Warnings and Alerts

Active warnings and alerts for Waikato region

Lake Rotoroa (Hamilton Lake) Cyanobacteria Alert

7 SEP 2023 By WAIKATO REGIONAL COUNCIL

Cyanobacteria have been detected at levels that exceed recreational guidelines. Swimming is not recommended. As cyanobacteria can be harmful to dogs, dog owners are encouraged to keep their dogs out of the water and not let them drink the water from the lake. The Council and the District Health Boar...
Lake Hakanoa Health Warning

4 AUG 2023

The levels of toxic algae (cyanobacteria biovolume) have exceeded recreational guidelines. Waikato Regional Council and the District Health Board are monitoring this site.