Warnings and Alerts

HEALTH WARNING UPDATE ISSUED BY CDHB: River warnings are now in place for potentially toxic benthic algae (cyanobacteria) in the: Waihao River at Bradshaw Bridge Opihi River at SH1 Mats are detaching and have been observed accumulating along the river edges. There are also other access point...

WARNING ISSUED 24/12/2017 - ONGOING BLOOMS Updated 26/06/2019 The Community and Public Health division of Canterbury District Health Board has issued a health warning after high concentrations of blue-green algae (planktonic cyanobacteria) was found in Te Waihora/Lake Ellesmere. People and animal...