Environmental due diligence is an essential part of any commercial real estate transaction. A properly conducted Environmental Site Assessment identifies potential environmental conditions that may affect a property and helps buyers, lenders, and property owners understand and manage environmental risk.

Harris & Lee Environmental Sciences provides environmental due diligence services for commercial and industrial properties throughout the United States. Our Phase I Environmental Site Assessments are performed in accordance with ASTM E1527-21 and the U.S. EPA All Appropriate Inquiries (AAI) requirements.

Compliance with AAI is an important component of establishing certain protections from liability under CERCLA. Our experienced environmental professionals provide thorough, independent assessments designed to identify environmental concerns and provide clients with clear, practical information for making informed real estate and lending decisions.
All Appropriate Inquiries (AAI):
More information on AAI requirements for Phase I Site Assessments,  and CERCLA Brownfields Amendments liability exemptions, (CERCLA Liability Limits).
Importance of Working with an Environmental Site Assessment:  A $10,000,000 liability nightmare Waste Oil Soil Contamination:
An EPA investigation reported zones of waste oil contaminated soil on a 100-acre site.
“Worst of Worst” of Environmental Risks:  Inadequate secondary containment virtually assures Perc contamination Costly Erroneous Conclusion:
An environmental site assessment indicated likely contaminated soil.  $100,000 later, no oil was found.

Harris & Lee Environmental Sciences provides the following services:

– Full AAI compliant (ASTM E1527-21) , legally defensible environmental site assessments:

  • Phase I – ASTM E1527-21 Environmental Site Assessments
  • Phase II – subsurface investigations and environmental sampling
  • Phase III – remediation and monitoring
  • Phase IV – regulatory closure

– Transaction Screen Assessments (ASTM E1528-22)

– Records Search with Risk Assessment including professional interpretation by Harris & Lee Environmental Sciences

– Review and evaluation of environmental reports and other environmental due diligence documents