Phase I Environmental Site Assessment reports are prepared for real estate and business transactions such as: Land purchases, Building purchases, Leases, Business purchases, Baseline studies, New development, and Bank Loans.  The purpose of a Phase I report is to identify environmental conditions prior to entering into a contract for sale, re-financing, or option agreement, and ultimately to assist property owners to choose a site that presents manageable environmental risks.


All Environmental Site Assessments (ESA’s) are qualitative assessments intended to help owners of property satisfy one of the requirements to qualify for Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA) innocent landowner defense.  Since the 1980’s, it has also been incorporated into the environmental policies of most lending organizations as a requirement of any loan application involving a parcel of commercial real estate.


Our Phase I ESA reports will adhere to the American Society for Testing and Materials (ASTM) Standard E-1527-13.  This ASTM standard adheres to the All Appropriate Inquiries Rule, codified into law by the Environmental Protection Agency (40 CFR Part 312).  This is the type of report that is required by FDIC-member banks and most other lending institutions.  Even if you are paying cash for a property, we highly recommend ordering a Phase I report prior to purchasing any property.


Dillterra offers fast turnaround times, usually within one week, and competitive pricing.

Useful information

(The following articles contain information everyone should know before conducting environmental due diligence)

All Appropriate inquiries legal primer

“Loans going through foreclosure? Why you shouldn’t skimp on environmental due diligence” 

“Creating and updating an environmental risk management policy”

“Six things lenders should know about the federal site assessment”

“Environmental screening tool for bankers”

“FDIC’s Guidelines for an Environmental risk program”

“Cost of RCRA compliance not eliminated by bankruptcy”

“Going through a Phase? Knowledge of Fannie Mae’s and freddie mac’s environmental guidelines is key to multifamily deal completion”

“CERCLA BFPPP protection for tenants”

“New Due Diligence needed for SBA Loans”

“Bank agrees to pay nearly $1 million for environmental conditions at defunct borrowers facility”

Regulatory Update: Environmental risk management for commercial lending- 45-minute educational Webinar presented June 27, 2007 by EDR provides an overview of the latest regulatory developments impacting environmental due diligence for commercial lenders. 


Small Business Administration information

SBA White paper: SBA’s modernized SOP includes environmental policy changes

SBA: SOP 50 10 5(B)

Flow Chart- The Steps of an SBA Environmental investigation


Vapor intrusion information

“upcoming astm standard for assessment of vapor intrusion” by anthony buonicore, pe, bcee, qep, chairman of the astm vapor intrusion task group.

“statutory and common law liability of owners and operators of property impacted by vapor intrusion” by larry schnapf

“commercial lenders welcome guidance from new astm standard for vapor intrusion” by derek ezovski and jeff telego

download astm e-2600-08- standard practice for assessment of vapor intrusion into structures on property involved in real estate transactions


Vapor intrusion articles

“new vapor intrusion guidance- an area of concern” pollution engineering, april 2008

“an unwelcome intruder” environmental protection, october 2007

“vapor intrusion issues: the lack of comprehensive assessment standards can lead to confusion in the industry” pollution engineering, july 2007
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Phase I Assessments