Property Condition Assessments: The Name That Has Set The Standard For over 27 Years.
PCA’s environmental consulting practice provides ASTM E1527 Phase I Environmental Site Assessments and ASTM E1903 Phase II investigations for commercial real estate transactions. PCA’s environmental reports support lender requirements, pre-acquisition due diligence, refinancing, redevelopment planning, and CERCLA Landowner Liability Protection defenses across all commercial property types nationwide. Reports are prepared by qualified Environmental Professionals as defined under 40 CFR Part 312 (the All Appropriate Inquiries rule).

A Phase I ESA is a documented inquiry into the current and historical uses of a commercial property, conducted to identify Recognized Environmental Conditions (RECs) — indications that hazardous substances or petroleum products are, have been, or are likely to be present at the property. The current governing standard is ASTM E1527-21, which the U.S. Environmental Protection Agency formally recognized in 2023 as satisfying the All Appropriate Inquiries (AAI) rule for the federal CERCLA innocent landowner, contiguous property owner, and bona fide prospective purchaser defenses.
A Phase I ESA does not involve sampling. It is an investigation built from four sources: site reconnaissance, a review of regulatory databases and historical land-use records, interviews with current owners and operators, and a review of the property’s chain of title and use history. The deliverable is a written report identifying any RECs, Controlled Recognized Environmental Conditions (CRECs), and Historical Recognized Environmental Conditions (HRECs) discovered during the inquiry, along with PCA’s recommendations.
Most commercial real estate transactions trigger a Phase I ESA either through lender requirements, internal investor protocols, or a buyer’s own due diligence calendar. The most common triggers PCA sees are:
PCA conducts the four pillars of ASTM E1527-21 inquiry on every Phase I engagement, plus the standard supporting components:
When a Phase I ESA identifies Recognized Environmental Conditions, the next step is typically a Phase II investigation. A Phase II ESA is an intrusive subsurface investigation designed to confirm whether contamination is present at concentrations above applicable regulatory screening levels. PCA conducts Phase II investigations under ASTM E1903 and applicable state-specific guidance.
Phase II scope is tailored to the RECs identified in the Phase I report. Typical components include soil borings, groundwater monitoring well installation, soil and groundwater sample collection, laboratory analysis using EPA-approved methods, and a written report with data tables, boring logs, and interpretation against the relevant cleanup or screening standards (Tier 1 risk-based screening levels, state-specific commercial standards, or other applicable benchmarks).
If the Phase II confirms contamination requiring remediation or further regulatory action, PCA provides recommendations and can coordinate with environmental attorneys and licensed remediation contractors. PCA does not perform remediation itself — but PCA does provide independent oversight of the remediation work, as described below.
When remediation is required, PCA acts as a neutral third-party reviewer rather than the contractor performing the cleanup. Owners, lenders, and prospective purchasers engage PCA to provide independent oversight of remediation activities led by a separate environmental contractor. Typical oversight scope includes:
The separation between the assessment professional (PCA) and the remediation contractor preserves an independent verification chain that lenders, regulatory agencies, and prospective purchasers value. The remediation contractor performs the cleanup; PCA confirms it was done correctly.
A typical Phase I ESA from kickoff to delivered report is 10 to 15 business days, assuming reasonable cooperation from the property owner and access to the site within the first week. Lender-driven engagements with established protocols often close faster; engagements requiring extensive historical records research, multi-parcel coverage, or remote site access can run longer. Phase II investigations typically add another 3 to 6 weeks, governed primarily by drilling crew scheduling and laboratory turnaround.
PCA scopes each engagement individually based on property type, transaction calendar, and lender requirements. Pricing is engagement-specific; PCA does not publish a rate sheet.
PCA has performed environmental due diligence for commercial real estate transactions nationwide since 1997. Phase I and Phase II reports are signed by qualified Environmental Professionals meeting the definition in 40 CFR Part 312.10(b), with the academic credentials, professional licensing, and direct relevant experience the AAI rule requires. PCA’s report format is recognized by major commercial real estate lenders and institutional investors. PCA operates from a single national operations center in Brea, California, which means a consistent quality control standard across every engagement regardless of the property’s location.
Does a Phase I ESA include soil or groundwater sampling?
No. Sampling is a Phase II activity. A Phase I ESA is a non-intrusive inquiry that identifies whether sampling is warranted. If your lender or counterparty is asking for “Phase I sampling,” they are likely conflating the two scopes — PCA can help clarify what they actually need before kickoff.
How long is a Phase I ESA valid?
Under the AAI rule, the Phase I inquiry components must be completed within one year prior to the date of property acquisition for the CERCLA defenses to apply, with several components requiring update if completed more than 180 days before acquisition. PCA’s reports include the relevant currency dates so users can determine where the report sits within those AAI windows.
What if the Phase I identifies a Recognized Environmental Condition?
The recommendation is typically a Phase II investigation to determine whether the REC has resulted in contamination above regulatory screening levels. Identifying an REC does not mean the property is contaminated or unusable — it means further inquiry is needed before the buyer can make a fully informed decision. PCA’s report will explain what was identified and what the next-step investigation would entail.
Do you handle remediation if contamination is confirmed?
Not directly. Remediation is a separately licensed discipline performed by environmental contractors and represents a different risk profile than the assessment work PCA delivers. PCA provides third-party remediation oversight — reviewing the contractor’s work plan, verifying cleanup through confirmation sampling, and supporting closure documentation — which preserves an independent verification chain that lenders and regulators value. PCA does not bid or perform the remediation work itself.
Can PCA work on engagements outside the standard commercial property types?
Yes. PCA’s environmental practice covers conventional commercial real estate, large-format industrial, healthcare, hospitality, multifamily, mixed-use, and land. For specialized scopes — landfills, mining-impacted sites, agricultural conversions, or other non-standard property types — see PCA’s specialty consulting service.
For general questions about working with PCA — pricing, report timelines, vendor selection — see PCA’s main FAQ.
Ready to scope a Phase I or Phase II ESA? Submit your project scope for a custom engagement quote. PCA responds to quote requests within one business day.