Blue-Green Algae Bloom

The Ministry of the Environment, Conservation and Parks (MECP) has confirmed a Blue-Green Algae Bloom on Three Mile Lake based on samples taken on Monday, August 10, 2020.
It will take a couple of weeks before the toxicity results will be available. The TMLA will communicate the results by posting on our Facebook group page, on our website – and via email to our membership as soon as the MECP makes these results available.
Yesterday we reported that the bloom was in the east end of the main basin. We have now seen evidence of the blooms in other areas of the lake as well.
As a reminder, here are the potential health effects of coming into contact with Blue-Green Algae:
A) Some blue-green algae produce toxins and can cause a health risk to people and animals when they are exposed to them in large amounts. Your health may be impacted when surface scum or water containing high levels of blue-green algal toxins are swallowed, come into contact with the skin, or when airborne drops containing toxins are inhaled while swimming, bathing or showering.
B) CONSUMING WATER. Ingestion of high levels of blue-green algal toxins have been associated with effects on the liver and nervous system in laboratory animals, pets, livestock and people. Livestock and pet deaths have occurred when animals consumed large amounts of algal scum.
C) DIRECT CONTACT, OR BREATHING AIRBORNE DROPLETS. Coming in contact with high levels of blue-green algal toxins while swimming or showering can irritate the skin, eyes and throat and inflame the respiratory tract.
D) RECREATIONAL CONTACT. Swimming and household contact, such as bathing or showering, with water not visibly affected by a blue-green algae bloom, is not expected to cause health effects. However, some individuals can be especially sensitive to even low levels of algal toxins and might experience mild symptoms such as skin, eye or throat irritation or allergic reactions.
Please refer to the attached public notice by the Simcoe Muskoka District Health Unit (SMDHU) for more information.
SMDHU Public Notice