Stormwater management ponds play a big role in gathering surface water runoff in the Town of Innisfil. By collecting runoff from rain and melted snow, stormwater management ponds help:

  • Reduce localized flooding
  • Control erosion by limiting the amount of stormwater that goes to nearby creeks and rivers
  • Improve water quality by allowing dirt and other solids in stormwater runoff to settle to the bottom of the pond

How a stormwater pond works

As water flows over developed areas where driveways, buildings and roads cover the soil, it reaches our waterways much more quickly since it cannot be absorbed. The runoff collects various pollutants (dirt, fertilizer containing phosphorus and nitrogen) and debris (grass-clippings, paper, cigarette butts) along the way. Stormwater management ponds help collect this runoff. Sand, dirt, silt and other sediments that pollutants attach themselves to settle to the bottom of the pond. Cleaner water leaves the stormwater pond and flows into our watercourse.

Staying safe around stormwater ponds

While the constant water movement is good for stormwater management, it creates unsafe conditions for recreational activities. Keep safe around stormwater management ponds:

  • Do not skate, swim, sled, fish or swim in or on the pond 
  • Do not play around the ponds as water levels can change quickly

Why are stormwater ponds unsafe for winter recreation?

These ponds collect water runoff from the roads. The runoff can contain salt and other materials that impact the water's ability to freeze. Pipes constantly move water in and out of stormwater management ponds, which can make water levels change frequently and impact ice thickness. Snow may cover ice hazards.