Appendix O. Environmental Site Assessment

Transcription

1 Appendix O Environmental Site Assessment

2 AECOM 3292 Production Way, Floor tel Burnaby, BC, Canada V5A 4R fax April 12, 2017 Metro Vancouver 4330 Kingsway Burnaby, BCV5H 4G8 AECOM Project No: Regarding: Limited Baseline Study/Phase I Environmental Site Assessment Site:... Proposed Site of LGSWWTP Pump Station Sincerely, AECOM Canada Ltd. DRAFT Monica Danon-Schaffer, PhD, P.Eng. Senior Engineer monica.danonschaffer@aecom.com THIS REPORT CONTAINS PROVISIONS LIMITING LIABILITY, THE SCOPE OF THE REPORT AND THIRD PARTY RELIANCE

3 Page 2 April 12, 2017 Executive Summary Site: Proposed location of the LGSWWTP Pump Station Property Owner: Land use/zoning: Most recent property use: Former property use: Closest civic address is: 101 Bridge Road, West Vancouver, British Columbia Port of Vancouver M1 Marine Vacant Vacant Potential Contaminants of Concern (PCOC): Metals and PAHs in both soil and groundwater Groundwater Usage: Surface Water Drainage: Nearest Surface Water Body: Soil Type: None Overland to Burrard Inlet (south) Burrard Inlet Date(s)of Site Visit: March 6, 2017 Fill and Salish Sediment Group (gravel, sand) Summary of Areas of Potential Environmental Concern (APEC) Address Location from Site Current Occupant(s) / Use(s) Former Occupant(s) / Use(s) APEC (rationale) PCOC(s) On-Site No civic address available Site None None Fill material of unknown origin PHCs, metals, PAHs No civic address available Off-Site 101 Bridge Road Immediately adjacent to the west No civic address available Site None None Lions Gate Bridge Metals Immediately adjacent to the east Lions Gate Waste Water Treatment Plant Pacific Environmental Centre (PEC) Lions Gate Waste Water Treatment Plant Indian Reserve No. 5 This property is an active sewage treatment facility built on imported fill of unknown origin and has historically experienced spills and releases to the environment and stored PCBs on-site A known contaminated property, crossgradient of the Site and directly downgradient to other APECs PHCs, VPH, LEPH/HEPH, PAHs, VOCs, metals, PCBs, phenols, sulphide Building materials containing asbestos, lead paint, ozonedepleting substances PAHs, metals, VOCs, sulphide

4 Page 3 April 12, 2017 CN Railway 200m north (upgradient) 118 Bridge Road 250m north (upgradient) 120 Bridge Road 250m north (upgradient) No civic address available Tomahawk Avenue and Welch Street No civic address available 275m northwest (upgradient) 400m north (upgradient) Various locations upgradient from Site Railway corridor Railway corridor Railway corridor has been present since the early 20 th Capilano Highway Services, Curtis Paving, Dalton Trucking Mainroad Contracting Capilano Highway Services None century Current commercial applications involving heavy machinery storage and possible vehicle repair. Current commercial operations specializing in road maintenance and construction services. Vacant Gravel pit Area to the west of APEC 6 used to operate as a gravel pit. Residential Residential Known contaminated site near residential area; possibly a hydrocarbon release. Indian Reserve No. 5 Indian Reserve No. 5 Various areas of historical dumping and debris. PHCs, PAHs, metals, VOCs PHCs, VPH, LEPH/HEPH, PAHs, metals, VOCs PHCs, VPH, LEPH/HEPH, PAHs, metals, VOCs PAHs, metals PHCs, VPH, LEPH/HEPH, PAHs PHCs, PAHs, metals, VOCs

5 Page i April 12, 2017 Table of Contents 1. Introduction Scope of Work Previous Assessments Pottinger Gaherty ESA Pottinger Gaherty Stage 1 and 2 PSI Golder Site Investigation, NSWRC Golder Conveyance Route Stage 1 Investigation Golder Conveyance Route Stage 2 Investigation AECOM Limited Soil and Groundwater Investigation Historical Information Site Description Records Review Aerial Photographs Historical Land Title Fire Insurance Maps City Directories Ecolog ERIS BC Contaminated Sites Registry and Legal Instrument Mapping BC Site Registry Company Records Surficial Geology Site Topography, Hydrogeology and Hydrology Site Visit and Interviews Facility and Process Description Fuel Storage Tanks Hazardous Material Storage Maintenance Activities Sandblasting Oil/water Separators, Storm and Floor Drains, Outfalls Air Emissions Controlled Substances Interviews Adjacent Land Use Summary of Findings On-Site Off-Site Conclusions and Recommendations References Appendix A Historical Reports Sent as Volume 2 separate from this report Appendix B Photographic Log... 23

6 Page ii April 12, 2017 Appendix C City Directory Appendix D Ecolog ERIS Appendix E Aerial Photos Appendix F Site Registry Search Appendix G imapbc Water Well Appendix H West Van Zoning Map List of Tables (In Report) Table A. Property Details for 101 Bridge Road, West Vancouver (Site)... 5 Table B. Summary of Records Reviewed... 6 Table C. Aerial Photograph Summary... 6 Table D. West Vancouver Property Information Summary... 9 Table E. Ecolog ERIS Listing 101 Bridge Road, West Vancouver, BC (LGSWWTP, immediately adjacent to the west)... 9 Table F. Ecolog ERIS Listing Vancouver Public Aquarium (approximately 80m to the east) Table G. Ecolog ERIS Listing Burrard Inlet, Lions Gate Bridge (approximately 190m southsoutheast) Table H. Ecolog ERIS Listing Indian Reserve No. 5 South End of Bridge Road (approximately 300m north) Table I. Ecolog ERIS Listing Capilano Highway Services Company, 118 Bridge Rd, West Vancouver (approximately 250m north) Table J. imapbc Summary Table K. BC Site Registry Search Summary Table L. Adjacent Land Use Table M. Summary of On-Site APECs Table N. Summary of Off-Site APECs Table O. Summary of APECs and PCOCs List of Tables (Back of Report) Table 1: Summary of Analytical Results for Metals in Soil Table 2: Summary of Analytical Results for PAH and EPH in Soil Table 3: Summary of Analytical Results for VOC in Soil Table 4: Summary of Analytical results for Volatile PHC in Soil Table 5: Summary of Analytical Results for Inorganics in Groundwater Table 6: Summary of Analytical Results for Organic Parameters in Groundwater List of Figures Figure 1 Site Location Figure 2 Site Plan

