SITE Environmental Services, Inc.

Phase 1 Environmental Site Assessments

Service Areas
Phase 1 Environmental Site Assessments
Phase 2 Environmental Site Assessments
Underground Storage Tanks
Site Remediation Program
Engineering Evaluation and Design
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Due Diligence and a comprehensive Phase 1 Environmental Site Assessment is the only assurance buyers and sellers of commercial and industrial properties have to limit the potential continuation of liability after the sale.  To guide buyers, sellers, and consultants in the proper conduct of Phase 1 ESAs, the American Society of Testing and Materials (ASTM) and Federal Government have developed the following Phase 1 ESA Standards which detail the required elements of a proper Phase 1 ESA to best ensure an "innocent purchaser" defense:
  • ASTM Standard Practice E1527 
  • All Appropriate Inquiry (AAI) 40 CFR 312.10

Phase 1 ESAs are non-intrusive and non-destructive.  All Phase 1 ESAs conducted by SITE are in compliance with current ASTM and AAI protocol, and include:

  • Investigation of past land use history and current uses, including title history and municipal documentation
  • Federal and State Data Base Reports and site mapping
  • Sanborn Fire Insurance Map review
  • Review of aerial and topographic maps
  • An explanation of data gaps
  • Non-Scope issues, such as asbestos, lead-based paint, radon, mold, etc.
  • Reconnaissance of the site and surrounding areas for Recognized Environmental Conditions (RECs)
  • Interviews with the property owner or owner's representative
  • Preparation of a comprehensive final report of our findings, opinions, conclusions, and recommendations

SITE offers various pricing options and levels of assessment to meet your budget and assessment requirements.



SITE Environmental Services, Inc. | 15826 S. La Grange Road | Orland Park, Illinois  60462-4766
Phone: (815) 464-6560 | Fax: (815) 464-6481 | E-Mail: