PHASE I ENVIRONMENTAL SITE ASSESSMENT SERVICES

Orion Environmental:  Phase I Environmental Site Assessments in Knox County, Sevier County, Anderson County, Blount County, East Tennessee, and other states.  Concise reports, findings, and recommendations.

Phase I ESA Facts

What is a Phase I ESA and how is it used?

Phase I Environmental reports are prepared for real estate and business transactions such as: land purchases, building purchases, leases, business purchases, new residential developments and bank loans.  The main purpose of a Phase I Environmental report is to make sure you know the true value of the property and to assure there is no soil or groundwater contamination from previous use or neighboring sites that may be impacting the property's value or limiting its use due to agency-mandated cleanup that can cause human health exposure and offsite migration and property devaluation.  The Phase I Environmental report is a site-specific study for the presence or potential presence of hazardous substance or petroleum product releases into the soil and/or groundwater, as well as, into structures, which can migrate through the floor to the subsurface. 

The Phase I Environmental report should adhere to ASTM Standard E-1527-13 in order to provide Landowner Liability Protection and to discover any unknown environmental problems at the property.  Orion’s Phase I reports adhere to American Society for Testing and Materials (ASTM) Standard E-1527-13 and U.S. EPA All Appropriate Inquiries Rule (40 CFR Part 312).  Having provided due diligence services in real estate and business transactions for over twenty years, Orion understands our clients’ needs. Our extensive experience helps our clients make informed decisions regarding existing or potential environmental liabilities, when they are purchasing or leasing a property or business.  We are able to complete Phase I ESA reports quickly and cost-effectively.

The Phase I Environmental ASTM Standard is copyrighted, so we cannot post a copy.  However, you can read a summary by clicking the following link.

American Society for Testing & Materials Standard E-1527-13 Standard Practice for Environmental Site Assessments: Phase 1 Environmental Site Assessment Process

The Scope of a Phase I ESA

Each Phase I ESA is site-specific.

Site Visit

  • Inspection of the Site by a trained and experienced Environmental Professional

  • Catalog the Presence of Hazardous Materials or Petroleum Products on site


Historical Research

  • Historical Aerial Photographs

  • Street Directories

  • Building Permits

  • Planning Records

  • Topographical Maps

  • Sanborn Fire Insurance Maps

  • Department of Oil and Gas Maps

  • Title Information

Geology and Hydrogeology

  • Soil Type

  • Geological Setting

  • Groundwater Depth

  • Vapor Encroachment Screening

Regulatory Research

  • Fire Departments

  • State Environmental Agencies

  • Federal Environmental Agencies

Interviews and Document Review

  • Interview Tenants and Owners

  • Interview State and Local Regulators

  • Review Provided Reports

If a Phase I ESA identifies potential contamination of the site by hazardous materials, a Phase II ESA can be conducted to confirm the presence of hazardous materials.  Some Phase II activities can include:  soil and/or groundwater sampling; testing for underground storage tanks or buried drums; sampling of hazardous material drums onsite.  Depending on the results of the Phase II ESA, no further testing may be necessary, further site investigation is needed, or potential remedial actions may be necessary to clean up the property.  We work with you through the complete ESA process.

Orion Environmental has provided Phase I Environmental Assessment services since 1988 in Knox County, Sevier County, Anderson County, Blount County, East Tennessee, and other states.  Orion’s professional methods and results are guaranteed.