The Duffin Creek Water Pollution Control Plant (WPCP) is located in Pickering, on the northern shore of Lake Ontario. This conventional activated sludge plant provides treatment for the wastewater and sewage sludge from both the Regional Municipality of York and the Regional Municipality of Durham.

This project is part of an expansion of the existing WPCP plant to achieve a capacity of 630 ML/day. With the expansion, the WPCP plant will be able to better serve the York and Durham municipalities. There has been considerable population growth in both regions and the plant's expansion will satisfy this growth, while meeting more stringent provincially-mandated treatment regulations.

Kenaidan is involved in the construction of the new Dewatering and Incineration facilities; the dewatering building will be constructed to meet LEED Silver standards. It will be the largest LEED Certified building built at a WPCP in Ontario.  This 28-month project is scheduled for completion in April 2012.

"The New Dewatering and Incineration Stage 3 Process Expansion Project is a critical piece of wastewater treatment infrastructure for York and Durham Regions," said Euan Ferguson, Regional Municipality of York. "It will ultimately provide a clean and efficient method of biosolids disposal for more than 1.5 million residents of the Regions over the next 25 years. We will be particularly proud of the LEED Silver Certification, a clear acknowledgement of the efforts made by the Regions to a sustainable future."

Contract Services: Stipulated Lump Sum

Phase 1 - Heat Exchanger change-out in incineration building - Completion milestone: December 2010

Phase 2 - Construction and commissioning of new dewatering building, incineration building and ash handling building - Completion milestone: January 2012

Phase 3 - Equipment upgrades/modifications in the existing dewatering building and incineration building - Completion milestone: March 2012

Design Features:

• The Dewatering building is a LEED Silver design
• 32,000m² formwork, 12,000m³ concrete
• Three-storey, structural concrete building, with total floor area of 6,000m², post-disaster design
• Interior process/mechanical equipment: Dewatered biosolids handling systems consisting of centrifuges, conveyor network, storage silos with live bottoms, polymer systems and other associated process equipment, cake pumps, and odour control system

Key Challenges:

• No disruptions to existing plant's daily operations
• Co-ordination, and scheduling of more than $90 million of owner's pre-purchased equipment, deliveries and installation