7 Page iii April 12, 2017 Figure 3 On-Site Areas of Potential Environmental Concern Figure 4 Off-Site Areas of Potential Environmental Concern List of Historical Reports in Appendix A (Sent as Volume 2 due to size- separate from this report) Appendix A1 - Pottinger Gaherty Environmental Consultants Ltd., Environmental Site Assessment Capilano #5 Squamish Nation Reserve, October 2002 Appendix A2 - Pottinger Gaherty Environmental Consultants Ltd., Stage 1 and Stage 2 Preliminary Site Investigation Lions Gate Wastewater Treatment Plant, 101 Bridge Road, West Vancouver, BC, March 28, 2013 Appendix A3 - Golder Associates Ltd., Lions Gate Wastewater Treatment Plant Detailed Site Investigation, only figures provided for review, May 27, 2015 Appendix A4 - Golder Associates Ltd., Stage 1 Preliminary Site investigation Lions Gate Secondary Wastewater Treatment Plant Sewer Conveyance Route, North and West Vancouver, BC, September 9, 2015 Appendix A5 - Golder Associates Ltd., Stage 2 Preliminary Site Investigation Lions Gate Secondary Wastewater Treatment Plant Sewer Conveyance Route, North and West Vancouver, BC, September 9, 2015

8 Page 1 1. Introduction AECOM Canada Limited (AECOM) was retained by Metro Vancouver to conduct a Phase I Environmental Site Assessment (ESA) for one property located within West Vancouver, British Columbia (the Site) within the jurisdiction of the Port of Vancouver. The property does not have a known address; however, the closest identified property is 101 Bridge Road in West Vancouver, British Columbia. A general location map is provided in Figure 1. The objective of the Phase I ESA was to identify areas of actual or potential environmental concern and associated potential contaminants of concern which may have resulted from past or current operations at the Site and/or surrounding properties. 2. Scope of Work The assessment was conducted in accordance with the Canadian Standards Association (CSA) Z Phase I ESA Standard (Reaffirmed 2012). The scope of work for the Phase I ESA included the review of the following documents: Aerial photographs Property use records o Fire insurance maps (where available) o City directories (where available) o Ecolog ERIS search report o BC Site Registry Title search Prior environmental reports Company records Geological and geotechnical reports Regulatory information Site reconnaissance A Phase I ESA does not include sampling or testing of air, soil, groundwater, surface water or building materials. However, in this particular instance, a series of boreholes were advanced in the vicinity of the Site and are discussed in Section 3.6. The assessment of the Site for the potential presence of hazardous building materials was based on the age of a building and its components, if present, and a non-intrusive visual review of the Site. For this Phase I ESA, no enhancements to the CSA standard were made. A Phase I ESA does not constitute a hazardous materials survey or Designated Substances Survey. This assessment did not include a review or audit of operational environmental compliance issues at the Site. 3. Previous Assessments No Phase 1 or Stage 1 ESAs have been previously completed for the Site; however, a limited intrusive site investigation was completed by AECOM at the Site in Various environmental investigations, including Stage 1 and Stage 2 site investigations have been completed at properties and sites in the

9 Page 2 immediate vicinity. The following reports were reviewed as part of this Limited Baseline Study/Phase 1 ESA: Pottinger Gaherty Environmental Consultants Ltd., Environmental Site Assessment Capilano #5 Squamish Nation Reserve, October 2002 Pottinger Gaherty Environmental Consultants Ltd., Stage 1 and Stage 2 Preliminary Site Investigation Lions Gate Wastewater Treatment Plant, 101 Bridge Road, West Vancouver, BC, March 28, 2013 Golder Associates Ltd., Lions Gate Wastewater Treatment Plant Detailed Site Investigation, only figures provided for review, May 27, 2015 Golder Associates Ltd., Stage 1 Preliminary Site investigation Lions Gate Secondary Wastewater Treatment Plant Sewer Conveyance Route, North and West Vancouver, BC, September 9, 2015 Golder Associates Ltd., Stage 2 Preliminary Site Investigation Lions Gate Secondary Wastewater Treatment Plant Sewer Conveyance Route, North and West Vancouver, BC, September 9, 2015 Copies of these reports are attached in Appendix A and summaries of the findings are below. 3.1 Pottinger Gaherty ESA 2002 In 2002, Pottinger Gaherty (PG) conducted a Phase 1 ESA for Indian Reserve No.5 on behalf of the Squamish Nation. PG assessed the entire Reserve, which is made up of a mixture of undeveloped, residential, parkland, commercial and industrial lands uses and is located immediately north of the Site. PG identified the following on-site areas of potential environmental concern (APECs): Historical refuse dumping (multiple locations)* Abandoned vehicles Imported backfill material of unknown origin* Capilano top soil Car wash facility Par-three golf course LGSWWTP Lions Gate Waste Water Treatment Plant Capilano Highway Services yard and gravel pit* Pacific Environmental Centre (PEC)* Potential regulated building materials Potential heating oil storage tanks Migration of contaminants from off-site sources Due to the size of Indian Reserve No.5, not all APECs identified by PG above are considered applicable to this Limited Baseline Study/Phase 1 ESA investigation and report. Items marked with an asterisk ( * ) were considered relevant. The only off-site APEC identified by PG considered relevant to this investigation is the CN railway. 3.2 Pottinger Gaherty Stage 1 and 2 PSI 2013 In 2013, PG conducted a Stage 1 and 2 Preliminary Site Investigation, as well as a hazardous materials assessment for the Lions Gate Waste Water Treatment Plant (LGSWWTP). During the Stage 1 work, PG identified the following on- and off-site APECs for the LGSWWTP: Backfill material of unknown origin

