Warnings and Alerts

Active warnings and alerts for Waikato region

• Ecoli Alert Unsuitable for Swimming

  18 DEC 2024 By WAIKATO REGIONAL COUNCIL

  While Enterococci results are below alert levels, further monitoring of E. coli at this site currently advises it is unsuitable for swimming.
• Lake Ngāroto Health Warning

  4 DEC 2024 By WAIKATO REGIONAL COUNCIL

  The levels of toxic algae (cyanobacteria biovolume) have exceeded recreational guidelines.  Waikato Regional Council and the District Health Board are monitoring this site.
• Toxic Algae - Caution Advised (Amber)

  2 DEC 2024 By WAIKATO REGIONAL COUNCIL

  Toxic algae can be a concern at this site.  It is important that you use your own judgement before getting into the water. If the water is bright green like pea soup, stay out. Extra care should be taken with toddlers and dogs as they like to put things into their mouths and even a small amount the...
• Warning: Ohinemuri River at Karangahake - site contaminated

  24 AUG 2024 By WAIKATO REGIONAL COUNCIL

  A buildup of bright orange sediment has discharged from a mine shaft entrance, down a steep drop and into a stream that feeds into the Ohinemuri River near the Karangahake Gorge car park. We know there is more sediment to come down into the river and will be for some time. We advise against any cont...
• 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.