Written By: Doug Ruhlin | Last Updated: March 05, 2026
Time to Read 12 Minutes
If you're researching a Phase I Environmental Site Assessment, there's a good chance you're doing so because a transaction requires it. Maybe you're purchasing a property, financing an acquisition, evaluating a redevelopment opportunity, or conducting due diligence as part of a larger deal. In most cases, the Phase I is not optional. It’s a required step to protect liability and understand the environmental risk associated with the asset.
But if you’ve started comparing providers, you’ve probably realized something important: not all Phase I reports are created equal. The way the work is performed, who actually conducts the investigation, and how environmental risks are evaluated can vary significantly between consulting firms.
At RMA, our Phase I Environmental Site Assessment work is built around careful risk evaluation and senior-level involvement from start to finish. That approach tends to look different from the high-volume model used by many consulting firms.
In this guide, we’ll walk through how Phase I assessments work, how our process is structured, and how to determine whether our approach is the right fit for your transaction. If you'd rather talk through your specific deal, you can start by reaching out to our team here.
Most Phase I Environmental Site Assessments are performed during property transactions to evaluate whether environmental contamination could create liability for the buyer. Under U.S. environmental law, property owners can become responsible for contamination even if they did not cause it.
That means historical environmental conditions associated with a property can become inherited liabilities. The Phase I Environmental Site Assessment exists to address that risk. By conducting environmental due diligence prior to acquisition, buyers can qualify for important liability protections under federal environmental law.
In practical terms, the Phase I assessment examines the historical and current uses of a property to determine whether there is evidence of potential environmental contamination.
Environmental due diligence is not simply about checking a regulatory box. For many transaction teams, the findings of a Phase I Environmental Site Assessment directly influence how the deal is structured.
If environmental concerns are identified, they may lead to:
In some cases, the findings may even influence whether the acquisition moves forward at all.
In other words, a Phase I report is not just a document produced for closing. It becomes part of the broader risk management strategy surrounding the transaction.
In many real estate transactions, lenders require a Phase I Environmental Site Assessment before financing can be finalized. Banks, private equity groups, and institutional investors rely on these reports to confirm that environmental liabilities associated with the property have been evaluated before capital is deployed.
Because of that, the quality and defensibility of the assessment can matter significantly. A well-executed Phase I provides clarity about environmental risk exposure and ensures the findings will hold up if they are reviewed by legal teams, regulators, or future buyers.
Every Phase I engagement begins with a conversation. Sometimes that conversation happens through a few emails with someone managing the transaction. Other times, it takes place in a meeting with attorneys, internal transaction teams, lenders, or outside advisors.
Our goal is simple: understand the asset, the timeline, and the structure of the deal.
You can ask us questions about:
This conversation is free. It’s not a paid consultation and it’s not a sales pitch. It’s simply a discussion about whether our approach is the right fit for your team and transaction.
If we all think it makes sense to move forward after our initial conversation, we prepare a proposal outlining:
The proposal explains exactly what will be completed and confirms that the work will align with ASTM Phase I standards. Once the agreement is executed, the assigned consultant takes ownership of the project.
For a sneak-peek at your cost, try the Phase I pricing calculator below to get a ballpark estimate before talking to anyone!
One of the defining characteristics of our Phase I practice is continuity of expertise.
The senior environmental professional assigned to the project conducts the:
That means the same individual who observes the property is the person forming the professional conclusions.
This differs from many high-volume consulting models where site inspections, research, and report preparation are divided across multiple staff members.
For buyers acquiring active industrial or commercial facilities that will continue operating after closing, environmental due diligence sometimes needs to go beyond historical liability.
In those cases, we can incorporate a regulatory compliance review into the Phase I process.
This additional evaluation examines whether the facility appears to be operating in compliance with applicable environmental regulations, including areas such as:
If potential compliance deficiencies are identified, we can also assist with corrective actions and program development to bring the facility into compliance.
This allows buyers to address regulatory exposure before it becomes their responsibility after closing.

One of the most important aspects of a Phase I Environmental Site Assessment is determining whether Recognized Environmental Conditions (RECs) are present.
