The Phase I Environmental Site Assessment (ESA) uses existing information to help a community understand the property conditions by examining current and historical uses of the site and potential threats to human health or the environment. The assessment involves reviewing records of past and current land uses through property photographs, maps, and visual site inspections. We also review government databases to examine ownership and environmental records related to managing or disposing of hazardous substances and petroleum products. Lastly, we interview current and past property owners, and neighbors to find out what they know about site operations involving wastes and chemicals.

Here is another reason Phase I Environmental Site Assessment is need:

It also helps determine who is potentially liable for environmental contamination found on a property. Performing a Phase I Environmental Site Assessment prior to owning a property is often equivalent to conducting All Appropriate Inquiries (AAI), a necessary practice for obtaining liability protection under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) for prior contamination.

Phase II Environmental Site Assessment

Phase II Environmental Site Assessment (ESA) is recommended if the Phase I Environmental Site Assessment results reveal known or potential contamination found on the property, sometimes called recognized environmental conditions (RECs). Our environmental professionals develop a sampling plan to evaluate the potential presence of contamination from hazardous substances and petroleum on the property and determines the sources and exposures. Our professionals may also consult with state and tribal brownfield programs regarding required assessment activities.