Phase I Environmental Site Assessment
ASTM E1527-21 · AAI-Compliant Due Diligence
ASTM E1527-21 Phase I Environmental Site Assessments that satisfy All Appropriate Inquiries and hold up with lenders, counsel, and agencies. Records review, site reconnaissance, interviews, and a defensible REC determination.
- 100% lender approval on Phase I ESAs
- 1-week priority Phase I turnaround
- Fixed-fee, same-day quotes
Free scoping call — fixed-fee quote with the scope locked before we start.
How a Phase I ESA runs
AAI-compliant from authorization to a lender-accepted report.
- 01
Scope & kickoff
Same-business-day scope, fee range and delivery date.
Request a scope - 02
Records review
Historic aerials, Sanborns, agency databases, interviews.
See what's included - 03
Site reconnaissance
On site within 72 hours of authorization.
When it applies - 04
Report & RECs
Clear REC findings, no hedging, delivered on the promised date.
Read the FAQs - 05
If RECs are found
Step up to subsurface sampling to quantify the exposure.
Phase II ESA - 06
Start the engagement
Send the site details — we scope it and price it.
Start the engagement
What's Included in an Envicon Phase I ESA Engagement
Historical Records & Regulatory Database Review
Sanborn maps, aerial photography, city directories, topographic maps, and a full federal/state/tribal database radius search with data-gap documentation.
Site Reconnaissance & Interviews
Walk-through of the subject property and adjoining land uses, plus owner, occupant, and local-agency interviews performed by the Environmental Professional of record.
REC / HREC / CREC Determination
Clear identification and classification of recognized environmental conditions with the reasoning that supports each finding — not a hedge-everything report.
Phase II Scoping Recommendations
Where RECs are identified, a scoped and budgeted subsurface investigation path so you can price the next step before you close.
When You Need a Phase I ESA
- Acquiring or refinancing commercial or industrial property
- Lender or SBA loan condition prior to closing
- Establishing CERCLA landowner liability protections
- Leasing an industrial site with unknown prior operations
- Portfolio due diligence across multiple assets
- A prior Phase I is more than 180 days old
Need Phase I ESA on a deadline?
Tell us the site and the driver and we'll come back with a Phase I Environmental Site Assessment scope, a price range, and a delivery date — usually the same business day.
Lenders & transaction teams
Closing a deal that needs Phase I Environmental Site Assessment?
Tell us where you sit in the transaction and when it closes. We route your request straight to the team that handles Phase I Environmental Site Assessment and come back with a fixed-fee scope and a schedule built around your closing date.
- Lender-ready, ASTM-conformant deliverables
- Scope and fee back within one business day
- Rush scheduling for closings inside two weeks
Prefer to talk it through? (917) 764-2171
Pairs Naturally With
Phase II ESA
Subsurface sampling when the Phase I identifies a REC that must be resolved before closing.
Explore service
Vapor Intrusion Assessment
Soil-gas and sub-slab evaluation where chlorinated solvent or petroleum RECs are present.
Explore service
Property Condition Report
ASTM E2018 building condition assessment bundled with due-diligence deliverables.
Explore servicePhase I ESA Past Performance
Representative projects from our NY/NJ portfolio.
Manhattan Commercial Portfolio Assessment
Comprehensive Phase I ESA portfolio review for 12 commercial properties in Manhattan with tight acquisition timeline.
View Case Study
Jersey City Mixed-Use Brownfield Redevelopment
Complete environmental assessment and remediation of a former industrial site converted to luxury residential development.
View Case Study
Riverside Park South – Phase 6
Final phase of a major waterfront park development on Manhattan's Upper West Side, transforming a former rail yard into public recreational facilities including a multi-use sports field, basketball courts, pedestrian pathways, and landscaped open space.
View Case StudyEnvironmental Due Diligence
Choose Your Level of Protection
Service comparison — not a formal proposalFour levels of due-diligence coverage for NY and NJ property transactions — from a fast desktop read to a pre-closing subsurface investigation. Each level buys you a different amount of liability protection.
Protection: Entry
Desktop Review
Protection strength 1 of 4 — Entry.A fast go/no-go read before you commit. No field visit, and it does not meet the ASTM standard.
from $850
flat fee
Draft in 3-5 business days
Protection: Standard
Phase I ESA
Protection strength 2 of 4 — Standard.The standard. Meets ASTM E1527-21 with a site visit and a report signed by an Environmental Professional.
from $2,200
lump sum
Draft in 2-3 weeks
Protection: Full
Phase I + Transfer Screen + Lien Search
Protection strength 3 of 4 — Full.Full Phase I, the state transfer-trigger answer you need before closing, and a hidden-lien check.
from $3,850
lump sum
Draft in 2-3 weeks
See what Phase I + Transfer Screen + Lien Search coversProtection: Maximum
All-In
Protection strength 4 of 4 — Maximum.Everything above, plus a limited Phase II before you close. Phase II scope is set by what the Phase I finds.
from $9,850
Phase II priced on findings
Draft in 3-4 weeks
See what All-In coversNot sure which level you need?
Get a tailored recommendation for your deal.
Tell us the level you're weighing and where to send it. An Environmental Professional reviews your situation and emails back whether that scope actually covers your liability — or whether you're buying more (or less) than you need. No obligation.
Every property prices differently.
These are starting points. Acreage, prior use, region and how fast you need it all move the number. The Cost Estimator gives you a range built around your property, your service and your closing date — in under two minutes, no obligation.
