What to Expect From a Phase I Environmental Site Assessment

Whether you’re buying commercial property, financing a deal, or advising a client through a transaction, you’ve probably heard that a Phase I Environmental Site Assessment is required. What that actually means is less clear for a lot of people.

What is a Phase I ESA?

A Phase I Environmental Site Assessment is a formal investigation into the environmental history and current condition of a property. It’s conducted before a real estate transaction to identify whether there’s a risk of contamination from past or current land use.
The report follows the ASTM E1527 standard, which the EPA recognizes as satisfying the All Appropriate Inquiries (AAI) rule under CERCLA. That matters because AAI compliance gives buyers and lenders certain legal protections against inheriting liability for contamination they didn’t cause.

Most commercial lenders require a Phase I ESA before approving a loan. Beyond the lender requirement, it’s simply good practice for any buyer who wants to understand what they’re purchasing.

What does a Phase I ESA include?

The Phase I process involves four main components.

Records review. We research the property’s history going back decades: aerial photographs, Sanborn fire insurance maps, city directories, topographic maps, historical building permits, and environmental database records for federal and state regulatory sites.

Site inspection. We walk the property and observe current conditions, signs of dumping, staining, stressed vegetation, unusual odors, underground storage tanks, or other indicators of potential contamination. We also observe neighboring properties that could have affected the site.

Interviews.

We speak with current owners, occupants, and sometimes neighbors or local agencies to gather information that may not appear in records.

Report.

All findings go into a written report that identifies any Recognized Environmental Conditions and provides
recommendations.

What is a Recognized Environmental Condition?

A Recognized Environmental Condition, or REC, is the key finding in a Phase I ESA. It’s the professional judgment that there is or may be a release of hazardous substances or petroleum products that could affect the property.

A REC doesn’t mean the property is contaminated. It means there’s reason to look more closely. Common REC triggers include a former gas station on or near the property, historical industrial use, evidence of underground storage tanks, or nearby regulatory sites involving hazardous materials.

What happens if a REC is found?

If a REC is identified, the next step is typically a Phase II Environmental Site Assessment. A Phase II involves actual sampling: soil borings, groundwater monitoring wells, and laboratory analysis to confirm whether contamination is present and how extensive it is.

A Phase I with a REC doesn’t automatically end a deal. Many transactions proceed through the Phase II process. What it does mean is that more information is needed before making a final decision.

How long does a Phase I ESA take?

Typically two to three weeks for a straightforward property, though timing varies based on property type, location, and the complexity of the historical research. If you’re working toward a closing deadline, build the Phase I into your timeline early rather than ordering it at the last minute.

Who needs a Phase I ESA?

Buyers and borrowers in commercial and industrial real estate transactions. Lenders financing those deals. Developers conducting pre-acquisition due diligence. Business owners acquiring companies that own or lease real property.

We’ve conducted Phase I ESAs on service stations, dry cleaners, industrial properties, retail centers, automotive facilities, agricultural land, office buildings, and residential developments across the US and in Canada.

If you have questions about whether a Phase I is needed for your deal, or want to talk through timing, give us a call.

(888) 811-5392 | FarmerEG.com