Never drink untreated surface water, whether algae blooms are present or not. Untreated surface water may contain other bacteria, parasites or viruses, as well as algal toxins that could cause illness if consumed.
People using private water supplies that are impacted or draw from a waterbody should not drink water during an algal bloom, even if it is treated. In-home treatments such as boiling and disinfecting water with chlorine or UV and water filtration units do not protect from blue-green algal toxins.
People, pets and livestock should avoid contact with water that is discoloured or has scum on the surface. If contact does occur, wash with soap and water or rinse thoroughly with clean water to remove algae.
Stop using the water and seek medical attention if symptoms such as skin, eye or throat irritation, allergic reactions or breathing difficulties occur while in contact with untreated surface water. However, swimming, bathing or showering with water not visibly affected by a blue-green algae bloom is not expected to cause health effects.
Do not eat the liver, kidneys and other organs of fish caught in the waterbody. Be cautious about eating fish caught in water where blue-green algae blooms occur.
