025-D/092-G-07 10U 504695E 5457444N (Burnaby Storage paper birch and black cottonwood. The creek Roell’s brotherella moss is within the existing reclaimed following construction. attributes required for Roell’s 10U 504925E 5457242N Terminal) beds have been altered by concrete drainage terminal. brotherella moss within Roell’s 10U 505116E 5457115N pathways. brotherella moss Early Draft 10U 504856E 5457125N critical habitat Notes: 1 Vegetation Feature IDs do not correspond to any Report IDs and have been assigned to aid the users of the EAS to find species-specific mitigations measures. 2 Provincial (S) ranks are assigned by the Provincial CDC(s). Ranks range from 1 (five or fewer occurrences) to 5 (demonstrably secure under present conditions); all definitions below are adapted from NatureServe (2015). S1 = Critically Imperiled: because of extreme rarity or because of some factor(s) making it especially vulnerable to extirpation. Typically, five or fewer occurrences or very few remaining individuals (< 1,000). S2 = Imperiled: because of rarity or because of some factor(s) making it very vulnerable to extirpation. Typically, 6-20 occurrences or few remaining individuals (1,000-3,000). S3 = Vulnerable: because rare and uncommon, or found in a restricted range (even if abundant at some locations), or because of other factors making it vulnerable to extirpation. Typically, 21-100 occurrences or between 3,000 and 10,000 individuals. S#S# = Range Rank: a numeric range rank (e.g., S2S3) is used to indicate the range of uncertainty about the exact status of the element. SU = Unrankable: currently unrankable due to lack of information or due to substantially conflicting information about status or trends. S#? = Inexact numeric rank: denotes inexact numeric rank. Red-List: Ecological communities or rare vegetation species which either no longer exist, face imminent extirpation or extinction, or are likely to become Endangered or Threatened if limiting factors are not reversed. Blue-List: Ecological communities or rare vegetation species considered at risk (i.e., having characteristics making them sensitive or vulnerable to human activities or natural events). 3 UTMs provided are either those collected in the field or, for certain polygon features such as wetlands and critical habitat, the locations where the polygon edges intersect the Project Footprint. 4 All KPs are approximate. Sources: British Columbia Conservation Data Centre. 2016. BC Species and Ecosystems Explorer. Website: http://www.env.gov.bc.ca/atrisk/toolintro.html. Accessed: June 2019. British Columbia Ministry of Environment. 2015. Provincial Red and Blue Lists. Ministry of Environment. Website: http://www.env.gov.bc.ca/atrisk/red-blue.html. Accessed: June 2019. Committee on the Status of Endangered Wildlife in Canada. 2015. Canadian Species at Risk. Website: http://www.cosewic.gc.ca/eng/sct5/index_e.cfm. Accessed: October 2015 NatureServe. 2015. NatureServe Explorer – An Online Encyclopedia of Life. Website: http://www.natureserve.org/explorer/index.htm. Accessed: June 2019 SHEET 25 of 47

5.2 Old Growth Management Areas For more information about OGMA mitigation, refer to the Old Growth Management Areas Mitigation and Replacement Plan provided in Appendix G of the Pipeline EPP as well as the forest health mitigation measures provided in Section 8 of the Pipeline EPP (Volume 2 of the Environmental Plans).

5.3 High Weed Density Areas Information for high weed density areas in BC are presented in Table 5.3-2. For more information about weed mitigation, refer to the Weed and Vegetation Management section of the Biosecurity Management Plan (Appendix G of the Pipeline EPP), as well as the general mitigation measures in Section 7.0 of the Pipeline EPP (Volume 2 of the Environmental Plans).

TABLE 5.3-2

HIGH WEED DENSITY AREAS IN BC

KP Start KP End EAS Label / Species Code Weed Species PNG Notation Start UTM End UTM Mitigation 1163.49 1165.40 HI:MN:TC:CT Himalayan blackberry, small touch-me-not, common tansy, Canada thistle B-052-K/092-G-02 to D-054-K/092-G-02 10U 516824E 5450690N 10U 515074E 5451063N Ensure topsoil is stored on the land parcel from where it was salvaged, where 1174.77 1175.58 HI:AC:IM Himalayan blackberry, reed canarygrass, policeman's helmet D-082-L/092-G-02 to B-092-L/092-G-02 10U 507743E 5454283N 10U 507227E 5454665N feasible. Stake or flag topsoil material windrows containing high density weeds. Refer to Sections 6.0 and 7.0 of the Pipeline EPP (Volume 2 of the 1176.76 1177.11 AC:JK:SB reed canarygrass, Japanese knotweed, scotch broom B-003-D/092-G-07 to B-003-D/092-G-07 10U 506569E 5455446N 10U 506330E 5455644N Environmental Plans) and the Weed and Vegetation Management section of 1179.59 1179.90 YG yellow archangel D-015-D/092-G-07 to A-025-D/092-G-07 10U 504970E 5456713N 10U 505049E 5457207N the Biosecurity Management Plan (Appendix G of the Pipeline EPP) for mitigation measures to be implemented in areas where high density weeds are encountered.

5.4 Cryptogamic Crust Salvage Areas For more information about cryptogamic crust, refer to the Grassland Survey and Mitigation section (Appendix G of the Pipeline EPP).

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6.0 WETLANDS Detailed information on the wetlands crossed are presented in Table 6.0-2. For more information on mitigation measures to be implemented during pipeline and vehicle crossings, see Section 14.0 of the Pipeline EPP (Volume 2 of the Environmental Plans), as well as the Wetland Survey and Mitigation section (Appendix G of the Pipeline EPP). Associated environmental features (i.e. rare plants, wildlife and watercourses as well as navigability) have been included under the “Notes” column.

TABLE 6.0-2

SUMMARY OF WETLANDS ENCOUNTERED IN BRITISH COLUMBIA

Length Crossed Temporary Offset Wetland by Reclamation on Mitigation Off Start PNG KP KP Area Area Within Footprint Footprint (post- Footprint (pre- and Feature ID Wetland Class Wetland Unique ID Notation End PNG Notation Start UTM End UTM Start End (ha) Footprint (ha) (km) Reclamation construction) post-construction) Notes1 WT-782/WT-7832 Riparian Swamp (shrubby Abbo-Burn_WC1115point7 A-088-H/092-G-02 A-088-H/092-G-02 10U 529825E 10U 529768E 1146.03 1146.08 0.67 0.07 0.06 Shrub Staking / Bare ------swamp) (Ws03) 5444347N 5444355N Root Stock A-088-H/092-G-02 A-088-H/092-G-02 10U 529767E 10U 529753E 1146.08 1146.09 0.00 0.01 5444355N 5444349N WT-1118.442 Flat Swamp (shrubby Abbo-Burn_W1118point4 A-020-I/092-G-02 A-020-I/092-G-02 10U 527964E 10U 527962E 1151.01 1151.0 1.79 0.00 0.00 -- Use reclamation -- -- swamp) (Ws02) 5447208N 5447208N measures as per Moderate habitat function in Riparian A-020-I/092-G-02 B-020-I/092-G-02 10U 10U 527707E 1151.01 1151.25 0.83 0.24 Habitat Management 527936.67E 5447263N Plan during 5447207N reclamation (post- construction) WT-1118 Basin Marsh (emergent Abbo-Burn_W1119point8 C-011-J/092-G-02 C-011-J/092-G-02 10U 526846E 10U 526653E 1152.14 1152.34 0.43 0.39 0.20 ------Water anticipated to be marsh) 5447491N 5447557N present year-round WT-1117 Basin Marsh (seasonal Abbo-Burn_W1120point3 C-011-J/092-G-02 C-012-J/092-G-02 10U 526629E 10U 525795E 1152.37 1153.24 9.14 1.52 0.87 ------emergent marsh) (Wm-other) 5447571N 5447810N Wetland Complex Basin Marsh (seasonal Abbo-Burn_W1120point4 C-012-J/092-G-02 C-012-J/092-G-02 10U 525775E 10U 525502E 1153.25 1153.53 2.92 0.82 0.28 Shrub Staking / Bare ------52 emergent marsh) (Wm-other) 5447782N 5447852N Root Stock Basin Marsh (seasonal Abbo-Burn_NW1120point9 C-012-J/092-G-02 C-012-J/092-G-02 10U 525510E 10U 525462E 1153.52 1153.57 0.21 0.10 0.05 emergent marsh) (Wm-other) 5447831N 5447832N Riparian marsh (seasonal Abbo-Burn_W1121 C-012-J/092-G-02 D-013-J/092-G-02 10U 525484E 10U 525257E 1153.55 1153.78 1.28 0.63 0.23 emergent marsh) (Wm-other) 5447865.63N 5447896N WT-1117.123 Artificial Pond DR_12_16 C-029-J/092-G-02 C-029-J/092-G-02 10U 519270E 10U 519259E 1160.25 1160.26 3.9 0.00 0.01 ------5448715N 5448715N WT-1224 Flat Swamp (shrubby Abbo-Burn_W1129point51 B-040-J/092-G-02 C-040-J/092-G-02 10U 518544E 10U 518374E 1161.20 1161.44 4.54 0.18 0.24 Shrub Staking / Bare ------swamp) 5449207N 5449383N Root Stock Wetland Complex Flat Swamp (mixedwood Abbo-Burn_W1129point5 D-031-K/092-G-02 A-041-K/092-G-02 10U 518060E 10U 518033E 1161.90 1162.00 3.35 0.15 0.11 ------53 treed swamp) 5449710N 5449714N Basin Marsh (seasonal Abbo-Burn_W1129point5 D-031-K/092-G-02 A-041-K/092-G-02 10U 518029E 10U 517748E 1161.92 1162.28 3.35 0.36 0.37 emergent marsh) (Wm05) 5449705N 5449941N Basin Marsh (seasonal Abbo-Burn_W1129point5 D-031-K/092-G-02 D-031-K/092-G-02 10U 518032E 10U 517977E 1161.92 1161.99 3.35 0.03 0.07 emergent marsh) (Wm05) 5449715N 5449761N Basin Marsh (seasonal Abbo-Burn_W1129point5 A-041-K/092-G-02 A-041-K/092-G-02 10U 517970E 10U 517970E 1162.00 1162.00 3.35 0.00 0.00 emergent marsh) (Wm05) 5449767N 5449768N WT-1213 Artificial Pond Abbo-Burn_NW1146point5 A-015-D/092-G-07 A-015-D/092-G-07 10U 504984E 10U 504974E 1179.35 1179.39 0.03 0.03 0.03 ------5456497N 5456529N Notes: 1 Wetlands where water is anticipated to be present year-round are based on typical weather conditions. Presence of water may vary from year-to-year. 2 Wetland crossed more than once by the Project Footprint.

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7.0 WATERCOURSES/HYDROLOGY Information for watercourses crossed are presented in Table 7.1-2. For more information about the pipeline and vehicle crossing methods, see Section 14 of the Pipeline EPP (Volume 2 of the Environmental Plans) as well as the Watercourse Crossing Inventory (Section 8.8 of Volume 6 of the Environmental Plans).

7.1 Watercourses TABLE 7.1-2

SUMMARY OF WATERCOURSES IDENTIFIED IN BRITISH COLUMBIA

Feature ID Watercourse Name/ Fish Least Risk Biological Proposed Primary Proposed Pipeline Vehicle Crossing Riparian (PXID) KP (005)3 Classification UTM Presence Window Proposed Pipeline Contingency Method Reserve Zone Site-Specific Comments5 Reclamation4 BC-751b 1145.00 Unnamed Drainage [NCD] 10U 530793E - Open Isolation if water present - Ramp and Culvert - Two marginally defined drainages that converge together at the centre of A or B (W1913.3) 5444100N / Open-cut if dry or frozen the PPC (approx. 15 m apart); a majority of overland flow originates from an to bottom agricultural ditch to the west; a small culvert is located along fence line to the northeast; no continuous defined channel; no fish habitat potential. BC-751b1 1145.24 Unnamed Drainage 10U 530558E - Open Trenchless (Bore) Isolation if water present Existing or Ramp and - Roadside ditch that drains north along 232nd Street; marginal channel A or B (W10616.2) (Roadside Ditch) [NCD] 5444125N Culvert definition and culverted through the centre of the PPC; flows through a concrete culvert underneath 232nd Street, approx. 100 m downslope (40% gradient at culvert outlet; an artificial stormwater pond is also located downslope); no fish habitat potential. BC-751b2 1145.37 Unnamed Drainage 10U 530425E - Open Isolation if water present - Ramp and Culvert - Seasonal drainage that is culverted through the centre of the PPC; mostly A or B 5444129N / Open-cut if dry or frozen dry in September 2017, with the exception of a small depression containing to bottom water approx. 30 m downslope; drains into a larger stormwater pond along 232 Street (135 m DS); no fish habitat potential. BC-751c 1145.58 Unnamed Channel [S6] 10U 530221E - Open Isolation if water present - Existing or Ramp and 10 m Small marginally defined watercourse with minimal flow, shallow depths, B or C (W1914.3) 5444180N / Open-cut if dry or frozen Culvert and high percentages of fines; a small PVC pipe directs flow across the to bottom existing TMPL ROW and southwest towards BC-752 (NFB); poor connectivity downslope; no fish were captured or observed. BC-752 1145.66 Unnamed Drainage 10U 530147E - Open Isolation if water present - Ramp and Culvert; - Seasonal low-lying wet area with poor connectivity to the Salmon River; A or B (W1792.3) (Wetland) [NCD-W] 5444193N / Open-cut if dry or frozen Swamp Mats may be overland flow across the existing TMPL ROW; a large artificial pond is to bottom required located approx. 200 m downslope, and a concrete weir at the pond outlet is a barrier to fish migration; no fish were captured or observed through extensive sampling efforts, although wet areas may provide important habitat for amphibians. BC-753 (SAR) 1146.07 Salmon River [S2] 10U 529781E Fish Bearing August 1 - August 31 Trenchless with water Isolation with fish salvage Clear-Span Bridge 30 m High rearing and wintering potential for salmonids and coarse fish, including Comply with Federal and (W1793.3) 5444356N quality monitoring and water quality monitoring SSU and BMC (Pacific group); important migration corridor for spawning Provincial Regulations during low flow (2) CO; a DFO fish trap is located approx. 350 m downstream (below Rawlison Crescent); spawning habitat within the ZOI is limited by high percentages of fines, although potentially suitable SSU spawning habitat may be located at riffle downstream from fish trap (approx. 360 m DS); proposed critical habitat for SSU; avoid SSU spawning period of March 1 - July 1 and adhere to additional mitigation measures to be provided in the final Pipeline EPP for watercourses identified as critical SSU habitat. BC-753a 1146.14 Unnamed Drainage 10U 529720E - Open Trenchless (Bore) Isolation if water present Existing or Ramp and - Small roadside ditch that flows north along the west side of Glover Road; A or B (W10630.2) (Roadside Ditch) [NCD] 5444387N Culvert culverted through the centre of the PPC; drains through a 2 m perched culvert (500 mm) underneath Glover Road, approx. 40 m downslope; steep gradient (~15%) and overland flow downslope; no fish habitat potential. BC-755 1146.62 Unnamed Drainage [NCD] 10U 529272E - Open Isolation if water present - Ramp and Culvert - Seasonal drainage with short sections of scour and overland flow (dry in A or B (W1795.3) 5444562N / Open-cut if dry or frozen October 2013); no continuous defined channel; no fish habitat potential. to bottom BC-755a1 1146.98 Unnamed Drainage 10U 528932E - Open Trenchless (Bore) Isolation if water present Existing or Ramp and - Small roadside ditch that drains south along the west side of 224th Street; A or B (W10637.2) (Roadside Ditch) [NCD] 5444652N Culvert culverted underneath a driveway at the centre of the PPC; overland flow with no continuous defined channel; no fish habitat potential. Note: there is no ditch located along the east side of 224th Street. BC-755a2 1148.53 Unnamed Drainage 10U 527653E - Open Isolation if water present - Ramp and Culvert - Shallow roadside ditch that flows north, parallel to the centre of the PPC, A or B (W10653.0) (Roadside Ditch) [NCD] 5445324N / Open-cut if dry or frozen along the west side of 217a Street (same ditch line as BC-755b); to bottom predominately dry at the time of assessment (December 2015); discharges into a stormwater outfall at 88th Ave (approx. 220 m DS); no continuous defined channel; no fish habitat potential. BC-755b 1148.73 Unnamed Drainage 10U 527649E - Open Isolation if water present - Ramp and Culvert - Shallow roadside ditch that flows north, parallel to the centre of the PPC, A or B (W1916.1) (Roadside Ditch) [NCD] 5445524N / Open-cut if dry or frozen along the west side of 217a Street (same ditch line as BC-755a2); to bottom predominately dry at the time of assessment (December 2015); discharges into a stormwater outfall at 88th Ave (approx. 20 m DS); no continuous defined channel; no fish habitat potential.

