Glastonbury organisers have pleaded with festival-goers not to urinate on the grass amid fears they could be fined again for contaminating surrounding rivers and lakes.
The alert comes as forecasters predict temperatures could reach up to 31°C causing the ground to become dry allowing urine to stream into the Whitelake River faster than usual.
Earlier on in the month Glastonbury Festival urged its 200,000 strong crowds to use the provided toilets because “peeing on the ground causes toxic pollution of the water table”.
Urine produces ammonia which starves the rivers of oxygen and can threaten the fresh water fish and species sensitive to changes in water chemistry.
On a poster posted across its social media websites, the organisers said: “The groundwater runs into the central Whitelake River and down the valley for miles around. Wildlife and fish are affected if 200,000 people pee everywhere.”
Stressing the importance of the rule, they added that the festival could close if people do not comply: “The Environment Agency tests the water regularly, and has the power to close down the site if too many people have urinated and polluted the site.
“It really could be the end of Glastonbury if you pee where you shouldn’t. Please only pee in our thousands of toilets and urinals.”