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Phase I Environmental Site Assessment

The Phase I Environmental Site Assessment (ESA) uses existing information to help a community understand the property conditions by examining current and historical uses of the site and potential threats to human health or the environment. Environmental assessments must be completed or overseen by an environmental professional, which may include a licensed geologist, engineer or site professional. 

The ASTM 1527-21 standard was recently updated and is the basis for this service.

Safe Home Environmental will perform a:

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Records Review

Examine past and current land uses through property photographs, maps and historical records.

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Gov database Review

Examine ownership and environmental records related to managing or disposing of hazardous substances and petroleum products.

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Site Inspection

Visit the site and nearby properties to observe current conditions.

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Find out what they know about site operations involving wastes and chemicals. All Appropriate Inquiry (AAI)

A Phase I Environmental Site Assessment also helps determine who is potentially liable for environmental contamination found on a property. Performing a Phase I Environmental Site Assessment prior to owning a property is often equivalent to conducting All Appropriate Inquiries (AAI), a necessary practice for obtaining liability protection under CERCLA for prior contamination. When a potential owner conducts AAI (in compliance with the regulations at 40 CFR 312) on a brownfield, he/she may have a defense to liability if contamination is later discovered.


Who can benefit from a P1ESA?

  • Innocent landowners
  • Continuous property owners
  • Bona fide prospective purchasers
  • Units of state or local government and
  • Government entities who obtain property through eminent domain

What happens after the Phase 1 ESA is completed?

  • If evidence of known or potential contamination is found at the property, further investigation (a Phase II Environmental Site Assessment or additional assessment) is needed.
  • If little to no evidence of potential contamination is found at the property, often the next step is to proceed with reuse or redevelopment.
ECAN Phase 1 ESA Tech

secure investment, secure future


Our technical staff holds IAC2 certification for indoor air quality and our senior team members are certified by both DEQ and NRPP for environmental quality and radon proficiency.

What We Test

Water, Radon, Mold, Meth, Asbestos, Lead-Based Paint, and more.


We're here to answer any questions you have about your testing.