Kamloops Sewage Treatment Centre Upgrade – Kelowna

Construction of plant upgrades to the Kamloops Sewage Treatment Centre commenced in the spring of 2012 and was substantially completed in June of 2014. The upgrades to the existing facility will increase the capacity of the plant to 54.5 mL/day. The project team consisted of Maple Reinders (General Contractor), Urban Systems Ltd. (Contract Administrator) and the City of Kamloops (Owner). The scope of work included the construction of a new administration building, new headworks facility, upgrades to existing lagoons, the addition of two new 44 m diameter secondary clarifiers, a new river outlet, dissolved air floatation thickening, new sludge extraction, sludge storage, and centrifuge, and ultraviolet disinfection.

The work also included the installation of a biogas collection cover over the top of an existing anaerobic lagoon with rough dimensions of 173 m x 100 m. The biogas is collected underneath the cover system and sent to a flare stack though a network of pipelines.

Several challenging aspects of the project were completed successfully including 80 m of horizontal pipe ramming for the new outfall complete with in-river piles for structural support. Also completed successfully was the installation of 3,800 lineal meters of 450 mm diameter steel piles for foundation support.