The City of Barrie is undertaking a comprehensive review and analysis of its entire wastewater network to investigate and identify likely sources of inflow and infiltration (I&I). I&I refers to rainwater and groundwater that enter the sanitary collection system and reach the Wastewater Treatment Facility (WwTF), which increases treatment costs and reduces the system’s overall capacity.
The project will focus on determining problematic areas within the sanitary collection system and providing recommendations to mitigate these flows. Flow monitoring data will highlight areas experiencing high I&I, which will then be further investigated through fog testing to pinpoint specific sources of inflow (stormwater) or infiltration (groundwater).
Project Updates
September 29, 2025
Fog testing works have been rescheduled and are now expected to take place October 20 & 21, 2025. If the weather is unfavourable, the work will be rescheduled to the week of October 27. Notices re fog testing works will be delivered to impacted properties.
Fog Testing of Sanitary Sewer Works
The City and its consultant will conduct fog testing of sanitary sewers within the City’s urban boundaries. Fog testing helps identify potential points where stormwater enters the sanitary system, which can increase the risk of basement flooding and add unnecessary costs to wastewater treatment.
Impacted Streets
A fog testing notice is being hand delivered to the affected properties on the streets listed, near where fog testing will occur. The notice includes full information about how to prepare, what to expect, and frequently asked questions. The fog testing works will be completed October 20 & 21, 2025, on the below streets:
- Capps Drive
- Cox Mill Road
- Crimson Ridge Road
- Dock Road
- Gray Lane
- Jean Street
- Plunkett Court
- Royal Park Boulevard
- Tamarack Trail
- Tollendal Mill Road
- Turner Drive
- Tyndale Road
Fog testing will also take place on the below listed streets in the future (timing TBD). Notices will be delivered in advance:
- Carley Crescent
- Dean Avenue
- Esther Drive
- Gregory Court
- Honey Crescent
- Madelaine Drive
- Newberry Court
- Raquel Street
- Raymond Crescent
- Rebecca Court
- Serena Lane
- Stephanie Lane
Schedule
| Study Commencement | August 2024 |
|---|---|
| Wastewater Flow Monitoring | Sept 2024 to July 2025 |
| Fog Testing | Fall 2025 to Fall 2026 |
| Study Completion | TBD |