Household bills and accounts

0345 600 3 600

Monday to Friday, 8am to 6pm (for non-household billing enquiries, please contact your retailer).
More contacts

Water supply and sewerage

0345 600 4 600

Monday to Friday, 8am to 6pm (emergencies only at other times)
More contacts
Contact us
  • Water network

    We treat and supply 280 million litres of water a day to 1.3 million customers - approximately one tonne of water to every customer weekly across the south west of England including Dorset, Somerset, Bristol, most of Wiltshire and parts of Gloucestershire and Hampshire.

    We have:

    • 180 water sources and water treatment works
    • 200 booster pumping stations
    • 300 service reservoirs and water towers
    • 11,800 kilometres (7,300 miles) of water mains.

    Wessex Water supply area


    Our leakage strategy has reduced successfully leakage to 68.3Ml/d, below the agreed target of 69.3Ml/d. We plan to operate below target in normal years to maintain a buffer in case severe winter weather causes additional leakage. 

    This year we have planned an enhanced metering programme and a pressure management optimisation project with the aim of further leakage reductions so we can meet our ambitious target by 2020.


    leaks fixed in 2016 as well as 4,285 leaks on private supply pipes courtesy of our free leak repair service.

    Our target to fix significant leaks on the network reported to us by customers has been met, mainly by improving existing processes and procedures. 

    Infrastructure improvements

    Our major integrated supply grid project is due to be completed in 2018. This grid will enable us to:

    • reduce abstractions from sensitive groundwater sources as agreed by the Environment Agency
    • move water more efficiently around our region
    • ensure future demand is met
    • improve the resilience of supplies to our customers.

    Key sections of the project commissioned and put into service during 2015-16 included:

    • new storage tanks at Summerslade, near Warminster, and Littledown, near Shaftesbury, and the pumping station at Monkton Deverill, near Warminster, together with all the interconnecting pipelines
    • a new pumping station at Sturminster Marshall in east Dorset and a new storage tank at Snowsdown, near Blandford, and the pipelines between the sites.

    Together with other related schemes this work has enabled us to meet our commitment to reduce the number of properties supplied by a single source by 28,000.

    Good progress has been made with our infiltration reduction plans to cut the risk of groundwater entering public and private drains. We inspected more than 107 km of sewers and permanently sealed 4.2 km in 2015-16.

Close this message