Expired Phase I ESA? Understanding the EPA 180-Day Update Window vs. 1-Year Hard Reset Cost

Statutory & Fee-Schedule Audit · Jurisdiction: TX

Direct Statutory & Rate Summary: Under EPA 40 CFR §312.20 and ASTM E1527-21 Section 4.6, a Phase I ESA remains valid without update for 180 days. Between Day 181 and Day 365, updating the site visit, interviews, government database pull, and lien search costs $950–$1,450 in DFW; after 365 days, CERCLA All Appropriate Inquiries protection expires completely and a brand-new Phase I ESA ($2,850 median) is mandatory.

Binding Compliance & Pricing Verification Checklist

01ASTM E1527-21 requires reporting the exact earliest component date—not the final PDF signature date—to start the 180-day clock.
02Adding a new lender's Reliance Letter within 180 days typically costs $250–$500 from the original Environmental Professional.
03Schedule Phase I field recon 45–60 days before closing to buffer construction or rate-lock extensions.

Underlying Dallas-Fort Worth, TX Benchmark Data

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Verified Public-Record BenchmarkUpdated 2026-11-11n = 5,233 records

In Dallas-Fort Worth, TX, calibrated Phase I Environmental Site Assessments (ESA) pricing has a median rate of $2,850 (25th percentile: $2,150; 75th percentile: $4,400 per ASTM E1527-21 Phase I ESA report) across 5,233 indexed public records (US EPA Envirofacts FRS Facility Registry, TCEQ PST/LPST Records & ASTM E1527-21 / 40 CFR Part 312 Standard). Applicable statutory benchmark: EPA 40 CFR Part 312 All Appropriate Inquiries (180-Day Shelf Life). Under ASTM E1527-21 and EPA 40 CFR Part 312, key Phase I ESA components (site reconnaissance, interviews, environmental lien search, government records review) expire after 180 days unless updated prior to commercial closing.

Source authority: US EPA Envirofacts FRS Facility Registry, TCEQ PST/LPST Records & ASTM E1527-21 / 40 CFR Part 312 StandardAudit a written quote →

1. Dallas-Fort Worth, TX — Phase I Environmental Site Assessments (ESA) Rate Quartiles (2026)

Phase I Environmental Site Assessments (ESA) cost quartiles and statutory fee comparison for Dallas-Fort Worth, TX versus Dallas-Fort Worth, TX baseline.
Jurisdiction / Scope	25th Percentile (Low)	Median Benchmark (p50)	75th Percentile (Complex)	Variance / Sample Size
Dallas-Fort Worth, TX Unit: per ASTM E1527-21 Phase I ESA report	$2,150	$2,850	$4,400	At Metro Median (n = 5,233)
Statutory / Regulatory Benchmark	EPA 40 CFR Part 312 All Appropriate Inquiries (180-Day Shelf Life)			Mandatory Rule

Calibration methodology: Cross-indexed against 5,233 live US EPA Envirofacts FRS regulated facilities across core DFW commercial ZIPs, TCEQ LPST databases, and SBA SOP 50 10 Environmental Professional pricing.

2. Mandatory Local Statutes, Fee Caps & Compliance Rules

Statutory fee caps, regulatory filing rules, and compliance triggers for Phase I Environmental Site Assessments (ESA) in Dallas-Fort Worth, TX.
Statute / Official Program	Type	Statutory Cap / Deadline	Binding Local Requirement
EPA 40 CFR Part 312 & ASTM E1527-21 Viability Window	COMPLIANCE MANDATE	180-Day Shelf Life (Hard 1-Year Expiry)	Site inspection, interviews, government records pull, and environmental lien search must be completed within 180 days prior to commercial property acquisition Date of Acquisition.

Verified Operator Dispatch Slip — Dallas-Fort Worth, TX

Benchmark-matched proposals from top state-licensed Phase I Environmental Site Assessments (ESA) firms. Zero lead-broker resale · 1-to-1 TCPA protected.

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3. Verified State-Licensed Operators Serving Dallas-Fort Worth, TX

Ranked by trailing 12-month verified public filings and compliance standing. Raw operator contact credentials are masked publicly to prevent automated scraping; request verified 1-to-1 dispatch above.

Top 5 state-licensed Phase I Environmental Site Assessments (ESA) operators in Dallas-Fort Worth, TX ranked by verified public records.
Metro Rank	Masked State License #	Licensing Authority	12m ASTM E1527-21 SBA/CRE Reports	Compliance / Pass Score
#1	****2910	EPA AAI / TX PG Environmental	118	99.5%
#2	****1845	EPA AAI / TX PG Environmental	104	99.0%
#3	****3302	EPA AAI / TX PG Environmental	89	98.6%
#4	****4198	EPA AAI / TX PG Environmental	76	98.0%
#5	****2674	EPA AAI / TX PG Environmental	68	97.4%

Local Statutory & Pricing FAQs — Dallas-Fort Worth, TX

How much does an ASTM E1527-21 Phase I Environmental Site Assessment cost in Dallas-Fort Worth?: Standard commercial/retail Phase I ESA reports in DFW have a median fee of $2,850 (p25: $2,150 clean office/pad site; p75: $4,400+ multi-parcel industrial corridors like 75247 Brookhollow or 75207 Stemmons with heavy historical TCEQ/RCRA records).

ASTM E1527-21 Phase I Environmental Site Assessment Cost & SBA 504/7(a) Rules in DFW (2026)Read audit →
EPA FRS Facility Density & Vapor Encroachment Risk in Dallas 75247, 75207 & Carrollton 75006Read audit →