City of Wetaskiwin
Wastewater Feasibility Study

Project Description

The City of Wetaskiwin is located 70 km southeast of Edmonton with approximately 12,900 residents. The existing Wastewater Treatment Facility (WWTF) consists of a manual screen and nine (9) lagoon cells. The collection system consists of gravity sewer main, two (2) main lift stations, and two (2) forcemains. Each of the lift stations directly feed the lagoon system. The wastewater lagoon was built in 1979 and has undergone many upgrades over the years to rehabilitate and add additional hydraulic and treatment capacity.

The City, together with M2 Engineering, developed a phased action plan to work towards a long-term wastewater effluent solution. The phased action plan developed in 2015 included:

• Phase 1: Immediate WSER Assistance and Action Plan Development

• Phase 2: Wastewater Treatment Improvement Planning

• Phase 3: Wastewater Treatment Improvement Execution

We also worked together with Hutchinson Environmental to prepare a receiving stream study to define the health of the eco-system and effluent limits for the upgraded wastewater facility.

The objective of this Feasibility Study was to determine the preferred wastewater treatment solution to accommodate the City’s continual growth and provide proper, sanitary means of treatment that satisfies Provincial and Federal regulations, with flexibility to expand capacity and add components to the system.The Feasibility Study included a thorough analysis of the following:

• Assessment of the existing system

• Establishment of design criteria and regulatory requirements

• Water Quality Based Effluent Limits Study

• Treated effluent quality consideration

• Wastewater treatment facility technology review

• Wastewater treatment upgrade option review and comparison

• Construction staging plan and implementation plan

Photos