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TABLE 7.1-2 Cont’d

Feature ID Watercourse Name/ Fish Least Risk Biological Proposed Primary Proposed Pipeline Vehicle Crossing Riparian KP (005)3 UTM Site-Specific Comments5 Reclamation4 (PXID) Classification Presence Window Proposed Pipeline Contingency Method Reserve Zone BC-758a 1149.60 Unnamed Drainage [NCD] 10U 527974E - Open Isolation if water present - Existing or Ramp and - No defined channel at the PPC; overland flow from golf course fairway A or B (W11449.3) 5445933N / Open-cut if dry or frozen Culvert drains through a series of PVC pipes underneath an existing access trail; a to bottom small outlet channel converges with a NFB drainage approx. 100 m downstream; no fish were captured or observed in outlet channel or downstream tributary; a 2 m perched culvert is located approx. 500 m downstream. BC-759a 1150.18 Unnamed Channel [S3] 10U 528030E Fish Bearing August 1 - September 15 Trenchless (Bore) Isolation with fish salvage Clear-Span Bridge or 20 m Juvenile CCT and CO were captured within the ZOI; suitable rearing habitat C or D (W1918.4) 5446435N and water quality monitoring other regulatory during high flow, although limited by channel size, shallow depths, and if flowing (1) approved crossing seasonal flow; a small settling pond is located approx. 50 m downstream; method converges with larger tributary approx. 100 m downstream; low potential for spawning at the PPC (high fines), although spawning habitat may be available downstream reaches of larger tributary. BC-759c 1150.83 Unnamed Drainage [NCD] 10U 527901E - Open Trenchless (Bore) Isolation if water present Ramp and Culvert - Vegetated swale with overland flow and pockets of standing water; no A or B (W1920.3) 5447024N continuous defined channel; no fish habitat potential; a small PVC pipe (150 mm) drains water underneath golf course access trail, approx. 50 m downslope. BC-759c1 1150.99 Unnamed Drainage 10U 527899E Fish Bearing Open Trenchless Isolation with fish salvage if Ramp and Culvert; - Shallow low-lying marsh adjacent to the CN Railway tracks (drains east Refer to Wetland Survey (W10693.2) (Wetland) 5447184N water present Swamp Mats may be along the south side of railway); TSB were captured in marsh, approx. 100 and Mitigation Plan [NCD-W (FB)] required m downslope, and juvenile CO were captured in downstream tributary (approx. 290 m DS); however, low fish habitat potential at the PPC is attributed to a lack of flow, shallow depths, minimal connectivity (e.g., poor channelization, beaver dams, etc.), and potentially stagnant water conditions. BC-759d 1151.11 Unnamed Drainage 10U 527847E - Open Refer to Wetland Survey Refer to Wetland Survey and Refer to Wetland Survey 0 m Low-lying marsh adjacent to the CN Railway tracks (drains east along north Refer to Wetland Survey (W1921.3) (Wetland) 5447252N and Mitigation Plan Mitigation Plan and Mitigation Plan (10 m for Wetland) side of 96 Ave); no fish were captured or observed in wetted portions of and Mitigation Plan [NCD-W] ditch and marsh habitat downslope from the PPC; low fish habitat potential is attributed to a lack of connectivity, insufficient water depths, dense instream vegetation and poor DO (4.94 mg/L in February 2016). BC-759d1 1151.53 Unnamed Channel 10U 527436E - Open Trenchless (Bore) Isolation if water present Ramp and Culvert 10 m Stagnant roadside ditch that drains south along 216th Street, and east C or D (W10701.2) (Roadside Ditch) [S6] 5447357N along the CN Railway; 100% organics/fines, heavy algae growth, and large amounts of refuse; converges with BC-759d (NFB), approx. 400 m downslope; no fish were captured or observed. BC-759d2 1151.55 Unnamed Channel 10U 527419E - Open Trenchless (Bore) Isolation if water present Ramp and Culvert 10 m Stagnant roadside ditch located along the west side of 216th Ave; 100% B or C (W10706.2) (Roadside Ditch) [S6] 5447361N organics/fines, heavy algae growth, and large amounts of refuse; poor connectivity downslope; no fish were captured or observed. BC-759e 1151.96 Unnamed Drainage 10U 527021E - Open Isolation if water present - Ramp and Culvert - Small roadside ditch located along the west side of a private access road; A or B (W1922.2) (Roadside Ditch) [NCD] 5447455N / Open-cut if dry or frozen fully vegetated and dry at the time of the assessment (February 2016); to bottom potential for seasonal overland flow but no continuous defined channel; East Munday Creek (BC-766) is located approx. 40 m to the west; area may flood periodically during unseasonably wet conditions. BC-766 1152.00 East Munday Creek [S3] 10U 526982E Fish Bearing August 1 - September 15 Isolation with fish salvage Isolation with fish salvage Clear-Span Bridge 20 m Moderate potential for salmonids; two juvenile CCT were captured approx. D or E (W1797.2) 5447466N and water quality and water quality monitoring 370 m upstream in July 2014, and there are previous records of CO; monitoring (1) during low flow (2) moderate channel complexity with abundant cover provided by OHV and undercut banks, but shallow depths and poor DO (5.46 mg/L in July 2014) may restrict habitat potential for salmonids during summer months; pockets of gravel exist for spawning, although limited in sections by high percentage of fines. BC-766a 1153.12 Unnamed Drainage 10U 525904E Open Refer to Wetland Survey Refer to Wetland Survey and Refer to Wetland Survey 0 m Low-lying wetland adjacent to the CN Railway; completely vegetated with Refer to Wetland Survey (W1923.3) (Wetland) 5447756N and Mitigation Plan Mitigation Plan and Mitigation Plan (10 m for Wetland) reed canary grass; insufficient water depths and no discernible channel or and Mitigation Plan [NCD-W] ponded habitat to support fish at the time of assessment (October 2014); wetland area may be prone to flooding; avoid construction during wet periods. BC-766c 1153.31 Unnamed Drainage [NCD] 10U 525714E - Open Isolation if water present - Ramp and Culvert 0 m Low-lying wet area adjacent to the CN Railway; potential for seasonal A or B (W11447.2) 5447804N / Open-cut if dry or frozen (10 m for Wetland) overland flow but no continuous defined channel; poor connectivity to East to bottom Munday Creek (FB); no fish habitat potential. BC-767 1153.54 West Munday Creek [S2] 10U 525487E Fish Bearing August 1 - August 31 Isolation with fish salvage Isolation with fish salvage Clear-Span Bridge 30 m Moderate to high potential for salmonids; converges with Yorkson Creek E or F (W1798.2) 5447845N and water quality and water quality monitoring approx. 900 m downstream; juvenile CO and CCT were captured upstream monitoring (1) during low flow (2) from the PPC (November 2013); spawning is limited by high percentages of fines/organics; historical records of KO and SG, although connectivity to the Fraser River has changed over time, and the presence of these species is largely anecdotal (no records of these species in Yorkson Creek). BC-768 1153.84 Yorkson Creek [S3] 10U 525197E Fish Bearing August 1 - August 31 Trenchless (Bore) Isolation with fish salvage Clear-Span Bridge 20 m Moderate to high potential for salmonids; juvenile CO, CH, and CCT were E or F (W1799.2) 5447886N and water quality monitoring captured at the PPC (April 2014), and BMC (Pacific group; Blue-listed in (1) BC) were captured in November 2013; abundant cover and deep run/pool habitat (1-2 m water depth) with laminar flow offers suitable habitat for rearing and wintering; spawning is limited by high percentages of fines/organics; low-lying wet areas located adjacent to channel; Swamp Mats may be required for construction.

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TABLE 7.1-2 Cont’d

Feature ID Watercourse Name/ Fish Least Risk Biological Proposed Primary Proposed Pipeline Vehicle Crossing Riparian KP (005)3 UTM Site-Specific Comments5 Reclamation4 (PXID) Classification Presence Window Proposed Pipeline Contingency Method Reserve Zone BC-768a 1154.27 Unnamed Channel 10U 524769E Fish Bearing Open Isolation with fish salvage - Ramp and Culvert 15 m Small channel that originates from a CN Railway ditch (approx. 20 m US); B or C; Refer to Wetland (W1926.2) [S4/NCD-W (FB)] 5447934N if flowing / Open-cut if dry no fish were captured or observed at the PPC (minimal flow and marginal Survey and Mitigation or frozen to bottom channel definition); drains into low-lying marsh (NCD-W) approx. 50 m Plan downstream (TSB and BCB were captured); marsh provides moderate cover, although low potential for salmonids is attributed to a lack of flow, poor connectivity, shallow depths, dense instream vegetation and poor DO (5.55 mg/L in February 2016). BC-768b 1155.68 Unnamed Channel [S2] 10U 523377E Fish Bearing August 1 - September 15 Isolation with fish salvage Isolation with fish salvage Existing or Clear-Span 30 m Moderate potential for salmonids; numerous young-of-year PK were D or E (W1927.2) 5447781N and water quality and water quality monitoring Bridge captured and observed (February 2016); PMB and TSB were captured in monitoring (1) during low flow (2) October 2014; abundant cover is provided by deep pools, OHV, woody debris, and undercut banks; suitable gravels for spawning, although limited in sections by high percentages of fines; a culvert barrier (stormwater drain) is located upstream; four discharge pipes were observed draining into channel from adjacent industrial areas; least risk biological window proposed includes potential for CCT and RB. BC-769a 1157.98 Unnamed Drainage 10U 521111E - Open Trenchless (included in Isolation if water present Ramp and Culvert - Small vegetated ditch (adjacent to CN Railway tracks) with potential A or B (W12492.0) (Railway Ditch) [NCD] 5447589N railway bore) seasonal overland flow; no continuous defined channel; steep gradient (13- 30%) and poor connectivity to BC-770 (FB); no fish habitat potential. BC-770 1158.07 Unnamed Channel [S3] 10U 521017E Fish Bearing August 1 - September 15 Isolation with fish salvage Isolation with fish salvage Clear-Span Bridge 20 m Moderate potential for salmonids; juvenile CH, CO, and CCT, and BMC D or E (W1801.3) 5447580N and water quality and water quality monitoring (Pacific group; Blue-listed in BC) were captured or observed within the ZOI; monitoring (1) during low flow (2) abundant cover is provided by woody debris, undercut banks, and frequent small pools; pockets of suitable gravel exist for spawning, although limited at the PPC by high percentages of fines; close proximity to the Fraser River (more suitable fish habitat located downstream from the CN Railway); a small beaver dam is situated downstream, but is not a barrier to fish migration. BC-770a 1158.20 Unnamed Drainage [NCD] 10U 520888E - Open Isolation if water present - Ramp and Culvert - Seasonal drainage with short sections of scour and overland flow; no A or B (W10812.2) 5447583N / Open-cut if dry or frozen continuous defined channel; no fish habitat potential; a vertical culvert to bottom (stand pipe), approx. 100 m downslope, directs overland flow underneath the CN Railway. BC-770a1 1158.27 Unnamed Drainage [NCD] 10U 520818E - Open Trenchless (Bore) Isolation if water present Ramp and Culvert - Seasonal drainage with overland flow and pockets of standing water; no A or B (W10813.2) 5447601N continuous defined channel; no fish habitat potential; a vertical culvert (stand pipe), approx. 100 m downslope, directs overland flow underneath the CN Railway. BC-770a2 1158.29 Unnamed Drainage [NCD] 10U 520798E - Open Trenchless (Bore) Isolation if water present Ramp and Culvert - Armoured ditch line adjacent to the Golden Ears Connector; dry at the time A or B (W1928.3) 5447605N of assessment but potential for seasonal overland flow; no continuous defined channel; no fish habitat potential. BC-770b 1158.40 Unnamed Drainage [NCD] 10U 520699E - Open Trenchless (Bore) Isolation if water present Ramp and Culvert - Seasonal drainage with overland flow and pockets of standing water; no A or B (W1929.2) 5447630N continuous defined channel; no fish habitat potential. BC-770c 1158.52 Unnamed Drainage [NCD- 10U 520648E - Open Isolation if water present - Ramp and Culvert - Low-lying wet area with saturated soils, skunk cabbage, horsetail, and A or B (W1930.2) W] 5447727N / Open-cut if dry or frozen sedges; potential for standing water and overland flow during wet to bottom conditions; no continuous defined channel; no fish habitat potential. BC-770c1 1158.57 Unnamed Channel 10U 520627E - Open Isolation if water present - Ramp and Culvert 10 m Seasonal roadside ditch that drains through small culvert underneath 182a B or C (W10819.1) (Roadside Ditch) [S6] 5447775N / Open-cut if dry or frozen Street, and east along Golden Ears Connector; poor migration for fish, to bottom including large quantities of riprap in downstream ditch line, and a partially buried culvert underneath the CN Railway; no fish were captured or observed. BC-770d 1158.94 Leoran Brook Creek [S3] 10U 520327E Fish Bearing August 1 - September 15 Isolation with fish salvage Isolation with fish salvage Clear-Span Bridge 20 m Moderate potential for salmonids; juvenile CO, CCT, and RB, and one adult D or E (W1931.2) 5447980N and water quality and water quality monitoring RB, were captured within the ZOI; moderate instream complexity with monitoring (1) during low flow (2) abundant cover (OHV, woody debris, and undercut banks); 3 artificial step- pools, approx. 80 m upstream, provide year-round pool habitat for rearing and overwintering fishes, although migration may be limited during low flow; pockets of suitable gravel exist for spawning, although limited in sections by high percentages of fines or cobble/boulder. BC-770e 1159.08 Unnamed Drainage [NCD] 10U 520210E - Open Isolation if water present - Ramp and Culvert - Small seasonal drainage (predominately overland flow) that drains into ditch A or B (W1932.2) 5448050N / Open-cut if dry or frozen line adjacent to Golden Ears Connector (20 m DS); originates from seepage to bottom along base of riprap berm approx. 30 m upslope; berm surrounds artificial pond where TSB were captured, although there is nil potential for downstream fish migration. BC-770f 1159.23 Unnamed Channel [S4] 10U 520096E Fish Bearing Open Isolation with fish salvage - Ramp and Culvert 15 m Small seasonal watercourse that parallels the SW ditch line of the Golden B or C (W1933.2) 5448160N if flowing / Open-cut if dry Ears Connector (not currently crossed by the PPC); flows towards BC-771.1 or frozen to bottom (FB) approx. 90 m downstream; no fish were captured or observed in the unnamed channel (poor discharge, minimal cover, and shallow depths); originates from ponded area approx. 150 m upstream (TSB were captured); conduct precautionary fish salvage if flowing during construction.

