Warnings and Alerts

Active warnings and alerts for Canterbury region

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  Lake Forsyth/Te Roto o Wairewa cyanobacteria health warning

  31 JAN 2023 By ENVIRONMENT CANTERBURY

  31 January 2023: Health warning due to Algal Bloom in Te Roto o Wairewa/ Lake Forsyth Te Mana Ora | Community and Public Health has issued a health warning after potentially toxic blue-green algae (planktonic cyanobacteria) was found in Te Roto o Wairewa - Lake Forsyth People should avoid the l...
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  Phormidium - River cyanobacteria warnings

  24 JAN 2023 By ENVIRONMENT CANTERBURY

  HEALTH WARNING UPDATE ISSUED BY CDHB: River warnings are now in place for potentially toxic benthic algae (cyanobacteria) in the: Ashley River at SH1 Selwyn River/Waikirikiri at Glentunnel Camping Ground  Selwyn River/Waikirikiri at Whitecliffs Domain (camping area) Waihao River at Gum Tree Fl...
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  Advisory Note - Cyanobacteria present in a number of Canterbury rivers

  11 JAN 2023 By CANTERBURY ADMIN EG

  Advisory Note: Caution – Low levels of cyanobacteria mats (toxic algae) are present in a number of Canterbury rivers. Environment Canterbury has found low levels of benthic cyanobacteria (toxic algae) at the following locations that we routinely monitor. Ashley River at SH1 Additionally, we a...
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  Saltwater Creek cyanobacteria warning

  9 JAN 2023

  Health Warning – Algal Bloom in Saltwater Creek (Timaru) near the SH1 bridge (Ōtipua) (issued by Te Whatu Ora on 09/01/2023) Te Mana Ora | Community and Public Health has issued a health warning for Saltwater Creek, (Ōtipua), Timaru near the State Highway 1 bridge. The warning follows potentially...
• Advisory Note: Potentially toxic algae mats found

  2 DEC 2022 By ENVIRONMENT CANTERBURY (EG)

  Advisory Note: Potentially toxic algae mats found Dog owners are advised that potentially toxic algae mats have been observed at Lake Aviemore at the Waitangi boat ramp. Advice is to restrict dog access to this area and keep an eye out for black mats floating near the shore. If your dog becomes il...
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  Lake Pegasus cyanobacteria warning

  3 NOV 2022

  Issued: 2 November 2022 Health Warning – Algal Bloom in Lake Pegasus Te Mana Ora Community and Public Health, part of Te Whatu Ora National Public Health Service, has issued a health warning after potentially toxic blue-green algae (planktonic cyanobacteria) was found in Lake Pegasus. People sh...
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  St Annes Lagoon/Mata Kopae cyanobacteria warning

  7 JUL 2022 By ENVIRONMENT CANTERBURY

  Permanent Health Warning for Algal Bloom at Mata Kopae/St Anne’s Lagoon. Issued: 7 July 2022 Long term water testing indicates that potentially toxic cyanobacteria bloom periodically in Mata Kopae/St Anne’s Lagoon. There is a permanent health warning advising people (and animals) to avoid contact...
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  Te Waihora/Lake Ellesmere cyanobacteria warning

  8 FEB 2022

  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...