• Public Notice - Region of Durham - Wagner's Lake and Blue-Green Algae

July 23, 2018 - Durham Region Health Department (DRHD) has been advised by the...
Ministry of Environment, Conservation and Parks (MOECP) of the presence of a small amount of blue-green algae in water samples taken from the Pilkey Road area of Wagner’s Lake, however; the amount of blue-green algae detected does not indicate an algal bloom in the water. As a precaution, DRHD is notifying Wagner’s Lake residents not to use the lake as a source of drinking water. A public advisory sign will be posted in the area where the water samples were taken.
On July 6, the DRHD identified the probable presence of blue-green algae in the south end of Wagner’s Lake; however; MOECP test results do not show the presence of blue-green algae in this area at this time. In 2017, the presence of blue-green algae was confirmed in this location. As the summer progresses and weather conditions vary, there may be a recurrence of blue green algae in the south end of Wagner’s Lake. As a result, the public advisory sign in this area will remain.
Blue-green algae are microscopic, plant-like organisms that occur naturally in ponds, rivers, lakes and streams, and although often blue-green in colour, the algae can also be olive-green or red. It can also appear as foam, scum or mats of algae on the water’s surface.
Residents are advised to be cautious around blue-green algae as some can produce toxins which may be harmful to humans who drink, fish or bathe in the water.
People can protect themselves and their pets from blue-green algae blooms by not swimming or playing in areas where algae is present and a public advisory is posted. Consuming fish where a public advisory is posted is also not advisable.
For more information about blue-green algae, please visit durham.ca, or call the Environmental Help Line at 905-723-3818 or 1-888-777-9613.