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. 

Safe Home Environmental will:

Review records

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

Review government databases

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

Visually inspect the site

Visit the site and nearby properties to observe current conditions.

Interview owners, neighbors and past workers

Find out what they know about site operations involving wastes and chemicals.

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.

  • 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.

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.