Services
Phase I Environmental Site Assessment
ASTM E1527-21 compliant assessments performed by licensed Environmental Professionals and Professional Geologists. One-week turnaround.
After completing over 1,000 Phase I ESAs, Tetra Consultants delivers accurate, thorough, and lender-ready reports that meet the strictest ASTM guidelines — consistently, on time, and at fair prices.
Financial institutions routinely require Phase I ESAs before approving commercial real estate loans. Property sellers benefit from having one available for prospective buyers, and owners should understand potential environmental liabilities that may affect property value.
Our assessments cover historical records review, physical site inspection, regulatory database searches, and surrounding area reconnaissance. Each report is delivered in a client-friendly format suitable for lenders and legal counsel.
What's Included
- Historical records review (Sanborn maps, aerial photography, chain of title)
- Federal, state, and local regulatory database review
- Physical site inspection by a licensed EP or PG
- Surrounding area reconnaissance
- Interviews with current and past site owners/occupants
- Client-ready written report suitable for financial institutions
- ASTM E1527-21 compliant findings and conclusions
Frequently Asked Questions
What is a Phase I ESA?
A Phase I Environmental Site Assessment identifies Recognized Environmental Conditions (RECs) — past or present conditions that suggest hazardous substances may be present at a property. It is the standard due diligence tool used in real estate transactions.
When do I need one?
Lenders almost universally require a Phase I ESA before approving commercial real estate loans. Property sellers often obtain one in advance to speed up closings, and buyers use them to understand potential environmental liabilities before purchase.
What does it include?
Our Phase I includes a full historical records review, regulatory database search, physical site inspection, and interviews. All findings are compiled into a report that meets ASTM E1527-21 standards.
What happens if issues are found?
If Recognized Environmental Conditions are identified, a Phase II Site Assessment may be recommended to investigate further. We'll walk you through the findings and help you determine the appropriate next steps.
Who is responsible for contamination?
Liability depends on state law, the nature of contamination, and the circumstances of its origin. A Phase I ESA provides an Innocent Landowner Defense under CERCLA when properly conducted.
What access do you need?
Our inspector needs access to the full site including mechanical/boiler rooms, basements, and — in multi-unit buildings — approximately 10% of individual units.
Key Facts
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Tell us about your property and we'll send pricing within one business day.
Request a QuoteCall 516-500-3972