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ASTM E1527-21 / EPA All Appropriate Inquiries (40 CFR 312)

Rush Phase I Environmental Site Assessment in 3 business days

$1,895Rush price / standard scope
3business days
Get my 3-day date

The same ASTM E1527-21 Phase I, delivered 3 business days from authorization and confirmed site access, for $1,895 on a standard-scope property ($1,495 plus a $400 rush fee).

Standard delivery: 5 business days for $1,495.

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Order your Phase I ESA

$1,895 with rush / 3 business days / confirmed within 1 business hour

No payment online. No commitment until you authorize.

Rush delivery: 3 business days, $400 more.

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Rush Phase I

What a rush Phase I changes, and what it cannot.

Short answer: A rush Phase I environmental site assessment (ESA) from Compyle Environmental costs $1,895 for a standard-scope property ($1,495 plus a $400 rush fee) and is delivered in 3 business days from your authorization and confirmed site access. Apart from the fee, only the schedule changes: the ASTM E1527-21 scope, the Environmental Professional’s signature and the U.S. Small Business Administration (SBA) reliance letter match our standard 5-business-day report.

Rush and standard Phase I, side by side

Item Standard Phase I Rush Phase I
Price for a standard-scope property $1,495 $1,895 ($1,495 plus $400)
Delivery 5 business days 3 business days
Clock starts Authorization and confirmed site access Same
Standard ASTM E1527-21 and the EPA All Appropriate Inquiries (AAI) rule, 40 CFR Part 312 Same
Records and history Federal, state, tribal and local databases; historical sources back to 1940 or first developed use, whichever is earlier Same
Site visit and interviews Property and adjoining properties; owner, occupants and local agencies Same
Signature An Environmental Professional who meets 40 CFR 312.10, with the 312.21(d) declarations Same
Reliance SBA SOP 50 10 8.1 Appendix 5 reliance letter, and reliance for your lender Same

The flat price covers one parcel, up to 5 acres, up to 3 buildings and 50,000 square feet in total, and a current use that is not heavy industrial or manufacturing. Properties outside that scope get a fixed quote and a delivery date before you authorize. The full scope is on our Phase I ESA service page.

How a 3-business-day Phase I is possible, and how to check a fast one

LightBox’s May 2023 benchmark survey, to which more than 300 environmental professionals responded, put the average turnaround for an AAI-compliant Phase I on a conventional property with no non-scope issues at 16 business days. Report writing, the most time-consuming step, averaged 6.8 hours.

We read most of the gap between hours of work and weeks on the calendar as waiting, and waiting is what we shortened. We built proprietary internal technology that collects and organizes the regulatory and historical records the day an order is authorized, so the Environmental Professional (EP) reviews an organized record instead of assembling one. A qualified local field professional is booked when you authorize.

A May 2026 buyer’s guide from Moraine warns that reports promised in under 5 business days usually cut scope. Apply that test to any fast Phase I, ours included, by checking for:

  • the dates of the interviews, records review, site visit and EP declaration (ASTM E1527-21, Section 4.6.1);
  • a site plan and photographs of conditions that point to a recognized environmental condition (REC), meaning hazardous substances or petroleum products that are present, or likely present, because of a release, or present under conditions that pose a material threat of a future release (Sections 1.1.1 and 12.3);
  • findings that name any significant data gaps and the sources consulted (Section 12.5.1);
  • the EP’s reasoning for each finding, and conclusions that list every REC and significant data gap (Sections 12.6 and 12.7);
  • both declarations required by 40 CFR 312.21(d) and the EP’s qualifications.

What you need to send on day one

Our clock starts at authorization and confirmed access, and several inputs belong to the user (usually the buyer, sometimes the lender), not the consultant. Send these with your request:

