Floating Wetland Treatment – Storm Water Ponds

Floating Wetland Treatment - Storm Water Ponds

Floating Treatment Wetlands are customized floating islands for remediation of water on stormwater ponds, settling ponds and other locations where water quality needs improving. They provide water purification benefits similar to natural wetlands. These islands are effective not only because the plants themselves take up excess nutrients and contaminants, but their roots also provide extensive surface area for helpful microbes to grow. The floating island is made with a hard plastic shell and a base of PVC coated metal grating to ensure the island is solid and stable. There is a natural growing medium that is adapted for the types of plants to be grown.

The South Saskatchewan River Watershed Stewards implemented two Floating Treatment Wetlands (FTW) on Evergreen storm pond at the west end of the Northeast Swale. Two Floating Treatment Wetland platforms were purchased in June of 2019. These “floating islands” are made with a hard plastic shell and a base of PVC coated metal grating to ensure the island is solid and stable. There is a natural growing medium that is adapted for the types of plants to be grown. Meewasin staff collected native species from wetlands in and around Saskatoon to be planted on the platforms. Species sourced included wooley sedge, five varieties of rush, mares tail, water sedge, and creeping buttercup.

The City of Saskatoon is funding this project through its Environmental Grant and Saskatoon Wildlife Federation summer camp students came out to the Evergreen Stormwater pond to help us.