// BBC UK NEWS — CRONACA
Giant tunnel proposed to clean up Windermere's sewage problem
Windermere sits at the heart of the iconic Lake District
A £3.6bn proposal to stop sewage being discharged into Windermere, England's largest lake, has been unveiled.
The plans, which are backed by the local water company United Utilities and clean water campaigners, would see a tunnel up to 12 miles (19km) long built to transport sewage away from the lake.
At the moment both raw sewage and treated effluent are discharged into Windermere and campaigners say that is why parts of the lake have been turning green each summer, so-called algal blooming.
It is now up to the government to decide if the plan can be further developed, and if the £3.6bn price-tag is acceptable.
The Lake District is a Unesco World Heritage site and attracts close to 18m visitors each year.
Windermere is at its heart, with the lake holding around 300bn litres of water. That is so big that it can take 9 months for water entering one end to reach the other.
Louise Beardmore, chief executive of United Utilities, says its time to think about the long term
Louise Beardmore, chief executive of United Utilities, told the BBC the proposals were a "100 year solution for this lake".
"In the UK we invest in five year periods and so we come along all the time and we do a bit, then we go away and we come back and do a bit more. This is saying we need to do something differently," she said.