Do Your Due Diligence

​Phase 1 Environmental Site Assessments

Phase I Environmental Site Assessments are performed at commercial properties where environmental risk may be encountered and a higher level of confidence is required for environmental risk business decisions, and legal protection under All Appropriate Inquiries is required, 
​GEOTERREN will perform a Phase 1 ESA using the ASTM E1527-13 Standard Practice for Environmental Site Assessments: Phase 1 Environmental Site Assessment Process 

​GEOTERREN'S Phase 1 ESA includes an evaluation if the Subject Property is:
  • Listed on major local and national environmental databases, as required by the ASTM Standard for Phase 1 Environmental Site Assessments.
  • Surrounded by listed environmental sites within up to a one-mile radius of the Subject Property that may pose environmental risk to the property.

​​The Phase 1 ESA report includes:
  • Review of a Radius Map Report (RMR) for your Property.  
  • A site visit to visually evaluate Property conditions and nearby sites.
  • Interviews with available site personnel (environmental questionnaire submitted to owner and/or Property Manager).
  • Review of available historical information, such as Sanborn Fire Insurance Maps, historical aerial photographs, and/or city directories.
  • Review of available files from regulatory agencies (e.g., local fire and building departments, county health department).
  • Limited review of user-provided chemical data for the Subject Property, if available.
  • A Vapor Encroachment Screen.
  • 10- and 15-business day turnaround time is available.​

Environmental Transaction Screens

For sites where some environmental risk may be encountered and a higher level of confidence is required than a desktop review, but no legal protection under All Appropriate Inquiries is required, ​GEOTERREN will perform an Environmental Transaction Screen (ETS).  In such cases, ASTM E-1528 Standard Practice for Limited Environmental Due Diligence: Environmental Transaction Screen Guidelines are utilized.  The ETS includes:
  • Review of an Identified Radius Map Report (RMR) for your Property.
  • Evaluation of the hydrogeologic location of the Property, relative to the expected flow of groundwater in the Property vicinity, and an assessment of the potential for surrounding sites to pose environmental risk to groundwater beneath the Property.
  • A site visit to visually evaluate Property conditions and nearby sites.
  • Interviews with available site personnel (environmental questionnaire submitted to owner and/or Property Manager).
  • Review of available historical information, such as Sanborn Fire Insurance Maps, historical aerial photographs, and/or city directories.
  • Limited review of user-provided chemical data for the Property, if available.
  • An ETS Report signed by an experienced Environmental Professional.
  • 7- to -10-business day turnaround time is available.​

Desktop Review Report

For properties where minimal environmental risk is expected and no legal protection under All Appropriate Inquiries is required, GEOTERREN will prepare a Desktop Review Report (DRR) which includes evaluation of a Radius Map Report (RMR) for your Property.  ​The RMR identifies if the Subject Property is:
  • Listed on major local and national environmental databases required by the ASTM Standard for Phase 1 Environmental Site Assessments.
  • Surrounded by environmental sites within up to a one-mile radius of the Property.

The DRR deliverable includes a letter report summarizing the results of the evaluation and the RMR, and recommendations for further action, if deemed appropriate.  Turnaround time on a DRR is usually between 3 and 5 business days.  Under the desktop assessment, no site visit is performed.
A history of dry cleaning at a commercial property can lead to investigation and remediation costs that exceed the cost of the purchase price!

Know your site history...
BEFORE YOU BUY!
Note that  ASTM E1527-13 was updated with ASTM E1527-21 . The new standard was published by ASTM, accepted by EPA, and then the approval was rescinded by EPA. Once the E1527-21 standard is again EPA-approved, Geoterren's Phase 1 ESAs will be conducted in accordance with the new standard.

Information Required for Phase 1 ESA Preparation - User Responsibility

Information required for Phase 1 ESAs include: Assessor's Parcel Number(s), street address(es), owner of Subject Property, purpose of Phase 1 ESA, Reliant Parties (i.e., who is authorized to utilize the report), and site contact information (name and phone number)..

Under ASTM E1527-13, the User is to provide the Environmental Professional all previous investigation and/or remediation reports for the Subject Property, a preliminary title indicating ownership, specialized knowledge regarding the history of the Subject Property, environmental liens, environmental deeds, or Activity Land Use Limitations (AULs), and any devaluation of the Subject Property for environmental reasons. Where requested, GEOTERREN will order an environmental lien/AUL report at an additional cost.  
GEOTERRENEnvironmental Services - Experienced and Expeditious  - providing you the best possible product, On time and on budget.