Phase I ESA · Environmental Site Assessment
A desktop and walkover review of a site's environmental history to flag contamination risk before purchase.
Current numbers
$2,200–4,000Phase I ESA cost per site (ASTM E1527-21); ~2–3 weeks to report; higher for industrial brownfields
$2k–$5kPhase I ESA per ASTM E1527-21 (higher end for industrial/brownfield histories)