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Site Characterization and Phase II Environmental Site Assessment

Phase II Environmental Site Assessments (ESAs) are subsurface investigations typically performed during property transfers to assess specific Recognized Environmental Conditions (RECs) identified in the Phase I ESA for the property. Phase II ESAs often include sampling of soil, groundwater and/or soil vapor. The scope of a Phase II ESA may vary depending on the specific needs of prospective buyer and generally is highly focused on answering vital questions related to purchase price, financing or long-term liabilities.

Site characterization is typically a more comprehensive evaluation of soil, groundwater, and/or soil vapor samples carried out any time a better understanding of the subsurface conditions is needed. For example, groundwater characterization is often required before a NPDES discharge permit will be issued and includes installation of numerous shallow and deep monitoring wells to assess contaminant concentrations and extent, depth to water, groundwater flow velocity and direction and/or determine soil remediation or disposal needs. 

ECS has performed thousands of site characterizations and Phase II ESAs for both public and private sector clients.

Please contact us to speak with one of our experts in site characterization and assessments.