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TABLE 7.1-2 Cont’d

Feature ID Watercourse Name/ Fish Least Risk Biological Proposed Primary Proposed Pipeline Vehicle Crossing Riparian KP (005)3 UTM Site-Specific Comments5 Reclamation4 (PXID) Classification Presence Window Proposed Pipeline Contingency Method Reserve Zone BC-771.1 1159.29 Unnamed Channel [S4] 10U 520049E Fish Bearing August 1 - September 15 Trenchless (Bore) Isolation with fish salvage Existing or Clear-Span 15 m Low to moderate potential for salmonids; juvenile CCT and CO were C or D (W12495.0) 5448196N and water quality monitoring Bridge or other captured within the ZOI; watercourse may be dry or intermittent during if flowing (1) regulatory approved summer months; abundant cover is provided by OHV, undercut banks, and crossing method small pools; some pockets of gravel for spawning, although limited in sections by high percentages of fines or cobble; watercourse is largely culverted at the PPC and throughout ZOI (more suitable fish habitat exists upstream); recommend installing pipe underneath existing culvert. BC-771.2 1159.32 Unnamed Drainage 10U 520025E - Open Trenchless (Bore) Isolation if water present Existing or Ramp and - Vegetated roadside ditch with potential for seasonal overland flow; no A or B (W12514.0) (Roadside Ditch) [NCD] 5448215N Culvert continuous defined channel; drains into stormwater outfall immediately downslope; no fish habitat potential. BC-771a1 1159.53 Unnamed Channel [S3] 10U 519858E Fish Bearing Open Isolation with fish salvage - Existing or Clear-Span 20 m TSB were captured at the PPC and 1 juvenile CCT was captured approx. C or D (W12517.0) 5448328N if flowing / Open-cut if dry Bridge or other 50 m downstream; close proximity to Fraser River (230 m DS), although or frozen to bottom regulatory approved watercourse is largely culverted throughout ZOI (very few day lighted crossing method sections with trace cover and poor habitat complexity); culverts are baffled to assist with fish passage and more suitable fish habitat exists upstream; spawning is limited by angular substrate and large quantities of riprap. BC-772a 1160.25 Unnamed Channel [S4] 10U 519268E Fish Bearing Open Isolation with fish salvage - Existing or other 15 m Engineered watercourse that drains from large stormwater pond upstream, B or C (W12622.0) 5448725N if flowing / Open-cut if dry regulatory approved and is culverted at the centre of the PPC; flows through two 1000 mm or frozen to bottom crossing method culverts underneath 104 Avenue; discharges into roadside ditch (FB), approx. 60 m downstream; juvenile CO, FM, and TSB were captured (April 2014), approx. 150 m downstream (E) where roadside ditch converges with 2 additional watercourses upstream from the CN Railway tracks; however, only PMB and NSC were captured above 104 Avenue (January 2016), and there is likely low potential for salmonids (minimal flow, shallow depths, trace cover and potential culvert barriers). BC-772a1 1161.11 Unnamed Drainage 10U 518608E - Open Isolation if water present - Ramp and Culvert; - Seasonal low-lying wet area with saturated ground and sparse pockets of A or B (W12618.0) (Wetland) [NCD-W] 5449146N / Open-cut if dry or frozen Swamp Mats may be standing water; no continuous defined channel; poor connectivity and to bottom required insufficient depths to support fish. BC-772a2 1161.17 Unnamed Drainage 10U 518566E - Open Trenchless (included in Refer to Wetland Survey and Refer to Wetland Survey - Seasonal low-lying wet area with low fish habitat potential (approx. 10 m Refer to Wetland Survey (W12619.0) (Wetland) [NCD-W] 5449190N SFPR East HDD) Mitigation Plan and Mitigation Plan wide and isolated); no continuous defined channel; shallow depths and poor and Mitigation Plan connectivity to fish habitat (dry ditch downslope). BC-772a3 1161.21 Unnamed Drainage 10U 518539E Fish Bearing Open Trenchless (included in Isolation with fish salvage if Ramp and Culvert; 0 m Seasonal wetland with multiple beaver dams, ponded areas, and overland Refer to Wetland Survey (W12620.0) (Wetland) 5449218N SFPR East HDD) water present Swamp Mats may be (100 m for Wildlife) flow (poorly defined downslope); low potential for salmonids is attributed to and Mitigation Plan [NCD-W (FB)] required indiscernible flow, poor DO (1.15 mg/L in January 2016), migration barriers, and 100% fines/organics; poor connectivity to Centre Creek (BC-773.1), approx. 250 m downslope (NW); only TSB were captured. BC-772b 1161.27 Unnamed Drainage 10U 518501E - Open Trenchless (included in Refer to Wetland Survey and Refer to Wetland Survey 0 m Low-lying wet area with saturated soils and small pockets of standing water Refer to Wetland Survey (W12548.0) (Wetland) 5449257N SFPR East HDD) Mitigation Plan and Mitigation Plan (10 m for Wetland) (less than 0.1 m deep); no continuous defined channel and poor and Mitigation Plan [NCD-W] connectivity to adjacent fish habitat (e.g., BC-772a3 and BC-772c), which have low potential for salmonids (only TSB were captured). BC-772c 1161.33 Unnamed Drainage 10U 518459E Fish Bearing Open Trenchless (included in Isolation with fish salvage if Ramp and Culvert; 0 m Seasonal wetland characterized by a small beaver pond and sections of Refer to Wetland Survey (W12550.0) (Wetland) 5449301N SFPR East HDD) water present Swamp Mats may be (10 m for Wetland) marginally defined channel, crossed by the PPC at two locations (10 U and Mitigation Plan [NCD-W (FB)] required 518460 5449300 and 10 U 518437 5449323); a beaver dam is located between the two crossings; low potential for salmonids is attributed to minimal flow, shallow depths, dense instream vegetation, and poor connectivity to Centre Creek (BC-773.1); only TSB were captured. BC-772d 1161.38 Unnamed Drainage 10U 518425E Fish Bearing Open Trenchless (included in Isolation with fish salvage if Ramp and Culvert; 0 m Small unconfined drainage with low-lying wet areas and sections of Refer to Wetland Survey (W12551.0) (Wetland) [NCD-W (FB)] 5449337N SFPR East HDD) water present Swamp Mats may be (10 m for Wetland) marginally defined channel; low potential for salmonids is attributed to and Mitigation Plan required minimal flow, shallow depths, dense instream vegetation, and poor connectivity through wetland area downslope (e.g., loss of channel definition, beaver dams, etc.); only TSB were captured. BC-773.1 1161.48 Centre Creek 10U 518351E Fish Bearing Open Trenchless with water Isolation with fish salvage Ramp and Culvert or 10 m Multiple tributaries converge together to form a large open water wetland Refer to Wetland Survey (W12556.0) [NCD-W (FB)] 5449413N quality monitoring (SFPR and water quality monitoring Clear-Span Bridge; (100 m for Wildlife) along the south side of the South Fraser Perimeter Road (SFPR); juvenile and Mitigation Plan East HDD) Swamp Mats may be CCT were captured, and there are previous records of CO above the SFPR; required high water temperatures and poor DO (4.20 mg/L in May 2014) may limit potential for salmonids during summer months; low potential for spawning (poor discharge and 100% fines/organics); multiple culverts convey flow underneath the SFPR; drainage has been impacted by highway and railway development (i.e., drains from north to south underneath the SFPR).

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TABLE 7.1-2 Cont’d

Feature ID Watercourse Name/ Fish Least Risk Biological Proposed Primary Proposed Pipeline Vehicle Crossing Riparian KP (005)3 UTM Site-Specific Comments5 Reclamation4 (PXID) Classification Presence Window Proposed Pipeline Contingency Method Reserve Zone BC-773.4 1161.87 Unnamed Drainage 10U 518064E Fish Bearing Open Isolation with fish salvage - Ramp and Culvert or - Wetland drainage that parallels the south side of the PPC for approx. 650 m Refer to Wetland Survey (W12555.0) (Wetland) [NCD-W (FB)] 5449678N if water present / Open- Clear-Span Bridge; between Centre Creek (10 U 518357 5449407) and BC-773b1 (10 U and Mitigation Plan cut if dry or frozen to Swamp Mats may be 517844 E 5449859); flows from west to east; likely low potential for bottom required salmonids which is attributed to a lack of flow, poor connectivity, marginal channel definition, shallow depths, dense instream vegetation, and 100% fines/organics; may be dry or intermittent during summer months; CCT and RL were captured from small tributaries downstream (e.g., 10 U 518263 5449463) and from Centre Creek (BC-773.1) ; therefore salmonids may inhabit narrow portions of this drainage during periods of high flow, despite poor connectivity. BC-773.5 1161.95 Unnamed Drainage 10U 518001E Fish Bearing Open Trenchless (included in Isolation with fish salvage if Ramp and Culvert; 0 m Low-lying wetland drainage that is crossed by the PPC and flows southeast Refer to Wetland Survey (W12635.0) (Wetland) [NCD-W (FB*)] 5449728N SFPR East HDD) water present Swamp Mats may be (100 m for Wildlife) through the proposed temporary workspace (parallels the south edge of the and Mitigation Plan required South Fraser Perimeter Road [SFPR] for nearly 500 m); originates from large open-water ponded area (BC-773b1) to the northwest, and receives additional inputs from BC-773.4 (FB); predominately overland flow with pockets of standing water but no continuous defined channel, although somewhat confined by artificial berm along south edge of the SFPR; no sampling was conducted, but defaulted to fish-bearing as there may be potential for coarse fish during high flow (e.g., TSB). BC-773b1 1162.16 Unnamed Drainage 10U 517842E Fish Bearing Open Trenchless (included in Isolation with fish salvage if Ramp and Culvert or 0 m Large open water wetland that is crossed by the PPC, and parallels both Refer to Wetland Survey (W12559.0) (Wetland) [NCD-W (FB)] 5449856N SFPR East HDD) water present Clear-Span Bridge; (100 m for Wildlife) the South Fraser Perimeter Road (SFPR) and PPC for approx. 200 m; and Mitigation Plan Swamp Mats may be drains multiple directions, including northwest underneath the SFPR and required converging with BC-773b3, west into BC-774a, and southeast towards BC- 773.4 and BC-773.5 (predominately overland flow); TSB were captured, although there is likely low potential for salmonids, which is attributed to a lack of flow and poor connectivity downslope (multiple beaver dams were observed). BC-773b2 1162.25 Unnamed Drainage 10U 517769E - Open Trenchless (included in Refer to Wetland Survey and Refer to Wetland Survey 0 m Small low-lying wet area with overland flow and pockets of standing water; Refer to Wetland Survey (W12561.0) (Wetland) [NCD-W] 5449915N SFPR East HDD) Mitigation Plan and Mitigation Plan (100 m for Wildlife) no continuous defined channel; poor connectivity through dense vegetation, and Mitigation Plan and insufficient depths to support fish at the time of survey; however, drainage is situated within greater wetland complex and adjacent drainages have potential for TSB (e.g., BC-773b1 and BC-773b3); conduct precautionary fish salvage if wetland is flooded at time of construction, otherwise drainage is considered to be nonfish-bearing. BC-773b3 1162.28 Unnamed Drainage 10U 517745E Fish Bearing Open Trenchless (included in Isolation with fish salvage if Ramp and Culvert; 0 m Low-lying wet area with multiple small drainages that convey seasonal Refer to Wetland Survey (W12562.0) (Wetland) [NCD-W (FB)] 5449934N SFPR East HDD) water present Swamp Mats may be (100 m for Wildlife) overland flow across the centre of the PPC; seasonal connectivity to BC- and Mitigation Plan required 774a to the south and BC-773b1 to the north, and becomes channelized downslope from the South Fraser Perimeter Road (SFPR); also has seasonal connectivity to upper reaches of BC-774a to the south; TSB were captured, although there is low potential for salmonids (no previous records above SFPR) which is attributed to a lack of flow, shallow depths, poor channelization and minimal connectivity downslope; multiple beaver dams were observed within the ZOI. BC-774a 1162.41 Unnamed Channel [S3] 10U 517647E Fish Bearing July 1 - April 31 Trenchless with water Isolation with fish salvage Ramp and Culvert or 20 m Low potential for salmonids (no previous records above the South Fraser C or D (W1805.4) 5450014N quality monitoring (SFPR and water quality monitoring Clear-Span Bridge; (100 m for Wildlife) Perimeter Road [SFPR]), although two juvenile CO were captured approx. East HDD) if flowing (1) Swamp Mats may be 250 m downstream (below SFPR); only coarse fish were captured at the required PPC (above SFPR), including BMC (Pacific Group), which are Blue-listed in BC; abundant cover is provided by ISV and OHV; however, potential for salmonids is limited by a lack of flow (seasonal), high water temperatures, dense instream vegetation, high percentages of fines/organics, and poor DO (3.88 mg/L recorded in May and 1.75 mg/L in July, 2014); avoid BMC spawning period from mid-May to early June. BC-774b 1163.07 Unnamed Channel [S6] 10U 517157E - Open Isolation if water present - Ramp and Culvert 10 m Small seasonal watercourse with low fish habitat potential; marginally B or C (W1935.2) 5450456N / Open-cut if dry or frozen (100 m for Wildlife) defined channel with steep bed drops, subsurface/overland flow, riprap to bottom barriers, and a fish exclusion fence at the South Fraser Perimeter Road; no fish were captured or observed. BC-774c 1163.19 Unnamed Drainage [NCD] 10U 517067E - Open Isolation if water present - Ramp and Culvert 0 m Small seasonal drainage with short sections of scour and overland flow; no A or B (W1936.2) 5450540N / Open-cut if dry or frozen (100 m for Wildlife) continuous defined channel greater than 100 m; no fish habitat potential; to bottom poor connectivity downslope (riprap and culvert barriers at South Fraser Perimeter Road). BC-776a 1164.28 Unnamed Channel [S3] 10U 516085E Fish Bearing Open Trenchless (included in Isolation with fish salvage if Ramp and Culvert or 20 m One unidentified juvenile salmonid (suspected CCT) was observed but not D or E (W1806.3) 5450851N SFPR West HDD) flowing Clear-Span Bridge captured within the ZOI, despite multiple years of effort; habitat potential is limited by seasonal flow, shallow depths, and steep gradient (10-15%); poorly defined downstream with braided sections above Hwy 17; spawning potential is limited by high percentages of fines and/or large cobble/boulder; heavily culverted within the ZOI (e.g., Hwy 17 and CN Railway); Hwy 17 culvert is heavily armoured and slightly perched; two small channels converge together at the centre of the PPC.

