Phase 1 Environmental Site Assessment in Phoenix, AZ
Compare quotes from environmental professionals who write ASTM E1527-21 Phase 1 ESA reports in Phoenix, AZ. 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 Arizona
Properties in Phoenix, AZ fall under Arizona Department of Environmental Quality along with the federal databases every Phase 1 covers.
The Department of Environmental Quality keeps Arizona's cleanup, tank, and dry well records, and the state's version of Superfund is the Water Quality Assurance Revolving Fund program. Groundwater plumes are the main story in Phoenix and Tucson. Several large chlorinated solvent plumes run for miles under the metro areas, and a consultant will check whether a property sits over one of them before doing anything else. Dry wells, which are stormwater injection wells common on Arizona parking lots, get their own registry and their own line in the report.
The Arizona lists a consultant checks for a property in Phoenix, AZ:
- WQARF Registry. Sites listed under the Water Quality Assurance Revolving Fund program, including the large groundwater plumes under Phoenix and Tucson.
- Underground storage tank and leaking tank databases. Registered tanks and release cases, along with State Assurance Fund claims.
- Voluntary Remediation Program list. Sites enrolled in the program and No Further Action determinations.
- Dry well registration. Registered drainage wells that can move surface contamination directly into groundwater.
- Superfund site boundaries. The Motorola 52nd Street, West Van Buren, Phoenix-Goodyear Airport, and Tucson International Airport plumes, among others.
Common Sources of Contamination on Phoenix, AZ Properties
The industries that shaped Phoenix include aerospace manufacturing, semiconductor fabrication, military base operations, copper and mineral mining, agriculture and irrigation, dry cleaning, and landfill and waste disposal. Consultants who work here pay close attention to Motorola 52nd Street Superfund plume area, Phoenix-Goodyear Airport and former Litchfield Naval Air Facility, Maryvale groundwater contamination zone, South Phoenix industrial corridor along Lower Buckeye Road, Luke Air Force Base area, and Indian School Road dry cleaner contamination corridor, where past land use raises the odds of a finding.
Semiconductor and aerospace manufacturing in the Phoenix and Tucson areas released trichloroethylene and other solvents into groundwater from the 1950s onward, and those plumes now underlie thousands of parcels. Copper mining shaped the southern and eastern parts of the state, and tailings and smelter sites sit near towns like Globe, Miami, and Bisbee. Cotton and citrus farming across the Salt River Valley used pesticides on land that became subdivisions and shopping centers. Gas stations, auto shops, and dry cleaners fill in the usual findings on commercial corridors.
Who Orders a Phase 1 ESA in Phoenix
- 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
Phoenix Property Types That Usually Need a Phase 1 ESA
- Former aerospace and defense manufacturing facilities
- Dry cleaning operations and solvent-using businesses
- Former gas stations and auto service centers
- Agricultural land converting to commercial or residential use
- Former military airfield and training facility properties
- Landfill-adjacent commercial redevelopment sites
Arizona Cleanup Programs and Buyer Liability Protection
ADEQ's Voluntary Remediation Program provides oversight and a No Further Action determination for owners who clean up on their own initiative. Arizona's Prospective Purchaser Agreement program lets a buyer of a WQARF site negotiate a release from state liability before closing. Declarations of Environmental Use Restriction get recorded when cleanup depends on limiting land use, and a Phase 1 checks the county recorder for them.
How Much Does a Phase 1 ESA Cost in Phoenix, AZ?
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. Arizona pricing sits in the middle of the national range. Properties over a known groundwater plume cost slightly more because the consultant has to evaluate vapor intrusion potential.
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 Phoenix, AZ
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 Phoenix, AZ 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 Phoenix, AZ Buyers
How long does a Phase 1 ESA take in Phoenix, AZ?
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 Arizona?
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 Arizona?
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 Arizona. It is strongly recommended for any commercial, industrial, or redevelopment transaction to identify potential environmental liabilities.
Guides to Environmental Site Assessments
Environmental Site Assessments Across Arizona
See the Arizona Phase 1 ESA page for statewide records, programs, and pricing.
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