10 Page 3 Biosolids in landscaped areas Fuelling and Waste-oil Transfer Area Diesel UST and distribution lines; waste-oil UST Leakage from settling tanks Sediments of unknown quality Regulated building materials Capilano Highway Services Yard Pacific Environmental Centre (PEC) CN railway Mainroad property Lions Gate Bridge All of these APECs were considered applicable to the Site. Following the Stage 1 work, PG completed a Stage 2 investigation at the LGSWWTP which included advancing 17 boreholes, 10 of which were completed as groundwater monitoring wells, and installing six soil-vapour points. PG collected soil, groundwater, soil-vapour and sediment samples and compared the analyses to the provincial BC Contaminated Sites Regulation (CSR) Stage 9 standards and the federal Canadian Council of Ministers of the Environment (CCME) guidelines. Potential contaminants of concern (PCOCs) that were analyzed for include: petroleum hydrocarbons (PHC); light/heavy extractable petroleum hydrocarbons (LEPH/HEPH); poly aromatic hydrocarbons (PAH); volatile petroleum hydrocarbons (VPH); volatile organic compounds (VOC); metals; phenols; sulphide and PCBs. Soil exceedances for metals (chromium, copper and tin) compared to both CSR and CCME residential standards/guidelines were encountered on the LGSWWTP property, as well as soil exceedances for ph, lead, zinc and hydrocarbons when compared to CCME residential guidelines. Groundwater exceedances for metals cadmium, copper and zinc (compared to CCME residential guidelines) were encountered on the LGSWWTP property, as well as exceedances for phenols when compared to CSR standards. In addition, the hazardous materials assessment showed the presence of asbestos, lead paint and ozonedepleting substances existed in some building materials of the LGSWWTP. 3.3 Golder Site Investigation, NSWRC 2015 AECOM has reviewed soil and groundwater figures prepared by Golder Associates Ltd. (Golder) from a detailed site investigation report (DSI). At the time of writing, this DSI report has not been finalized. The figures show soil samples collected from the southern portion of the LGSWWTP site and groundwater samples collected all over the LGSWWTP site, as well as some groundwater samples collected to the north and east of the LGSWWTP site. Results show that exceedances for metals exist in both the soil (copper, lead and zinc) and groundwater (cadmium, copper and zinc) when compared to both CSR Stage 9 residential standards and CCME residential guidelines. Additionally, hydrocarbon contamination exists above CCME industrial guidelines in the soil and phenol contamination exists in the groundwater above CSR Stage 9 standards, both on the LGSWWTP site. Groundwater monitoring wells east of the LGSWWTP site could potentially have been installed on the Site and analytical results from these wells show metals contamination (cadmium, copper and zinc) above the Federal Drinking Water guideline.

11 Page Golder Conveyance Route Stage 1 Investigation 2015 In 2015, Golder conducted a Stage 1 investigation to assess environmental concerns surrounding the proposed preliminary conveyance route for a new waste water pipeline. The proposed conveyance route starts at the LGSWWTP, and then continues east, roughly following the CN railway before terminating in the District of North Vancouver near the corner of 1 st West and Philip Avenue. Due to the length of the preliminary conveyance route (approx. 2.3km) and the proposed location of the route, not all APECs identified by Golder are relevant to the Site and this report. The relevant APECs identified by Golder include: CN railway corridor Scattered debris and dumping along conveyance route Capilano Highway Services yard Lions Gate Waste Water Treatment Plant Lions Gate Bridge Pacific Environmental Centre (PEC) Fill material of unknown origin Gravel pit and quarry activities 3.5 Golder Conveyance Route Stage 2 Investigation 2015 In 2015, Golder conducted a Stage 2 site investigation in order to assess the APECs outlined in Golder s 2015 Stage 1, described above. Due to the length and area covered by the preliminary conveyance route, not all investigation locations are relevant to the Site or this report. Eight of the boreholes and test pits (four outfitted as groundwater monitoring wells) advanced by Golder were in areas that may be considered relevant to the Site. Within these locations, soil samples contained concentrations of metals (copper) exceeding CCME residential guidelines. Groundwater samples contained concentrations of metals (aluminum, copper, manganese, selenium and zinc) exceeding CCME guidelines. It should be noted that any comparisons in this report to CSR standards were to the Stage 9 standards. 3.6 AECOM Limited Soil and Groundwater Investigation AECOM Canada Limited (AECOM) was retained by Metro Vancouver to conduct a limited soil and groundwater sampling program on the Site. The objective of this sampling program was to assess current soil and groundwater conditions on the Site. The field work was completed between February 20 and March 7, A total of five boreholes were advanced; two on the Site, and the other three north of Site, but east of the LGSWWTP and under the Lions Gate Bridge. It should be noted that borehole locations were determined by Golder for geotechnical purposes and not specifically for an environmental assessment. All five boreholes were outfitted with groundwater monitoring wells. Locations of the boreholes are shown on Figure 2. AECOM collected a total of 17 unique soil samples and five unique groundwater samples. Soil and groundwater samples were analyzed for PHCs, VPHs, LEPH/HEPH, PAHs, VOCs and metals. Results were compared against applicable CSR Stage 10 standards and CCME guidelines and are tabulated in Tables 1 through 6. Soil sample results showed exceedances for metals and PAHs. Metal parameters in soil that exceeded CSR standards (both residential and industrial pathways) or CCME guidelines (both residential and industrial pathways) include chloride, copper, sodium, vanadium and zinc and occurred in every borehole

