Environmental Services

 

Purpose of PSI (Preliminary Site Investigation) Stage IA

(PSI) Stage I is a systematic process, in accordance with the BC Waste Management Act and associated regulations, by which an assessor seeks to determine whether a particular property is or may be subject to actual or potential contamination.

A PSI Stage I does not involve the investigative procedures of sampling, analyzing and measuring unless enhancements are agreed upon by the Client and Assessor at which point the title of the report will carry the word PSI Stage II.

Purpose of PSI Stage II

The purpose of a PSI Stage II is to establish the presence or absence of contamination on a site. A PSI Stage II may follow a PSI Stage I or it may be conducted based on existing information that suggests potential contamination.

Samples of appropriate environmental media (ie. air, soil, water, plants and/or animals) are systematically collected and analyzed for suspected contaminants in a laboratory. The contaminant concentrations determined in the laboratory analysis are compared with standards that indicate acceptable levels of contaminants in various situations.

These standards have been established by government regulatory bodies to protect human health and the environment. Should the analytical results indicate unacceptable levels of contaminants, British’s Columbia Waste Management Act provides the framework for the remediation of the site.