Phase 1 Environmental Site Assessment in Illinois
Compare quotes from environmental professionals who write ASTM E1527-21 Phase 1 ESA reports in Illinois. Most reports are delivered in two to three weeks, and rush options are available.
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What Is a Phase 1 Environmental Site Assessment?
A Phase 1 Environmental Site Assessment, written as Phase I ESA in most reports, is a records review and site inspection that looks for signs a property has been contaminated by hazardous substances or petroleum. The consultant follows ASTM Standard E1527-21. Nobody drills or samples anything during a Phase 1.
The work covers historical aerial photos, fire insurance maps, city directories, regulatory database searches, a walk of the property, and interviews with the owner, the occupants, and anyone else who knows the site's history. The report ends with a finding of whether any Recognized Environmental Conditions exist.
Lenders ask for a Phase 1 before they fund a commercial purchase or refinance. SBA 7(a) and 504 loans require environmental due diligence on most real estate collateral. Buyers order one on their own because a Phase 1 completed before closing is what qualifies them for the innocent landowner and bona fide prospective purchaser defenses under CERCLA.
What a Phase 1 ESA Reviews in Illinois
The state records for a Illinois Phase 1 come from Illinois Environmental Protection Agency, searched alongside the federal databases every Phase 1 covers.
Illinois divides its records in a way that surprises out-of-state buyers. The Illinois EPA handles cleanup programs and leaking tank incidents, while the Office of the State Fire Marshal registers the tanks themselves. A consultant checks both, along with the Illinois Emergency Management Agency spill log and, in Chicago, the city's own environmental permit records. No Further Remediation letters from the state get recorded against the deed, so a title search can surface a past cleanup that the database lists under a different address.
The Illinois lists a consultant checks for a property in Illinois:
- Site Remediation Program records. Voluntary cleanup enrollments and No Further Remediation letters, which are recorded in county land records.
- LUST incident database. Leaking underground storage tank incidents tracked by Illinois EPA, with status through closure.
- State Fire Marshal tank registrations. Registered and removed underground storage tanks, including facility and owner history.
- Illinois Emergency Management Agency spill reports. Reported releases of hazardous materials and petroleum.
- Landfill and solid waste facility lists. Permitted and closed landfills, plus the historic dump inventory.
- Illinois State Geological Survey coal mine maps. Mined-out areas in the Illinois Basin, used to evaluate subsidence and mine gas on southern and central Illinois property.
Common Sources of Contamination on Illinois Properties
Chicago grew on steel, rail, stockyards, and tanneries, and the South Side, the Calumet region, and the industrial corridors along the river carry that history in the soil. Historic fill under older commercial parcels is common. Outside the city the pattern changes to grain elevators, agricultural chemical dealers, and anhydrous ammonia storage in nearly every farm town, along with coal mining across the central and southern counties. Dry cleaners and gas stations are the routine findings on a suburban strip center, and the state's Drycleaner Environmental Response Trust Fund exists because solvent releases are so widespread.
Who Orders a Phase 1 ESA in Illinois
- Buyers of commercial and industrial property doing due diligence before closing
- Borrowers on SBA 504 and SBA 7(a) loans secured by real estate
- Banks and credit unions underwriting commercial mortgages
- Developers acquiring land or buildings for redevelopment
- Attorneys handling purchase agreements and lease negotiations
- Owners refinancing a commercial building
- Investors buying retail, warehouse, office, or multifamily sites
Illinois Cleanup Programs and Buyer Liability Protection
The Site Remediation Program lets an owner or buyer clean a site voluntarily under Illinois EPA oversight and receive a No Further Remediation letter. That letter is recorded on title and gives the owner and later purchasers a release from further state action for the contamination it covers. Cleanup objectives come from the Tiered Approach to Corrective Action Objectives, and a commercial objective with an engineered barrier is a common outcome in Chicago redevelopment.
How Much Does a Phase 1 ESA Cost in Illinois?
Across the country a Phase 1 ESA runs from $1,500 to $6,000, and a plain commercial building on a single parcel lands near the low end of that range. Chicago and the collar counties price near the national middle, with some upward pressure from the volume of records in older neighborhoods. Downstate pricing is lower, though mine map research adds cost in the coal counties.
