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Cleaning Up Our Waterways: The Don River and Central Waterfront Project Municipal Class Environmental Assessment - Notice of Study Completion The City of Toronto has completed a Municipal Class Environmental Assessment (EA) Study to advance the recommendations of the City’s Wet Weather Flow Master Plan (approved by City Council in 2003) to capture and treat polluted stormwater and combined sewer overflows (CSO’s) that are discharged to the Don River and Central Waterfront. This will help to improve water quality and our environment. In addition, necessary upgrades have been identified to the City’s critical sanitary trunk sewer infrastructure within the study area to improve operations and service future growth. The study has defined the problems/opportunities, identified and evaluated alternatives, and determined a preferred solution and design in consultation with the City of Toronto, regulatory agencies, and the public. The City has accepted the consultant’s recommendations regarding the preferred solution and design, including the following project components: Sanitary Trunk Sewer System l A Lower Don/Coxwell Bypass Tunnel that will be used on a contingency basis as a bypass to the existing Coxwell Sanitary Trunk Sewer (STS) allowing for periodic maintenance and any necessary repairs of the Coxwell STS, l Four underground storage tanks for offline storage of peak sanitary flows where additional capacity is needed. l Upgrades to the North Toronto Treatment Plant (NTTP). Wet Weather Flow Collection and Storage System l Three integrated tunnels (Lower Don/Coxwell Bypass Tunnel, Taylor Massey Creek Tunnel, and Inner Harbour Tunnel) connected to an equivalent of 15 underground vertical storage shafts that will collect and store wet weather flows and convey these flows to a new wet weather flow treatment facility. l Three underground storage tanks for offline storage of wet weather flows from four remote outfall locations. Treatment of Collected Wet Weather Flow l A new wet weather treatment facility that will provide high-rate treatment of wet weather flows and will be located on future lakefill in the waterlot south of the existing Ashbridges Bay Treatment Plant. l A new pumping station in Ashbridges Grove Park with forcemains connecting to the new wet weather flow treatment facility. l Retrofit of an existing CSO tank at the North Toronto Treatment Plant. Opportunities for Review The study was carried out following the requirements for Schedule ‘C’ projects under the Municipal Class EA. An Environmental Study Report (ESR) has been completed and placed on public record for a 45-day review period starting August 10, 2012 and ending September 24, 2012. The ESR will be available for review on the project website at www.toronto.ca/cleanwaterways and at the following locations: Beaches Library 2161 Queen St. E. 416 393 7703

Leaside Library 165 McRae Dr. 416 396 3835

City Hall Library 100 Queen St. W. 416 393 7650

St Lawrence Library 171 Front St. E. 416 393 7655

If you have any outstanding issues about this project, please address them to the City staff listed below and we will attempt to seek a mutually acceptable resolution. James Yacoumidis, Policy, Planning and Project Consultant City of Toronto, Metro Hall, 18th Fl., 55 John St., Toronto, ON M5V 3C6 Tel: 416-392-8834 Fax: 416-338-2828 TTY: 416-397-0831 E-mail: cleanwaterways@toronto.ca or Visit: toronto.ca/cleanwaterways If concerns regarding this project cannot be resolved in discussion with the City of Toronto, a person or party may request that the Ontario Minister of the Environment make an order for the project to comply with Part II of the Environmental Assessment Act (referred to as a Part II Order), which addresses individual environmental assessments. The Minister must receive the request in writing by September 24, 2012 at the address below, and a copy must also be sent to the City contact. If no requests are received by September 24, 2012, the City may proceed with this project as outlined in the Environmental Study Report. The Honourable Jim Bradley Minister of the Environment 77 Wellesley St. W., Ferguson Block, 11th Fl., Toronto, ON M7A 2T5 Issue Date: August 2, 2012 Information will be collected in accordance with the Municipal Freedom of Information and Protection of Privacy Act. With the exception of personal information, all comments will become part of the public record.

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