  1. A site contact. Name someone who knows the property (E1527-21’s key site manager, Section 10.5.1) and can open the buildings, including areas where chemicals, fuel or waste are stored. AAI requires an on-site inspection, and a voluntary seller’s refusal of access is not an accepted reason to skip it (40 CFR 312.27(c)). A building the EP cannot enter can become a significant data gap.
  2. The user questionnaire. ASTM’s User Questionnaire (Appendix X3) is optional under the standard, but our engagement terms require it, and it gives the EP, in one document, what 40 CFR 312.22 asks of you: specialized knowledge, whether the price reflects fair market value, and commonly known information. E1527-21 asks users to share specialized knowledge before the site visit (Section 6.3).
  3. The title commitment, or a lien and AUL search. Searching for recorded environmental cleanup liens and activity and use limitations (AULs) is your task unless you hire the consultant for it (E1527-21 Section 6.2.3), and the lien search must be done within 180 days before closing (40 CFR 312.20(b)(2)). A title commitment for the purchase can serve if it is reviewed for liens and AULs (Section 6.2.1). Without one, order a lien and AUL search now, and do not count on a records vendor’s quick turnaround to cover it: LightBox’s EDR Premium Package lists 1-3 days for every component except the AUL and lien search, for which it states none.
  4. Documents you or the seller already have. Earlier Phase I or II reports, tank records, permits and agency letters (Section 10.8) can stand in for an agency file that will not arrive in time, if the EP judges them sufficient (Section 8.2.3.2).
  5. Who will rely on the report. Give your lender’s legal name and say whether the loan is SBA, so the reliance letter comes with the report.

What no firm can speed up

Government agencies work on their own clocks. When the property or an adjoining property appears on a listed database, the EP should review the agency’s file or explain in the report why not (E1527-21 Section 8.2.3.1). The EP must also try to interview at least one state or local official, such as the fire department, a health or environmental agency, or the building permit office (Section 11.5.1).

The federal deadline alone is longer than a rush schedule: a federal agency, including EPA, has 20 working days to decide on a Freedom of Information Act (FOIA) request, plus up to 10 working days in unusual circumstances, and the records can follow the decision (5 U.S.C. 552(a)(6)). State deadlines vary, and our guide to how long a Phase I takes compares several. E1527-21 itself treats a record as obtainable within reasonable time if the source provides it within 20 calendar days of a request (Section 8.1.5).

When an agency file or an official’s answer is still outstanding, E1527-21 handles it this way:

  • Your records can fill in. On-site records, records you provide, local agency records or interviews with regulators can replace the agency file if the EP finds them sufficient (Section 8.2.3.2).
  • The report names the gap. Data gaps and their significance must be identified (40 CFR 312.21(c)(2)), with significant gaps and the sources consulted listed in the findings (Section 12.5.1).
  • The EP judges whether it matters. A gap is significant only if other information or the EP’s professional experience raises a reasonable concern that it affects the opinion on whether a REC exists; the opinion must then explain how (Sections 12.5.1 and 12.6.2).
  • The attempt is recorded. An official who does not answer does not make the interview section incomplete, provided the questions were asked and recorded (Section 11.8).

If a file is still pending when the report is due, either the report is issued with the missing file documented or the delivery date moves. Our engagement terms extend the schedule day for day for denied or rescheduled access, unavailable interviewees and agency file review response times beyond our control, and the on-time guarantee covers delays within our control. If the report is issued with a significant data gap, you and your lender decide whether to close or wait for the file. A listing of the property or an adjoining property, such as a tank or cleanup record for a former gas station or dry cleaner, is what triggers a file review, so send any closure letters with the order or allow extra time.

Do you need a rush Phase I? Match the report to your closing date

If the closing date is known, ordering early usually removes the need for a rush, because the AAI time limits are measured in months, not days. Under 40 CFR 312.20, the whole inquiry must fall within one year before acquisition, and five components (interviews, lien search, government records review, site visit and EP declaration) within 180 days before it. E1527-21 measures those windows from the component dates, not the report date (Section 4.6.3). A standard report ordered 3 weeks before closing stays inside the 180-day window even if the closing slips by about 5 months, and our Phase I validity calculator works out the exact dates.

For SBA 7(a) and 504 loans, SOP 50 10 8.1 requires every environmental report to be dated within one year of the date the SBA loan number is issued, and SBA will accept for review an otherwise AAI-compliant Phase I dated within that year, notwithstanding EPA’s 180-day update rule (Section A, Chapter 5, Paragraph E.3, and Appendix 4). SBA adds that parties may still wish to comply strictly with EPA’s timeframes to avoid jeopardizing legal and regulatory protections. For most buyers that means the bona fide prospective purchaser defense under CERCLA, the federal Superfund law. A Phase I meets only one of its requirements; the defense also needs the buyer’s own inquiries and continuing obligations after purchase (42 U.S.C. 9601(40)).

