
Phase I ESA Services in Portland
Proudly Providing Phase I Assessments Across
the Portland Metro Area and Beyond
Phase I ESAs help property owners, buyers, and banks reduce the risks of dealing with hazardous materials or potential environmental liabilities on a subject property. Recognized Environmental Conditions (RECs) are defined as “the presence or likely presence of any hazardous substances or petroleum products in, on or at a property due to release to the environment; under conditions indicative of a release to the environment or under conditions that pose a material threat of future release. De minimis conditions are not recognized environmental conditions.”
Phase I ESAs may satisfy a requirement to qualify for the innocent landowner, contiguous property owner or bona fide prospective purchaser limitations on the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) liability, also known as the landowner liability protections (LLPs).
Our Phase I ESAs are conducted in conformance with American Society for Testing and Materials (ASTM) Standard Practices for Environmental Site Assessments: Phase I Environmental Site Assessment Process, E1527-21, and the standard of “all appropriate inquiry” under the ORS § 465.255 (6), and 40 CFR Part 312 Standard Practices for All Appropriate Inquires.
- Groundwater Sampling
- Soil Sampling
- ODEQ Compliance
- Historical Assessment

Happy Customers in Your Neighborhood
Hear From Our Past Customers
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“Sam and Environmental Works did a 5 star job for us. We had a high radon level and they came out and they fixed it in the afternoon. They also saved us thousands of dollars by only doing part of the job they thought they would need to do. We only needed ha”- Patty M.
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“Em came out to do a sewer scope, she was early and called to see if she could get started early. She was professional, friendly, and thorough. She even researched our city’s code after the scope to let us know an issue would not be our responsibility”- Danielle M.
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“We had environmental works install a drain line by doing horizontal drilling for a 3” line for 110’, install the pipe and connect to existing plumbing that needed the extension. The work was done to our satisfaction in a single day.”- James R.
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“Both the managing and the on-site staff who actually installed the radon mitigation system were easy to work with. Specifically, I found them to be easy to communicate with and that they listened to my concerns.”- Diedra C.
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“I truly would recommend this company to anyone- specifically because of the customer service and value I received having Joe come on site. Joe at Environmental Works went way above and beyond helping me locate a very a hard to find tank in the backyard.”- Alex M.
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“I'm super happy with Environmental Works, they were able to get my Radon mitigation system almost immediately. The work was efficient and on time.”- Gustavo D.
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“Highly recommended for radon mitigation. They took the time to explain everything. I also tried their plumbing department. Joel was great. Fixed my leaky outdoor faucet fast and reasonably priced.”- Lori S.
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“I've been using Environmental Works for years because they're great, and I just discovered something else they do very well--classes to educate homeowners and real estate professionals about the risks and various factors affecting homes when it comes to se”- Corey E.
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“We were pleased with the way our mitigation system turned out. Our home proved to be somewhat of a challenging one to put in a system in a way that was acceptable to us. The crew worked hard to make it all work out well.”- Sheri S.
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