Coverage
In general it provides services and operates across Wales from the catchments of the River Dee, River Clwyd in the north, round to the River Usk and River Wye in the south and everything to the west of these catchments. This means that it includes part of the Wirral and Cheshire, and also parts of Gloucestershire, and Herefordshire, particularly Hereford. It excludes the area of Wales drained by the River Severn, which is instead served by Severn Trent. It also excludes those areas supplied by private water utilities such as Dee Valley Water which operates in the River Dee catchment supplying the Chester and Wrexham areas with water.
Read more about this topic: Welsh Water