The City of Toronto has completed a Municipal Class Environmental Assessment (EA) study to provide for long term water servicing of the Downsview Area (see study area map). The purpose of the Class EA study is to determine long term solution for servicing the study area with municipal water.  The study will recommend solutions to achieve the following objectives:

  • provide sustainable water supply and water pressure to service the current population and projected future population to 2041, including future developments within the approved Downsview Area Secondary Plan
  • improve the overall level of water service for customers in the Study Area


  • To create the new watermain route within existing road allowances southerly along Keele Street, Tangiers Road, Ceramic Road, St Regis Crescent North and Bakersfield St.
  • The watermain crossing at Finch Avenue at Tangiers Road will use trenchless construction in order to reduce pedestrian and vehicular traffic impacts.
  • The new watermain will terminate at Sheppard Ave. W. with possible future connections to new developments in the Downsview Area. Upgrades to the Keele Pumping Station are also recommended.

Opportunities for Review

The Project File has been placed on public record for a 30-day public review period starting November 2, 2017 and ending on December 2, 2017.

The Project File is available for review at:

Downsview Library, 2793 Keele Street (north of Wilson Street): 416-395-5720

Centennial Library, 578 Finch Avenue West (west of Bathurst Street): 416-395-5490

Downsview watermain study
Revised Downsview watermain StudyAreaMap

Over the next decades, significant population growth is expected in the Downsview Area, including new development as part of the approved Downsview Area Secondary Plan.

Previous studies prepared for the City identified the need for a new booster pumping station and transmission watermains to provide sustainable water servicing and water pressure in the Downsview Area. These studies also recommended that the City undertake a Municipal Class EA study to identify a preferred servicing solution and determine the preferred location for new facilities and preferred route for new watermains.

The Process

The study is being planned as a Schedule “B” project under the Municipal Class Environmental Assessment (Class EA) document.  The Class EA process provides members of the public and interested parties with opportunities to provide input at key stages of the study. The study will define the problem, develop and evaluate alternative solutions, identify preferred solutions, assess impacts of the preferred solutions, and identify measures to lessen any adverse impacts.

What is a Class Environmental Assessment?

Ontario’s Environmental Assessment (EA) program promotes good environmental planning by determining and managing the potential effects of a project prior to implementation.

The EA program ensures that public concerns are heard. EA balances economic, social, cultural and natural environmental needs so that projects benefit Ontario.

This study is being carried out according to the Municipal Class Environmental Assessment process. This is an approved approach to satisfying requirements of the Environmental Assessment Act specifically tailored to municipal infrastructure. The process includes identifying the problem or opportunity to be addressed, developing and evaluating a range of alternative solutions, providing opportunities for public input and identifying a preferred solution.