Public Advisory: Blue-Green Algae Likely Present (Brandy Lake)

MUSKOKA LAKES, ON, Oct. 7, 2025 – The Township of Muskoka Lakes is advising residents and visitors that the Ministry of the Environment, Conservation and Parks has indicated blue-green algae bloom conditions may be present within the north-east area of Brandy Lake, Port Carling. Ministry sampling is not planned at this time. 

Please note: The Simcoe Muskoka District Health Unit will post bloom locations on their website only when they have been confirmed through testing. To view current waterways affected by blue-green algae, please visit Simcoe Muskoka District Health Unit

Blue green algae

Blue-green algae can produce toxins that may pose health risks to people and pets. Conditions on the water can change quickly; blooms may appear, move, or dissipate with wind and weather. The Township will continue to share updates as they become available.

What you should do (until further notice):

  • Avoid contact with water where algae is visible; keep children and pets away.
  • Do not drink, cook with, or brush teeth with lake water from the affected area. Boiling does not remove toxins. Use an alternate safe water source (e.g., bottled water).
  • Do not fill pools or spas with lake water.
  • If you choose to eat fish from the lake, consume only properly cleaned fillets and avoid organs.
  • If you develop symptoms after contact with affected water (e.g., skin, eye, throat irritation; stomach upset), contact your healthcare provider.

For information on the potential health risks associated with blue-green algal blooms, please contact Health Connection at 705-721-7520 or toll-free at 1-877-721-7520 to speak with a public health inspector.

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For general or media inquiries, please contact:
Mia Palantzas
Communications Advisor
mpalantzas@muskokalakes.ca
705-765-3156 Ext. 360
www.muskokalakes.ca 

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