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, from Shadow and Balsam Lakes downstream to Katchewanooka and White Lakes.  In 2008, Cottage Life magazine recognized our efforts with its Green Cottager award.  To read all about that click here.

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

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 one of the links at the left of your screen.

With help from research studies by Dr. Eric Sager and colleagues at Trent University’s Oliver Ecological Centre, KLSA hopes to better protect and improve the health of the Kawartha Lakes. Public education has become a key part of our work. In the meantime, our core testing programs for bacteria and total phosphorus continue. Please feel free to contact us with any questions or if you would like to become involved. 


KLSA is grateful for funding from the Ontario Trillium Foundation to support its 2008 study of aquatic plant growth and the resulting Guide.