Your situation What usually fits Compyle Environmental price and time
You need the report 5 or more business days after you can authorize and confirm access Standard Phase I $1,495, 5 business days
You need it in 3 or 4 business days Rush Phase I $1,895, 3 business days
You need it in under 3 business days Ask your lender and the seller to move the date: a Phase I still requires a site visit, and an inquiry finished after closing cannot support the landowner liability protections under CERCLA Our shortest Phase I schedule is 3 business days
An SBA 7(a) or 504 loan over $250,000, with no current or known prior use on SOP 50 10 8.1’s Appendix 6 list of environmentally sensitive industries SBA’s minimum is an Environmental Questionnaire plus a Records Search with Risk Assessment (RSRA) (Section A, Chapter 5, Paragraph E.4). A Phase I follows unless the RSRA rates the property low risk. An RSRA does not support the CERCLA defenses, and your lender may still require a Phase I RSRA: $695, 2 business days, or the next business day for $150 more
A Phase I whose oldest work will be under one year old at closing, but with one or more of the five components older than 180 days Phase I update $595 and 4 business days for our own reports; quoted after review for another firm’s
Another firm’s recent Phase I with all five components within 180 days before closing A reliance letter from that firm, plus your own inquiries under 40 CFR 312.20(d) That firm’s fee

An update takes 4 business days. If that would not finish before closing, order a new report on the 3-business-day rush schedule if it can still finish in time; if not, ask your lender and the seller to move the closing. Past one year from the oldest work in the inquiry, every component has to be brought current (40 CFR 312.20(a)), so expect a new report.

What other firms charge for an expedited Phase I

Few firms publish a rush fee, and 25% of the consultants who answered LightBox’s 2023 survey charge a premium for faster delivery. Among firms that do publish rush terms, as listed on each firm’s website on October 19, 2026:

Firm Standard turnaround Rush turnaround Rush fee Clock starts
A3 Environmental 3 weeks (about 12-16 business days) 2 weeks or 1 week +$500 or +$1,000 Project authorization
Geotill 2-3 weeks As few as 5-7 business days Not published Order date
Compyle Environmental 5 business days 3 business days +$400 ($1,895 in total) Authorization and confirmed site access

Aegis Environmental’s cost guide describes typical market terms rather than its own: rush in 1-2 weeks, typically at a 20-50% surcharge. Moraine’s guide says a 5-7 day rush typically adds 30-50%, that same-week emergencies can carry a 75-100% premium, and that delivery inside 3 days is rarely possible at any price. Compare where each clock starts as well as the fee. Our Phase I cost guide compares standard prices.

How to order a rush Phase I

Use the request form on this page, which is already set to rush, or order online with rush selected. We confirm the scope, price and delivery date within 1 business hour, and work begins when you authorize. Phones are answered 7am-5pm PT, Monday to Friday, and requests received after hours are answered by 8am PT the next business day. Send the day-one items with your request, so that your authorization and site access are the only steps left before the clock starts.

Sources

  1. 40 CFR Part 312, Innocent Landowners, Standards for Conducting All Appropriate Inquiries, Electronic Code of Federal Regulations (Sections 312.20, 312.21, 312.22 and 312.27), accessed October 2026
  2. ASTM E1527-21, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process, ASTM International (Sections 1.1.1, 4.6, 6.2, 6.3, 8.1.5, 8.2.3, 10.5.1, 10.8, 11.5.1, 11.8 and 12.3 to 12.7), accessed October 2026
  3. SOP 50 10 8.1, Lender and Development Company Loan Programs with Technical Policy Updates, U.S. Small Business Administration (Word file; Section A, Chapter 5, Paragraphs E.3 and E.4, and Appendices 4, 5 and 6), accessed October 2026
  4. 42 U.S.C. 9601, Definitions (CERCLA section 101), Legal Information Institute, Cornell Law School, accessed October 2026
  5. 5 U.S.C. 552, Public information; agency rules, opinions, orders, records, and proceedings, Legal Information Institute, Cornell Law School, accessed October 2026
  6. 2023 Benchmark Survey of Environmental Professionals, LightBox, accessed October 2026
  7. An inside look at the near-term forecast for the Phase I ESA market, LightBox (October 5, 2023), accessed October 2026
  8. EDR Environmental Data Packages, LightBox, accessed October 2026
  9. Phase 1 ESA, Nationwide, Lender-Accepted Reports, A3 Environmental Consultants, accessed October 2026
  10. Lenders, Geotill, accessed October 2026
  11. Phase I ESA Costs and Best Practices for 2025, Aegis Environmental, accessed October 2026
  12. Phase 1 Environmental Site Assessment Cost: A Buyer’s Guide (2026), Moraine (May 19, 2026), accessed October 2026
  13. Engagement terms, Compyle Environmental, accessed October 2026