RECs represent environmental conditions that may indicate the presence of contamination requiring additional investigation.
In many high-volume Phase I consulting environments, there can be a tendency to recommend Phase II testing whenever uncertainty exists. From a liability standpoint, that approach can feel like the safest option. But recommending a Phase II Environmental Site Assessment is not a minor step. It introduces:
Because our assessments are led by senior environmental professionals with decades of site evaluation experience, we take a measured approach to these decisions. Our goal is to determine whether a condition materially changes the environmental risk profile of the property.
If additional investigation is truly warranted, we explain that clearly. If a condition does not represent a meaningful environmental liability risk, we explain that just as clearly in the report.
In other words, what clients receive is not just a document. They receive an informed environmental risk evaluation tied directly to the business decision being made.
This is one of the most important questions to answer when you're choosing a consulting firm, and it's something we try to be very transparent about.
Environmental consulting is not one-size-fits-all, and Phase I Environmental Site Assessments are no exception. Different consulting firms serve different parts of the market. Some firms focus on very high-volume, low-cost Phase I reports. Others focus on complex industrial transactions that require deeper evaluation and experience.
Neither approach is inherently right or wrong. They simply serve different needs. So the real question becomes: where does your transaction fall on that spectrum?
Most of our Phase I work supports organizations involved in commercial and industrial transactions where environmental risk is part of a much larger financial decision.
We commonly work with groups like:
These transactions often involve things like:
In those situations, a Phase I assessment isn’t just a document needed to get through closing. It becomes part of the broader risk evaluation process surrounding the transaction.
That’s where our approach tends to fit best. Clients in these situations are typically looking for a consultant who can provide experienced analysis and thoughtful interpretation of environmental risk, not just a standardized report.
On the other end of the spectrum, there are plenty of situations where our approach probably isn't necessary.
For example, if you're purchasing a small rural property and primarily need a Phase I report to satisfy a lender requirement, there are many capable consulting firms positioned specifically for that type of assignment.
Those firms often operate what’s known as a high-volume Phase I model. Their systems are designed to complete reports quickly and efficiently, often at lower price points.
That approach works well when:
For those types of projects, speed and cost are usually the biggest priorities, and many firms are structured specifically to deliver that.
Rather than operating as a high-volume report production model, our work is built around:
Because of that structure, we generally operate as a premium Phase I provider. Our pricing reflects the level of experience and involvement applied to each assessment. For clients managing transactions where environmental liability could affect pricing, negotiations, or long-term operational risk, that level of analysis tends to provide the most value.
In other words, if environmental due diligence is simply a checkbox, there are many firms that can handle that efficiently. But if the environmental evaluation is part of a larger financial or strategic decision, that's where our approach tends to be the strongest fit.
If you're currently evaluating Phase I providers and want an approach built around senior-level involvement, continuity, and transaction-focused environmental analysis, the best place to start is with a conversation.
Reach out here and tell us a little about the property or transaction you're working on.
From there, we’ll talk through the basics: the asset, the timeline, the structure of the deal, and what type of due diligence makes sense for your situation.
Sometimes that conversation takes ten minutes. Sometimes it’s a longer discussion with the transaction team. Either way, the goal is simple: figure out whether we’re the right partner for the assignment.
If we are, we’ll walk you through next steps. If not, we’ll point you in the right direction.
A Clear, Real-World Guide to Understanding Phase I Environmental Site Assessments When we start talking about Phase I Environmental Site Assessments (ESAs), we often get the same reactions: "What is...
Just fill out the form and our team will be in touch as soon as possible. We’ll learn a little more about your situation and figure out if we’re the right fit to help. If it looks like we can, we’ll walk you through the next steps and answer your biggest questions. If not, we’ll point you in the right direction so you can move forward with confidence.
Looking for more information? Below is a comprehensive collection of our Phase I Environmental Site Assessment (ESA) articles covering requirements, costs, timing, scope, RECs, Phase II comparisons, special scenarios, and transaction considerations.
Whether you need help with a single requirement or want to hand off your entire environmental program, we get it done right, the first time. You'll feel protected, confident in your company's regulatory standing, and ready for whatever comes next.
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