Environmental Site Assessments (ESAs)

What's included in a DuBois & King Environmental Site Assessment?

At DuBois & King, Inc. we follow ASTM International's Standards:

• E1527-00: Standard Practice for Environmental Site Assessments: Phase 1 Environmental Site Assessment Process
• E1903-97: Standard Guide for Environmental Site Assessments: Phase II Environmental Site Assessment Process

Phase I Environmental Site Assessments include:

1. Research into historic site use and development: Survey personnel familiar with reading deeds and titles conduct deed research. Environmental personnel contact state, federal, and local agencies and review available files; interview past or present owners, leasers, or key employees; and review other available information sources (historical documents, land plats and maps, business and industrial listings) looking for evidence that hazardous materials are or were once used at the site.
2. Limited Site Investigation: An environmental scientist, hydrogeologist, or environmental engineer conducts an on-site investigation to look for apparent signs of environmental contamination. This investigation may be a site inspection and a "windshield survey" of adjacent properties, or it may involve limited test pit excavations, depending upon the character of the site and the needs of the client.

Phase II Environmental Site Assessments include:

Delineation of the type, concentration, and extent of chemicals in soil, soil vapor, and groundwater. This allows the potential risk at a given site to be assessed and a regulatory agency to decide whether remediation is needed. A Phase II Site Assessment can also provide valuable information for the development of a risk assessment model, risk-based corrective action, and the design of a remediation system, if needed.

DuBois & King, Inc. performs Phase II Environmental Site Assessments tailored to meet each client's specific needs. The scope of a A Phase II Environmental Site Assessment may include drilling and sampling of soil borings, sampling of soil vapor, and installation and sampling of groundwater monitoring wells.

DuBois & King, Inc. also provides Property Condition Assessments (PCA) by a certified building inspector for an integrated, single-source approach to real estate transactions.

Need More Information?

To learn more about what DuBois & King, Inc. can do to help you with your Environmental Site Assessment needs please contact us.

For more information on the standards we follow for Phase I and Phase II Environmental Site Assessments visit the ASTM International website.

For more information on hazardous waste sites and super fund sites visit the United States Environmental Protection Agency website.

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