







In late 2009, Waterfront Toronto conducted an international competition to find the most qualified and innovative firms to conduct the Port Lands pilot soil recycling project. The request for proposals (RFP) was issued to retain firms with the appropriate experience, qualifications and resources, as well as the latest and best soil remediation technologies. In total, 17 submissions were received by the closing date of the RFP.
After rigorous review of the submissions, Waterfront Toronto chose two teams in early 2010 - DEC, in partnership with Coffey Geotechnics, and Tetra Tech/Stuyvesant Environmental Contracting - to conduct the soil recycling pilot. Both teams operate similar facilities in Europe and the United States, and for Waterfront Toronto’s project have engaged a Canadian partner familiar with local conditions.

DEC is part of the DEME group, a private Belgian holding company. DEC partnered with Coffey Geotechnics consultants on environmental permitting, geotechnical engineering, and work place health and safety for the pilot. DEC recently established a Canadian Branch, DEC Canada, which is headquartered in Toronto.
DEC UK was engaged by the London Olympic Delivery Authority to redevelop 2.5 square kilometers of brownfield land within the Lower Lea Valley that will house five major venues for the 2012 Olympic and Paralympic Games.
For the Waterfront Toronto pilot DEC employed soil washing techniques in a full scale self-contained plant. In addition to soil washing, DEC conducted additional testing that integrated a number of complementary parallel lab trials including bioremediation, thermal desorption, chemical oxidation, and stabilization/solidification methodologies in field-scale trials.
Tetra Tech Construction Canada Inc. is one of the largest environmental consulting, engineering, remediation and construction companies in North America. Tetra Tech teamed with Stuyvesant Environmental Contracting Inc., a subsidiary of Netherlands-based Boskalis Dolman bv. This team is currently conducting the world’s largest soil/sediment remediation project in Green Bay, Wisconsin, USA, a 10 year project to remediate the Lower Fox River.
The Tetra Tech/Stuyvesant primary treatment approach was soil washing using a mobile soil washing treatment plant that was assembled on-site. Supplemental treatability studies were also undertaken to assess the chemical, biological, stabilization/solidification, and thermal soil treatment technologies.
