Port Alberni Wastewater Lagoon Upgrades

Owner

City of Port Alberni

Completed Date

2021

Project Description

This project involved the upgrade of a waste water lagoon in Port Alberni, BC.

The key components of the work include:
  • Demolition of the existing electrical building, existing infrastructure in berms
  • Ground improvement and piling works for building and pump station platform support
  • Construction of new screen and treatment buildings, including supply and installation of fine screens/compactors, slides gates, stop logs and emergency bypass
  • Construction of new berm (including preloading), dividing lagoon in two cells
  • Site works and tie-ins to the existing pipes, City lagoon, flowmeter chamber, junction chamber, force mains and new screening building
  • Construction of sewage pumping stations
  • Supply, fabrication and installation of all process piping, gravity storm & sanitary sewer, precast, water line, and plumbing including valves and appurtenances
  • Supply, fabrication and installation of heating and ventilation systemsSupply and installation of electrical, instrumentation and controls systems including new transformer, MCC and genset
  • Construction of access roads
  • Startup, commissioning and testing

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