Limited Phase 1 ESA and Phase 2 ESA, Eastern Portion of New
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Limited Phase 1 Environmental Site Assessment and Phase 2 Environmental Site Assessment Eastern Portion of New Brighton Park, Vancouver, BC Prepared for: Port Metro Vancouver, Habitat Enhancement Program 100 The Pointe – 999 Canada Place Vancouver, BC V6C3T4 Prepared by: Hemmera Envirochem Inc. 18th Floor, 4730 Kingsway Burnaby, BC V5H 0C6 File: 302-035.04 August 20, 2015 PMV – Habitat Enhancement Program Hemmera Limited Phase 1 and 2 ESA – New Brighton Park - i - August 2015 EXECUTIVE SUMMARY Hemmera Envirochem Inc. (Hemmera) was retained by Port Metro Vancouver (PMV) Habitat Enhancement Program (HEP) to conduct a limited Phase 1 Environmental Site Assessment (ESA) and a Phase 2 ESA for the eastern portion of New Brighton Park, in Vancouver, BC (the ‘Site’). Based on information provided by PMV, an opportunity exists to create fish and wildlife habitat by creating a wetland habitat feature on the east side of the New Brighton Park (the ‘Project’). The majority of the current Project area falls within a single parcel. The portion of the park for which the Project is planned for is leased to the City of Vancouver by PMV, under lease reference 1-01-00444. A Stage 1 Preliminary Site Investigation (PSI) was completed at the Site by Keystone Environmental Ltd (Keystone) in May 1997. Based on those findings, a subsequent Stage 2 PSI was completed by Keystone in July 1997. Both phases of work were completed for the City of Vancouver. The objectives of this limited Phase 1 ESA was to update the environmental conditions at the Site since the previous PSIs were completed in May/July 1997, and identify areas of potential environmental concern (APECs) and potential contaminants of concern (PCOCs) associated with present and/or historical on and off-Site activities that may have impacted environmental media at the Site. Also, the work is being completed to document soil and groundwater quality in advance of potential construction works planned for the Project. Information reviewed indicates that the original shoreline was located approximately 150 metres (m) south of its present location. Fill material used to reclaim this intertidal zone is of unknown quality/origin. As such, one on-Site APEC has been identified through the Phase 1 ESA and is discussed in Table ES-1 below. Table ES-1 Summary of APEC and PCOCs APEC Source Comments PCOCs Media There has been extensive intertidal zone infilling of the north end of the Petroleum Fill Material of park, beginning in the early-1960s. Hydrocarbons (VOCs Soil and 1 unknown incl. BTEX/VPH, EPH, Information reviewed indicates that the groundwater quality/origin original shoreline was located PAHs, LEPH, HEPH), approximately 150 metres south of its metals present location. Notes: APEC = Area of Potential Environmental Concern PCOCs = Potential Contaminants of Concern VOCs = Volatile Organic Compounds BTEX = Benzene, Toluene, Ethylbenzene, and Xylenes VPH = Volatile Petroleum Hydrocarbons EPH = Extractable Petroleum Hydrocarbons LEPH/HEPH = Light/Heavy Extractable Petroleum Hydrocarbons PAH = Polycyclic Aromatic Hydrocarbons PMV – Habitat Enhancement Program Hemmera Limited Phase 1 and 2 ESA – New Brighton Park - ii - August 2015 Based on the Phase 1 ESA, Hemmera conducted a Phase 2 ESA to assess soil and groundwater in the vicinity of the APEC and proposed habitat enhancement project. A total of eleven boreholes were advanced at the Site, with four completed as monitoring wells. Soil and groundwater samples were submitted for analysis of PCOCs listed in Table ES-1. The soil analytical data was evaluated using the CCME Canadian Soil Quality Guidelines for the Protection of Environmental and Human Health, Park Land Use (PL). Groundwater data was evaluated using the CCME Canadian Water Quality Guidelines (CWQG) for the Protection of Aquatic Life (marine), including a ten-fold dilution. Soil and groundwater data collected at the Site was also evaluated using the Contaminated Sites Regulation (CSR) Park Land (PL) use standards to CSR Aquatic Life (AW marine) standards, respectively, for comparison purposes only. The following is a summary of the Phase 2 ESA investigation results. Table ES-2 Summary Phase 1 and 2 ESA Results APEC Description Results COCs Fill Material of Soil > CSR PL, CCME RL/PL Soil: copper, lead, zinc 1 unknown Groundwater > BC CSR AW, Groundwater: LEPHw, naphthalene, quality/origin CCME MAL(x10) phenanthrene, and pyrene Notes: APEC = Area of Potential Environmental Concern COCs = Contaminants of Concern DW = Drinking Water standards/AW = Aquatic Life standards Based on the above results, the Phase 2 ESA identified elevated concentrations of metals in soil exceeding both the Federal guidelines and Provincial standards. In groundwater, elevated concentrations