Compare the levels side by side
Select a level to highlight it and flag what that upgrade adds. Every line links to the service that delivers it.
| What's included | Recommended | |||
|---|---|---|---|---|
| The Read | ||||
| Go / no-go read on the property | Included | Included | Included | Included |
| Historical records reviewAerials, Sanborn maps, city directories, topographic maps | Included | Included | Included | Included |
| State agency file and case reviewNJDEP Data Miner, NYSDEC and NYC agency records | Light coveragelight | Included | Included | Included |
| Environmental database (EDR) radius report | Not included | Included | Included | Included |
| The Standard | ||||
| Field site visit and reconnaissance | Not included | Included | Included | Included |
| Meets ASTM E1527-21 (All Appropriate Inquiries) | Not included | Included | Included | Included |
| State site-investigation screen where requiredNJ Preliminary Assessment under the Spill Act; NY equivalents | Not included | Included | Included | Included |
| PFAS records-based screening | Not included | Included | Included | Included |
| Report signed by a qualified Environmental Professional | Not included | Included | Included | Included |
| The Protection | ||||
| Innocent-purchaser / AAI liability protection | Not included | Included | Included | Included |
| 180-day reliance window (40 CFR Part 312) | Not included | Included | Included | Included |
| Transfer-trigger applicability memoNJ ISRA NAICS and waiver screen; NY (E) Designation and BCP screen | Not included | Not included | Included | Included |
| AUL and environmental lien search | Available as an add-onadd-on | Available as an add-onadd-on | Included | Included |
| Limited Phase II before closing | Not included | Not included | Not included | Scoped on findingsscoped on findings |
| Turnaround | ||||
| Draft in your hands, from confirmed site access | 3-5 business days | 2-3 weeks | 2-3 weeks | 3-4 weeks |
Phase I ESA
from $2,200 · draft in 2-3 weeks
- Included: Go / no-go read on the property
- Included: Historical records review
- Included: State agency file and case review
- Included: Environmental database (EDR) radius reportNew here
- Included: Field site visit and reconnaissanceNew here
- Included: Meets ASTM E1527-21 (All Appropriate Inquiries)New here
- Included: State site-investigation screen where requiredNew here
- Included: PFAS records-based screeningNew here
- Included: Report signed by a qualified Environmental ProfessionalNew here
- Included: Innocent-purchaser / AAI liability protectionNew here
- Included: 180-day reliance window (40 CFR Part 312)New here
- Not included: Transfer-trigger applicability memo
- Available as an add-on: AUL and environmental lien search — add-on
- Not included: Limited Phase II before closing
Starting prices are floors for a typical NY/NJ commercial property and are not a quote. A Desktop Review does not meet ASTM E1527-21 and confers no All Appropriate Inquiries protection. Additional scopes are provided for information only and are not initiated without separate written authorization.
Service inquiry form
Request a Phase I ESA Quote
Send us the address, transaction date, and lender requirements. We'll return a fixed fee and a delivery date within 2 business hours.
Phase I ESA FAQs
Common questions from buyers, lenders, and counsel scoping environmental due diligence.
Ready to move on Phase I ESA?
Send us the site details and we'll scope it, price it, and tell you honestly whether you need this work at all.
Related Environmental Assessment Services
Projects rarely need one service in isolation. These are the scopes most often paired with this one.
Asbestos & Lead Paint Survey
Certified pre-demolition and pre-renovation asbestos and lead paint surveys for NYC and NJ properties.
Learn moreVapor Intrusion Assessment
Sub-slab, indoor air, and vapor mitigation design per NJDEP and NYSDEC vapor intrusion guidance.
Learn more
UST Closure & Tank Removal
Underground storage tank removal, closure-in-place, and post-closure remediation for NYC and NJ.
Learn more
PFAS Assessment & Advisory
PFAS due diligence, sampling, and regulatory advisory for NJ and NY properties.
Learn more
Groundwater Investigation & Monitoring
Monitoring well installation, aquifer testing, and long-term groundwater sampling programs.
Learn more
Ground Penetrating Radar (GPR) Survey
Non-destructive subsurface utility, tank, and structural GPR investigations.
Learn moreServices That Work Alongside Phase I Environmental Site Assessment
Scopes our clients most often add to keep one schedule, one regulator conversation, and one point of accountability.
Phase II Environmental Site Assessment
Subsurface investigation of soil, groundwater, and soil gas to NJDEP and NYSDEC protocols following a Phase I REC.
Learn more
NJ LSRP Services
Licensed Site Remediation Professional services for NJDEP-regulated site closure.
Learn moreProperty Condition Report (PCR)
Standard PCRs, portfolio PCRs, and combined PCR + Phase I ESA bundles.
Learn morePhase I ESA Projects in the NY/NJ Metro
Case studies matched to this scope by the services delivered, the site conditions, and the market the work was performed in.
View all case studies
Industries That Rely on Phase I Environmental Site Assessment
See how teams across these sectors integrate phase i environmental site assessment into their projects, with regulator-ready deliverables and predictable timelines.
Developers
We understand your timeline pressures. Get Phase I ESAs that pass lender scrutiny the first time, with 1-week turnaround when you need it.
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Lenders
Protect your portfolio with lender-compliant environmental assessments. We deliver Phase I ESAs that meet SBA, FDIC, and institutional requirements, on your timeline.
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Law Firms
We provide environmental law firms with the technical analysis, expert opinions, and litigation support needed to build winning arguments.
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Institutional
Hospitals, universities, and nonprofits face unique environmental challenges. We help you protect your community while managing complex property portfolios.
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Industrial
Whether you're acquiring, developing, or operating industrial facilities, we provide the environmental expertise to protect your investment.
Explore industryPhase I Environmental Site Assessment Across the NY/NJ Metro Area
Licensed teams working locally — pick your market for regional regulators, turnaround times, and recent project work.
