Grand Bend Stormwater Management Masterplan

Notice of Study Commencement
Class Environmental Assessment
Stormwater Management Master Plan (SWMMP)

The Municipality of Lambton Shores (Municipality) has retained Arcadis/IBI Group to develop a Stormwater Management (SWM) Master Plan (SWMMP) to establish a much-needed road map for the Municipality to advance the development of a comprehensive stormwater management strategy to address current and future needs within the Village of Grand Bend (Village). Refer to Figure 1-1 Location Plan for the Study Area extents.

As a Master Plan effort, a comprehensive approach is required looking at all stormwater systems throughout the Municipality to understand how they interact, where there are deficiencies, and where improvements are required now and in the future, focused specifically on the Village.

Stormwater systems include many components starting with overland conveyance systems (overland, road, and ditch), inlets and pipe collection systems, water quantity/quality features (end-of-pipe facilities, Low Impact Development (LID), etc.), outfalls, ditches, and receiving streams. Integral to stormwater management practice are quantity and quality control features (end-of-pipe storage, etc.) designed to minimize water quantity and quality impacts on natural systems and aquatic habitat, as well as protecting streams from erosion and managing flood levels.

The Village’s SWMMP must consider the functional requirements of all stormwater services and how they work today and in the future. It needs to provide an acceptable level of service and meet regulatory requirements in accordance with watershed drainage plans, recognizing the constraints imposed by topography and other local considerations.

The Municipality recognizes the need to develop a SWMMP to identify current and future servicing requirements and establish an overall strategy to improve services. The SWMMP process is relatively straightforward as it follows the Class Environmental Assessment (Class EA) process for Master Plans requiring a review of background information, preparation of hydrologic/hydraulic modelling tools, system assessment with a problem/opportunity statement, and the development and evaluation of projects/strategies to meet level of service objectives.

The project is being planned under Schedule B of the Municipal Class EA process.

For further information on the project, or on the planning process being followed, please contact:

Sam Shannon, Infrastructure Manager, at 519-243-1400 Ext.8215 or by email

Roy Johnson B.ENG., P.ENG., MA.SC., Team Lead, Water Resources Engineering, at 416-346-3875

View the Technical Memorandum #1

Public input and comment are invited, for incorporation into the planning and design of this project. Please submit your comments by email to Sam Shannon.

If preferred, public input can be provided in writing and mailed to the Municipal Office at 9575 Port Franks Road, Thedford, ON N0M 2N0, to the attention of Sam Shannon.

This information is being collected in accordance with the Freedom of Information and Protection of Privacy Act. With the exception of personal information, all comments received will become part of the public record and may be included in Study documentation prepared for public review.