Durham Region logoYork Region logoWhat is a Municipal Class
Environmental Assessment (EA)?

A Municipal Class Environmental Assessment (EA) study defines the requirements for environmental assessment planning.  A Schedule C Municipal Class Environmental Assessment (Class EA) is a five-phase study that involves a rigorous evaluation of social, environmental, technical and economic impacts that may result from the identification of the proposed solution, including measures to mitigate, lessen or avoid potential impacts. The Duffin Creek Water Pollution Control Plant (WPCP) Class EA study will identify the potential impacts of each alternative developed to provide additional outfall capacity at the plant.


Photo above: A view of a pond at the Duffin Creek WPCP

York and Durham Regions, through this Class EA process, will identify acceptable measures that will allow the project to be undertaken at a reasonable cost while at the same time protecting the environment.

Additional information on environmental legislation in Ontario, including the Class EA process and the Environmental Assessment Act, can be found on the Ontario Ministry of the Environment's website or the Region of Durham's website.

What Does the Class Environmental Assessment (EA) Involve?

The Environmental Assessment to address the limitations of the existing outfall at the Duffin Creek WPCP has been conducted in accordance with the requirements of Schedule C Municipal Class EA. The approach is outlined in the figure below.

Project approach