Orangeville Water Pollution Control Plant

Water Pollution Control Plant Expansion


The Town of Orangeville is located in close proximity to the Greater Toronto Area and, as such, has experienced significant growth since 1970. The Town requires an expansion and upgrades to its Water Pollution Control Plant (WPCP) in order to accommodate for future growth, as identified in the 2004 Long-Term Servicing Strategy and the subsequent Municipal Class EA.

Burnside was retained by the Town to undertake the preliminary and detailed engineering, applications for approval, tendering assistance as well as contract administration and field observation during the construction period. The upgrades increase average capacity from 14,000 m3/day to 17,500 m3/day and allow the plant to meet more stringent effluent requirements.

The Orangeville WPCP is an activated sludge plant with a Modified Ludzack-Ettinger (MLE) denitrification process, effluent filtration, chlorine disinfection and dechlorination. The facility consists of 2 treatment trains – the Old Plant and the New Plant. The New Plant‘s expantion increases the WPCP’s overall rated capacity. Some of the New Plant design changes include the addition of a fourth bioreactor, high efficiency turbo blowers to meet increased aeration requirements, the construction of an additional clarifier and the construction of a third shallow sand bed filter. The Old Plant upgrades improve performance and, include the replacement of existing return activated sludge pumps, blowers, aerators, and grit handling equipment. The upgrades to both trains overhaul the plant PLC instrumentation and control capabilities.

Upgrades were performed while the plant was operational. Care was taken to devise a sequencing plan for construction, which allowed the plant to continue to treat the incoming flows and discharge effluent compliant with the pre-construction rated capacity.

Services Provided

  • Project Management
  • Preliminary Design
  • Detailed Design
  • Tendering Assistance
  • Construction Support
  • Post Construction Support

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