The City of Toronto has initiated a Municipal Class Environmental Assessment (EA) study to identify solutions to reduce erosion, restore and rehabilitate, and protect City sewer infrastructure in Chapman Valley (see map of study area). The EA will develop a creek restoration strategy to rehabilitate the existing Humber Creek channel with associated improvements to aquatic habitat. The Study is coordinated with TRCA’s erosion control works and outfall improvements needed for the Basement Flooding Protection Program Area 36 EA study.

In 2003, Chapman Valley was identified in the City’s Wet Weather Flow Master Plan as a priority site in need of repair.

Public Drop-in Event (July 18, 2018)

Thanks to all who attended the Public Drop-in Event on July 18, 2018. You can view the notice for more information.

We invite you to provide comments about Humber Creek. Please provide your comments by July 31, 2018 to with the feedback form.

If you were unable to attend the event, you can view the Humber Creek display panels:

In 2003, Chapman Valley was identified in the City’s Wet Weather Flow Master Plan as a priority site in need of repair.

The Process

The study is being conducted under the Master Planning provisions of the Municipal Class EA process (amended 2007). The Class EA process will provide members of the public and interest groups with opportunities for input to this study. The study will define the problem, consider and evaluate alternative solutions, assess impacts of the proposed solutions, and identify measures to lessen any adverse impacts.

The current stage of the EA process is "Consult on Recommended Solutions"
Current Stage of the Environmental Assessment
Map of the study area, which encompasses the Humber Creek
Chapman Valley Study Area Map

This Humber Creek restoration work was taken to address a single area of the creek with other areas still in need of rehabilitation.

Humber Creek with rocks and other debris inside leading to erosion problems
Before Erosion Control Works


After picture of Humber Creek with stones along the perimeter
After Emergency Erosion Control Works

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.