© 2020 by Assessment Associates, Inc.

Call us today (503) 233-8565



Assessment Associates

Environmental Consulting

Pacific Northwest Environmental Experts



A Phase 1 ESA report will identify potential or existing environmental liabilities

A Phase 2 ESA digs deeper after contaminants are suspected

Asbestos surveys safely identify asbestos-containing materials

We can bring your facility into stormwater compliance with ODEQ 

We Due Diligence!

Environmental due diligence isn't just a formality, it's a deep dive into the

ecological health of your property, which can directly affect its value and livability. 


The first step in your real estate transaction should be a thorough environmental study by our experienced professionals to find any potential hidden environmental problems.

“In order to provide our customers with the best product at the lowest price, McDonald’s requires the same of our environmental contractors. Michael O’Connor and AAI fill that requirement perfectly. I can pick up the phone and know I’ll have a proposal in my hand in an hour or two, with a firm due date and a very reasonable price. AAI also provides excellent follow-up services, when needed, after the report has been issued.”

–Anne Thorpe, McDonald’s USA

Why AAI?


Prompt, Professional Service:

  • We’ll send a price quote in about an hour. Phone quotes given instantly!

  • We’ll agree to a due date you can BANK on

  • After delivery, we’ll continue to work with the project stake holders to ensure that your transaction goes as smoothly as possible


Competitive Rates:

We know your development budget is tight. Our innovative use of data and business management tools in our environmental reporting keeps our overhead low and allows us to pass the savings on to you


Sustainable from the Ground Up:

  • We offer paperless Phase 1 Environmental Site Assessments and Phase 2 Assessment reports delivered on a secure server

  • We maximize the use of recycled office products

  • We promote alternative employee transportation options

  • We encourage employees to telecommute

  • Our offices are partially powered by solar energy


Experienced Staff, Deep Knowledge of the Regulatory World

  • Our staff have done thousands of Phase 1 Environmental Site Assessments

  • We’re fully insured to industry standards

  • We’re licensed in Oregon, Washington, and California

“We recently hired AAI to evaluate one of our properties prior to putting it on the market. When the inspection revealed that a neighboring industrial facility was using a corner of our property as a burn pit and waste dump, we were afraid we’d spend months in court or thousands on a cleanup. Then Mr. O’Connor suggested something none of us thought of — convincing the owner of the adjoining industrial site to agree to a lot line adjustment to transfer ownership of the contaminated land to the industrial site. The owner of the industrial site site now owns the contamination he caused, and we’re now able to market the property free of any environmental encumbrances. AAI also streamlined the whole process by hiring the surveyor, helping with negotiations, and quickly updating the Phase I ESA to reflect the lot line adjustment. We really appreciate AAI’s personal service, innovative approach, and genuine concern for our situation.”

–Kristin Harder, Aspen Foundation

A Few of Our Clients...

“As a commercial property developer, I need to know every potential environmental problem at a property before I buy it. With over 900 environmental assessments in the Portland area under his belt, Mike really knows the environmental characteristics of the neighborhoods we work in. Plus he is affordable, fast, responsive, and smart. Overall, he’s a great guy to work with.”

–Matthew Schweitzer, Windermere North Rim Commercial Real Estate

Contact us today with any questions

We're here to help! Contact us by phone or email, or just stop by our office.