12 Page 5 location. Metals contamination was generally found throughout all depths of the samples. PAH parameters in soil exceeded only CCME guidelines for residential and industrial pathways and include naphthalene and phenanthrene. PAH contamination was generally found in the shallow (<2m) soils. Groundwater sample results showed exceedances for metals. Metals parameters in groundwater samples that exceeded the CSR Stage 10 standards included boron, cobalt, chloride and sodium. Metals parameters in groundwater samples that exceeded the CCME guidelines included cadmium, copper, manganese and zinc. 4. Historical Information 4.1 Site Description The Site is currently owned by the Port of Vancouver. The Lions Gate Bridge travels directly over the Site, but at ground surface, the Site is vacant. Prior to the completion of the Lions Gate Bridge in 1938, the Site appears to have been undeveloped. Details of the site are summarized in Table A. Table A. Property Details for 101 Bridge Road, West Vancouver (Site) Civic Address Legal Address Buildings PID Centre of Site (accurate to ± 0.5 second) No known civic address, closest civic address is: Lions Gate Waste Water Treatment Plant (LGSWWTP), located at 101 Bridge Road in West Vancouver, British Columbia No known legal address Adjacent parcel (north): District Lot 5797 PARCELS A & B, Folio: , LTO Number: L, Property No: None No known PID Adjacent parcel (north): Latitude: 49 degrees 19 minutes 5.8 seconds N Longitude: 123 degrees 8 minutes 9.4 seconds W A Site location plan is attached as Figure Records Review The applicable search distance for the records review includes the Site, properties contiguous or immediately adjacent to the Site and other neighbouring properties expected to have been a source of contamination on Site. Information sources obtained and reviewed as part of the records are listed in the following Table B. In addition, available public environmental databases and records were searched to determine if the Site, adjacent properties, or neighbouring properties are listed. The databases and search results are presented in Sections through

13 Page 6 Table B. Summary of Records Reviewed Source Aerial Photographs City Directories Fire Insurance Plans (FIPs) Environmental Databases Information/Contact 1926, 1940, 1949, 1954, 1963, 1969, 1974, 1980, 1987, 1992, 1996, 2002, and 2009 (UBC Geographic Information Centre) City directories for the years 1964 through 1999, (Ecolog ERIS) No Fire Insurance Plans available for the Site BC Online Site Registry, Ecolog ERIS, imapbc Topographic Maps West Vancouver Zoning Map Surficial Geology Maps Map 1486A Surficial Geology, Vancouver, British Columbia: Geological Survey of Canada 1976 Previous Environmental Discussed in Section 3.0 Reports Water Well Records BC Water Well Resource Atlas Title Search No title search completed for the Site Aerial Photographs An aerial photograph review was conducted via the UBC Geographic Information Centre and a total of thirteen historical photo sets (1926, 1940, 1949, 1954, 1963, 1969, 1974, 1980, 1987, 1992, 1996, 2002, and 2009) covering the Site area and adjacent properties were reviewed. An overview of the information retrieved from the photos is provided in Table C below. There were no further more recent air photos available at the time of our assessment. Copies of the aerial photos are presented in Appendix E. Table C. Aerial Photograph Summary Year Site Adjacent Property North East South West 1926 Appears vacant and undeveloped. Coastline appears to be in natural state. Generally undeveloped, however, the railway has been developed. Vacant shoreline. Burrard Inlet Vacant shoreline and the Capilano River Site appears vacant. Lions Gate Bridge is present overtop of Site. Some backfilling of shoreline present Site appears vacant. Lions Gate Bridge is present overtop of Site. Significant backfilling of shoreline present Site appears vacant. Lions Gate Bridge is present overtop of Site. Significant backfilling of shoreline present. Lions Gate Bridge continues to the north, but surrounding land appears undeveloped except for railway. Lions Gate Bridge continues to the north, but surrounding land appears undeveloped except for railway. Lions Gate Bridge continues to the north, but surrounding land appears undeveloped except for railway. Vacant shoreline. Burrard Inlet Vacant shoreline with evidence of backfilling, Capilano River further west. Vacant shoreline with evidence of backfilling. Vacant shoreline with evidence of backfilling. Burrard Inlet Burrard Inlet Vacant shoreline with evidence of backfilling. Capilano River appears to have been diverted to discharge further to the west. Significant residential development further to the west. Vacant shoreline with evidence of backfilling, Capilano River further west. Significant residential development in West Vancouver Site appears vacant. Lions Lions Gate Bridge Vacant shoreline Burrard Inlet Lions Gate Waste Water

