Coxwell Sanitary Trunk Sewer (CSTS)
The Coxwell Sanitary Trunk Sewer (CSTS) was built in the 1950s and services approximately 750,000 residents in the eastern part of Toronto. The CSTS is the most critical section of sanitary trunk sewer in Toronto; it conveys 400 million litres of wastewater flows per day to the Ashbridges Bay Treatment Plant.
In 2008, an assessment of the CSTS determined that a 60-metre section located near Coxwell Boulevard and O'Connor Drive was damaged and needed to be repaired or replaced. After significant technical analysis, it was determined that building a bypass around the damaged section was the best solution. Construction began in 2010 and the original trunk sewer was continuously monitored and in full operation during the entire construction period.
The Coxwell Sanitary Trunk Sewer bypass is now in service. The completion of this phase of the project means that one of the most critical sanitary trunk sewers in Toronto is now structurally and operationally sound. Read the media press release and backgrounder.
Various reports (PDF) to the Public Works and Infrastructure (PWI) Committee and presentations regarding the Coxwell STS.
- May 2012
Staff report - Coxwell Sanitary Trunk Sewer Update
- May 2, 2010
Staff report - Progress update to PWI Committee
- March 25, 2010
Public meeting presentation
- October 6, 2009
PWI - Coxwell Trunk Sewer Update #2 (see item PW27.3)
- June 3, 2009:
PWI - Coxwell Trunk Sewer Update #1 (see Item PW25.17)
- January 27, 2009
City Council - Decision Document (see page 97)
- January 14, 2009:
Presentation to community
- January 6, 2009
PWI - Presentation
- January 6, 2009
PWI - Decision Document
If you have a question or a comment about the Coxwell Trunk Sewer, please e-mail: firstname.lastname@example.org.