A DEADLY blue-green algae warning has been issued for Esthwaite Water.

The Environment Agency confirmed the presence of a toxic bloom on the lake after being alerted by South Lakeland District Council.

Officials say people and pets should stay away from the water.

Today, The Westmorland Gazette reported a holidaying family’s distress after claiming they were told by a vet that their 15-month-old cocker spaniel had died from swallowing the algae while paddling in Windermere.

The precise location of the Esthwaite Water bloom is at grid reference SD 36226 96748.

Anyone using lakes and rivers should treat all blue-green algae blooms with caution and contact should be avoided as skin rashes and illness may occur if the water is swallowed.

Farmers and pet owners should also prevent livestock and animals coming into contact or drinking the affected water, as it can sometimes prove fatal for animals.

SLDC’s principal environmental health officer, Andrew Smith, said: “Blue-green algae can potentially make people feel quite ill if swallowed or even by just swimming in it. We just want people to be aware of the affects and are asking people to be extra careful and vigilant when using the lakes and rivers for recreational purposes during the summer months.

“The public should observe any notices near affected areas and avoid contact or drinking the water.”

Many waters are vulnerable to problems with blue-green algae, typically between June and November. All blue-green algal blooms should be assumed to be toxic and the blooms vary in colour from discoloured green, blue-green, greenish brown, or reddish brown.

Further information about blue-green algae can be found on the Environment Agency’s website at www.environment-agency.gov.uk