Wastewater Treatment Upgrades
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PRoJECT BaCKGRoUND
The Town of Pilot Butte has grown significantly over the past 15 years, placing a burden on existing wastewater infrastructure. The Town operated a two cell facultative lagoon sized for a contributing population of approximately 2,800, which was discharged twice per year to Boggy Creek ultimately flowing to the Qu’Appelle River system through a series of surface ponds and creeks. As the discharge is to fish bearing waters, the system is required to meet federal Wastewater Systems Effluent Regulations. BCL completed a Downstream Use and Impact Study to establish new effluent targets, and followed with conceptual and preliminary design to modify the existing system process including a SAGR system.
Detailed design was completed in 2019 which includes a first treatment step of a deep aerated partial mix cell, followed by three storage cells with alum feed for phosphorus reduction, and a new pumping station which pumps the effluent into two SAGR cells for ammonia removal. The station recycles a portion of the water back to the system front end to aid in further nitrogen reduction with the remaining portion sent to effluent release. Station design includes a wet/dry style station with 5.8 m deep reinforced concrete substructure.
Project tendering was completed using a contractor pre-qualification process in July of 2019, construction started in September 2019 and substantial completion by November 2020. The facility is the largest in its kind in Saskatchewan, with a capacity to treat wastewater from approximately 7,500 people. The upgraded facility maximized the existing lagoon infrastructure, helping reduce the overall project construction cost to an estimated $9.8M.
Detailed design was completed in 2019 which includes a first treatment step of a deep aerated partial mix cell, followed by three storage cells with alum feed for phosphorus reduction, and a new pumping station which pumps the effluent into two SAGR cells for ammonia removal. The station recycles a portion of the water back to the system front end to aid in further nitrogen reduction with the remaining portion sent to effluent release. Station design includes a wet/dry style station with 5.8 m deep reinforced concrete substructure.
Project tendering was completed using a contractor pre-qualification process in July of 2019, construction started in September 2019 and substantial completion by November 2020. The facility is the largest in its kind in Saskatchewan, with a capacity to treat wastewater from approximately 7,500 people. The upgraded facility maximized the existing lagoon infrastructure, helping reduce the overall project construction cost to an estimated $9.8M.
PRoJECT HIGHLIGHTS
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Services Provided
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