What moves the price on a given property:
| Factor | Effect on price |
|---|---|
| Acreage and number of parcels | More ground to walk and more addresses to research |
| Current use | Industrial, automotive, and dry cleaning sites take longer to document |
| Historical use | A former gas station or manufacturing plant means more agency files to pull |
| Turnaround | A rush report in five to ten business days adds a premium |
| Age of the property | Older sites have more historical sources to review |
| Lender scope | Some banks and the SBA add deliverables beyond the ASTM standard |
A quote tied to the actual address is the only way to know the number for your property. Read the Phase 1 ESA cost guide for a closer look at pricing.
Phase 2 Environmental Site Assessment in Illinois
When a Phase 1 finds a Recognized Environmental Condition, the next step is a Phase 2 ESA. A Phase 2 puts soil borings, groundwater monitoring wells, or soil vapor probes in the ground and sends the samples to a lab. The scope depends on what the Phase 1 found, so a Phase 2 in Illinois can cost anywhere from a few thousand dollars for a handful of borings to well above $30,000 for a site with a plume.
The consultants in our network handle both phases. Ask for a Phase 2 quote when you submit your details, or read the Phase 2 ESA guide and the Phase 2 cost guide first.
Phase 1 ESA Questions From Illinois Buyers
How long does a Phase 1 ESA take in Illinois?
A standard Phase 1 ESA typically takes 2-4 weeks from start to delivery of the final report. Rush turnaround options are available, often within 5-10 business days, for an additional fee.
Who needs a Phase 1 Environmental Site Assessment?
Buyers, lenders, developers, and investors involved in commercial real estate transactions. SBA 7(a) and 504 loans typically require environmental due diligence, including a Phase 1 ESA. Banks and lenders typically require one for commercial property financing. It's also recommended when purchasing former industrial or commercial properties.
Do SBA loans require a Phase 1 ESA in Illinois?
SBA 7(a) and 504 loans typically require environmental due diligence for commercial property purchases, which usually includes a Phase 1 ESA. The report must comply with ASTM E1527-21 and be completed by a qualified environmental professional. Requirements can vary based on the property type, historical use, and lender policy.
What ASTM standard governs Phase 1 ESAs?
ASTM E1527-21 is the current standard for Phase 1 Environmental Site Assessments. It replaced E1527-13 and defines the scope, methodology, and reporting requirements. Compliance with this standard is necessary to qualify for the CERCLA innocent landowner defense.
Does a Phase 1 ESA include soil or groundwater testing?
No. A Phase 1 ESA is a non-invasive review of records, regulatory databases, historical sources, and a visual site inspection. It does not include physical sampling. If potential contamination is identified, a Phase 2 ESA with soil borings or groundwater monitoring may be recommended.
What happens if the report finds a Recognized Environmental Condition?
If the Phase 1 ESA identifies recognized environmental conditions (RECs), the next step is typically a Phase 2 ESA, which involves actual sampling and laboratory analysis of soil, groundwater, or air to confirm the presence and extent of contamination.
Can a Phase 1 ESA protect buyers from environmental liability?
Yes. A Phase 1 ESA conducted under ASTM E1527-21 helps establish the "innocent landowner" defense under CERCLA. This can protect buyers from liability for pre-existing contamination they were not aware of at the time of purchase.
What's the difference between Phase 1 and Phase 2 ESAs?
A Phase 1 ESA is a non-invasive investigation that reviews records and inspects the site visually. A Phase 2 ESA involves physical sampling (soil borings, groundwater monitoring wells, etc.) and laboratory analysis. Phase 2 is only needed when Phase 1 identifies potential contamination concerns.
Is a Phase 1 ESA required before buying commercial property in Illinois?
While not legally mandated for all purchases, most lenders, banks, and SBA lenders typically require a Phase 1 ESA before financing commercial real estate in Illinois. It is strongly recommended for any commercial, industrial, or redevelopment transaction to identify potential environmental liabilities.
Guides to Environmental Site Assessments
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