Our Goals

To monitor lakes for yearly changes in phosphorus and E.coli levels.
To understand the dynamics of lake ecosystems and the causes of problems such as macrophyte (water plant) growth, including invasive species such as:

  • Eurasian milfoil
  • algae
  • zebra mussels
  • water pollution

To educate cottagers, year-round residents and the general public  about the importance of protecting the Kawartha Lakes.
To develop partnerships with government agencies, universities, colleges, cottage and ratepayer associations, and other environmental organizations to further the objectives of KLSA.

Who we are

The Kawartha Lake Stewards Association is a nonprofit, completely volunteer organization of cottagers and year-round residents formed to monitor the water quality of the Kawartha Lakes. Find out about who we are and what we do by going to KLSA Role May 2019

Get current news, postings and discussions about what's happening on our lakes.

Board of Directors

Bill Napier, Chair
Lovesick Lake Association

Kathleen Mackenzie, Vice Chair
Association of Stony Lake Cottagers

Mike Stedman, Director
Lakefield (formerly White Lake)

Lynn Woodcroft, Secretary
Buckhorn Lake

Sheila Gordon-Dillane, Recording Secretary
Concession 17 Pigeon Lake Cottagers Association

Jeff Chalmers, Director
Birchcliff Property Owners’ Association (Clear Lake)

Mike Dolbey, Director
Katchewanooka Lake

Ed Leerdam , Treasurer
North Pigeon Lake Association

Tracy Logan, Director
Logan Tree Experts (Big Bald Lake)

Brett Tregunno, Director
Aquatic Biologist at Kawartha Conservation

Tom McAllister, Director
Lower Buckhorn Lake 

Doug Colmer, Director
Big Cedar Lake



Founded in 2000, KLSA represents 24 cottager associations on more than a dozen lakes along the Trent Severn Waterway. KLSA partners with three levels of government as well as local businesses.

With help from studies by:

  • Dr Paul Frost, David Schindler Professor of Aquatic Science, Trent University
  • Dr. Eric Sager and colleagues at Trent University’s Oliver Ecological Centre,
  • Dr. Brian Cumming, PEARL Laboratory Queens University, and
  • partnerships at Fleming College in Lindsay,

KLSA is doing ground-breaking research on invasive plant species, sources of nutrients in the lakes, and other areas of emerging concern. Public education has become a key part of our work. In the meantime, our core testing programs for bacteria and total phosphorus continue.

Every year we publish a well-received report describing our test results, research programs, and related information about our watershed. To view these reports, click on the Published Material link at the top of your screen. Please feel free to contact us with any questions or if you would like to become involved. See the “Contact Us” link on the right side of the screen.

In 2008, Cottage Life magazine recognized our efforts with its Green Cottager award.

KLSA is grateful for funding from the Ontario Trillium Foundation in support of the 2010-2012 algae research project in the Kawartha Lakes.


Monitoring and Sustaining the Health of the Kawartha Lakes

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