May 2008
Environmental Due Diligence Q&A
By Kent Johnson

What is due diligence?
The process of inquiring into the environmental characteristics of a parcel of commercial real estate or other conditions, usually in connection with a commercial real estate transaction. The degree and kind of due diligence vary for the different properties and differing purposes.

What is a Phase I ESA ?
The practices that constitute “all appropriate inquiry” into the previous ownership and uses of a property to satisfy one of the requirements to qualify for the innocent land owners defense to CERCLA (Comprehensive Environmental Response, Compensation and Liability Act of 1980) Liability.

What are the Components of a Phase I ESA?
A. Records Review
Records Review covers essentially all local, state and federal records available for the property and adjoining properties within a minimum search radius surrounding the property as set forth in ASTM E1527-00. Historical data review in the form of aerial photographs, city directories, Sanborn Fire Insurance maps, topographic maps, soils maps.

B. Site Reconnaissance
Site Reconnaissance covers a comprehensive visit of the property identifying all associated structures within the property, current and past uses of the property, current condition of the property and obtaining information relating to identifying any potential recognized environmental conditions associated with the property.

C. Interviews
Interviews are to be conducted with the current property owners and past property owners (when ever possible) relating to their knowledge of previous or current environmental conditions as it relates to the property. The new EPA’s AAI “All Appropriate Inquiries” law puts more focus on additional interviews of former property owners and adjoining property owners.

D. Reporting
Reporting consists of documenting all records reviewed, observations made during historical reviews, observations made during the site reconnaissance, interview results, discussion of any data gaps found in any of the materials reviewed, any recognized environmental conditions observed and the conclusions and recommendations reached in this assessment.

What is the Purpose of a Phase I ESA?
To identify any and all recognized environmental conditions in connection with the property.

What is a Recognized Environmental Condition?
The presence or likely presence of any hazardous substances and/or petroleum products on a property and/or adjoining the property that indicate an existing release, a past release, or a material threat of a release of any hazardous substances and/or petroleum products into structures on the property or into the ground, groundwater, or surface water of the property and/or adjoining properties.

What are Some Examples of Recognized Environmental Conditions?

  1. Lumber yard with treated lumber storage (Potential for Arsenic and/or Chromium from treated lumber chemicals).
  2. Previous or current farming operation (The potential for diesel contamination from storage tanks, farming chemical use/disposal).
  3. Previous or current operation of a Mobile Home Park and/or small neighborhood community with an operating waste waster treatment plant, also the possible use of heating oil tanks for individual heating of the residences (Potential for Heavy metals, solvent and/or petroleum products within the former settling ponds).
  4. Previous or current operation of an Auto Body and/or Auto Repair facility in business for several years and operating an on-site septic system (Existence of Paint Booth’s, underground and/or above ground vehicle lifts, uses of solvents, paint thinners, and/or petroleum products near floor drain’s, concrete expansion joints, the on-site septic systems).
  5. Previous or current Dry Cleaner in operation for several years and/or several years ago and operating an on-site septic system (Chlorinated Solvents and/or Petroleum Based Solvents used for several years as dry cleaning agents, possibly spilled in and around floor drains, expansion joints, out side behind buildings, the on-site septic system).
  6. Previous or current operation of a Printing Company for several years with an onsite septic system (Solvents and/or petroleum products used to clean the presses in and around floor drain and concrete expansion joints).
  7. Previous gasoline service station in operation several years ago and no records of tanks being removed (Petroleum products discharged from the tanks possible and no documentation of whether the tanks were ever removed or if testing was conducted during the removal).
  8. Current gasoline service station in operation for with no documented contamination (Potential fill port contamination, product piping contamination, dispensing area contamination. Regulatory compliance inspections are not foolproof means of eliminating and/or detecting leaking underground storage systems).

Kent Johnson is the Transaction Program Development Manager with August Mack Environmental, Inc. in the Indianapolis office. He has more than 14 years experience with extensive knowledge regarding Brownfield site investigation and remediation, Phase II subsurface investigation, Underground Storage Tank (UST) removal and closure, groundwater monitoring sampling programs, asbestos and lead investigations and management, as well as indoor air quality investigations. Kent can be reached at 317.916.3177 or via e-mail at kjohnson@augustmack.com.
© 2011 August Mack Environmental, Inc.

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