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Poison Alert: Reservoir Water Unsafe Due to Algae
20 Jul
Summary
- Poisonous blue-green algae discovered in Slipper Hill Reservoir.
- The algae poses risks to humans and is highly toxic to animals.
- Authorities are inspecting the reservoir and monitoring the situation.

Members of the public have been advised to steer clear of the water at Slipper Hill Reservoir, located near Foulridge in Lancashire. This cautionary measure comes after the identification of poisonous blue-green algae within the reservoir.
The presence of this algae poses a significant risk, as it can be harmful to human health and is known to be highly toxic to animals. Pendle Borough Council confirmed it is actively working with the Environment Agency (EA) to manage the situation.
While the algae may not be uniformly present across the entire reservoir, regular inspections are being carried out. Experience suggests that once algal numbers reach a high level, the bloom is likely to persist for the remainder of the season.