A Phase I assessment reviews records, inspects the site, and interviews occupants to identify recognized environmental conditions. Phase II involves sampling and analysis where Phase I identifies concerns.
Phase I supports the innocent landowner and bona fide prospective purchaser defenses.
Alternative Names:
ESA, Phase I Environmental Site Assessment
Why it Matters?
All appropriate inquiry through a compliant Phase I is the predicate for CERCLA landowner liability protections, and a purchaser that skipped the assessment or used a stale one forfeits those defenses entirely. Assessments have a defined shelf life, typically one year with certain components requiring update at six months. That timing catches transactions that extended beyond the original diligence period.
Frequently Confused with
Related terms
Frequently asked questions
What liability protection does a Phase I support?
How long is an assessment valid?
