Phase 1 and Phase 2 Environmental Site Assessments (ESA)

YOUR ENVIRONMENTAL SITE ASSESSMENT (ESA) LEADER

Vertex is a leading expert in environmental site assessments and remediation. We offer a range of services, including Phase1 and Phase 2 Environmental Site Assessments (ESAs). Our skilled team serves British Columbia, Alberta, Saskatchewan, Ontario, and other regions across Canada, as well as select locations in the United States.

Our extensive experience encompasses all aspects of site evaluation and cleanup, including:

• Phase 1 Environmental Site Assessment (Phase 1 ESA)
• Phase 2 Environmental Site Assessment (Phase 2 ESA)
• Site Remediation Action Plans (RAPs)
• Commercial Building and Property Condition Assessments (PCA/BCA)
• Preliminary Site Investigation (B.C.) – Stage 1 and Stage 2
• Detailed Site Investigation (DSI)

Our tailored and timely approach ensures that sites progress smoothly from initial assessment to final closure. Vertex has conducted thousands of Phase 1 & Phase 2 ESAs for diverse clients across the energy, government, waste management, residential, commercial real estate, and industrial sectors.

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• Phase 1 Environmental Site Assessment (Phase 1 ESA)

  A Phase 1 Environmental Site Assessment (ESA)—also referred to as a Phase I ESA, Phase 1 Environmental Assessment, or Environmental Phase 1—is the industry standard for identifying potential environmental risks on a property. At Vertex, we have completed over 15,000 Phase 1 ESAs across Canada, including Alberta, Ontario, British Columbia, and Saskatchewan.

  Our process includes a historical records review, aerial photo analysis, land use evaluation, interviews, and on-site reconnaissance. This non-intrusive evaluation aligns with CSA Z768-01 standards and provincial regulations. We provide detailed documentation, conclusions, and if necessary, recommendations for further investigation, such as a Phase 2 Environmental Site Assessment.

  Whether you’re a developer, lender, or investor, our Phase 1 ESA services in Alberta, Ontario, and beyond deliver fast turnaround, transparent ESA costs, and reports accepted by major financial institutions.

• Phase 2 Environmental Site Assessment (Phase 2 ESA)

  A Phase 2 ESA—also known as a Phase II Environmental Site Assessment or Environmental Phase 2—is conducted when a Phase 1 ESA identifies actual or potential contamination. This intrusive investigation involves soil, groundwater, and vapour sampling to determine contaminant type, concentration, and distribution.

  Vertex has conducted over 3,500 Phase 2 ESAs throughout Canada, including Alberta, Ontario, and Phase 2 ESA projects in Calgary. Our assessments support property transactions, redevelopment, liability management, and regulatory compliance. We investigate contaminants such as hydrocarbons, salts, and metals, and provide clear, actionable reporting for project stakeholders.

  If you’re comparing Phase 1 vs. Phase 2 ESA requirements or evaluating Phase 2 environmental site assessment costs, our team offers competitive pricing and experienced guidance across sectors.

• Site Remediation Action Plans (RAPs)

  When contamination is confirmed during a Phase II ESA or Detailed Site Investigation (DSI), Vertex develops Site Remediation Action Plans (RAPs) that address the site-specific needs and regulatory requirements. Our RAPs are designed to bring contaminated properties back into compliance while supporting redevelopment timelines and financing requirements.

  We prepare and implement RAPs for commercial, industrial, and energy sites, guiding stakeholders through each remediation phase—from risk assessment and technology selection to execution and post-remediation sampling. Our team ensures RAPs meet local and provincial guidelines, providing peace of mind to property owners and developers alike.

• Commercial Building and Property Condition Assessments (PCA/BCA)

  In addition to environmental due diligence, Vertex provides Property Condition Assessments (PCA) and Building Condition Assessments (BCA) to support real estate investment, financing, and acquisition decisions. These assessments offer a snapshot of a building’s condition, including its mechanical systems, envelope, structure, and potential environmental concerns.

  Our PCA/BCA services are often bundled with Phase 1 ESAs to provide a complete overview of property risks and costs. Whether you’re assessing a commercial property in Edmonton, Toronto, or Vancouver, our reports help you negotiate better and plan with confidence.

• Preliminary Site Investigation (B.C.) – Stage 1 and Stage 2

  In British Columbia, Preliminary Site Investigations (PSIs) are required under the Environmental Management Act (EMA). Vertex provides Stage 1 (desktop and historical review) and Stage 2 (intrusive sampling) investigations in accordance with provincial protocols. These stages correspond to Phase 1 and Phase 2 ESAs in other provinces.

  Our environmental team has extensive experience delivering PSIs for commercial, industrial, and municipal properties across the Lower Mainland, including Surrey, Langley, Burnaby, and Vancouver. We help clients meet provincial mandates and move forward with remediation, permitting, or property transactions efficiently.

• Detailed Site Investigation (DSI)

  A Detailed Site Investigation (DSI)—sometimes part of Phase III ESA or following Phase 2 ESA work—offers advanced analysis when contamination is confirmed. Vertex conducts DSIs to quantify contaminant plumes, evaluate exposure pathways, and develop cost-effective cleanup strategies.

  We offer DSI services in Alberta, Ontario, and B.C., with specialized experience in delineating complex hydrocarbon and salt contamination sites. Our team delivers the data needed to support Environmental Phase 3 decisions, regulatory submissions, and stakeholder communication.