Clear commitments.
Before work begins.

On-time guarantee

Miss the delivery date we commit to for a reason within our control, and we take $250 off, or refund the full fee if it is under $250.

Acceptance guarantee

For reports ordered to ASTM E1527-21, ASTM E1528-22 or SBA SOP 50 10 8.1, we correct the report at no charge if noncompliance causes lender or SBA rejection. If we cannot correct it, we refund that report’s fee. The engagement terms explain the exclusions.

How it works

A clear path from address to answer.

  1. Start here

    Tell us about the property

    Address, report type and timeline. Start your request online, with no payment required.

  2. 1 business hour

    Confirm your scope, price and date

    A project manager reviews the request and sends your fixed proposal. Work begins after you authorize.

  3. Records + site

    Research, site visit and review

    Records research starts when you authorize, and the site visit follows on the confirmed schedule. An Environmental Professional who meets 40 CFR 312.10 reviews the findings and signs the report.

  4. 3 business days

    Your report, ready for the next step

    Receive your report and supporting documentation. We stay available for questions from you and your lender.

Your questions

Questions about the rush Phase I.

Have a question about your property or transaction? Talk to our team.

Is a rush Phase I as thorough as a standard Phase I?

It has to meet the same requirements, and you can check. A rush report must include the full ASTM E1527-21 records review, historical research, site visit, interviews and the Environmental Professional’s declarations under 40 CFR 312.21(d). Look for the dates of the interviews, records review, site visit and declaration, a site plan and photographs, and a findings section that names any significant data gaps. Our rush and standard reports share the same scope, signature and reliance letter. Apart from the $400 fee, only the schedule changes.

When does the 3-business-day clock start?

The clock starts when you authorize the engagement and site access with a knowledgeable contact is confirmed. Under our engagement terms, denied or rescheduled access, unavailable interviewees and agency file review response times beyond our control extend the schedule day for day, and the on-time guarantee covers delays within our control. Sending the site contact, the user questionnaire and any prior reports with your request leaves your authorization and access as the only steps before the clock starts.

What can delay a rush Phase I that no firm controls?

Mostly government agencies. When the property or an adjoining property appears on a listed government database, ASTM E1527-21 calls for a review of the agency’s file, and agencies work on their own legal clocks, such as 20 working days to decide on a federal Freedom of Information Act request. Under our engagement terms, a pending file can extend the delivery date day for day. The Environmental Professional can also rely on other records the standard allows, or report a data gap and say whether it is significant.

Can I use the seller’s Phase I instead of ordering a rush report?

Sometimes. Under 40 CFR 312.20 you can use a report prepared for someone else if it meets the rule, the whole inquiry is within one year before closing, the five time-sensitive components are within 180 days before it, and you make your own inquiries on specialized knowledge, purchase price and commonly known information. An SBA loan also needs an Appendix 5 reliance letter from the Environmental Professional who performed or supervised the work. Components more than 180 days old at closing need an update under EPA’s All Appropriate Inquiries rule.

What if the seller will not allow access for the site visit?

A seller’s refusal does not excuse the site visit. Under 40 CFR 312.27(c), the on-site inspection may be skipped only in an unusual circumstance, after good-faith efforts to get access, and the mere refusal of a voluntary seller to provide access is not one. Our 3-business-day clock starts when access with a knowledgeable contact is confirmed, so settle access first. Check what inspection rights your purchase agreement gives you, and ask your attorney if the seller still refuses.

Move your transaction forward.

Scope, price and delivery date confirmed before you authorize. No payment online.