SHEET 32 of 47

TABLE 7.1-2 Cont’d

Feature ID Watercourse Name/ Fish Least Risk Biological Proposed Primary Proposed Pipeline Vehicle Crossing Riparian KP (005)3 UTM Site-Specific Comments5 Reclamation4 (PXID) Classification Presence Window Proposed Pipeline Contingency Method Reserve Zone BC-777 1164.94 Unnamed Channel [S3] 10U 515512E Fish Bearing Open Isolation with fish salvage - Clear-Span Bridge or 20 m Low to moderate potential for salmonids; juvenile CO and CCT were C or D (W1807.2) 5451005N if flowing / Open-cut if dry other regulatory captured in short daylighted section of channel approx. 100 m downstream or frozen to bottom approved crossing (below Hwy 17); close proximity to the Fraser River, although perennial method habitat use is limited by moderately steep gradient (10-17%), poor discharge (seasonal flow), shallow depths, and a lack of residual pools; low potential for spawning (predominately fines and cobble with small pockets of gravel); heavily culverted through transportation corridor downstream from the PPC. BC-777a 1165.48 Unnamed Drainage 10U 515000E - Open Isolation if water present - Ramp and Culvert - Vegetated low-lying wet area downslope from the PPC; stagnant water (<10 A or B (W1938.3) (Wetland) [NCD-W] 5451064N / Open-cut if dry or frozen cm deep) and insufficient depths to support fish; no continuous defined to bottom channel and poor connectivity to the Fraser River; nil potential for fish but amphibian salvage is recommended. BC-777b 1166.08 Unnamed Channel [S3] 10U 514419E Fish Bearing Open Isolation with fish salvage - Clear-Span Bridge or 20 m Low to moderate potential for salmonids; close proximity to the Fraser B or C (W10891.1) 5451212N if flowing / Open-cut if dry other regulatory River; juvenile CO and CCT were captured approx. 45 m upstream; or frozen to bottom approved crossing abundant cover for rearing, although limited by shallow depths and minimal method flow (i.e., watercourse may be dry or intermittent during summer months); low potential for spawning (predominantly fines/organics); heavily culverted through transportation corridor downstream from the PPC. BC-777c 1166.11 Unnamed Drainage [NCD] 10U 514389E - Open Isolation if water present - Ramp and Culvert - No continuous defined channel and dry at the time of assessment (January A or B (W10893.1) 5451219N / Open-cut if dry or frozen 2016); no evidence of recent flow; may have flowed at one time but appears to bottom to have been diverted by an earthen berm upslope; a buried culvert is located at confluence with BC-777b (FB) approx. 40 m downslope; no fish habitat potential. BC-780 1166.72 Fraser River [S1A] 10U 513937E Fish Bearing August 1 - August 15 HDD with water quality Other regulatory approved Access both banks 50 m The lower Fraser River is an important migration corridor for Pacific salmon, Comply with Federal and (W1810.2) 5451508N monitoring trenchless method and other species of management concern including WSG, GSG, and EU; Provincial Regulations instream construction (if required) should avoid key migration periods; suitable cover exists, primarily along channel edges for rearing and wintering fishes, although limited potential for spawning (100% fines); left and right banks are highly disturbed, and little natural riparian vegetation remains; subject to semi-diurnal tidal movements (meso-tidal ranges) with differences of approx. 2 m between high and low water periods (as recorded adjacent to the Port Mann Bridge). BC-780.1 1167.75 Port Mann Slough [S2] 10U 513601E Fish Bearing Open Trenchless (included in Isolation with fish salvage if Clear-Span Bridge or 30 m Low-lying slough adjacent to the Fraser River; only TSB were captured or Comply with Federal and (W10901.1) 5452482N Fraser River Trenchless) water present other regulatory observed; concrete flow gates at confluence with the Fraser River likely Provincial Regulations approved crossing restrict potential for salmonids; multiple beaver dams were observed within method ZOI; slough is connected to BC-780a1/BC-780a2 and BC-780a3 via culverts (no salmonids were captured or observed in adjacent watercourses); poor DO (2.24 mg/L in January 2016) and 100% fines/organics. BC-780a1 1167.85 Unnamed Channel [S2] 10U 513568E Fish Bearing Open Trenchless (included in Isolation with fish salvage if Clear-Span Bridge or 30 m Engineered canal with low potential for salmonids (only TSB were Comply with Federal and (W1811.2) 5452575N Fraser River Trenchless) flowing other regulatory captured); poor connectivity to the Coquitlam River; stagnant flow Provincial Regulations approved crossing conditions and poor DO (0.27 mg/L in July; 2.63 mg/L in October); multiple method beaver dams within the ZOI; no salmonids were captured or observed / Refer to Wetland Survey and Mitigation Plan. BC-780a2 1168.11 Unnamed Channel [S2] 10U 513429E Fish Bearing Open Trenchless (Bore) Isolation with fish salvage if Clear-Span Bridge or 30 m Engineered canal with low potential for salmonids (only TSB were captured); D or E (W1812.2) 5452747N flowing other regulatory poor connectivity to the Coquitlam River; stagnant flow conditions and poor approved crossing DO (0.27 mg/L in July; 2.63 mg/L in October); multiple beaver dams within method the ZOI; no salmonids were captured or observed. BC-780a3 1168.33 Unnamed Channel 10U 513363E Fish Bearing Open Isolation with fish salvage - Clear-Span Bridge or 30 m Shallow roadside canal that parallels the Port Mann Bridge; connected to D or E (W1939.2) (Roadside Canal) [S2] 5452586N if water present / Open- other regulatory BC-780.1 watercourse (via culvert) downstream from the PPC; only TSB cut if dry or frozen to approved crossing were captured or observed within the ZOI; concrete flow gates at the bottom method confluence with the Fraser River likely restrict potential for salmonids; minimal cover, shallow depths, 100% fines/organics, and poor DO (2.63 mg/L in January 2015). BC-780b 1169.35 Dawes Hill Creek [S2] 10U 512367E Fish Bearing August 1 - September 15 Trenchless (Bore) Isolation with fish salvage Existing or Clear-Span 30 m Moderate potential for salmonids; juvenile RB, CO, and CH were captured E or F (W1813.4) 5452438N and water quality monitoring Bridge within the ZOI; moderate channel complexity with suitable depths and (1) abundant cover (woody debris and OHV); pockets of suitable gravel for spawning, although limited at the PPC by high percentages of fines/organics; beaver dams at the existing TMPL ROW may act as temporary barriers to fish migration; an existing culvert crossing is located at the PPC. BC-780b1 1169.65 Unnamed Drainage [NCD] 10U 512210E - Open Isolation if water present - Ramp and Culvert - Vegetated swale located between two adjacent land parcels (Lafarge plant A or B (W11463.0) 5452580N / Open-cut if dry or frozen is located to the east); potential for seasonal overland flow but no to bottom continuous defined channel; no fish habitat potential. BC-780c 1171.03 Unnamed Drainage [NCD] 10U 511099E - Open No instream work Isolation if water present Existing or other - Subsurface drainage with no fish habitat potential at the PPC (located A or B (W1814.4) 5452913N proposed; crossing over regulatory approved adjacent to United Boulevard); culvert network potentially directs drainage channelized section crossing method towards Como Creek, approx. 445 m to the south (Riverfront Park) where an outfall structure was observed.

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TABLE 7.1-2 Cont’d

Feature ID Watercourse Name/ Fish Least Risk Biological Proposed Primary Proposed Pipeline Vehicle Crossing Riparian KP (005)3 UTM Site-Specific Comments5 Reclamation4 (PXID) Classification Presence Window Proposed Pipeline Contingency Method Reserve Zone BC-781 1171.26 Como Creek [S2] 10U 510871E Fish Bearing August 1 - September 15 No instream work Isolation with fish salvage Existing or Clear-Span 30 m Moderate potential for salmonids; juvenile RB were captured within the ZOI; E or F (W1815.4) 5452948N proposed; crossing over and water quality monitoring Bridge low potential for spawning (high fines/organics and boulders); elevated channelized section (1) water temperatures and poor DO may be limiting for salmonids during summer months; multiple beaver dams were observed upstream and downstream from the PPC. BC-781a 1171.90 Unnamed Channel 10U 510248E Fish Bearing Open No instream work Isolation with fish salvage if Existing or other 30 m Stormwater drainage that flows subsurface beneath a large parking lot and C or D (W10065.1) (Roadside Ditch) [S2] 5453093N proposed; crossing water present regulatory approved United Blvd (upstream from PPC); daylights into a utility road ditch approx. over/under channelized crossing method 20 m downstream; TSB were captured in ditch line, but no salmonids were section captured or observed; poor connectivity to the Fraser River (drains south into large ponded area approx. 400 m DS with no apparent channel outlet). BC-782 1172.30 Nelson Creek [S2] 10U 509872E Fish Bearing August 1 - September 15 Trenchless (Bore) Isolation with fish salvage Clear-Span Bridge 30 m Moderate potential for salmonids, although only PMB and TSB were E or F (W1816.4) 5453091N and water quality monitoring captured at the PPC; historical records of CO, ST, and CCT, as well as (1) BMC (Pacific group; Blue-listed in BC); suitable depths and moderate flow with abundant cover provided by OHV, ISV, pools and low velocity habitat units, although elevated water temperatures and poor DO may be limiting for salmonids during summer months; spawning potential is limited by high percentages of fines; no barriers to fish migration were observed. BC-782a 1173.28 Unnamed Channel [S6] 10U 508991E - Open Trenchless (Bore) Isolation if water present Ramp and Culvert 10 m Small marginally defined watercourse with low fish habitat potential; shallow B or C (W12612.0) 5453354N depths, poor DO (2.63 mg/L in October 2016) and minimal connectivity downslope (indiscernible flow and dense instream vegetation); 100% fines/organics; no fish were captured or observed. BC-782b 1173.32 Unnamed Drainage 10U 508964E - Open Trenchless (Bore) Isolation if water present Ramp and Culvert - Vegetated ditch line along the north side of the CPR Railway tracks; A or B (W11219.2) (Railway Ditch) [NCD] 5453386N potential for seasonal overland flow, but no continuous defined channel; dry at the time of survey (October 2016); no fish habitat potential. BC-782c 1173.35 Unnamed Drainage [NCD] 10U 508942E - Open Trenchless (Bore) Isolation if water present Ramp and Culvert - Engineered stormwater drainage inside Brunette Ave off-ramp; A or B (W11219.2) 5453411N predominately standing water and overland flow; no visible culvert outlet underneath off-ramp (buried in riprap at confluence with Brunette River); no fish habitat potential. BC-783a1 1173.56 Unnamed Drainage 10U 508759E - Open Trenchless (Bore) Isolation if water present Ramp and Culvert - Stormwater catchment area (engineered) bordered by Brunette Ave A or B (W1940.2) (Wetland) [NCD-W] 5453506N (includes off-ramp), and Hwy 1; two culverts redirect surface water in and out of catchment area; fully vegetated with pockets of standing water and overland flow; no continuous defined channel; no fish habitat potential. BC-783a2 1173.71 Keswick Park Creek [S3] 10U 508629E Fish Bearing August 1 - September 15 Trenchless (Bore) Isolation with fish salvage Existing or other 20 m Watercourse is culverted through the PPC; a 0.85 m perched culvert and C or D (SAR) 5453572N and water quality monitoring regulatory approved riprap barrier is located at the confluence with the Brunette River; potential (W1817.2) if flowing (1) crossing method for salmonids (juvenile CO and CCT) to inhabit culvert outlet pool but low potential for upstream fish passage; proposed crossing is located within Brunette River RMA which is considered critical habitat for NDC. BC-783a4 1173.77 Unnamed Channel [S3] 10U 508571E Fish Bearing August 1 - September 15 Trenchless (Bore) Isolation with fish salvage Clear-Span Bridge 20 m Moderate potential for salmonids; close proximity to the Brunette River D or E (SAR) 5453601N and water quality monitoring (approx. 20 m DS); juvenile CO and CCT were captured within the ZOI; (W1942.3) (1) good riparian habitat with abundant cover provided by OHV, SWD, and pools; suitable gravel for spawning, although limited by high percentages of fines upstream from the PPC; adequate flow and multiple small pools were observed in October 2014; riparian area is bordered by railway tracks to the SW and Hwy 1 to the NE; proposed crossing is located within Brunette River RMA which is considered critical habitat for NDC. BC-783b 1175.14 Holmes Creek [S6/S3] 10U 507632E - August 1 - September 15 Isolation with water Isolation with water quality Clear-Span Bridge or 10 m Moderate potential for salmonids downstream from the CN Railway tracks D or E (W1818.3) 5454457N quality monitoring (1) monitoring during low flow (2) other regulatory (good connectivity to Brunette River and juvenile CO were captured); a 2 m approved crossing perched culvert underneath railway tracks (60 m DS) is a barrier to fish method migration (precludes fish presence at the PPC); heavily culverted above Hwy 1; converges engineered side channel that redirects flow from Austin Creek (BC-784a) downstream from railway tracks; least risk biological window proposed includes potential for CCT or RB; the Brunette River is proposed critical habitat for NDC. BC-784a 1175.36 Austin Creek [S3] 10U 507439E Fish Bearing August 1 - September 15 Isolation with fish salvage Isolation with fish salvage Clear-Span Bridge 20 m Moderate to high potential for salmonids; juvenile CO and RB were D or E (W1819.3) 5454571N and water quality and water quality monitoring captured within the ZOI; moderate channel complexity with abundant cover monitoring (1) during low flow (2) provided by OHV and woody debris; suitable gravel for spawning; adequate flow and frequent small pools were observed in August 2014; an engineered side channel has been constructed for rearing downstream from the PPC (parallels the Brunette River for approx. 350 m before converging with Holmes Creek); Brunette River is proposed critical habitat for NDC. BC-784b 1175.93 Unnamed Channel [S6/S3] 10U 506925E - Open Isolation with water - Existing or Ramp and 10 m No fish were captured or observed at the PPC, or within the immediate ZOI; B or C (W11316.2) 5454810N quality monitoring if Culvert a perched culvert at the CN Railway tracks (approx. 200 m DS) precludes flowing / Open-cut if dry upstream fish migration; 1 juvenile RB was captured in watercourse or frozen to bottom downstream from culvert barrier.

