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Environmental Site Assessments

Environmental Site AssessmentsDST has conducted numerous Phase I/II/III Environmental Site Assessments across Canada. A Phase I Environmental Site Assessment consists of a review of historical reports and records, interviews, a site reconnaissance, and other research to identify potential or existing environmental contamination liabilities. This evaluation assesses the underlying condition of the land as well as historical and current usage. If significant environmental contaminating activities are discovered through the Phase I ESA, then a Phase II ESA is undertaken to confirm and describe the presence/absence and extent of contamination. This involves a review of information from the Phase I ESA and the collection of soil, groundwater, and sediment samples in order to quantitatively analyze the presence or absence of contamination. Methods used to collect samples may include the advancement of test pits, boreholes, monitoring wells, or soil vapour collection. A subsequent Phase III ESA delineation study may also be undertaken to describe the depth or spread of a contamination plume. During the Phase III ESA, we aim to further delineate the horizontal and vertical depth of contamination and will undertake further testing, sampling, and monitoring. A Phase III ESA typically also involves evaluation of remediation methods and options, costs, and feasibility of site cleanup. DST also completes National Classification System for Contaminated Sites scoring for contaminated sites under federal jurisdiction. Such studies conform to CSA standards, provincial regulations (eg. O. Reg. 153 as amended), as well as federal CCME methodologies.

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Community Events

Young Professionals in St. John’s

Every three years, in conjunction with the annual Canadian Geotechnical Society annual conference, the Canadian Young Geotechnical and Geoscientists Conference occurs. This event brings together young professionals from across Canada…


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Bump! Spike! Set!

Another year, another great time at the  HOPE Beach Volleyball tournament held annually at Mooney’s Bay in Ottawa, Ontario.   The DST VolleyBrawlers had a fantastic time serving up fun…


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Mining Day at the Thunder Bay Waterfront

It was another successful year for Mining Day in Thunder Bay, ON. Our Thunder Bay team joined many other companies and service providers in the region at Mining Day. This…


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A Freedom celebration!

Shoal Lake #40 First Nation has a lot to celebrate: after years of only having safe winter access to their community, the long-awaited Freedom Access Road is finally completed and…


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Englobe Corp. Makes $5000 Transportation Associati...

Corporate responsibility is a top priority for Englobe and we make an effort to give back to the communities in which we operate.  One area that is of particular importance…


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Blasting Videos

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Our qualified blasting engineers design more than just rock-cuts and mines. They take down structures! Reinforced concrete buildings, smokestacks, steel tanks…

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