Environmental Science

Environmental Site Assessment (ESA) & Preliminary Site Investigation (PSI):

Environmental Site Assessments (ESAs) and Preliminary Site Investigations (PSIs) are often required on commercial property for due diligence, financing, or subdivision and development permit applications. Stage I investigations are non-invasive, and are intended to identify past site uses and conditions that have potentially caused a site to be considered environmentally impaired. Stage II investigation may follow in order to confirm the presence or absence of the suspected contamination.

Factors and conditions studied at the Stage II level of investigation include identification of soil and groundwater contaminants, and surfical & groundwater drainage gradients for the site and surrounds.

Depending on the audience, investigation and reporting must meet strict Canadian Standards Association (CSA), or provincial Ministry of Environment criteria.

LEA can provide professional assistance with all of your ESA and PSI needs.

Site Remediation and Decommissioning:

Soil and possibly groundwater remediation is usually required when an accidental release of a contaminant occurs on a site. Site decommissioning involves treatment or removal of contaminated soil, deconstruction involving equipment and buildings, or removal of fuel or chemical storage tanks, in order to significantly change the use of a site.

LEA has extensive experience in the design and supervision of site remediation and decommissioning plans, and related required reporting.

Site Profiles:

A BC Ministry of Environment (MOE) Site Profile submission is required in most instances where site conditions and/or activities on the site are cause to suspect potential soil or groundwater contamination. They are submitted to the MOE when potentially contaminated sites are being decommissioned, are in foreclosure proceedings, are subject to local government applications or permits, or are being sold. BC Contaminated Sites Regulations Schedule  industrial and commercial activities on the site also trigger the requirement for a Site Profile.

LEA can provide professional assistance with the Site Profile process, as well as preparation of reports and submissions for Site profile decisions and releases by the MOE.

Hydrogeology & Groundwater:

Many local governing bodies have begun requesting well tests on newly installed water wells on residential properties. They require a Registered Professional to prepare a report on the well, which includes water chemistry, biology, and water quantity tests. LEA has qualified personnel to perform the tests and prepare the required report. 

Hazardous Materials:

Hazardous materials and related risk assessments are required by WorkSafe BC and most municipalities before demolition or renovation of buildings is undertaken, as well as for post-fire and -flood restoration. These investigations typically require an inventory of Asbestos containing materials (ACM), Lead based paint (LBP), PCB-containing electrical apparatus, ozone depleting substances (ODS), heavy metals such as Mercury, mould contamination and other bio-hazards, and building specific hazards.

LEA has extensive experience with these assessments, and regularly provides the required report(s) in a short turn-around time at competitive prices. This is made possible by our in-house analytical capabilities for bulk Asbestos materials, Lead based paint (LBP) screening by field portable X-ray Fluorescence (XRF), and fungal spore analysis.

Site Perimeter Monitoring:

Monitoring and quantification of air emissions, effluent, odours, or noise levels may be required to defend against complaints, for license compliance or in support of license and permit applications to local, provincial or federal government. LEA can provide a wide range of services in these areas, using uses state of the art data-logging instrumentation, and sampling and analytical techniques for the target analytes.