14 Page 7 Gate Bridge is present overtop of Site. Shoreline backfill has been removed Site appears vacant. Lions Gate Bridge is present overtop of Site. No significant changes to shoreline Site appears vacant. Lions Gate Bridge is present overtop of Site. No significant changes to shoreline Site appears to have several storage containers present. Lions Gate Bridge is present overtop of Site. No significant changes to shoreline Site appears vacant. Lions Gate Bridge is present overtop of Site. No significant changes to shoreline Site appears vacant. Lions Gate Bridge is present overtop of Site. No significant changes to shoreline Site appears vacant. Lions Gate Bridge is present overtop of Site. No changes to shoreline. continues to the north. Clearing of vegetation immediately north of railway line; possible commercial or quarry activity (west side of bridge). Further vegetation clearing at end of Lions Gate Bridge. Lions Gate Bridge continues to the north. Commercial activities immediately north of railway. Residential (trailer park) community north of commercial property (west side of bridge). Vegetation clearing and possible quarry activities at end of Lion Gate Bridge (east side of bridge). Lions Gate Bridge continues to the north. No significant changes to commercial or residential developments north of railway line. Lions Gate Bridge continues to the north. No significant changes to commercial or residential developments north of railway line. continues immediately east of the Site. Railway line expansion occurred to accommodate more lines. Vegetation clearing and commercial development further to the east. Vacant shoreline with minimal alterations to the backfill. Commercial (port) activities further east have expanded. Vacant shoreline immediately east of Site. Further development of port area. Vacant shoreline immediately east of Site. Minimal change to port area. Lions Gate Bridge Vacant shoreline continues to the north. No immediately east of significant changes to Site. Further existing commercial or development of port residential developments area. north of railway line on west side of bridge. Possible quarry activity immediately north of railway and on east side of Capilano River. Vegetation clearing and residential development occurring on Squamish Nation land east of bridge as well as possible quarry activity. Lions Gate Bridge continues to the north. No significant changes to commercial, quarry or residential developments north of railway line. Lions Gate Bridge continues to the north. No significant changes to commercial, quarry or residential developments north of railway line. Vacant shoreline immediately east of Site. No change to shoreline or port area. Vacant shoreline immediately east of Site. No change to shoreline or port area. Burrard Inlet Burrard Inlet Burrard Inlet Burrard Inlet Burrard Inlet Burrard Inlet Treatment Plant (LGSWWTP) has been built. Shoreline has been altered (reduced) and Capilano River resembles historical discharge location. LGSWWTP. Minimal change to shoreline. LGSWWTP. Minimal change to shoreline. LGSWWTP. Some change to shoreline to remove small bay and have a straight shoreline. Capilano River discharge remains the same. LGSWWTP. Minimal change to shoreline. LGSWWTP. No change to shoreline. LGSWWTP. No change to shoreline.

15 Page Site appears vacant. Lions Gate Bridge is present overtop of Site. No changes to shoreline Site appears vacant. Lions Gate Bridge is present overtop of Site. No changes to shoreline. Lions Gate Bridge continues to the north. No significant changes to commercial, quarry or residential developments north of railway line, however, additional vegetation clearing occurred east of bridge on Squamish Nation land. Lions Gate Bridge continues to the north. No significant changes to commercial or residential developments north of railway line. Vacant shoreline immediately east of Site. No change to shoreline or port area. Vacant shoreline immediately east of Site. No change to shoreline or port area. Burrard Inlet Burrard Inlet LGSWWTP. No change to shoreline. LGSWWTP. No change to shoreline. Between 1926 and 2009, significant changes occurred at the Site and surrounding areas. The construction of the Lions Gate Bridge, along with backfilling and alterations to the shoreline represent APECs for the Site. Activities occurring up-gradient from the Site include the construction and operation of the Lions Gate Waste Water Treatment Plant, commercial developments, port and backfilling activities and possible quarry-related activities on Squamish Nation land, which represent off-site APECs for the Site Historical Land Title A review of the District of West Vancouver GIS Website, the District of West Vancouver zoning map, as well as land parcel figures obtained from the PGL March 2013 report (attached in Appendix H), indicate that the Site is in an area not recognized as a legal land parcel, thus no address, legal description or PID exists for the Site. As such, no formal land title search was conducted. It is AECOM s understanding that this area is Crown land and is administered by the Port of Vancouver Fire Insurance Maps No fire insurance maps exist for the Site City Directories The City Directories were requested through Ecolog ERIS (ERIS) and directories searched include 1964, 1969, 1974, 1979, 1984, 1989, 1994 and No listings were available for Bridge Road, Welch Street or the Lion s Gate Bridge. The ERIS summary can be seen in Appendix D. A search of West Vancouver Property Information Online was completed on February 28, 2017 (search results provided in Appendix C). A summary of the search results can be seen below in Table D.

16 Page 9 Table D. West Vancouver Property Information Summary Civic Address Distance From Site Described Land Use Occupant 101 Bridge Road Immediately adjacent to Site. Works Yard Lions Gate Waste Water Treatment Plant 111 Bridge Road Approximately 250m north Civic, Institute & Rec. Vacant VACANT 118 Bridge Road Approximately 250m north N/A Capilano Highway Services, Curtis Paving, Dalton Trucking 120 Bridge Road Approximately 250m north Civic, Institute & Rec. - VACANT Mainroad Contracting Activities carried out at the Lions Gate Waste Water Treatment Plant (immediately west of the Site) and at 118 and 120 Bridge Road (approximately 250m north of the Site) are environmentally significant and should be considered areas of potential environmental concern (APECs) Ecolog ERIS A site-specific report was ordered from EcoLog ERIS Ltd., an environmental database and information services company, which provides environmental and historical information compiled from government and private source records. The report includes a search of over fifty databases for the Site and other properties within a 500 m radius. The subject Site did not have any listings identified by Ecolog ERIS. The EcoLog ERIS report is included in Appendix D. A summary of the Ecolog ERIS listings is provided below in Tables E to I. Table E. Ecolog ERIS Listing 101 Bridge Road, West Vancouver, BC (LGSWWTP, immediately adjacent to the west) Database Name (type) Wastewater Discharge Inventory ERIS Historical Searches Environmental Monitoring Locations Waste Generator Summary Findings This listing indicates this property received a discharge permit as part of the municipal sewerage system on February 17, This is consistent with the opening and ongoing operation of the Lions Gate Waste Water Treatment Plant. The permits states the receiving water body is Burrard Inlet and the effluent is sewage. Treatment details include: grit and scum removal; pre-aeration; sedimentation; sludge thickeners; and, dechlorination. Based on this facility being immediately adjacent to the Site, this entry represents an area of potential environmental concern (APEC). This listing indicates two entries for the LGSWWTP. The entries suggest environmental risk reports were completed in 2006 and 2013 for this site, but no further details regarding report content was reported. This entry does not represent an APEC. This listing indicates ambient or background air monitoring occurred in 1993 at the LGSWWTP. This entry does not represent an APEC. This listing indicates the LGSWWTP has had an active waste generator number since January 1995 (BCG03127). A BCG number is required whenever wastes that are considered hazardous are being generated. The database lists polychlorinated biphenyls (PCBs) as the waste. Based on the facility being immediately adjacent to the Site, this entry represents a source of potential environmental concern.

