Thornbury Wastewater Treatment Plant

Thornbury Wastewater Treatment Plant Expansion

On this page:
1. Project Updates
2. Public Meetings & Information Centres
3. Map of Project Area
4. Quarterly Progress Reports

The Thornbury Wastewater Treatment Plant was completed in 1994, with a rated capacity of 3580 m3/day. This project will include the construction/installation of all equipment required for operation of the Extended Aeration treatment system to increase capacity to 5,330 m3/day.

Step 1

  • Civil site prep work

Step 2

  • Addition of one extended aeration tank, including aeration system, required accessories, and alum addition 
  • Addition of one clarifier and associated mechanical system
  • Increase the current Ultraviolet disinfection system to meet 5,330 m3/day
  • Replacement of existing air blowers, including required valves, controls, instrumentation and distribution piping
  • Additional 14,000 m3/day mechanical screen and associated hardware to be added
  • Incorporate energy efficiency throughout the plant

Expansion of the plant was approved as part of the 2020 Town Budget. It is anticipated that the detailed design will be completed in Q3 2022. Construction will be completed in two steps to allow for scheduled advancements. The first step is scheduled to be completed in Q3 2022, with the second step beginning immediately afterwards. The project is expected to be completed in Q4 of 2024.

Why Now?

To replace end-of-life equipment and ensure the Thornbury Wastewater Treatment Plant is capable of providing reliable service in line with the forecasted growth of the community.

Project Updates

Public Meetings & Information Centres

No Public Meetings or Information Centres have been scheduled at this time.

Map of Project Area

Site plan for Thornbury Wastewater Treatment Plant Expansion

Quarterly Progress Reports

 Q2 2022Q1 2022
Project ScopeExpanded scopeWithin scope
Project ScheduleOn scheduleOn schedule
Project BudgetIncreased budgetWithin budget

Project scope and budget has increased to include the design of a new outfall pipe.

View Staff Report