A health warning has been issued for Lake Whakamaru after samples taken from the lake by Waikato Regional Council confirmed a bloom of potentially toxic blue-green algae.
Today's health warning is an update and extension of the health warning issued last week for Lake Ohakuri and Lake Maraetai.
"Members ofthe public should not drink any water sourced from these lakes, and should continue to avoid any activity which results in significant contact with the water," Medical Officer of Health Dr Phil Shoemack said.
Contact with water affected by blooms of blue-green algae can cause asthma and hayfever attacks in some individuals. It can also cause skin rashes, stomach upsets, and in some cases neurological effects such as tingling around the mouth, headaches, breathing difficulties and visual problems.
Signage has been erected at Lakes Ohakuri and Maraetai and will shortly be erected at Lake Whakamaru advising potential lake users about the algal blooms.
Shoemack advised the public to always watch out for signs of algal blooms if using lakes.
Signs to look out for include discoloured water, an unusual smell, or green or brown floating algae particles.