17 Page 10 Database Name (type) National Pollutant Release Inventory Inventory of PCB Storage Sites Authorization Management System (formerly WASTE) Non-Compliance Reports National Environmental Emergencies System (NEES) Findings The search returned 22 entries for the LGSWWTP in the National Pollutant Release Inventory, which collects data regarding releases to air, water, land or waste transfers. All listed releases occurred between 1993 and Substances listed in the releases include: chlorine, ammonia, cadmium, lead, mercury, phosphorus, nitrate ions, nonylphenol and carbon monoxide. All releases were made to either water or air. These activities represent an APEC. This listing indicates the LGSWWTP has been an active storage facility for PCBs, generated during multiple events, since This activity represents an APEC. This entry indicates the LGSWWTP is registered as a municipal waste water treatment plant and has had an operational certificate since February 17, It states the waste type being generated is effluent. This activity represents an APEC. There were four entries for non-compliance between 1994 and All four reports stated that the LGSWWTP exceeded their effluent permit limit over a set period of time. This activity represents an APEC. There were four entries for the NEES between 1987 and The NEES is a reporting system for spills of hazardous substances. The entries indicate that three of spills involved sewage as the contaminant and the four spill involved green fluorescent dye. These activities represent an APEC. Table F. Ecolog ERIS Listing Vancouver Public Aquarium (approximately 80m to the east) Database Name (type) Wastewater Discharge Inventory Findings This listing indicates the Vancouver Public Aquarium had a temporary discharge consisting of an unknown effluent in No further details regarding the discharge are provided. This activity does not represent an APEC. Table G. Ecolog ERIS Listing Burrard Inlet, Lions Gate Bridge (approximately 190m southsoutheast) Database Name (type) Environmental Monitoring Locations Findings This listing indicates marine monitoring occurred in 1984 in the Burrard Inlet, underneath the Lions Gate Bridge. This entry does not represent an APEC. Table H. Ecolog ERIS Listing Indian Reserve No. 5 South End of Bridge Road (approximately 300m north) Site Registry Database Name (type) Findings The entry shows the Site ID is 15968, but there are no additional details. The detailed report from the BC Site Registry shows that this site received a Notification of Likely or Actual Substance Migration from a Neighbouring Site. The neighbouring site (Site ID: 12383) is discussed further in Section This activity represents an APEC.

18 Page 11 Table I. Ecolog ERIS Listing Capilano Highway Services Company, 118 Bridge Rd, West Vancouver (approximately 250m north) Database Name (type) Authorization Management System (formerly WASTE) Findings This entry indicates the Capilano Highway Services Company has had a waste permit authorization since December No additional details or type of waste is provided. Activities at this property represent an APEC BC Contaminated Sites Registry and Legal Instrument Mapping AECOM used the imapbc mapping tool to access the Environmental Remediation Sites database published by the Ministry of Environment (MOE) in March According to imapbc, there are three potentially contaminated properties within a 500m radius of the Site; the three Sites are listed in Table J. These properties will be further discussed in Section Table J. imapbc Summary Proximity to Site Address (Description) of Site Environmental Remediation Site ID Site ID Latitude and Longitude Approximately 300m north Indian Reserve No. 5 South End of Bridge Road " 11.10' 123 8" 5.51' Approximately 350m northeast Approximately 500m east Tomahawk Avenue East of Lions Gate Bridge " 7.40' 123 7" 55.60' 49 18" 58.06' 123 7" 49.00' It should be noted that the intersection of Tomahawk Avenue and Welch Street is located approximately 400m north of the Site and it is assumed that the coordinates provided in imapbc are incorrect. Site 4802 is assumed to be associated with the Pacific Environmental Centre (PEC). AECOM also accessed the BC CSAP Database in March 2017 and did not identify any properties with an MOE issued instrument within a 500m radius of the Site BC Site Registry An independent BC Site Registry search was conducted to locate any records entered since October 2012, which is the date up to which Ecolog ERIS accounts for. A detailed report was only obtained for properties that pose an environmental concern for the Site and were not accounted for in Ecolog ERIS search. Three registered sites were identified within 1km 2 of the Site. Two sites (Site ID: 4802 and 12383) were not identified by Ecolog Eris. A detailed report was obtained for both sites. A summary of the result is provided in Table K. Copies of the searches and detailed report are provided in Appendix F.

