NEWS
READ MORE ABOUT SWAN LAKE PARK
Concerns about Phoslock
Phoslock is a modified clay product made from naturally occurring products lanthanum and bentonite. Lanthanum binds with phosphorus to produce lanthanum phosphate. Lanthanum phosphate is very insoluble and therefore once bound phosphorus remains locked up
Additional Actions Required in a Post Phoslock Setting
Phoslock targets the critical goal of reducing phosphorus already in the lake while the Geese Management program should help reduce the major external source of phosphorus and nitrogen. We are not aware of any planned
Proposed Six Year Action Plan for Sustainable Water Quality
We believe the following comprehensive six year program could stabilize Swan Lake as a eutrophic lake and provide a basis of assessing whether attaining mesotrophic status is feasible. The proposed plan is based upon a
Four Underlying Issues Impacting Water Quality
Technical assessments by Markham have ident1fied four underlying factors that are impacting the poor water quality conditions in Swan Lake: excessive levels of phosphorus, nitrogen, chloride (from road salt) and low oxygen levels. Excessive Phosphorus
Long Term Sustainability Options Proposed – June 2020
In June 2020, Friends of Swan Lake Park outlined a proposed action plan for the city of Markham that would restore both Swan Lake and Swan Lake Park. Short Term Action Plan Reverse the policy
Enhanced Goose Management Plan Proposed – August 2020
Most of the excess phosphorus entering Swan Lake is attributed to Canada Geese with only 30% -50% coming from runoff from adjacent areas and stormwater. Staff has conclude that there is little that can be