Lagoon Upgrade Project

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​Increased Construction Working Hours
 - Desludging Component
The Commission is required to undertake a sludge removal project as part of the Lagoon Upgrade that is currently under construction.  The process will begin in early June and will operate 24/7 for approximately 44 days.  The work will take place in the area of cells 2, 3A and 3B, as shown below.  

An onsite generator will be operating at all times and worksite lighting will be required during the night hours.  The generator is expected to produce less noise than a household air conditioner and lights will be pointed directly at the work area.

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The Project

​The lagoon system is currently facing the limit of its treatment capacity and  new, more stringent, effluent limits.  The upgrade project proposes to improve the lagoon system efficiency to meet higher standards. All the proposed upgrades are in support of the Bow River Basin Phosphorus Management Plan.

The Commission has successfully applied for grant funding to assist with the costs of the Lagoon Upgrade Project. 
 
The project includes the following upgrades:
  • Upgrades to the Transfer Lift Station.
  • Upgrades to the existing interconnecting piping.
  • The addition of a third partial mix cell.
  • The addition of a SAGR system (three cells) after the third partial mix cell.
  • Upgrades and addition to the aeration system.
  • The addition of a chemical injection system, including a chemical storage building following the SAGR system.
  • The addition of a fine screen and UV disinfection system, including a utility building following the chemical injection system.
  • The addition of a gravity effluent discharge piping system.
  • The addition of a river diffuser system.​