Several beaches under ‘Caution’ advisory in Leeds, Grenville & Lanark Counties
The Leeds, Grenville and Lanark District Health Unit is conducting weekly water quality monitoring at 24 public beaches across the region this summer — including several popular swimming areas throughout the area. Testing runs annually from late June to the end of August and helps ensure beachgoers are aware of potential health risks due to elevated bacteria levels or environmental hazards.
In Lanark County, beaches, lakes and parks throughout Mississippi River, Lanark Highlands, and Rideau River are being tested weekly. As of Friday, July 11, 2025, several Lanark-area beaches have been issued a “Caution” advisory due to higher than normal levels of bacteria in the water. These include:
- Carleton Place – Riverside Park Beach
- Carleton Place – Centennial Park Beach
- Mississippi Mills – Almonte Beach
In Leeds and Grenville, beaches, waterways and parks in Brockville, Gananoque, Prescott, Westport, Lyn and many other popular summer recreational spots were tested this week. As of July 11, the Joel Stone Beach in Gananoque and Westport Sand Lake are both listed under “Caution”.
According to the Health Unit, a “Caution” status means swimming is not recommended at this time due to elevated health risks. The Health Unit advises swimmers to be mindful of other environmental factors that may impact water quality — including recent rainfall, bird droppings on the beach, strong winds, or the presence of algae blooms. These conditions can lead to high bacterial levels or potential exposure to harmful substances like blue-green algae, which can cause skin irritation or illness.
Beachgoers are encouraged to check for the latest test results and advisories before heading out on the Leeds, Grenville and Lanark District Health Unit website.