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ESA-1 Most requested

Phase I Environmental Site Assessment

ASTM E1527-21 all appropriate inquiry for CERCLA liability protection.

At a glance

Base price
$2,800 per property
Typical time on site
15 – 20 business days
Governing standard
ASTM E1527-21 / 40 CFR Part 312 (AAI)
Inspection scopes
1 scope · 6 checkpoints
Category
Environmental & Indoor Air Quality

What this inspection covers

The standard environmental due diligence report for commercial real estate. Identifies Recognized Environmental Conditions (RECs) through site reconnaissance, historical records review, regulatory database search, and interviews. Satisfies EPA All Appropriate Inquiries (40 CFR Part 312), preserving the innocent landowner and bona fide prospective purchaser defenses under CERCLA.

Key inspection points

  • Site reconnaissance and adjoining property survey
  • Historical use research back to first developed use
  • Federal, state, tribal and local database review
  • User questionnaire, title and lien search coordination
  • Interviews with owners, occupants and officials
  • Vapour encroachment screening

How the scope is structured

Once a proposal is approved, these scopes are generated into your project automatically. Each engineer works and signs off one scope at a time, and every checkpoint below becomes a recorded finding with a condition, a severity and photographic evidence.

01

Phase I Environmental Site Assessment — Standard Scope

6 checkpoints

  • Site reconnaissance and adjoining property survey
  • Historical use research back to first developed use
  • Federal, state, tribal and local database review
  • User questionnaire, title and lien search coordination
  • Interviews with owners, occupants and officials
  • Vapour encroachment screening

Request a Phase I Environmental Site Assessment

Tell us about the property and your objective. We will return a line-item quote naming every scope, the governing standard, the deliverables and the turnaround — usually within one business day.