NEWS
READ MORE ABOUT SWAN LAKE PARK
Park Improvement Survey Results – March 2021
The Park Improvement Survey was completed by 367 residents primarily from the Greensborough area in early March 2021. The respondents stated their appreciation for proximity to a naturalized site and provided perspective on a number
A PATHWAY TO SUSTAINABLE WATER QUALITY FOR SWAN LAKE
Swan Lake Park in Markham is home to a rich diversity of wildlife. But this wildlife is threatened by the deteriorating water conditions in Swan Lake and the erosion of sustainable terrestrial habitat in Swan
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