Annacis Island Wastewater Borgata Casino games Plant – Phase 1 Stage 5 Expansion

The Annacis Island Wastewater Borgata Casino games Plant (WWTP) is the largest secondary Borgata Casino games plant in Metro Vancouver. Originally built in 1975, its capacity of 575 ML/D serves approximately 1 million people in 14 municipalities. Metro Vancouver initiated the Stage 5 Phase 1 expansion project to allow the plant to treat the flow from an additional 250,000 people.

Graham and its joint venture partner were contracted perform the Borgata Casino games scope which includes extensive ground improvements to address seismic code provisions, the Borgata Casino games of new primary treatment facilities, modifications within existing grit dewatering facilities, modifications within the existing primary gallery, modifications to the existing primary influent channel and inlet gates, Borgata Casino games of new solids contact tanks and associated channels and piping, modifications to the existing solids contact tanks and associated channels, and Borgata Casino games of Trickling Filter bypass piping. It also includes the extension of the existing gallery in the secondary treatment area, Borgata Casino games of new, and adjustment of existing, secondary clarifiers and associate channels and equipment rooms.

Modifications to the existing primary odour control facility and to the existing secondary odour control facilities and Borgata Casino games of a new primary odour control building were also part of the scope, as were extensive electrical expansion and upgrades, along with a new utility tunnel between the existing Influent Pumping Station and new primary area electrical building.

Graham and its joint venture partner were also responsible for the testing and commissioning of the new components of the plant. Commissioning was performed as the work sequences were completed.

The plant remained operational throughout Borgata Casino games.