Phase I Environmental Site Assessment
A Phase I Environmental Site Assessment (ESA) – also referred to a Stage 1 Preliminary Site Investigation (PSI) – is typically required as a due diligence measure in support of a real estate or financing agreement for a property. The ESA is a detail orientated report that analyses the potential for actual or potential contamination of a site or property, and the potential environmental liabilities associated with the identified contamination if present.
The process of compiling an ESA involves the review of current and past land uses (includes a site visit), record searches, personal interviews and an analysis of the results of record searches including the Ministry of Environment’s Site Registry for contaminated sites. All gathered information is compiled and used to assess the potential of actual or potential contamination on a site, and if found the impact of the identified contamination.