view of still water of lake says Preserve and protect the quality of the lakes and watershed to ensure their continued use and enjoyment by all with title Lac Notre-Dame and Usher Lake Association


2018 Lake Association Meeting

Join us at our Annual General Meeting to share ideas and concerns about the lakes, water quality and the watershed.


Watershed map of Lac Notre Dame and Usher Lake

The map shows all inlets and outlets into the lakes. Lots are marked. Water testing locations are marked.

Water testing results

The Association tests samples of water from the Lakes for phosphorus, nitrogen and E-coli on a regular basis. Volunteer and Lake Association member Carol Doré has collected samples for testing for over 10 years. Say Thank You when you see her!

2018 Update: Water clarity tests show a return to our more usual clarity levels of above 5.0 metres. Very low levels of Eurasian Milfoil in the lake so far (early August). Water chemistry tests show some high e-coli at location 6 (new sample has been collected) and in Usher. Nitrogen and phosphate levels are normal.

Protect the clean water we enjoy

Keep our water clean. We’ve pulled together a handy sheet of tips to share and are delivering them dock to dock this summer of 2018. Share them with your renters - binder page version available.

Some years, invasive Eurasian Milfoil forms a dense carpet on the lake’s surface, crowding out the indigenous plant species and harming fish. It was brought in on someone’s boat or fishing equipment. Each tiny piece broken off by waves or boats can turn into a new plant.

Join the Lake Association

Join the Association to help fund water testing, protect the quality of our water, get updates on water quality initiatives and contribute to Association activities like placing buoys to alert boaters of heavy milfoil weed areas.

The lake dragon (on Chemin du Domaines)

photo of log painted like a dragon