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, condition assessments of the CSTS were undertaken and it was determined that approximately 60 metres (200 feet) of the trunk sewer, located beneath the Coxwell Boulevard/O'Connor Drive area, is damaged. The City has put in place a monitoring program and after significant technical analysis a bypass option has been determined and construction began in spring 2010.
Construction is expected to be completed in late 2011 and landscaping at Coxwell Boulevard and O'Connor Drive will begin in Spring 2012.
Documents
Various reports (PDF) to the Public Works and Infrastructure (PWI) Committee and presentations regarding the Coxwell STS.
- 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
More information
If you have a question or a comment about the Coxwell Trunk Sewer, please e-mail: coxwellsewer@toronto.ca.