VANCOUVER – California-based environmental engineering and construction firm Brown and Caldwell will help Metro Vancouver with major upgrades to the Annacis Island Wastewater Treatment Plant in Delta, B.C.
As prime consultant Brown and Caldwell will lead program, project and quality management along with design and construction management.
“We commend Metro Vancouver’s unwavering commitment to environmental stewardship while continuing to serve its communities through innovative and sustainable practices. Our team relishes the opportunity to help write the next chapter of this monumental expansion and maintain the Annacis plant as a premier North American treatment facility,” Brown and Caldwell program manager Mike Thorstenson said in a statement.
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BROWN AND CALDWELL — An aerial view shows the Annacis Island Wastewater Treatment Plant in Delta, B.C., which will soon undergo major upgrades.
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BROWN AND CALDWELL — A crane overlooks the Annacis Island Wastewater Treatment Plant where Brown and Caldwell is assisting with major upgrades.
The plant treats approximately 196 billion litres of wastewater annually and serves 1.25 million residents in 14 municipalities across the Lower Mainland. The plant uses primary and secondary treatment technologies to remove organic matter from wastewater before releasing it into the Fraser River.
The upgrade project involves the design and construction of two new trickling filters and a pump station. The four existing centrifuges will be replaced with larger capacity units to improve dewatering output instead of an expensive dewatering building expansion. A maintenance workshop will also be built in order for the staff to maintain the expanded facility.
Extensive ground improvements will be implemented to improve seismic performance including risk mitigation and geotechnical and resiliency considerations to protect existing structures and utilities during installation.
Once complete, the upgrades will increase capacity to serve approximately 1.6 million people. The upgrades are also designed with future expansions and seismic resiliency in mind.
Major sub-consultants include EIC Solutions, Klohn Crippen Berger and J.L. Richards and Associates, who will provide electrical and instrumentation and controls, geotechnical and hydrogeological and architectural design services respectively.
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