Warnings and Alerts

HEALTH WARNING UPDATE ISSUED BY CDHB: River warnings are now in place for potentially toxic benthic algae (cyanobacteria) in the: Selwyn River/Waikirikiri at Glentunnel Camping Ground  Mats are detaching and have been observed accumulating along the river edges. There are also other access po...

UPDATE (23 March 2022): Visible scums & bloom at Caton's Bay. The lake remains in warning. UPDATE (18 February 2022):  Health Warning  – Algal Bloom in Te Roto o Wairewa/ Lake Forsyth Canterbury DHB’s Community and Public Health unit has issued a health warning after potentially toxic blu...

8 February 2022 Canterbury DHB’s Community and Public Health unit has issued a health warning after potentially toxic blue-green algae (planktonic cyanobacteria) was found in Te Waihora (Lake Ellesmere). People should avoid the Lake and animals, particularly dogs, should not be allowed near the wa...

HEALTH WARNING UPDATE FROM CDHB (10 December 2021): Health warning issued for Lake Pegasus Canterbury DHB’s Community and Public Health unit has issued a health warning after potentially toxic blue-green algae (planktonic cyanobacteria) was found in Pegasus Lake. People should avoid the lake and a...