Greenway Water Pollution Control Plant Expansion

Aerial overview of Greenway Water Pollution Control Plant
Final Clarifiers Construction
Final Clarifiers Construction
Formwork for tanks
Overview of concrete works being poured by pump truck
Excavating around shoring system
Project Type: 
Water Treatment
Project Owner: 
City of London Ontario
Project Consultant: 
CH2M Hill Canada Limited
Project Value: 
$38,000,000
Project Years: 
2015 - 2018

The Greenway WPCP Project is a major expansion to a live plant involving multiple stages and phases which are required to maintain the ongoing functionality of the facility. Below is a listing of the various activities which will occur during the construction of the expansion to this facility:

• Temporary and permanent retaining walls and temporary un-watering
• Construction of new Westminster inlet building (headworks)
• Construction of the new final clarifiers & decommissioning of the existing final clarifiers
• Construction of a new 2 section aeration tank with diffuser and channel modifications
• Construction of a new 3 section aeration tank with diffuser and channel modifications
• Construction of RCP sewers
• Construction of the new CEPT bypass sewer & construction of the new effluent sewer
• Retrofitting the 3 section final clarifier 5 to a new WAS holding tank
• Retrofitting the 3 section final clarifier 4 to wet weather storage tank no. 1
• Retrofitting the 3 section final clarifier 3 to wet weather storage tank no. 2
• Retrofitting the 3 section final clarifier 2 to wet weather storage tank no. 3
• Construction of the new RAS pumping stn. & construction of the new TWAS unloading stn.
• Architectural upgrades to the south access house and primary sludge pumping station
• New electrical power feed, control and lighting for emergency generator
• New HVAC and building services, new SCADA system hardware and integration
• Construction of associated pumping, piping, electrical, mechanical and site works
• Management of the new works and integration with ongoing plant operations
• Provision of construction facilities and other temporary controls
• Construction of temporary measures and works including bulkheads for flow isolation in channels, temporary piping, equipment, piping, civil, mechanical, and electrical needed to perform the work
• SCADA and PLC programming, installation, start-up, testing and commissioning.