Public water supply
The public water supply is drawn from sources around the country. The nature of the source of water will dictate its treatment requirements, and its original location will determine its final destination.
Typically, the first stage of the water supply process is the collection of rainwater in reservoirs, either from rivers and streams or from groundwater. This is directed to water treatment works where it is treated and then stored in covered reservoirs before being pumped out via a distribution network of pipes and pumping stations.
Water is distributed to consumers through large pipes referred to as mains. These pipes are buried underground and are sometimes located below roads and pavements.
In Scotland and Northern Ireland, water and sewerage services are publicly owned. Scottish Water provides the services in Scotland and Northern Ireland Water provides services in Northern Ireland. In Scotland, relevant legislation is set out in the Water Industry (Scotland) Act.
In England and Wales, water supply services are privately owned by regional companies that provide both water and sewerage services, or water only.
Local monopoly water companies have a duty under section 45 of the Water Industry Act 1991 to respond to requests for new connections for domestic purposes, but can charge for providing the connection.
For more information see: Mains water.
[edit] Related articles on Designing Buildings Wiki
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
ECA's public affairs priorities
Member consultation opens to shape priorities for 2027 to 2030.
Dutyholder responsibilities from 1 July 2026.
Where performance meets practice
The Building Envelope Stage at UKCW Birmingham.
CIAT publishes briefing on planning reforms.
Leaders in Learning for Practice Network
Call for conservation leaders in learning to register interest in new network.
The importance of early engagement
Construction lessons from the Trillium HealthWorks Experience Centre.
Mayors are to be given planning call in powers
Mayors across England will be able to make the most important planning decisions.
The Master Builder: William Butterfield and his times. Book review.
Why construction can't afford to ignore the skills gap.
Building Safety Regulator, 19 August
Gill Kernick appointed Independent Chair of Residents’ Panel.
Connecting knowledge, technology and conservation
Building competence for the future of built heritage.
Building Regulations and Building Safety Act
CIOB publishes free advice for non-domestic clients.

















