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Advice to the public – Algae Bloom at Portavoe & Stoneyford Reservoirs

20 July 2018 11:20

NI Water has become aware that there is an issue with algae bloom at Portavoe and Stoneyford Reservoirs. Signage has been erected around the reservoirs to make the public aware of the presence of this algae. Portavoe & Stoneyford Reservoirs are not used by NI Water for the public drinking water supply, however they are popular recreational areas and are used for angling by licence through DAERA.


You can’t tell if an algal bloom in the water is toxic just by looking at it, so it’s best to assume that it is harmful and take the following precautions:-

  • Do not swim in the water
  • Do not swallow the water
  • Avoid contact with the water or algae
  • Do not eat fish caught from the water
  • Pet owners should ensure that their animals do not have access to the water or drink the water.
  • Observe and abide by any warning notices positioned around the water


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