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Phase 1 Environmental Site Assessment

Highest-Rated Phase 1 Environmental Site Assessors Throughout New England.

Phase I Environmental Site Assessment

What Is A Phase 1 Environmental Site Assessment (ESA)?

Under the general standards, ASTM E1527-13, and ASTM E1527-21 a Phase 1 Environmental Site Assessment (ESA) is typically performed for a real estate holding that identifies potential or existing environmental contamination liabilities. The analysis often called an ESA, typically addresses both the underlying land as well as physical improvements to the property.

The Phase 1 Environmental inspection is generally considered the first step in the process of environmental due diligence. In general, the assessment is performed to uncover any environmental risks before purchasing a property. Phase 1 ESA is also performed to identify if any contaminations have occurred since the last Phase I or if a property owner/manager rents the property to an entity that may have caused an environmental concern.

Standards for performing a Phase 1 site assessment have been promulgated by the US EPA and are based on the updated  ASTM E1527-13 and ASTM E1527-21 Standards. The actual sampling of soil, air, groundwater, and/or building materials is typically not conducted in a Phase 1 ESA checklist.

If a site is considered contaminated, a Phase 2 Environmental Site Assessment may be conducted, ASTM test E1903, a more detailed investigation involving chemical analysis for hazardous substances and/or petroleum hydrocarbons.
If the site has contamination, then Phase 3 may be issued. Phase 3 is the actual remediation/removal of the contamination.

Who Should Have A Phase 1 Performed?

Any entity that is going to purchase land to be developed or is a commercial/industrial property, or leases land commercially, should have phase one commercial property inspection performed. This reduces risks later on that may not have been known. Phase 1 is known to release “Landowner Liabilities”. A big misconception is a deed releases the landowner but it does not, environmentally.


We offer Phase 1 Environmental Assessments for Massachusetts, New Hampshire, & Maine.

Types of commercial facilities we have inspected:

  • Office Buildings
  • Apartment and Multi-Family Buildings
  • Strip Malls
  • Motels/Hotels
  • Car Dealerships
  • Government Buildings
  • Industrial Buildings
  • Multi-Use Buildings
  • Churches
  • Restaurants
  • Warehouses
  • Retail Stores
  • And more…

We also offer the following commercial inspection services:

  • Phase I Environmental Site Assessmentwe follow ASTM Standard E 1527-05 & -13, includes Vapor Encroachment ASTM Standard E 2600-10.
  • Transaction Screen Assessment, we follow ASTM Standard E 1528-06
  • Records Search with Risk Assessment (RSRA).
  • Property Preservation Field Inspections
  • Construction Bank Draw Inspections.
  • Budget Review Analysis
  • Radon in Air Testing
  • Building Permit Review
  • Cost Estimates Of Repairs Required
  • Water Quality Testing
  • Lead Paint Testing
  • Septic Inspection
Learn More About Records Search With Risk Assessments (RSRA)
Learn More About Construction Bank Draw Inspections

Sample Reports

Click on one of our sample reports below to view them.

What do our customers say about us?

I was very pleased with the building inspection performed by Steve Mangekian of Alpha Inspections. I needed a company to perform an inspection on the commercial property we are purchasing, and Steve did a very thorough job, for a fair price. I’d recommend Alpha Inspections to anyone needing a home or commercial building inspection.

Robin D. Gelinas

I contacted Alpha for an inspection on a commercial building I was looking to buy. I was nervous about the process, Steve and Tom made me feel like I was in good hands. They pointed out the good, the bad, and the ugly. Some of the issues they noticed saved me thousands of dollars off asking price. I would recommend Alpha Building Inspections to anyone looking at residential or commercial property. Professional and educated in all facets of construction, Alpha helped my growing business take the next step.

Keegan D.

I had the opportunity to meet with Steve Mangekian recently when he inspected a commercial real estate building for me. I was immediately impressed by his professionalism and his knowledge. He spent a significant amount of time inspecting the building from top to bottom. He discussed some of his findings with me in person and had a written report in my hands within 24 hours, impressive! Thanks Steve for a great job. Well worth the fee that I paid to Alpha.

Dr David Caban

Get a Phase 1 Environmental Site Assessment Quote Today.