The Dee trunk main
The Dee trunk mains have operated since the 1960s and supplies up to 369 million litres of water a day to over 1.7 million customers in parts of Cheshire and Merseyside. Due to the scale of this project cleaning work has been split into two phases. Phase one started in 2007 and was successfully completed in 2008. Work on phase two is underway and is expected to be complete by 2014.
The Hodder trunk main
The Hodder trunk mains are a major source of supply to Blackpool and the Fylde coast. The Hodder system has operated since the 1920s and supplies over 520,000 customers. The cleaning works were completed in April 2010.
The Lancashire Conjunctive Use Scheme (LCUS) trunk main
The Lancashire Conjunctive Use Scheme (LCUS) trunk main supplies over 560,000 customers in the Preston area. It was opened in 1980 and allows water abstracted from the rivers Lune and Wyre and from boreholes in the Fylde to be used in conjunction with Lake District sources. Planning work for cleaning began in 2006 and the project was completed in 2011.
The Manchester ring main
The Manchester ring main first opened in the late 1960s and now supplies over 2 million customers. Cleaning work began in 2008 but due to the scale of this project it has been split up into six phases and is due for completion by 2013.
The Vyrnwy trunk main
The Vyrnwy trunk main takes treated water from Oswestry water treatment works to parts of Cheshire and Merseyside. This is the longest of our large diameter trunk main systems with a combined length of 240km supplying over 900,000 customers. We are currently completing work to reline the pipeline in the Oswestry area. This complex projects is planned for completion in 2020.
The Rivington trunk main
The Rivington trunk main moves water in either direction between Rivington water treatment works and the Liverpool area supplying over 610,000 customers. Works are scheduled to begin in 2013 with completion by 2014.
Trunk Mains Cleaning
Trunk Mains Cleaning work is spread across the Northwest from Carlisle to Macclesfield in 20 different locations and covering approx 244km of existing Trunk mains.
The first scheme started in Macclesfield, Cheshire in April 2010 with work planned to continue across the region for the next five years.
If you have any specific questions, please email NCACustomerTeam@uuplc.co.uk