Project Description
The Project includes a review and analysis of the Bradford West Gwillimbury's (BWG) entire wastewater network. The goal of the project is to investigate and identify likely sources of inflow and infiltration within the Town's wastewater system. The ultimate goals, based on findings, will include determination of problematic areas within the Town and recommendations to mitigate these inflow and infiltration flows.
The project includes data collection and monitoring of wastewater flows within the sewer system and the creation/calibration of a wastewater model based on the data collected.
Further investigative works include fog testing of the Town’s sanitary sewers to determine specific points of inflow and or infiltration (groundwater or storm water entering sanitary sewers).
Fog Testing of Sanitary Sewer Works
The Town and its Consultant are currently preparing for fog testing of sanitary sewers within BWG’s urban boundaries, in May and June. We are completing fog testing to find potential points where storm water enters sanitary sewers, resulting in higher risks of basement flooding and increased wastewater treatment costs.
Please note: although it is not at all harmful, fog may enter your home during our testing if a leak is present. You will be contacted by staff in the event that a leak is detected. A video is provided below to illustrate what you may see in the event of a leak.
Please view the FAQ at the end of this webpage for a general understanding of the works that are taking place.
| Video of leak during fog testing |
Fog Testing Notice
A notice has been delivered to the affected properties (where fog testing will occur), and published on the news page of our website.
Project Status
The following work has been completed:
- Monitoring of wastewater sewer flows
- Wastewater modelling
- CCTV of wastewater sewers
Contract Services
Consultant: GM BluePlan
| Key Dates: | |
|---|---|
|
Study Commencement |
September 2020 |
|
Wastewater Flow Monitoring |
October 2020 to October 2021 |
|
Wastewater Model |
Fall 2022 |
|
Fog Testing |
Spring 2024 |
|
Study Completion |
Fall 2024 |
FAQ
| What is the purpose of fog testing? |
| The purpose of the testing is primarily to find potential points where storm water enters sanitary sewers, resulting in higher risks of basement flooding and increased wastewater treatment costs. |
| What does it mean if fog enters my house? |
| It might mean there are deficiencies in the plumbing that may also allow sewer gas to enter your home. The common cause are dry plumbing traps that allow fog to enter. |
| Is the fog harmful? |
| No – the fog used for fog testing is the same as what is commonly used on stage in theatrical productions to simulate a smoke effect. The fog is not harmful to your health and will not harm pets, clothing, draperies, or furniture. |
| What should I do to prepare for fog testing? |
|
Ensure all plumbing traps have water in them upon receiving your notice. Pour a few cups of water down each drain within your home to ensure there is water in your drain traps. |
| Do I need to stay home for the duration of the test? |
| No, you do not need to be home when testing is being performed. |
| What should I do if fog enters my house? |
| If fog does enter your home, note the location of the fog, pour some water down the drain and open windows for ventilation. Contact the Town and the on-site representatives will be notified to visit your address. |
| If fog gets into the house, how long does it take to dissipate? |
| The fog will dissipate in a few minutes. Open windows for ventilation. |
| What is next? |
| You will be contacted only if we found something to report. |
| Where can I find more information? |
| Click below for more information about the project, including a more detailed schedule plan. Project Information |
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