19 Page 12 Table K. BC Site Registry Search Summary Site ID Address (Description) Location Relative to the Site APEC? 4802 East of Lions Gate Bridge 500m east Y Tomahawk Avenue (south end) 400m north Y Rationale A meeting between BC Environment and Lands and Environment Canada occurred in The site is listed as a large site with complex contamination, and is assumed to be part of the Pacific Environmental Centre (PEC). This site is considered an APEC due to proximity to the Site and cross -gradient location. Notice of Independent Remediation submitted (July 2010) and Notification about likely or actual substance migration to a neighbouring site submitted (February 2011). The site receiving the substance migration notice was Indian Reserve No. 5 South End of Bridge Road (Site ID: 15968). This site is up-gradient of the Site and is considered an APEC Company Records There are no company records associated with this Site Surficial Geology A review of Map 1486A Surficial Geology, Vancouver, British Columbia: Geological Survey of Canada 1976 indicates that the surficial geology at the Site and surrounding properties consists of lowland and mountain stream deltaic, channel fill and over bank sediments of the Salish Sediments Group. This stratigraphy consists of mountain stream and marine deltaic medium to coarse gravel and minor sand up to 15m thick Site Topography, Hydrogeology and Hydrology The Site has a generally flat topography and is unpaved. The regional groundwater flow direction is expected to be to the south towards the Burrard Inlet, which is located approximately 100 metres (m) directly south of the Site. No surface water bodies or ponds were observed on Site. The Burrard Inlet is tidally influenced and it is expected that groundwater levels and flow direction fluctuate. A search of the BC Water Well Resource Atlas yielded no water wells within a 500m radius of the Site. One water well was identified within 1 kilometre (km) of the Site on the property of the Park Royal Shopping Centre, to the northwest of the Site. This well is a monitoring well and is not used for drinking water purposes. Well details are provided in Appendix G. 5. Site Visit and Interviews The Phase I ESA Site visit was conducted by Monica Danon-Schaffer of AECOM on March 6, The Site visit methodology consisted of traversing the Site and walking portions of the surrounding area. The Site and readily visible and publicly accessible portions of adjoining and neighbouring properties were examined for the presence of APECs. The results of the inspection are discussed below. Photographs of the Site and adjacent properties taken during the inspection are included in Appendix B.

20 Page Facility and Process Description There was no facility or active operations at the Site. The Site has not been previously developed, other than the Lions Gate Bridge, which travels overhead. 5.2 Fuel Storage Tanks No above ground storage tanks (ASTs) were present on Site at the time of the Site visit. No evidence of underground storage tanks (USTs) was observed. 5.3 Hazardous Material Storage There were no hazardous materials present on Site at the time of the Site visit. 5.4 Maintenance Activities There was no evidence of maintenance activities occurring at the Site. It is likely that maintenance activities, such as structural repairs, painting or cleaning, may have occurred on the Lions Gate Bridge. These activities may have occurred over top of the Site. 5.5 Sandblasting There was no evidence of sandblasting activities at the Site; however, it is possible that sandblasting or sanding activities may have occurred on the Lions Gate Bridge overhead. 5.6 Oil/water Separators, Storm and Floor Drains, Outfalls There was no oil/water separators or drainage system noted at the Site. 5.7 Air Emissions There were no activities that would generate air emissions present on Site during the time of the Site visit. 5.8 Controlled Substances There were no unidentified or controlled substances present on Site at the time of the Site visit. 5.9 Interviews There was no interview conducted for the site as it is currently vacant Adjacent Land Use At the time of the Site visit, the following properties were observed to be located adjacent to the Site and are summarized in Table L.

21 Page 14 Table L. Adjacent Land Use Direction Name Address Land Use Approximate Distance North Lions Gate Bridge/Highway 99 (overhead) N/A Not Zoned The bridge/highway continues immediately north of the Site and is bordered by Indian Reserve No. 5 lands on both sides. South Lions Gate Bridge (overhead); Burrard Inlet N/A M1 Marine Zone Immediately adjacent to the south. East West Capilano Indian Reserve No. 5 (Squamish Nation); also known as the Pacific Environmental Centre (PEC) Lions Gate Waste Water Treatment Plant N/A Not Zoned Immediately adjacent to the east 101 Bridge Road Not Zoned Immediately adjacent to the west, located on Indian Reserve No. 5 lands. Activities generally associated with the Lions Gate Bridge and Lions Gate Waste Water Treatment Plant would be considered industrial. The area to the east of the Site is currently undeveloped Squamish Nation land (PEC). Approximately 200 metres (m) north of the Site is the CN Rail Squamish Subdivision railway (Mile 2.6, Bridge Road). North of the railway (approximately 250m north of Site) are commercial enterprises Dalton Trucking (excavating contractor), Curtis Paving (asphalt paving), Capilano Highway Services (road and bridge maintenance), Mainroad Contracting (highway maintenance) and Talaysay Tours (tour operator). These operations all exist on Squamish Nation land, which is currently not zoned. The Lions Gate Bridge, LGSWWTP, the PEC, CN railway and commercial operations (except Talaysay Tours) all represent APECs to the Site. A Site plan including adjacent properties is attached as Figure Summary of Findings 6.1 On-Site Based on the results of previous investigations, the review of historical documentation and the Site inspection, the Site itself represents a source of potential environmental concern. The on-site APECs and associated PCOCs are summarized in Table M below. The on-site APECs are shown on Figure 3.