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TABLE 7.1-2 Cont’d

Feature ID Watercourse Name/ Fish Least Risk Biological Proposed Primary Proposed Pipeline Vehicle Crossing Riparian KP (005)3 UTM Site-Specific Comments5 Reclamation4 (PXID) Classification Presence Window Proposed Pipeline Contingency Method Reserve Zone BC-785 (SAR) 1176.74 Stoney Creek [S2] 10U 506592E Fish Bearing August 1 - September 15 No instream work Isolation with fish salvage Clear-Span Bridge 30 m Moderate to high potential for salmonids; adult chum spawners were E or F (W1820.2) 5455441N proposed; crossing over and water quality monitoring observed in October 2013, and numerous juvenile salmonids were captured channelized section (1) at the PPC (August 2014); proposed critical habitat for NDC, which includes a 15 m riparian reserve strip along left and right banks; avoid NDC spawning period of May 1 - July 15 and adhere to additional mitigation measures to be provided in the final Pipeline EPP for watercourses identified as critical NDC habitat. Note: NDC are likely absent from the PPC and confined to lower reaches near the Brunette River; a perched culvert at the CN Railway tracks precludes upstream NDC migration. BC-785a1 1178.18 Silver Creek [S5] 10U 505758E - Open No instream work Isolation if water present Existing or other 10 m Extensive culvert network at the PPC and throughout much of the LSA; fish C or D (W1943.3) 5456098N proposed; crossing regulatory approved habitat potential is confined to 600 m long section of channel approx. 1 km over/under channelized crossing method downstream, where stream daylights and flows into the Brunette River; section channel was predominately dry at the PPC in July 2014. BC-785a4 1798.96 Unnamed Channel [S5] 10U 504977E - Open Isolation if water present - Existing or Ramp and 10 m Concrete ditch that runs from east to west along the south perimeter of C or D (W12638.0) 5457107N / Open-cut if dry or frozen Culvert or Clear-Span Burnaby Terminal (7.0 m wide by 650 m length); captures flow from surface to bottom Bridge runoff and discharges into large fire suppression pond in southwest corner of the terminal; converges with BC-785a3 (NFB), approx. 150 m to the east of pond; no fish habitat potential. BC-785a3 1180.01 Unnamed Channel [S5] 10U 504981E - Open Isolation if water present - Existing or Ramp and 10 m Engineered watercourse with steep gradient (20-30%) and series of artificial C or D (W1944.3) 5457155N / Open-cut if dry or frozen Culvert or Clear-Span weirs; flows through 500 mm culvert underneath an existing KMC access to bottom Bridge trail and into concrete ditch (BC-785a4 [NFB]), approx. 50 m downstream; ditch directs flow towards fire suppression pond (NFB), roughly 150 m to the west; pond drains into BC-785a2 (NFB) via small penstock; a 1000 mm stormwater outfall at Shellmont Street precludes all upstream fish migration. Notes: 1 Work should be completed within the Least Risk Biological Window Proposed 2 Timing Variance and/or DFO Self-Assessment of Serious Harm and CER/DFO Review may be required. 3 Single KP locations indicate the centre point, KP ranges indicate multiple crossing locations for the same feature ID. 4 Refer to section 6.4 of the Reclamation Management Plan for a description. 5 BCB = Black crappie BMC = Brassy minnow CCT = Coastal cutthroat trout CH = Chinook salmon CO = Coho salmon EU = Eulachon FB = fish-bearing GSG = Green sturgeon KO = Kokanee NDC = Nooksack Dace NSC = Northern pikeminnow PK = Pink salmon PMB = Pumpkinseed, Sunfish RB = Rainbow Trout SFPR = South Fraser Perimeter Road SG = Sturgeon (General) SSU = Salish Sucker ST = Steelhead TSB = Threespine stickleback * Crossing was assigned a precautionary default fish-bearing status, as sampling effort was insufficient to confirm it to be nonfish-bearing. Source: Watercourse Crossing Inventory, CER Condition 43. 2017.SSEID005.14. Watercourse Crossing Summary Table(s): Appendix A and B. Prepared for Trans Mountain Pipeline ULC. Calgary, AB.

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7.2 Hydrology Detailed information on the groundwater features can be found in Table 7.2-1. Additional mitigation measures can be found in the Sections 6.0, 7.0, 10.0 and 12.0 of the Pipeline EPP (Volume 2 of the Environmental Plans) for springs and groundwater features respectively, as well as in the Groundwater Management section (Appendix G of the Pipeline EPP).

TABLE 7.2-1

SUMMARY OF GROUNDWATER FEATURES

Feature ID Feature1 Legal Location / PNG Notation KP Start KP End Start UTM End UTM Site-Specific Mitigation HY-107 Partially Confined Aquifer C-089-H/092-G-02 to D-100-H/092-G-02 1147.41 1149.51 10U 528521E 5444784N 10U 528011E 5445859N • Implement the mitigation measures below, and refer to the Groundwater Management section (Appendix G of the Pipeline HY-212 Potentially Vulnerable Aquifer C-011-J/092-G-02 to D-015-J/092-G-02 1152.71 1155.76 10U 526292E 5447648N 10U 523294E 5447770N EPP) for additional information. HY-108 Shallow groundwater; artesian conditions C-012-J/092-G-02 to D-055-K/092-G-02 1153.61 1166.54 10U 525418E 5447854N 10U 513997E 5451335N • Assess the need for well points or other dewatering methods, prior to commencing trenching, to intercept groundwater at site- specific locations before it enters the trench. HY-109 Partially Confined Aquifer D-018-J/092-G-02 to D-054-K/092-G-02 1158.31 1165.54 10U 520783E 5447609N 10U 514942E 5451067N • Prevent the pipeline trench and bedding from becoming a conduit for increased groundwater flow by installing subdrains and HY-110 Partially Confined Aquifer C-054-K/092-G-02 to D-055-K/092-G-02 1165.64 1166.64 10U 514844E 5451083N 10U 513964E 5451429N trench breakers. HY-111 Shallow groundwater; artesian conditions B-065-K/092-G-02 to B-065-K/092-G-02 1167.24 1167.24 10U 513768E 5451996N 10U 513768E 5451997N • Dewater the trench, if warranted, when laying pipe in areas with high water tables. HY-144 Unconfined Aquifer C-065-K/092-G-02 to A-081-L/092-G-02 1167.74 1173.66 10U 513605E 5452469N 10U 508672E 5453550N HY-112 Partially Confined Aquifer A-081-L/092-G-02 to D-015-D/092-G-07 1173.76 1179.89 10U 508582E 5453595N 10U 504971E 5457032N Note: 1 Refer to the Groundwater Management Plan (Section 4.2 of the Volume 6 Environmental Plans) to features sourced from the ERCB/AGS Bulletin 66 Mapped Extents and for potential groundwater concerns associated with watercourse proximity. Source: Waterline Resources Inc. 2017. Groundwater Management Plan for the Trans Mountain Expansion Project. Prepared for Trans Mountain Pipeline ULC. Calgary, AB.

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7.3 Water Wells Detailed information for water wells located in the vicinity of the Project is presented in Table 7.3-2. Water wells identified in the field-verified survey which are located within the construction footprint will be flagged, and fenced prior to pipeline construction, to avoid well damage during construction. Provide an alternative potable water supply should monitoring indicate that a water well has been damaged (i.e., diminishment in quantity and/or quality) as a result of pipeline construction activity. Refer to the Groundwater Management section (Appendix G of the Pipeline EPP) for more detailed mitigation. The lists of wells provided below is not exhaustive and based solely on publicly available data, refer to the water well inventory for specific locations and site-specific information for wells labelled “-” within Table 7.3-2.

TABLE 7.3-2

SUMMARY OF WATER WELLS IN BRITISH COLUMBIA

Feature ID Well Feature1 UTM Nearest KP Distance from Centreline (m) Tenure Status Water Source FVS-112 -- -- 1145.1 85.6 ------FVS-113 -- -- 1145.3 134.8 ------FVS-53 Drinking Water 10U 529638E 5444336N 1146.2 80.8 Private Active Well FVS-55 -- -- 1147.2 38.6 ------FVS-41 -- 10U 528370E 5444680N 1147.5 139.7 -- Abandoned -- FVS-43 Drinking Water 10U 528382E 5444888N 1147.6 61.8 Private Active Well FVS-44 -- 10U 528366E 5444908N 1147.6 76.3 Private Inactive Well FVS-9 -- -- 1149.0 90.3 ------FVS-5 -- -- 1149.2 107.0 ------FVS-35 -- -- 1150.0 14.3 ------FVS-4 -- -- 1150.1 60.9 ------FVS-95 -- -- 1158.5 58.9 ------FVS-90 Industrial 10U 520436E 5447895N 1158.8 8.8 Private Active Well FVS-91 -- 10U 520431E 5447894N 1158.8 12.6 -- Decommissioned -- FVS-92 Other 10U 520428E 5448014N 1158.8 81.5 Private Active Well FVS-92 Other 10U 520428E 5448014N 1158.8 81.5 Private Active Well FVS-93 -- -- 1158.9 135.2 ------FVS-88 -- 10U 519946E 5448176N 1159.4 78.3 -- Abandoned -- FVS-8 -- -- 1160.0 126.3 ------Note: 1 Features included in this table are those with consent to be made public. Refer to the water well inventory for specific locations and site-specific information for wells marked with a “—” Source: Waterline Resources Inc. 2018. Groundwater Management Plan for the Trans Mountain Expansion Project. Prepared for Trans Mountain Pipeline ULC. Calgary, AB.

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8.0 SOILS/GEOLOGY Soils and geological features are outlined in the section below. This section includes soils and soils properties, as well as geologic features (i.e. potential acid rock drainage).

8.1 Soils Soil classifications and properties can be found in 8.1-2.

TABLE 8.1-2

SUMMARY OF SOIL CHARACTERISTICS IN BRITISH COLUMBIA

Colour Differentiation Erosion Rating2 Susceptible to Susceptible Topsoil Depth Between Topsoil and Compaction and to Trench Soil Symbol Soil Name Soil Classification Parent Material Texture Class Range (cm)1 Drainage Class Subsoil Wind Water Rutting Instability Comments/Mitigation ALB1 Albreda 1 Eluviated Eutric Brunisols glaciofluvial gravelly sandy loam-loamy 0 rapidly -- M-H S-H -- Yes Gravelly material. sand ALB2 Albreda 2 Eluviated Eutric and Dystric Brunisols glaciofluvial loamy sand-sand 0 rapidly -- H S -- Yes -- ALB2/gv Albreda 2 overlying Eluviated Eutric and Dystric Brunisols glaciofluvial loamy sand-sand/gravel 0 rapidly -- H S-M -- Yes Gravel at 35-90 cm below the surface. gravel Overstrip to 25 cm. ALL Allie Orthic and Brunisolic Gray Luvisols till loam-clay loam 0-20 well fair M S-H -- -- No topsoil in treed areas. AND Andrew Eluviated Eutric Brunisols glaciofluvial gravelly sandy loam- 0 rapidly -- H S-H -- Yes Gravelly material. gravelly loamy sand AND1 Andrew 1 Orthic Black Chernozem glaciofluvial gravelly sandy loam- 13-16 rapidly good M H -- Yes Gravelly material. gravelly loamy sand AS Avalanche Scar Regosols colluvium cobbly 0 well -- M-H ------Unstable material. AV Alluvium Orthic Regosol fluvial gravelly loamy sand - sand 0 well to rapidly - M-H S -- Yes Variable textured material. Salvage upper 15-20 cm of material. BFD Banford Terric Humisols organic/fluvial or lacustrine organic/silty clay loam 25 very poorly fair S S Yes Yes Salvage upper 25 cm of peat. Unstable trench walls in excessively wet areas. BLP Blackpool Orthic Regosols fluvial fine sandy loam-silt 0-20 well fair M-H S -- Yes -- loam/sandy loam-loamy sand BLP/gv Blackpool overlying Orthic Regosols fluvial fine sandy loam-silt 10 well to rapidly fair M S -- Yes Gravel at 15-25 cm below the surface. gravel loam/gravelly loamy sand Overstrip to 15 cm. BLR Blue River Rego Humic Gleysol fluvial loam-silt loam-fine sandy 15-26 imperfectly to good M S Yes Yes Unstable trench walls in excessively wet areas. loam poorly BRY Berry Gleyed Podzolic Gray Luvisol glaciomarine silty clay loam-silty clay 12-31 imperfectly fair-good M S-M -- -- Very firm Bt horizon at 38-48 cm below the surface. BZN Buntzen Duric Ferro-Humic Podzol till loam-gravelly sandy loam 0 well to moderately -- M M-H -- -- No topsoil in treed areas. Cemented layer at about well the 70 cm depth byCHM1 bouldery Cheam 1 Orthic Sombric Brunisols and Orthic Humo-Ferric Podzol bouldery colluvium bouldery sandy loam- 10-25 well to rapidly good M-H H -- -- Bouldery colluvial material. bouldery loamy sand byKKT1 bouldery Kwikoit 1 Eluviated and Orthic Dystric Brunisols bouldery glaciofluvial bouldery gravelly loamy 0 rapidly -- M-H S-M -- Yes Boulders on surface may hinder salvage sand operations. byKWY bouldery Kenworthy Orthic Sombric Brunisols and Orthic Humo-Ferric Podzol bouldery colluvium bouldery sandy loam- 11 well fair M H -- -- Bouldery colluvial material. bouldery loam byMIN bouldery Minnie Orthic Eutric Brunisol bouldery till bouldery loam-bouldery 0 well -- M-H M-H -- -- Little or no topsoil in treed areas. sandy loam byRSM bouldery Roserim Eluviated and Orthic Eutric Brunisols bouldery till bouldery sandy loam-loam 0 well to rapidly -- M-H H -- -- Boulders on surface may hinder salvage operations. bySC bouldery Stream N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3. Channel bySES1 bouldery Struthers 1 Eluviated and Orthic Eutric Brunisols glaciofluvial bouldery gravelly sandy 0 rapidly -- M-H S -- Yes Boulders on surface may hinder salvage loam-loamy sand operations. bySPN bouldery Stukemapten Eluviated Dystric Brunisols bouldery fluvial fan bouldery gravelly sandy 0 well to rapidly -- M-H M -- -- Boulders on surface may hinder salvage loam-loam operations. BZN Buntzen Durric Ferro-Humic Podzol till loam-gravelly sandy loam 0 well to moderately -- M M-H -- -- No topsoil in treed areas. well Cemented layer at about the 70 cm depth. CAY Cayenne Eluviated and Orthic Dystric Brunisols colluvium gravelly sandy loam-loamy 0-15 well to rapidly fair M-H S-M -- -- Variable textured material. sand CGH Cavanaugh Orthic and Eluviated Eutric Brunisols colluvium gravelly sandy loam- 0 well to rapidly -- H M-H -- Yes Gravelly colluvium. gravelly loamy sand CHM1 Cheam 1 Orthic Sombric Brunisols and Orthic Humo-Ferric Podzol colluvium gravelly sandy loam- 8-28 well to rapidly good M-H M-H -- -- Usually exceedingly stony. gravelly loamy sand CHS Chasm Orthic and Eluviated Eutric Brunisols colluvial fan sandy loam-loam 0-14 well poor-fair M S-H -- -- Little or no topsoil in treed areas.

