Updating Subwatershed Plans

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Subwatershed planning is a process that involves characterizing the health of the watershed, identifying stressors affecting its health, selecting preferred solutions to protect, enhance, and restore watershed health, and then monitoring progress and adapting recommendations and activities to achieve desired outcomes. They provide an integrated understanding of watershed health, including the natural heritage and water resource systems. This understanding helps to inform decision makers on how their decisions will affect watershed health.

Between 2010 and 2017, the Lake Simcoe Region Conservation Authority developed plans for the subwatersheds that drain into the lake. We are now in the process of updating these plans, starting with the subwatersheds in the urban and urbanizing areas drained by the East Holland, West Holland, and Maskinonge Rivers, and the Barrie and Innisfil Creeks. As part of this process, we would like to hear from you. As someone who lives or works in the area, what are your concerns about the health of the subwatershed? What are you seeing? In order to make sure that your voice is heard, please fill out our survey here.

We’ll be working on the plans over the next year or so, so please watch for other opportunities to participate in the process.

Subwatershed planning is a process that involves characterizing the health of the watershed, identifying stressors affecting its health, selecting preferred solutions to protect, enhance, and restore watershed health, and then monitoring progress and adapting recommendations and activities to achieve desired outcomes. They provide an integrated understanding of watershed health, including the natural heritage and water resource systems. This understanding helps to inform decision makers on how their decisions will affect watershed health.

Between 2010 and 2017, the Lake Simcoe Region Conservation Authority developed plans for the subwatersheds that drain into the lake. We are now in the process of updating these plans, starting with the subwatersheds in the urban and urbanizing areas drained by the East Holland, West Holland, and Maskinonge Rivers, and the Barrie and Innisfil Creeks. As part of this process, we would like to hear from you. As someone who lives or works in the area, what are your concerns about the health of the subwatershed? What are you seeing? In order to make sure that your voice is heard, please fill out our survey here.

We’ll be working on the plans over the next year or so, so please watch for other opportunities to participate in the process.

  • Subwatershed Plan Update Survey

    Subwatershed plans provide a snapshot of environmental health, identify stressors that are impacting that health, and actions to protect and enhance the subwatershed. These plans help to inform decision makers (such as municipalities) on how their decisions will impact the subwatershed and promote responsible land-use planning.

    We are in the process of updating the plans for five subwatersheds in the Lake Simcoe watershed: the East Holland River, West Holland River, Maskinonge River, Barrie Creeks, and Innisfil Creeks.

    This survey will help us to better understand what locals are seeing in these watersheds, and what your priorities are for those rivers and creeks. Your responses will help us shape the subwatershed plan updates.

    Take Survey
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Page last updated: 16 Jun 2026, 07:12 AM