The Liverpool programme - keeping the Mersey clean
Work is well underway on the new £200 million extension to our Liverpool Wastewater Treatment Works (WwTW) on the banks of the River Mersey.
The construction site, almost the length of two football pitches, is a hive of activity, with around 350 people expected to work on the new plant, which will serve 600,000 Liverpudlians, taking away their sewage, treating it to the highest standards, before returning it to the river.
Lorne Large, United Utilities principal project manager, said: “We’re on target to have this new part of the plant up and running by April 2016.
“It’s a state-of-the-art works and something Liverpool can be proud of. The River Mersey is in safe hands.”
Work started in autumn 2011 on the extension to the existing treatment works at Sandon Dock. The project will continue to improve the quality of the water in the river, something which originally began in the 1980s, when it was heavily polluted and named as the dirtiest in Europe.
Since then, United Utilities has spent millions of pounds on the construction of a huge 29km sewer from Crosby to Speke, which carries the city’s wastewater to Sandon Dock, which opened in 1989. Before then, 26 outfalls would regularly send sewage into the Mersey. Now, salmon and trout live in the river.
A clean River Mersey has played a huge role in the regeneration of Liverpool’s economy, helping to attract tourists and businesses to the city’s waterfront.
As part of the new improvements, sections of Sandon Dock will also be upgraded and the existing outfall pipe will be extended into the River Mersey – dispersing treated wastewater even further into the estuary to meet new EU standards. The plant will be able to cope with 11,000 litres of waste a second, equivalent to filling an average family car 200 times every second.
The new extension, based on successful plants in other coastal cities, such as Cardiff and Dublin, has been sunk into Wellington Dock. Coping stones, dock features and furniture are being retained where possible to preserve the site’s heritage.
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