Phase 2 Environmental Site Assessments (ESAs)

A Phase 2 Environmental Site Assessment (ESA) is a follow-up investigation conducted when a Phase 1 ESA identifies Recognized Environmental Conditions (RECs) that may indicate the presence of contamination. Phase 2 ESAs involve sampling and laboratory analysis of soil, groundwater, or building materials to confirm the presence and extent of pollutants. These assessments follow ASTM Standard E1903-19 and are critical for determining whether remediation is necessary. Phase 2 ESAs are often required before property transactions can proceed, particularly when contamination could impact health, the environment, or property value..

Phase 2 ESA Considerations

These are key factors to understand before initiating a Phase 2 Environmental Site Assessment

Phase 1 Findings

A Phase 2 ESA is typically conducted when a Phase 1 ESA identifies Recognized Environmental Conditions (RECs) that suggest potential contamination.

Customized Scope

The specific tests and analyses in a Phase 2 ESA are determined by the findings of the Phase 1 ESA. This may include groundwater analysis, installation of monitoring wells, or sampling for substances like mold, asbestos, or lead.

Cost Variability

The cost of a Phase 2 ESA can range from $4,000 to $25,000, depending on site-specific factors such as the types of analyses required, drilling methods, and site accessibility.

Regulatory Compliance

Phase 2 ESAs must adhere to local, state, and federal environmental regulations, which may influence the assessment’s scope and procedures

What’s Included in a Phase 2 ESA

Troxler Environmental’s Phase 2 ESA services encompass the following components

Soil Sampling and Site Characterization

Collection and analysis of soil samples to determine contamination levels and assess potential risks to human health and the environment.​

Soil Testing, Profiling, and Disposal

Evaluation of soil for proper disposal or potential reuse, ensuring compliance with regulatory requirements.

Groundwater Remediation, Sampling, and Plume Migration

Assessment of groundwater contamination, including sampling and modeling of contaminant plumes to understand their extent and movement.​

Well Installation and Monitoring

Installation of monitoring wells to collect groundwater data, which aids in determining groundwater quality, flow direction, and gradient.

Remediation Design and Management

Development and implementation of remediation plans, including obtaining necessary permits and managing the cleanup process from start to finish.

Regulatory Agency Interaction and Site Closure

Coordination with regulatory agencies to ensure compliance and achieve site closure, signifying that the site meets environmental standards.

Brownfield Assessment and Redevelopment

Evaluation and remediation of brownfield sites to facilitate safe redevelopment, including assistance with financing options and regulatory approvals.

Risk Assessment

Analysis of potential health and environmental risks associated with identified contaminants, guiding decision-making for remediation efforts.

Geophysical Surveys

Non-invasive surveys using technologies like ground-penetrating radar (GPR) and magnetic surveys to detect subsurface anomalies such as buried tanks or drums.

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