Site Assessment & Characterization
ASTM Phase I Environmental Site Assessments (ESAs)
The Phase I ESA is the industry standard for evaluating the environmental liability associated with commercial real estate. The ASTM E1527-13 standard has been approved by the Environmental Protection Agency (EPA) as meeting the requirements of the All Appropriate Inquiries (AAI) Rule. The purpose of this assessment tool is to identify recognized environmental conditions (RECs), Historical RECs and Controlled RECs. Read more about the ASTM E1527-13 standard here.
Phase I ESAs are performed at properties such as gas stations/repair garages, dry cleaning businesses, manufacturing facilities, industrial properties, and are required when federal grant monies may be used
during site development.
A typical Phase I ESA involves:
- A thorough inspection of the subject site to gauge the likelihood of a release from petroleum
products and/or hazardous waste materials
- State file review to ascertain the regulatory history of the site
- Perusal of aerial photographs and historical maps to become familiar with past uses of the site
- Review of published data on site geology and hydrogeology
- Preparation of a comprehensive report outlining the environmental liabilities associated with
If an REC is identified at a site, ECS performs a Phase II ESA to satisfy the client’s due diligence needs.
- Installation of test borings and groundwater monitoring wells to evaluate subsurface conditions
- Collection and analysis of soil and water samples to determine whether contamination exists
- Preparation of a comprehensive report outlining findings, recommendations, and cost estimates
for further assessment and remediation activities