WORK is about to start on an upgrade of a treatment works which supplies drinking water to homes across north Durham.

Northumbrian Water is to spend £4.5m to improve the Honey Hill water treatment works, at Castleside, near Consett.

The work, which will be complete by April 2008, involves upgrading the different stages of water treatment at the works, which supplies 40m litres of water every day.

The processes which will be involved in the work include the abstraction, clarification, filtration and disinfection stages.

Paul Wood, project manager for the multi-million-pound scheme, said: "This improvement work at Honey Hill water treatment works, which was built in 1966, is part of Northumbrian Water's £100m five-year investment programme to improve water resources and treatment."