of petroleum hydrocarbons exceeding the applicable Federal guidelines, as well as Provincial standards (used for comparison purposes) within the footprint of the proposed Project, were identified. Additional work is required to fully delineate the contaminated soil and groundwater within the Project area. Furthermore, if excavated soil requires off-site disposal as part of the future/potential construction activities, soils with concentrations exceeding Soil Relocation standards would require disposal at an appropriately licensed landfill facility, or they would require a Contaminated Soil Relocation Agreement (CSRA) if relocated to property under Provincial jurisdiction. PMV – Habitat Enhancement Program Hemmera Limited Phase 1 and 2 ESA – New Brighton Park - iii - August 2015 TABLE OF CONTENTS EXECUTIVE SUMMARY ............................................................................................................................... I 1.0 INTRODUCTION .............................................................................................................................. 1 1.1 HABITAT ENHANCEMENT PROJECT ......................................................................................... 1 1.2 SITE DESCRIPTION AND BACKGROUND ................................................................................... 1 2.0 LIMITED PHASE 1 ENVIRONMENTAL SITE ASSESSMENT ....................................................... 2 2.1 SCOPE OF WORK .................................................................................................................. 2 2.2 LAND TITLE INFORMATION ...................................................................................................... 2 2.3 TOPOGRAPHY AND SURFICIAL GEOLOGY ................................................................................ 3 2.4 SITE HISTORY ....................................................................................................................... 3 2.5 REGULATORY INFORMATION ................................................................................................... 5 2.5.1 BC MOE Site Registry ........................................................................................... 5 2.5.2 Federal Contaminated Site Search ........................................................................ 5 2.5.3 Water Well Search ................................................................................................. 6 2.6 SITE VISIT ............................................................................................................................. 6 2.6.1 Ground Observations ............................................................................................. 6 2.6.2 Building Observations ............................................................................................ 7 2.6.3 Current Surrounding Land Use .............................................................................. 7 2.7 PHASE 1 ESA CONCLUSIONS ................................................................................................. 7 3.0 PHASE 2 ENVIRONMENTAL SITE ASSESSMENT ...................................................................... 8 3.1 SCOPE OF WORK .................................................................................................................. 8 3.2 REGULATORY FRAMEWORK ................................................................................................... 9 3.2.1 Soil ....................................................................................................................... 10 3.2.1.1 Federal Guidelines ............................................................................. 10 3.2.1.2 Provincial Standards .......................................................................... 10 3.2.2 Groundwater ........................................................................................................ 10 3.2.2.1 Federal Standards ............................................................................. 10 3.2.2.2 Provincial Standards .......................................................................... 11 3.3 RESULTS ............................................................................................................................ 11 3.3.1 Soil Stratigraphy and Drilling Observations ......................................................... 11 3.3.2 Groundwater Monitoring ...................................................................................... 12 3.4 ANALYTICAL RESULTS ......................................................................................................... 12 PMV – Habitat Enhancement Program Hemmera Limited Phase 1 and 2 ESA – New Brighton Park - iv - August 2015 3.4.1 Soil Results .........................................................................................................