Phase I & Phase II Environmental Assessments
Phase I Environmental Site Assessment (ESA)
The Phase I Environmental Site Assessment (ESA) is conducted in accordance with ASTM E1527-21 and the EPA’s All Appropriate Inquiries (AAI) Rule.
A Phase I ESA allows a purchaser to evaluate past use, environmental conditions, and potential hazardous substances at a property.
With this knowledge, a purchaser can:
Better assess financial risk posed by contamination
Avoid full or partial liability
Require cleanup prior to sale
Negotiate reduced property value
Phase I Activities May Include:
Site Visit
Interviews with Current/Previous Property Owners
Municipal and PADEP File Review
Regulatory Database Search and Interpretation
Sanborn Fire Insurance Map Search
Review of Historical Aerial Photos, Topographic Maps, and City Directories
Chain of Ownership / Deed Search
Lien and Activity Use Limitation Search
Vapor Encroachment Screening
Comprehensive Report Preparation with Photographic Log
Utility Clearing / Soft Dig / Vacuum Excavation / Air-Knife / Hydro-Excavation
MEA provides professional opinions regarding Recognized Environmental Conditions (RECs) and recommendations for additional work with cost estimates if necessary.
Phase II Environmental Site Investigation
A Phase II Investigation evaluates potential impacts identified in a Phase I ESA.
It typically includes soil and/or groundwater sampling, laboratory analysis, mapping, and interpretation of analytical results.
If contamination is encountered, MEA recommends and can execute remedial activities.
Transaction Screen Environmental Assessment (TSEA)
A Transaction Screen Environmental Assessment (TSEA) is a limited environmental property assessment used to determine risk during a property transaction.
A TSEA is less comprehensive than a Phase I ESA and adheres to ASTM E1527-14.