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TABLE 8.1-2 Cont’d

Colour Differentiation Erosion Rating2 Susceptible to Susceptible Topsoil Depth Between Topsoil and Compaction and to Trench Soil Symbol Soil Name Soil Classification Parent Material Texture Class Range (cm)1 Drainage Class Subsoil Wind Water Rutting Instability Comments/Mitigation CKN Calkins Rego Humic Gleysol eolian/till silt loam/loam-silty clay 27 poorly good M S Yes Yes Unstable trench walls in excessively wet areas. loam COM Commonage Orthic Dark Brown Chernozem colluvial fan loam-sandy loam 20 well fair M H -- -- Occurs on grassy slopes. COQ Coquihalla Orthic Humo-Ferric Podzol till and colluvium gravelly sandy loam- 0 well to rapidly -- M-H M-H -- -- no topsoil; Salvage upper 15-20 cm. gravelly loamy sand CRY Cranberry Orthic Regosol fluvial-glaciofluvial loamy sand 0-10 rapidly fair H S -- Yes -- CTW Cottonwood Eluviated and Orthic Eutric Brunisols glaciolacustrine silt loam-fine sandy loam 0 well to moderately -- M S-M ------well CVH Carvolth Rego Humic Gleysol fluvial loam-clay loam-silty clay 14-70 poorly to very good M S Yes Yes Unstable trench walls in excessively wet areas. loam poorly CVH1 Carvolth 1 Rego Humic Gleysol fluvial loam-silty clay loam/sandy 14-40 poorly to very good M S Yes Yes Sands at 40-90 cm below the surface. loam-loamy sand poorly Recommended for the three-lift soil handling procedure. diCAY disturbed Cayenne -- colluvium-fluvial fan gravelly sandy loam 0 well to rapidly -- M-H S-H -- -- Disturbed due to prior construction activities. Salvage upper 15-20 cm of material. diKKT1 disturbed Kwikoit1 -- glaciofluvial gravelly sandy loam-loamy 0 rapidly -- M-H M -- Yes Disturbed due to prior construction activities. sand Salvage upper 15-20 cm of material. diRSM disturbed Roserim -- till gravelly sandy loam-loam 0 well -- M-H M-H -- -- Disturbed due to prior construction activities. Salvage upper 15-20 cm of material. diSES1 disturbed Struthers 1 -- glaciofluvial gravelly sandy loam-loamy 0 rapidly -- M-H S -- Yes Disturbed due to prior construction activities. sand diSWA disturbed Snookwa -- till gravelly sandy loam-loamy 0-22 well to rapidly fair M-H S-H -- -- Disturbed due to prior construction activities. sand DL Disturbed Land ------0-20 ------Depth of topsoil to be salvaged is indicated in the map unit designation. DXN Dixon Rego Humic Gleysol lacustrine/fluvial silty clay loam/sand 25-37 poorly good M S Yes Yes Sands at 50-80 cm below the surface. Recommended for the three-lift soil handling procedure. ELK Elk Rego Humic Gleysol and Rego Gleysol fluvial loam-silt loam-sandy loam 8-35 poorly good M S Yes Yes Unstable trench walls in excessively wet areas. EXU Exlou Orthic Gray Luvisol glaciolacustrine fine sandy loam-silt loam- 5-17 well fair M S-H ------loam FAF Fairfield Gleyed Humic Regosol and Gleyed Melanic Brunisol fluvial loam-silt loam-silty clay 15-40 moderately well to good M S ------loam imperfectly FAF1 Fairfield 1 Gleyed Humic Regosol and Gleyed Melanic Brunisol fluvial loam-silt loam-silty clay 10-33 moderately well to good M S -- Yes Sands at 26-90 cm below the surface. loam/sandy loam-loamy imperfectly Some of these soils have been recommended for sand the three-lift soil handling procedure. FLT Flat Creek Orthic Brown Chernozem fluvial silt loam-loam 7-15 well poor-fair M S -- -- Occurs on river terraces. FOX Fox Eluviated and Orthic Dystric Brunisols bouldery till silt loam-loam 0 well to moderately -- M M-H -- -- Stones consist mainly of schist bedrock fragments. well FRS Frances Orthic and Gleyed Regosols fluvial loam-silt loam-loamy sand 0 well to imperfectly -- M S -- Yes -- FTZ Fitzwilliam Eluviated and Orthic Eutric Brunisols glaciofluvial gravelly coarse sand 0 rapidly -- H H -- Yes -- GHT1 Ghita 1 Terric Mesisol organic/fluvial-glaciofluvial organic/silt loam-sand 0 very poorly -- S S Yes Yes Underlying silts and sands will be encountered within trench depth. Salvage upper 40 cm of material. GHT2 Ghita 2 Typic Mesisol organic organic 0 very poorly -- S S Yes -- -- glALB2 gleyed Albreda 2 Gleyed Eluviated Dystric Brunisol glaciofluvial loamy sand-sand 0 imperfectly -- H S -- Yes -- glALL gleyed Allie Gleyed Grey Luvisol and Gleyed Brunisolic Gray Luvisol till loam-clay loam 14 imperfectly to fair M S Yes -- Salvage upper 15 cm of material. poorly glAV gleyed Alluvium Gleyed Regosol fluvial silt loam-sandy loam 8 imperfectly fair M-H S -- Yes Salvage upper 15-20 cm of material. glBLP gleyed Blackpool Gleyed Regosol fluvial silt loam-loam 0 imperfectly -- M S -- Yes -- glCTW gleyed Cottonwood Gleyed Eluviated Eutric Brunisol and Gleyed Eutric Brunisol glaciolacustrine silt loam-fine sandy loam 0 imperfectly to -- M S Yes -- -- poorly glNLN gleyed Nicholson Gleyed Podzolic Gray Luvisol and Gleyed Brunisolic Gray glaciomarine silty clay loam-silty clay 0-5 moderately well to poor-fair M S Yes -- -- Luvisol imperfectly glTPL gleyed Trapp Lake Gleyed Dark Brown Chernozem till loam-sandy loam 17 imperfectly fair-good M S Yes -- -- glVMT gleyed Valemount Gleyed Eluviated Dystric Brunisol fluvial fan silt loam-silt 0 imperfectly -- M S -- -- Salvage upper 15-20 cm of material glWHC gleyed Whatcom Gleyed Luvic Humo-Ferric Podzol eolian/glaciomarine silt loam/silty clay loam 27 imperfectly good M S Yes -- Very firm IIBtgj horizon at 65 cm below the surface. GLY1 Glossey 1 Eluviated and Orthic Eutric Brunisols glaciofluvial gravelly sandy loam- 0-14 rapidly poor-fair H S-H -- Yes Little or no topsoil in treed areas. gravelly sand GLY2 Glossey 2 Eluviated and Orthic Eutric Brunisols glaciofluvial sandy loam-loamy sand 0-25 rapidly poor-fair H S-H -- Yes Little or no topsoil in treed areas.

SHEET 39 of 47

TABLE 8.1-2 Cont’d

Colour Differentiation Erosion Rating2 Susceptible to Susceptible Topsoil Depth Between Topsoil and Compaction and to Trench Soil Symbol Soil Name Soil Classification Parent Material Texture Class Range (cm)1 Drainage Class Subsoil Wind Water Rutting Instability Comments/Mitigation GLY2/gv Glossey 2 overlying Orthic Eutric Brunisols glaciofluvial sandy loam-loamy 0 rapidly -- H S -- Yes Gravel at 70 cm below the surface. gravel sand/gravelly sand GPS1 Glimpse 1 Orthic Dark Brown Chernozem glaciofluvial gravelly loamy sand 11-12 rapidly fair-good H S -- Yes Gravelly below the topsoil. GPS2 Glimpse 2 Orthic Dark Brown Chernozem glaciofluvial loamy sand-sand 14 rapidly fair-good H M -- Yes -- GVY Glen Valley Typic Fibrisols organic organic 0 very poorly -- S S Yes -- Salvage upper 40 cm of peat for replacement. GWN Gwenn Orthic and Eluviated Black Chernozems eolian/glaciofluvial sandy loam-silt 11-20 well to rapidly good M S-M -- Yes Gravel at shallow depths. loam/gravelly sand HPD Hopedale Rego Humic Gleysol fluvial loam-silt loam/sand 20-32 poorly good M S Yes Yes Sands at 40-80 cm below the surface. Recommended for the three-lift soil handling procedure. HRS Harrison Orthic Dystric Brunisol fluvial fan-colluvium gravelly sandy loam- 7 well to rapidly poor-fair M-H M -- -- Little or no topsoil in treed areas. gravelly loamy sand Usually exceedingly stony. HRS1 Harrison 1 Orthic Sombric Brunisol and Orthic Humo-Ferric Podzol fluvial fan-colluvium gravelly sandy loam- 10-30 well to rapidly good M-H S-H -- -- Usually exceedingly stony. gravelly loamy sand HUF Humic Folisol Humic Folisol till and colluvial organic/gravelly sandy 30-40 moderately well to good S-M S-H Yes -- Salvage forest organic material loam or rock imperfectly HZW Hazelwood Orthic and Rego Humic Gleysols lacustrine silty clay loam-silty clay 15-54 poorly good S-M S Yes Yes Unstable trench walls in excessively wet areas. ISR Isar Orthic Regosol and Orthic Humic Regosol fluvial gravelly sandy loam- 0-25 well to rapidly poor-good M-H S -- Yes Often gravelly at depth and no topsoil horizon. gravelly loamy sand JCK Jackman Eluviated and Orthic Dystric Brunisols eolian sandy loam-loamy sand 0 well to rapidly -- H S-H -- Yes Very coarse textured material may hinder revegetation efforts. KKT1 Kwikoit 1 Eluviated and Orthic Dystric Brunisols glaciofluvial gravelly sandy loam-loamy 0 rapidly -- M-H S-H -- Yes Gravelly material. sand KKT2 Kwikoit 2 Eluviated and Orthic Dystric Brunisols glaciofluvial loamy sand-sand 0 rapidly -- H S-H -- Yes -- KKT2/gv Kwikoit 2 overlying Eluviated and Orthic Dystric Brunisols glaciofluvial loamy sand-sand/gravel 0 rapidly -- H M-H -- Yes Gravel at 35-60 cm below the surface. gravel Overstrip to 25 cm. KKT3 Kwikoit 3 Orthic Dystric Brunisol glaciofluvial-fluvial silt loam-loam-sandy loam 0 well -- M-H S ------KWY Kenworthy Orthic Sombric Brunisol and Orthic Humo-Ferric Podzol colluvium sandy loam-loam to gravel 11-25 well to moderately good M S ------well LBM Lundbom Orthic Brown Chernozem glaciolacustrine silt loam-silty clay loam 8-22 well to moderately poor-fair M S-H ------well LBM1 Lundbom 1 Orthic Dark Brown Chernozem glaciolacustrine loam-silt loam 12-25 well to moderately fair-good M S-M -- -- Some of these soils have been recommended to well be overstripped to the 20 cm depth. LDB Lac du Bois Solonetzic Dark Brown Chernozem glaciolacustrine silty clay loam 9-11 moderately well fair M M -- -- Salts at 22-35 cm below the surface. LHN Lichen Orthic and Brunisolic Gray Luvisols glaciolacustrine silt loam-silty clay loam 8-23 moderately well fair-good M S-M -- -- Often irrigated hay fields. LLW Laidlaw Orthic Dystric Brunisol fluvial sandy loam-loamy sand 0-17 well to rapidly fair H S-M -- Yes -- LMB Lumbum Typic Mesisol organic organic 0 very poorly -- S S Yes -- -- LUC Lucerne Eluviated Dystric Brunisol till sandy loam-loam-silt loam 0 well -- M M-H -- -- Upper 10-15 cm of material is usually not as stony. LZC Lonzo Creek Ortho Humo-Ferric Podzol and Orthic Dystric Brunisol eolian/till loam-silt loam/loam-sandy 0-20 well to moderately poor-fair M S-H -- -- Till at 25-50 cm below the surface. loam well Salvage 15-20 cm of material from all treed lands. MIN Minnie Orthic Gray Luvisol and Eluviated Eutric Brunisol till loam-sandy loam 0-4 well poor-fair M-H S-H -- -- Little or no topsoil in treed areas. MNE McNomee Orthic Regosols fluvial fine sandy loam/gravelly 0 well to rapidly -- M-H S -- Yes Gravel at 20-22 cm below the surface. loamy sand-sand MQN McQueen Orthic Dark Brown Chernozem till loam-sandy loam 8-21 well fair-good M S-H ------MSQ Mosquito Gleyed Humic Regosol fluvial fine sandy 10-22 imperfectly fair-good M S Yes Yes -- loam-loam/sandy loam- loamy sand MSY Mossey Orthic Black Chernozem till loam-sandy loam 12-18 well good M M-H ------MVE McElvee Rego Humic Gleysol fluvial loam-silty clay loam 25-32 poorly good M S Yes Yes Unstable trench walls in excessively wet areas. NVN Niven Cumulic Humic Gleysol lacustrine/organic silt loam/silty clay loam- 28-32 poorly to very good M S Yes Yes Peat at 40-55 cm below the surface. organic poorly O Open Water N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 OHG Orthic Humic Gleysol Orthic Humic Gleysol till or glaciofluvial loam-sandy loam 20 poorly good S S Yes Yes May have unstable trench walls in excessively wet areas. ptBLR peaty Blue River peaty Rego Humic Gleysol fluvial organic/loam-silt loam-fine 0-25 poorly to very good S S-M Yes Yes Salvage both the peat and underlying topsoil. sandy loam poorly Unstable trench walls in excessively wet areas. ptRHG peaty Rego Humic peaty Rego Humic Gleysol glaciofluvial-colluvium sandy loam-loam/gravelly 20-25 very poorly fair-good S S Yes Yes Salvage both the peat and underlying topsoil to a Gleysol sandy loam maximum depth of 40 cm. ptVLN peaty Vermillion Lakes peaty Rego Gleysol organic/fluvial organic/silt loam-gravelly 0 very poorly -- S S Yes Yes Salvage peat material. loamy sand Unstable trench walls in excessively wet areas. RB Rough Broken N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 H N/A3 N/A3 N/A3 SHEET 40 of 47

