Phase II Environmental Site Assessment

What is a Phase II Environmental Site Assessment?

A Phase II Environmental Site Assessment (ESA) is a crucial step in the environmental due diligence process, typically conducted after a Phase I ESA. It involves soil, soil vapor, and groundwater sampling to determine whether hazardous materials and petroleum products are present or absent at a site. If you are considering purchasing a property that you suspect may be contaminated, a Phase II ESA is one of the best ways to assess potential responsibility and future remediation costs.

At Projexiv Environmental, we conduct Phase II ESAs in accordance with ASTM E1903-11 Standard Guide for Environmental Site Assessments, or we can tailor our approach to meet the specific requirements of our clients. Our team of experts can also suggest remediation plans if necessary.

Limited Subsurface Investigation (Limited Phase II ESA) vs. Phase II ESA

While a Phase II ESA is not always required after a Phase I ESA, it may be necessary if a Recognized Environmental Condition (REC) or other environmental concerns are identified. It is important to note that a subsurface investigation cannot be referred to as a “Phase II Environmental Site Assessment” without a legitimate Phase I ESA as a foundation. Otherwise, it is simply a “limited subsurface investigation.”

A Limited Subsurface Investigation (Limited Phase II ESA) is sampling necessary just to confirm the presence or absence of a pollutant or Recognized Environmental Condition (REC). In contrast, a comprehensive Phase II ESA includes extensive sampling to fully characterize the extent of contamination and analyze potential migration pathways and potential receptors so that cleanup costs can be estimated.

Phase 2 ESA

Key Components of a Phase II Environmental Site Assessment Report

A Phase II ESA report typically includes the following key components:

Groundwater depth

Analytical results of the collected samples

A detailed report on contaminant concentration presents on site

Field information such as field observations and screening results

Suggestions for further investigation (if needed) to further delineate or characterize impacts if concentrations of certain compounds exceed the applicable screening or action levels.

The Scope of a Phase II Environmental Site Assessment

Since every site is unique, there is no “typical” Phase II ESA. The scope of work for a Phase II ESA is tailored depending on the site’s Phase I ESA and a number of variables, such as previous activities at the property, known or suspected releases, prospective dangers, and the client’s risk tolerance. Metals, semi-volatile organic chemicals, and volatile organic compounds are typical industrial and commercial site pollutants. However, depending on the particular property, many other forms of contaminants might exist, and these should be addressed in the Phase II ESA.

At Projexiv Environmental, we ensure that our Phase II ESA reports accurately and comprehensively reflect the current condition of your property. If necessary, we can also suggest whether a Phase III ESA or a remediation program is required.

If you are looking for experienced Phase II Environmental Site Assessment experts, Projexiv Environmental can help you. Contact us today to learn more.

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