PRELIMINARY SITE INVESTIGATION (PSI)
A STAGE 1 PSI includes:
• a review of site historical use and records, including a search of the Site
Registry, to determine current and past activities or uses, accidents and
spills, and practices and management relating to potential contamination at the
site and adjacent sites;
• one or more site reconnaissance visits with visual inspection of buildings,
property, equipment, land, surface water, and biota for indicators or presence
of contamination;
• interviews with current or former owners, occupants, neighbours, managers,
employees, and government officials who can, with reasonable attempts, be
contacted respecting information on activities that may have caused
contamination;
• any information as to which substances on the site may cause contamination;
and
A STAGE 2 PSI enables the general location
and degree of any contamination to be determined.
This stage includes:
• sampling of relevant environmental media;
• laboratory or field instrumental analysis of sampled and selected
environmental media for substances that may cause or threaten to
cause contamination;
• other intrusive or non-intrusive methods of investigating subsurface
conditions;
• assessment of substance concentrations relative to the standards in the
Hazardous Waste and Contaminated Sites Regulations;
and activities described in any protocols
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