TABLE 8.1-2 Cont’d

Colour Differentiation Erosion Rating2 Susceptible to Susceptible Topsoil Depth Between Topsoil and Compaction and to Trench Soil Symbol Soil Name Soil Classification Parent Material Texture Class Range (cm)1 Drainage Class Subsoil Wind Water Rutting Instability Comments/Mitigation RI Major River N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 ------N/A3 RO Rock N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 RSM Roserim Eluviated and Orthic Eutric Brunisols till gravelly sandy loam-loam 0-18 well fair M-H S-H -- -- Salvage upper 15-20 cm of material from undisturbed areas. RYD Ryder Ortho Humo-Ferric Podzol and Orthic Dystric Brunisol eolian/till loam-silt loam/loam-sandy 10-15 well to moderately poor-fair M S-H -- -- Till at 50-85 cm below the surface. loam well saFLT saline Flat Creek saline Orthic Brown Chernozem fluvial silt loam-loam 7-10 well poor-fair M S -- -- These soils are strongly saline below the topsoil horizon. scTNQ Tranquille with a saline Orthic Brown Chernozem with a saline lower subsoil till loam - sandy loam 13 well poor-fair M M -- -- These soils have been recommended to be lower subsoil overstripped to the 20-25 cm depth. SC Stream Channel N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 N/A3 SCT Scat Orthic and Rego Humic Gleysol eolian/glaciomarine silt loam/silty clay loam- 0-40 poorly poor-good M S Yes Yes Unstable trench walls in excessively wet areas. silty clay SES1 Struthers 1 Eluviated and Orthic Eutric Brunisols glaciofluvial gravelly sandy loam-loamy 0-20 rapidly fair M-H S-H -- Yes Gravelly material. sand SES2 Struthers 2 Eluviated and Orthic Eutric Brunisols glaciofluvial loamy sand-sand 0-25 rapidly fair H S-H -- Yes Salvage upper 15-20 cm of material SES2/gv Struthers 2 overlying Eluviated and Orthic Eutric Brunisols glaciofluvial loamy sand-sand/gravel 0-24 rapidly fair H S -- Yes Gravel at 25-40 cm below the surface. gravel Overstrip to 25 cm or carry out three-lift soil handling procedure. SES3 Struthers 3 Eluviated and Orthic Eutric Brunisols glaciofluvial silt loam-loam-sandy loam 0-15 well fair M S-M -- -- Some of these soils have gravel at 42-80 cm below the surface. Those that have gravel at depth have been recommend to be overstripped to 25 cm or the three-lift soil handling procedure. shALL shallow Allie Orthic and Brunisolic Gray Luvisols till/hard consolidated stony loam/rock 0 well -- M M-H -- -- Hard rock will be encountered at 30-70 cm below bedrock the surface. shbySPN shallow, bouldery Eluviated Dystric Brunisol bouldery fluvial fan bouldery, gravelly sandy 0 well -- M-H H -- -- Hard rock at 40 cm. Stukemapten loam/rock shBZN Shallow Buntzen Duric Ferro-Humic Podzol till/rock loam-gravelly sandy 0 well to moderately -- M M-H -- -- No topsoil in treed areas. Hard rock at shallow loam/rock well depths. shCHM shallow Cheam Orthic and Eluviated Dystric Brunisols colluvium/hard gravelly loam-sandy 0-5 well to rapidly fair M-H H -- -- Consolidated hard rock within 55 cm of surface. consolidated bedrock loam/rock shCHM1 shallow Cheam 1 Orthic Sombric Brunisol and Orthic Humo-Ferric Podzol colluvium/hard sandy loam-loam 20-40 well to rapidly good M-H H -- -- Consolidated hard rock at 35-75 cm below the consolidated bedrock surface. shCHS shallow Chasm Orthic and Eluviated Eutric Brunisols colluvial fan/hard sandy loam-loam/rock 0 well to rapidly -- M H -- -- Hard rock at shallow depths. consolidated bedrock shCOQ Shallow Coquihalla Orthic Humo-Ferric Podzol till and colluvium/hard gravelly sandy loam- 0 well to rapidly -- M-H M-H -- -- No topsoil; Salvage upper 15-20 cm. bedrock gravelly loamy sand/ rock Hard rock within trench depth. shCTW shallow Cottonwood Eluviated and Orthic Eutric Brunisols glaciolacustrine/till silt loam/loam 0 well -- M S -- -- Salvage upper 15-20 cm of material shCTY shallow Courtney Orthic Brown Chernozem colluvium/hard gravelly sandy loam- 11 well poor-fair H H -- -- Hard rock at shallow depths. consolidated bedrock loam/rock shFLT shallow Flat Creek Orthic Brown Chernozem fluvial/till silt loam-loam/stony loam 11-14 well poor-fair M S-M -- -- Stony till within 50 cm of the surface. shJCK shallow Jackman Eluviated Dystric Brunisol eolian/till loamy sand/loam 0 well to rapidly -- H S -- Yes Till at 75 cm below the surface. shLUC shallow Lucerne Eluviated Dystric Brunisol till/hard consolidated sandy loam-loam-silt 0 well -- M H -- -- Hard rock will be encountered at 30-80 cm below bedrock loam/rock the surface. shMIN shallow Minnie Orthic Gray Luvisol and Eluviated Eutric Brunisol till/hard consolidated loam-sandy loam/rock 0 well -- M-H S-H -- -- Hard rock at shallow depths. bedrock shMQN Shallow McQueen Orthic Dark Brown Chernozem till loam sandy loam 6-20 well to moderately fair-good M H ------well shRSM shallow Roserim Eluviated and Orthic Eutric Brunisols till/hard consolidated gravelly sandy loam/rock 0 well -- M-H H -- -- Hard rock at 40-70 cm. bedrock shSMT Shallow Summit Eluviated Dystric Brunisol till – colluvium,/hard gravelly sandy loam- 0 well to rapidly -- M-H H -- -- No topsoil; Salvage upper 15-20 cm. bedrock gravelly loamy sand/ rock Hard rock within trench depth. shSWA shallow Snookwa Eluviated and Orthic Dystric Brunisols till/hard consolidated gravelly sandy loam/rock 0 well -- M-H H -- -- Weathered bedrock or hard rock at 28-75 cm below bedrock the surface. shTIM shallow Timber Eluviated Eutric Brunisol till/hard consolidated loam-sandy loam/rock 0 well -- M H -- -- Hard rock at shallow depths. bedrock shTKW shallow Tunkwa Orthic Gray Luvisol till/hard consolidated sandy loam-clay loam/rock 0 well to moderately -- M H -- -- Hard rock at shallow depths. bedrock well shTLE shallow Tullee Orthic Black Chernozem till/hard consolidated loam-sandy loam/rock 22-24 well good M M-H -- -- Hard rock at shallow depths. bedrock shTNQ shallow Tranquille Orthic Brown Chernozem till/hard consolidated loam-sandy loam/rock 10-14 well poor-fair M H -- -- Hard rock at shallow depths. bedrock SHEET 41 of 47

TABLE 8.1-2 Cont’d

Colour Differentiation Erosion Rating2 Susceptible to Susceptible Topsoil Depth Between Topsoil and Compaction and to Trench Soil Symbol Soil Name Soil Classification Parent Material Texture Class Range (cm)1 Drainage Class Subsoil Wind Water Rutting Instability Comments/Mitigation shTPL shallow Trapp Lake Orthic Dark Brown Chernozem till/hard consolidated loam-sandy loam/rock 9-17 well fair-good M H -- -- Hard rock at shallow depths. bedrock SIM Sim Rego Humic Gleysol lacustrine or fluvial loam, silt loam, silty clay 34-44 poorly good M S Yes Yes Sandy layer from 36-100 cm below the surface. loam Recommended for the three-lift soil handling procedure. SMS Sumas Rego Humic Gleysol fluvial sandy loam-loamy sand 10-42 poorly good H S Yes Yes -- SMT Summit Eluviated Dystric Brunisol till - colluvium gravelly sandy loam- 0 well to rapidly -- M-H M-H -- -- No topsoil; salvage upper 15-20 cm. gravelly loamy sand SPN Stukemapten Eluviated Dystric Brunisol fluvial-colluvium gravelly sandy loam-loamy 0 well to rapidly -- M-H S-H -- -- Variable textured material. sand SRD Sardis Orthic Humic Regosol and Orthic Regosol fluvial gravelly loam-gravelly 0-29 well to moderately fair-good H S -- Yes Salvage upper 15-20 cm of material from all treed sandy loam well lands SSE Sunshine Ortho Humo-Ferric Podzol and Orthic Dystric Brunisol fluvial-glaciofluvial sandy loam-loamy sand 15-30 well good H S -- Yes -- stGLY1 stony Glossey 1 Eluviated and Orthic Eutric Brunisols glaciofluvial stony, gravelly sandy 0 rapidly -- H S -- Yes Stony and gravelly material. loam-stony, gravelly sand stLUC stony Lucerne Eluviated Dystric Brunisol stony till stony sandy loam-loam 0 well -- M H -- -- Extremely stony till. stMIN stony Minnie Orthic and Eluviated Eutric Brunisols stony till stony loam-stony sandy 0 well -- M-H S-H -- -- Little or no topsoil in treed areas. Exceedingly loam stony surface. stMQN stony McQueen Orthic Dark Brown Chernozem stony till stony loam-stony sandy 10 well fair-good M H -- -- Exceedingly stony surface loam stRSM stony Roserim Eluviated and Orthic Eutric Brunisols stony till stony sandy loam 10-20 well fair M-H S -- -- Extremely stony till. Salvage upper 10-20 cm of topsoil stTIM stony Timber Eluviated Eutric Brunisol stony till stony loam-stony sandy 0 well -- M M-H -- -- Little or no topsoil in treed areas. loam Exceedingly stony surface stWOO stony Woodley Eluviated and Orthic Dystric Brunisols fluvial fan stony sandy loam-stony 0 well to rapidly -- M-H S-H -- Yes Stony and gravelly conditions may hamper topsoil loamy sand salvaging. SWA Snookwa Eluviated and Orthic Dystric Brunisols till gravelly sandy loam-loamy 0 well to rapidly -- M-H M-H -- -- No topsoil in treed areas. sand TIM Timber Eluviated Eutric Brunisol till loam-sandy loam 0 well -- M M-H -- -- Little or no topsoil in treed areas. TKW Tunkwa Orthic Gray Luvisol till sandy loam-clay loam 0-10 well to moderately -- M S-H -- -- Little or no topsoil in treed areas. well TLE Tullee Orthic Black Chernozem till loam-sandy loam 8-38 well good M S-H ------TNQ Tranquille Orthic Brown Chernozem till loam-sandy loam 10-33 well poor-fair M S-H ------TPL Trapp Lake Orthic Dark Brown Chernozem till loam-sandy loam 8-28 well fair-good M S-H ------TYM Typic Mesisol Typic Mesisol organic organic 0 very poorly -- S S Yes -- -- VLN Vermillion Lakes Rego Gleysol fluvial silt loam 0-25 poorly to very fair-good M S Yes Yes Unstable trench walls in excessively wet areas. poorly VMT Valemount Eluviated and Orthic Dystric Brunisols fluvial fan silt loam-very fine sandy 0-15 well fair M S -- -- Salvage upper 15-30 cm of material from treed loam lands WHC Whatcom Luvic Humo-Ferric Podzol eolian/glaciomarine silt loam/silty clay loam 0-35 moderately well fair-good M S-H -- -- Very firm IIBt horizon at 40-85 cm below the surface. WOO Woodley Eluviated and Orthic Dystric Brunisols fluvial fan sandy loam-gravelly loamy 0 well to rapidly -- M-H S-H -- Yes Upper 20-40 cm of material is usually gravel-free. sand NS Not Surveyed TBD4 TBD4 TBD4 TBD4 TBD4 TBD4 TBD4 TBD4 TBD4 TBD4 TBD4 Notes: 1 Topsoil depth ranges may not be representative of soil depths provided on the EAS due to adjustments made for construction purposes. 2 Erosion Hazard Ratings: S = slight; M = moderate; H = high 3 Non-applicable soil properties indicated by N/A = not applicable. 4 Soil properties to be determined following subsequent studies are indicated by TBD = to be determined. Sources: Mentiga Pedology Consultants Ltd. 2013. Soil Technical Report for the Trans Mountain Expansion Project RK 489.6 to RK 769 (Hargraves to Darfield Segment). Prepared for TERA Environmental Consultants. Edmonton, AB. Mentiga Pedology Consultants Ltd. 2013. Soil Technical Report for the Trans Mountain Expansion Project RK 811.8 to RK 971 (Blackpines to Hope Segment). Prepared for TERA Environmental Consultants. Edmonton, AB. Mentiga Pedology Consultants Ltd. 2013. Soil Technical Report for the Trans Mountain Expansion Project RK 1044.1 to RK1151.1 (Hope to Burnaby Segment). Prepared for TERA Environmental Consultants. Edmonton, AB. Mentiga Pedology Consultants Ltd. 2014. Soil Technical Report for the Coquihalla Summit Recreational Area. Prepared for TERA, a CH2M HILL Company. Edmonton, AB. Mentiga Pedology Consultants Ltd. 2014. Supplemental Soil Report. Four Reports Prepared for TERA, a CH2M HILL Company. Edmonton, AB. Mentiga Pedology Consultants Ltd. 2015. Supplemental Soil Report. Prepared for TERA, a CH2M HILL Company. Edmonton, AB. Mentiga Pedology Consultants Ltd. 2017. Supplemental Soil Report. Prepared for CH2M HILL Energy Canada Ltd. Edmonton, AB.

SHEET 42 of 47

8.2 Geology The Mitigation Decision Framework, as well as mitigation monitoring and reporting measures, can be found in the Metal Leaching and Acid Rock Drainage Management Plan (Section 4.1 in Volume 6 of the Environmental Plans).

8.3 Contamination Table 8.3-2 summarize the locations that have been identified as having moderate or high potential for contamination. The Mitigation Decision Framework, as well as mitigation monitoring and reporting measures, can be found in the Contamination Identification and Assessment Plan (Section 3.2 of Volume 6 of the Environmental Plans).

TABLE 8.3-2

LIST OF POTENTIAL MODERATE AND HIGH CONTAMINATION AREAS IN BRITISH COLUMBIA

Risk Description3 Classification UTM2 KP Start1 KP End1 Potential Contaminants of Concern Confirmed by Investigation Mitigation Surrey/Langley Industrial Area (note, area of shallow High 10U 522691E 5447741N 1154.81 1157.91 PHCs, metals, PAHs, VOCs, PCBs, antisapstain, and other chemicals Confirmed Follow the mitigation Decision Framework and associated groundwater) mitigation measures for handling or disposing contaminated soils Industrial Area Moderate 10U 519708E 5448446N 1159.31 1160.12 PHCs, metals, PAHs, VOCs, PCBs, antisapstain, and other chemicals - found in the Contamination Identification and Assessment section (Appendix G of the Pipeline EPP). Port Mann Landfill Moderate 10U 514482E 5451222N 1165.44 1166.54 Metals, nitrogen, chloride, phenols, VOCs, PHCs - Coquitlam High Risk Area (note, area of shallow High 10U 510736E 5452914N 1168.74 1169.97 PHCs, metals, PAHs, VOCs, PCBs, glycols, antisapstain, and other chemicals - groundwater) Moderate4 10U 511641E 5452611N 1169.97 1170.47 Not documented in available reports - High 10U 510858E 5452900N 1170.47 1171.97 PHCs, metals, PAHs, VOCs, PCBs, glycols, antisapstain, and other chemicals - High 10U 510091E 5453066N 1171.97 1172.17 PHCs, VOCs, metals, methane, carbon dioxide Confirmed High 10U 509902E 5453099N 1172.17 1172.41 PHCs, metals, PAHs, VOCs, PCBs, glycols, antisapstain, and other chemicals - High 10U 509452E 5453147N 1172.33 1173.37 PHCs, VOCs, metals, methane, carbon dioxide Confirmed Train Loading Area Moderate 10U 508140E 5453905N 1173.96 1174.67 PAHs, metals, herbicides - Burnaby Moderate Risk Area Moderate 10U 505640E 5456281N 1177.29 1179.79 PHCs, metals, PAHs - Notes: 1 KPs are approximate. KPs are based on SSEID005.14. 2 Northing and Easting of areas of interest are provided for the approximate middle point of the area of interest. 3 Description is interpreted from aerial imagery. 4 Based on the available reports this site is classified as moderate risk to impact the Project Footprint, however, as described in Section 4.6.1 of the Contamination Identification and Assessment Plan (Section 3.2 of Volume 6 of the Environmental Plans) three former landfills were operated in the Coquitlam High Risk Area. Elevated soil, groundwater or vapour concentrations sourced from the former landfills may present high risk of potential impact to the Project Footprint. * A 10 m buffer has been added to either site of location for better depiction on the EAS. PAH = Polycyclic Aromatic Hydrocarbon PCB = Polychlorinated Biphenyl PHC = Petroleum Hydrocarbon VOC = Volatile Organic Carbon

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9.0 RECLAMATION Descriptions of the Reclamation Units encountered by the Project are presented below. Recommended seed mixes as well as seeding rates for each reclamation unit are included. Refer to Figure 5.8.1 in the Reclamation Management Plan for the Seeding Method Decision Making Criteria flow chart (Section 9.1 of Volume 6 of the Environmental Plans).

When reclaiming temporary access roads or the bar ditch, seed disturbed areas using the recommended cover crop and/or grass mixture (as approved by the Appropriate Government Agency or Municipality) and, where warranted, install biodegradable erosion control measures. Where seed mixture is not specified, use the recommended cover crop and/or grass mixture for the Reclamation Unit where construction has occurred. For bar ditches on private roads, confirm any landowner seed mix requests.

