Phase One Environmental Site Assessment (Phase I ESA)
A Phase I Environmental Site Assessment (ESA) is the systematic process by which a Site Assessor seeks to determine whether a property contains or may potentially contain contamination. A Phase I ESA does not normally involve significant intrusive procedures such as sampling. Phase I ESA’s may be used to make informed decisions about property transactions, establish baseline environmental conditions, assist in meeting regulatory requirements, and as an initial step in a site clean-up. Phase I ESA’s may assist in reducing uncertainty about potential environmental liabilities and may be a basis for further investigation of the property. The Phase 1 study typically involves no intrusive testing and relies on background (historical) data plus visual inspections of the Property. If the Phase I ESA determines that there is a significant potential for contamination, a Phase II Study is typically Recommended. There are two governing bodies that cover Phase I ESA’s in Ontario. The Ministry of Environment sets out specific tasks that need to be completed as part of a Phase I ESA in order to obtain a Record of Site Condition (RSC) for a property. For purposes other than filing a RSC (e.g. real estate transaction, due diligence, etc.), the Canadian Standards Association (CSA) has published less stringent standards for conducting a Phase I ESA. For more information or to request a no-obligation quote, please contact us.