Canterbury District Health Board has lifted its algal bloom health warning issued in November 2015 for the Selwyn/Waikirikiri River at Coes Ford. Subsequent water testing at Coes Ford has shown the quantity of potentially toxic blue-green algae (benthic cyanobacteria) in the river has decreased and concentrations are now below the levels that are of concern to public health.
Environment Canterbury’s sampling of the Selwyn/Waikirikiri River at Coes Ford will continue to the end of the summer and then will resume next summer when there is increased likelihood of cyanobacteria growth.
The warning on the Selwyn/Waikirikiri River at Whitecliffs remains in place due to the presence of ongoing algal blooms.
More information about cyanobacterial blooms can be found on the ECan website.
More information about water quality in the Selwyn/Waikirkiri at Coes Ford can be found on the LAWA website.