9.1 Reclamation Unit 1 This section is intentionally left empty.

9.2 Reclamation Unit 2 This section is intentionally left empty.

9.3 Reclamation Unit 3 This section is intentionally left empty.

9.4 Reclamation Unit 4 This section is intentionally left empty.

9.5 Reclamation Unit 5 This section is intentionally left empty.

9.6 Reclamation Unit 6 This section is intentionally left empty.

9.7 Reclamation Unit 7

RU Number RU Name KP Start KP End Main BGC Zone Land Use and Setting Description 7.1 Lower Fraser 1144.91 1153.87 Southern Very Dry Maritime Coastal Western Hemlock (CWHxm) 90% cultivated field/rural and 10% young wet mixed forests and stream crossings. Site Series 01/05 and 07 drainages. 1153.87 Westridge Marine Southern Dry Maritime Coastal Western Hemlock (CWHxm1/CWHdm) 95% urban and 5% bog wetland and wet forest. Terminal

CWH – 2 Urban Cover Crop

Species % WT Species % WT Species Comox creeping red fescue 75 Turf-type tall fescue 40 Cereal (fall rye, winter wheat, oats, barley or triticale; species selected will vary with time of Camriv Canada bluegrass 17 Hard fescue 40 seeding) Schoen Slender hairgrass 8 Turf-type perennial ryegrass 20 Annual ryegrass

Total 100 Total 100 Seeding Rate (kg/ha) Seeding Rate (kg/ha) Seeding Rate (kg/ha) Broadcast 15 Broadcast 25 Cereals 15 to 45 Drill 6 Drill 15 Annual ryegrass 15 to 45 Erosion Control Hydroseed 30 to 45 Erosion Control Hydroseed 50 to 75 Area of Use Area of Use Area of Use Coastal highway and roadsides in natural areas Burnaby Terminal Natural regeneration sites (< 50% weeds) Westridge Marine Terminal Weedy and erosion prone sites Major transportation corridors and weed infested areas (> 50% non-native species)

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10.0 COARSE WOODY DEBRIS VOLUMES Recommended CWD volumes for watercourses are found in Table 10.1-3. CWD volumes for wetlands are found in Table 10.1-4. CWD volumes for wildlife habitat restoration are in Table 10.1-5. More information on measures related to CWD can be found in the Reclamation Management Plan (Section 9.0 of Volume 6 of the Environmental Plans) and the Pipeline EPP.

The target volumes in these tables are provided to guide material retention volumes and storage placement of CWD during clearing, and replacement during reclamation. Target volumes are calculated by desktop assessment and aligned with BC wildfire hazard abatement guidelines for forested ecosystems. Actual volumes will vary depending on existing site conditions (e.g., material availability, compatibility with surrounding land use, and storage space), which will be assessed and verified during clearing. CWD will not be retained in areas identified as having forest health issues such as insect pests and diseases that are associated with downed wood, or in locations where the landowner requests no CWD.

CWD, also referred to as rollback, are pieces of woody material greater than 7.5 cm in diameter within a minimum length of 2 m, although larger diameter and longer pieces are preferable for reclamation. In addition to the aforementioned, may also include larger branches, sections of tree boles or stumps with root wads, and include a variety of decay classes from various species. Where available and compatible with existing surrounding land use, CWD will be salvaged from non- merchantable wood within the Project Footprint, although merchantable timber may be required at select locations. CWD retained for use during reclamation will be stored in cleared areas on or off the Project Footprint and replaced on the Project Footprint at locations in proximity to the storage locations.

TABLE 10.1-3

COARSE WOODY DEBRIS TARGET VOLUMES FOR WATERCOURSES IN BC

Target Volume of Reclamation Target Coarse Woody Debris Target # of Stumps Watercourse ID Watercourse Name KP Start1 KP End1 Riparian Habitat Function Riparian Buffer Width (m) on each side (m3)2 for each side Notes2 BC-751c Unnamed Channel 1145.57 1145.62 M 10 5 4 Retain CWD if available and compatible with surrounding land use. BC-751c Unnamed Channel 1145.62 1145.64 M 10 5 4 BC-753 (SAR) Salmon River 1146.03 1146.12 H 30 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if available and compatible with surrounding land use; target CWD volume is 15 m3 and minimum 13 stumps. BC-759a Unnamed Channel 1150.16 1150.22 M 20 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if available and compatible with surrounding land use; target CWD volume is 10 m3 and minimum 9 stumps. BC-759d1 Unnamed Channel (Roadside Ditch) 1151.28 1151.54 M 10 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if available and compatible with surrounding land use; target CWD volume is 5 m3 and minimum 4 stumps. BC-759d2 Unnamed Channel (Roadside Ditch) 1151.54 1151.56 M 10 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if available and compatible with surrounding land use; target CWD volume is 5 m3; stump retention is not recommended. BC-766 East Munday Creek 1151.98 1152.38 M 20 0 0 Non-forested ecosystem BC-766a Unnamed Drainage (Wetland) 1153.02 1153.12 -- 10 5 4 Oregon spotted frog Early Draft critical habitat. Refer to wetland WT-1117. BC-766c Unnamed Drainage 1153.24 1153.59 -- 10 5 4 Oregon spotted frog Early Draft critical habitat. Refer to Wetland Complex 52. BC-767 West Munday Creek 1153.59 1153.63 M 30 0 0 Non-forested ecosystem BC-768 Yorkson Creek 1153.81 1153.88 M 20 0 0 Trenchless crossing. Industrial area. No CWD retention warranted. BC-768a Unnamed Channel 1154.25 1154.29 M 15 5 0 Retain CWD if available and compatible with surrounding land use. BC-768b Unnamed Channel 1155.64 1155.71 H 30 0 0 Non-forested ecosystem BC-770 Unnamed Channel 1158.04 1158.09 H 20 10 9 Retain CWD if available and compatible with surrounding land use. BC-770c1 Unnamed Channel (Roadside Ditch) 1158.48 1158.60 L 10 5 0 Non-forested ecosystem BC-770d Leoran Brook Creek 1158.89 1158.98 H 20 10 9 Retain CWD if available and compatible with surrounding land use. BC-770f Unnamed Channel 1159.17 1159.31 M 15 5 7 BC-771.1 Unnamed Channel 1159.27 1159.31 M 15 0 0 Trenchless crossing. Industrial area. No CWD retention warranted. BC-771a1 Unnamed Channel 1159.49 1159.55 L 20 0 0 Non-forested ecosystem BC-772a Unnamed Channel 1160.21 1160.33 L 15 0 0 BC-772a3 Unnamed Drainage (Wetland) 1161.10 1161.20 -- 100 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if BC-773.5 Unnamed Drainage (Wetland) 1161.84 1161.91 -- 100 0 0 available and compatible with surrounding land use. Pacific water shrew critical habitat. CWD target is 54 m3/ha, and minimum one stump/100 m3. BC-773b3 Unnamed Drainage (Wetland) 1162.33 1162.41 -- 100 0 0 BC-774a Unnamed Channel 1162.33 1162.72 H 100 0 0 BC-773b2 Unnamed Drainage (Wetland) 1162.33 1162.40 -- 100 0 0 BC-774b Unnamed Channel 1162.95 1163.19 M 100 30 55 Pacific water shrew critical habitat. CWD target is 54 m3/ha, and approximately one stump/100 m3. Note overlap in 100 m BC-774c Unnamed Drainage 1163.05 1163.31 -- 100 30 60 riparian buffer with BC-774b and BC-774c. BC-776a Unnamed Channel 1164.26 1164.30 H 20 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if available and compatible with surrounding land use; target CWD volume is 10 m3 and minimum 9 stumps. BC-777 Unnamed Channel 1164.86 1164.96 H 20 10 9 Retain CWD if available and compatible with surrounding land use. BC-777b Unnamed Channel 1165.96 1166.11 M 20 10 9 BC-780 Fraser River 1166.65 1166.72 M 50 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), no CWD retention is recommended for south side of river. Riparian buffer width not possible because of adjacent infrastructure. BC-780 Fraser River 1167.71 1167.76 M 50 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if available and compatible with surrounding land use. Riparian buffer width not possible because of adjacent infrastructure. Target CWD volume is 15 m3 and minimum 11 stumps on the north side only.

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TABLE 10.1-3 Cont’d

Target Volume of Reclamation Target Coarse Woody Debris Target # of Stumps Watercourse ID Watercourse Name KP Start1 KP End1 Riparian Habitat Function Riparian Buffer Width (m) on each side (m3)2 for each side Notes2 BC-780.1 Port Mann Slough 1167.71 1167.79 H 30 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if available and compatible with surrounding land use; target CWD volume is 10 m3 and minimum 9 stumps. BC-780a1 Unnamed Channel 1167.81 1167.94 H 30 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if BC-780a2 Unnamed Channel 1167.81 1168.14 M 30 0 0 available and compatible with surrounding land use; target CWD volume is 10 m3; stump retention is not recommended. BC-780a3 Unnamed Channel (Roadside Canal) 1168.28 1168.36 M 30 10 0 Retain CWD if available and compatible with surrounding land use. BC-780b Dawes Hill Creek 1169.32 1169.37 M 30 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if available and compatible with surrounding land use; target CWD volume is 10 m3; stump retention is not recommended. BC-781 Como Creek 1171.21 1171.29 M 30 10 0 Retain CWD if available and compatible with surrounding land use. BC-781a Unnamed Channel 1171.86 1171.95 L 30 10 0 BC-782 Nelson Creek 1172.27 1172.38 M 30 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if available and compatible with surrounding land use; target CWD volume is 10 m3; stump retention is not recommended. BC-782a Unnamed Channel 1173.27 1173.29 M 10 0 0 Trenchless. CWD retention not warranted. BC-783a2 (SAR) Keswick Park Creek 1173.68 1173.73 H 20 0 0 BC-783a4 (SAR) Unnamed Channel 1173.75 1173.89 H 20 0 0 BC-783b Holmes Creek 1175.12 1175.15 H 10 5 4 Retain CWD if available and compatible with surrounding land use. BC-784a Austin Creek 1175.34 1175.39 H 20 10 9 BC-784b Unnamed Channel 1175.77 1176.01 M 10 5 4 BC-785 (SAR) Stoney Creek 1176.49 1176.78 H 30 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if available and compatible with surrounding land use; target CWD volume is 15 m3 and 13 stumps. BC-785a1 Silver Creek 1178.16 1178.19 M 10 5 0 Retain CWD if available and compatible with surrounding land use. Riparian buffer width not possible because of adjacent infrastructure. BC-785a4 Unnamed Channel 1179.95 1179.98 -- 10 0 0 Within Burnaby Terminal. CWD not feasible. BC-785a3 Unnamed Channel 1179.99 1180.03 -- 10 0 0 Notes: 1 KPs are derived from spatial overlap of riparian buffers with the Project Footprint. In some cases, the Project Footprint crosses riparian buffers beyond the area immediately adjacent to the watercourse/wetland crossing. Therefore, overlap of footprint with riparian buffer does not always align with the watercourse/wetland crossing indicated on the EAS. 2 CWD will not be retained in areas identified as having forest health issues such as insect pests and diseases that are associated with downed wood. CWD will not be retained in locations where the landowner requests no CWD. CWD targets will vary based on availability of material and storage space in proximity to the riparian area.

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TABLE 10.1-4

COARSE WOODY DEBRIS TARGET VOLUMES FOR WETLANDS IN BRITISH COLUMBIA

Target Volume of Coarse Woody Debris on each side Target # of Stumps Wetland ID Wetland Class KP Start1 KP End1 Riparian Buffer Width (m) (m3)2 for each side Notes2 WT-782/WT-783 Shrubby Swamp 1146.01 1146.04 10 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if available and compatible with surrounding land use; target CWD volume is 5 m3 and minimum 4 stumps. WT-1118.44 Shrubby Swamp 1151.00 1151.26 10 5 4 Retain CWD if available and compatible with surrounding land use. WT-1118 Emergent Marsh 1152.13 1152.35 10 5 4 Generally, no CWD associated with these ecosystems. Retain large shrub/tree stems (> 7 cm diameter) if available and compatible with surrounding land use. WT-1117 Seasonal Emergent Marsh 1152.36 1153.24 10 5 4 Generally, no CWD associated with these ecosystems. Retain large shrub/tree stems (> 7 cm diameter) if available and compatible with surrounding land use. Refer to BC-766a (Oregon spotted frog Early Draft critical habitat). Wetland Complex 52 Seasonal Emergent Marsh 1153.24 1153.78 10 5 4 Retain CWD if available and compatible with surrounding land use. Oregon spotted frog Early Draft critical habitat. WT-1224 Shrubby Swamp 1161.20 1161.64 10 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if available and compatible with surrounding land use; target CWD volume is 54 m3/ha and approximately one stump/100 m2. Pacific water shrew critical habitat. Wetland Complex 53 Mixedwood Treed Swamp, Seasonal 1161.79 1162.72 10 0 0 Trenchless crossing. If clearing in riparian area is required (e.g., contingency crossing or construction access), retain CWD if Emergent Marsh available and compatible with surrounding land use; target CWD volume is 54 m3/ha and approximately one stump/100 m2. Pacific water shrew critical habitat. Notes: 1 KPs are derived from spatial overlap of riparian buffers with the Project Footprint. In some cases, the Project Footprint crosses riparian buffers beyond the area immediately adjacent to the watercourse/wetland crossing. Therefore, overlap of Footprint with riparian buffer does not always align with the watercourse/wetland crossing indicated on the EAS.. 2 CWD will not be retained in areas identified as having forest health issues such as insect pests and diseases that are associated with downed wood. CWD will not be retained in locations where the landowner requests no CWD. CWD targets will vary based on availability of material and storage space in proximity to the riparian area.

TABLE 10.1-5

COARSE WOODY DEBRIS TARGET VOLUMES FOR WILDLIFE HABITAT

Target Volume of Coarse Wildlife Area / Habitat Land Status KP Start KP End Woody Debris (m3/ha)1 Coarse Woody Debris Purpose Coarse Woody Debris Specifications Pacific water shrew final critical habitat (Fraser Private 1161.02 1161.13 54 To provide cover, nesting and • CWD replacement should be targeted within areas where it would naturally occur (i.e., where forested areas existed prior to construction or are Heights) foraging substrate adjacent to the pipeline construction footprint). Pacific water shrew final critical habitat (Fraser Private 1161.13 1162.76 54 • The target volume provided is an average of baseline conditions across the Fraser Heights critical habitat area. Replacement of CWD should achieve Heights) the target average volume per hectare, but mimic natural patterns (i.e., patchiness) of CWD accumulation (some areas will have higher volumes of Pacific water shrew final critical habitat (Fraser Private 1162.94 1163.30 54 CWD than others). To achieve this, CWD should be randomly scattered across the Project Footprint (single pieces) with overlap between some Heights) pieces (small piles). • Large pieces preferred (>20 cm diameter), however smaller pieces can also be used. Include a variety of decay classes if existing CWD can be salvaged prior to construction. • Coverage should not be so excessive that it inhibits vegetation growth, seeding or planting. Note: 1 CWD will not be retained in areas identified as having forest health issues such as insect pests and diseases that are associated with downed wood. Further details regarding CWD retention and replacement are provided in the Reclamation Management Plan (Volume 9.1 of the Environmental Plans), Wildlife Mitigation and Habitat Restoration Plans and Preliminary Caribou Habitat Restoration Plan (Section 6.1 of the Volume 6 Environmental Plans).

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