Why Happens When a Phase II Investigation is Needed?

What occurs after an Environmental Site Assessment.

Sometimes, a Phase I ESA or an ETS identifies an elevated environmental risk and recommends further assessment. These recommendations are often addressed by a Limited Subsurface Investigation (LSI) or what, in the CRE industry, is referred to as a Phase II Investigation.

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Why Happens When a Phase II Investigation is Needed?

What occurs after an Environmental Site Assessment.

Sometimes, a Phase I ESA or an ETS identifies an elevated environmental risk and recommends further assessment. These recommendations are often addressed by a Limited Subsurface Investigation (LSI) or what, in the CRE industry, is referred to as a Phase II Investigation.

Phase 2 esa

Typically, a Phase II involves taking onsite samples of air, soil, or groundwater, depending on the type of suspected contamination. These samples are sent to a certified lab and tested. Based on the initial screening and interpretation of the analytical results, if an impact is not identified, no further assessment is typically recommended. When a Phase II identifies an impact at levels which pose a risk to human health or the environment, our Environmental Professionals will typically recommend additional investigations and/or remediation be completed to better characterize the nature and extent of the contamination.

The cost of these Phase II investigations can vary significantly from site to site depending on subsurface lithological conditions, type of media potentially impacted, types of chemicals that potentially have been discharged, the size the testing site, accessibility for sampling equipment and personnel completing the investigation, and how quickly the investigation needs to proceed. Cost estimates to perform these Phase II investigations should be prepared by Environmental Professionals competent in field investigations and well-versed in analytical procedures.

Phase II Limited Subsurface Investigation Specifications:

  • Further evaluates environmental risks identified in Phase I ESA
  • Turnaround within 12 business days from sampling
  • Performed in accordance with state and local guidelines
  • Generally, follows ASTM designation E1903-11
  • Site-specific sampling of: air, water, soil, groundwater, soil vapor
  • Analytic results used to evaluate the risk to human health, the environment, and to determine the physical/chemical risk
  • Prepared and signed by an Environmental Professional

Related Case Studies

Additional Information

  • Phase I ESA Specification Sheet

    Download our Phase I environmental site assessment.

  • Product Catalog

    Download our Phase I environmental site assessment.