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EPCOR successfully completed the performance testing and final facility requirements of Regina's Wastewater Treatment Plant upgrade project in December 2018. Upgrades to the plant were required to meet the Province of Saskatchewan's higher effluent requirements and to accommodate future growth.

Through a Public-Private Partnership, EPCOR completed the design, build and financing of the Wastewater Treatment Plant, which was among one of Canada's largest water infrastructure projects when construction began in 2014. EPCOR delivered the facility on time and under budget.

The City of Regina continues to own the Wastewater treatment plant, which is regulated by the Saskatchewan Water Security Agency, while EPCOR will operate the facility until June 2044.

Healthier rivers and aquatic life

The new facility now meets higher effluent quality requirements specifically regarding the reduction of nutrients that can cause damage to water bodies thus improving conditions for aquatic life. The new treatment solutions will also reduce nutrients that can damage the environment from re-entering the river, helping to improve conditions for aquatic life in the Wascana Creek and Qu'Appelle River system.

How we treat the wastewater


New facility features

In order to accommodate Regina's population growth, the new wastewater treatment plant:

  • Meets the new stringent environmental regulations. The plant is an ISO14001 accredited facility.
  • Utilizes a biological process, lessening the use of chemicals and reducing potential pollutants and chemical costs.
  • Produces a higher quality effluent, which can help improve the Wascana Creek ecosystem.
  • Has the ability to treat more flow coming into the facility. The plant is designed for 156 ML/d of full treatment and 197ML/d for a short duration versus the maximum of about 100 ML/d that existed prior to upgrades.
  • Features a wet weather flow storage system allowing us to store large extreme storm flows up to 450 ML/d and return the flow to the beginning of the process for treatment when the storm subsides. This adds significant robustness to the treatment process.