22 Page 15 Table M. Summary of On-Site APECs Address Location from Site Current Occupant(s) / Use(s) Former Occupant(s) / Use(s) APEC # APEC (rationale) PCOC(s) On-Site No civic address available Site None None 1 Fill material of unknown origin PHCs, metals, PAHs 2 Lions Gate Bridge Metals 6.2 Off-Site Based on the results of previous investigations, the review of historical documentation and the Site inspection, several properties and locations in the surrounding area represent sources of potential environmental concern. The off-site APECs and associated PCOCs are summarized in Table N and the locations are presented on Figure 4. Table N. Summary of Off-Site APECs Address Location from Site Current Occupant(s) / Use(s) Former Occupant(s) / Use(s) APEC # APEC (rationale) PCOC(s) Off-Site 101 Bridge Road Immediately adjacent to the west Lions Gate Waste Water Treatment Plant Lions Gate Waste Water Treatment Plant 3 This property is an active sewage treatment facility built on imported fill of unknown origin and has historically experienced spills and releases to the environment and stored PCBs on-site PHCs, VPH, LEPH/HEPH, PAHs, VOCs, metals, PCBs, phenols, sulphide Building materials containing asbestos, lead paint, ozonedepleting substances No civic address available Immediately adjacent to the east Pacific Environmental Centre (PEC) Indian Reserve No. 5 4 A known contaminated property, cross-gradient of the Site and directly downgradient to other APECs PAHs, metals, VOCs, sulphide CN Railway 200m north (upgradient) Railway corridor Railway corridor 5 Railway corridor has been present since the early 20 th century PHCs, PAHs, metals, VOCs 118 Bridge Road 250m north (upgradient) 120 Bridge Road 250m north (upgradient) No civic address available 275m northwest Capilano Highway Services, Curtis Paving, Dalton Trucking Mainroad Contracting Capilano Highway Services None 6 Current commercial applications involving heavy machinery storage and possible vehicle repair. 7 Current commercial operations specializing in road maintenance and construction services. Vacant Gravel pit 8 Area to the west of APEC 6 used to operate as a gravel pit. PHCs, VPH, LEPH/HEPH, PAHs, metals, VOCs PHCs, VPH, LEPH/HEPH, PAHs, metals, VOCs PAHs, metals

23 Page 16 Address Location from Site Current Occupant(s) / Use(s) Former Occupant(s) / Use(s) APEC # APEC (rationale) PCOC(s) Off-Site (upgradient) Tomahawk Avenue and Welch Street 400m north (upgradient) Residential Residential 9 Known contaminated site near residential area; possibly a hydrocarbon release. PHCs, VPH, LEPH/HEPH, PAHs No civic address available Various locations up-gradient from Site Indian Reserve No. 5 Indian Reserve No Various areas of historical dumping and debris. PHCs, PAHs, metals, VOCs 7. Conclusions and Recommendations AECOM has performed a limited baseline and Phase 1 ESA of the subject property in general accordance with BC CSR methodologies and procedures. AECOM has identified a total of 10 APECs on and off the Site. A summary of the APECs, the corresponding PCOCs and discussion of areas of environmental concern (AEC) is in Table O, below. Table O. Summary of APECs and PCOCs APEC Occupant/Use PCOC(s) AEC? (Y/N) 1 Fill material of unknown origin PHCs, metals, PAHs Yes The Site is considered an AEC due to soil exceedances of sodium and chloride above CSR Stage 10 industrial standards and zinc above CCME residential standards. PAHs (naphthalene and phenanthrene) in soil also exceed CCME industrial standards. Groundwater exceedances exist for cadmium, copper and manganese above CCME guidelines and boron, chloride and sodium above CSR Stage 10 standards. 2 Lions Gate Bridge Metals Yes - The Lions Gate Bridge is considered an AEC due to soil exceedances of copper and zinc above CCME industrial guidelines. Groundwater exceedances exist for cadmium, copper and manganese above CCME guidelines and boron, chloride and sodium above CSR Stage 10 standards. PHCs, VPH, LEPH/HEPH, PAHs, VOCs, metals, PCBs, phenols, sulphide 3 Lions Gate Waste Water Treatment Plant Building materials containing asbestos, lead paint, ozone-depleting substances Yes Investigations completed by PG, Golder and AECOM show significant metals contamination in soil and groundwater (cadmium, copper, chromium, lead, tin, zinc) exceed residential standards for both CSR and

24 Page 17 APEC Occupant/Use PCOC(s) AEC? (Y/N) 4 Pacific Environmental Centre (PEC) 5 Railway corridor 6 Capilano Highway Services, Curtis Paving, Dalton Trucking 7 Mainroad Contracting 8 Vacant (former gravel pit) 9 Residential 10 Indian Reserve No. 5 PAHs, metals, VOCs, sulphide PHCs, PAHs, metals, VOCs PHCs, VPH, LEPH/HEPH, PAHs, metals, VOCs PHCs, VPH, LEPH/HEPH, PAHs, metals, VOCs PAHs, metals PHCs, VPH, LEPH/HEPH, PAHs PHCs, PAHs, metals, VOCs CCME. Metals contamination (cadmium, copper and zinc) above CCME guidelines is also present in groundwater. Due to the proximity to the Site and the on-going operations, the LGSWWTP is considered an AEC. Not applicable to this Baseline Phase I ESA. Yes The railway corridor is considered an AEC for the Site. Soil samples collected by AECOM show metals exceedances of chloride and vanadium above CSR Stage 10 industrial standards; sodium above CSR Stage 10 residential standards; and, copper above CSR Stage 10 industrial standards and CCME industrial guidelines. Groundwater exceedances exist for cadmium, copper, manganese and zinc above CCME guidelines and cobalt, chloride and sodium above CSR Stage 10 standards. Not applicable to this Baseline Phase I ESA. Not applicable to this Baseline Phase I ESA. Not applicable to this Baseline Phase I ESA. Not applicable to this Baseline Phase I ESA. Not applicable to this Baseline Phase I ESA. AECOM s limited soil and groundwater investigation of the Site in 2017 provide a baseline of analytical data for the environmental condition of the Site. Analytical results of both soil and groundwater indicate contamination is present on the Site when compared to the CCME guidelines. The Baseline Phase I ESA also compared the soil and groundwater results to CSR Standards in the event that soil is removed from the site to an off-site licensed facility. Additional details regarding the soil, with respect to the construction and development of the proposed Conveyance for the LGSWWTP can be found in the Soil Management Plan (AECOM, 2017). AECOM recommends the DB perform a Phase II Environmental Site Assessment (i.e. Detailed Site Investigation) or if required by the Port of Vancouver, to further characterize or delineate the known contamination, however, due to the unknown origins of the fill present (APEC 1), it is assumed that metals and PAH contamination is widespread throughout the area. Costing for any additional investigation work can be provided as required.