Blue-green algae is present at both lakes.
In an update on Friday 15 August both lakes are now affected.
Nottingham City Council said:
‘Blue-Green Algae Alert – West Lake, Colwick Country Park
‘We’ve had confirmed reports of blue-green algae on the West Lake at Colwick Country Park.
Keep away from the water – this includes dogs and other pets. Blue-green algae can be toxic and potentially fatal to both animals and humans.
‘Please ensure your dog does not swim, paddle, or drink from the lake.
‘The East Lake (Trout Lake) is currently unaffected.
‘We’ll continue to monitor the lakes and update you if the situation changes. Please follow all signage and guidance from staff.’
• Warning of blue-green algae present at Wollaton Park lake
