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 and news
The UK’s largest air pollution campaign.
Future Homes Standard, now includes solar, but what else?
Will the new standard, due to in the Autumn, go far enough in terms of performance ?
BSRIA Briefing: Cleaner Air, Better tomorrow
A look back at issues relating to inside and outside air quality, discussed during the BSRIA briefing in 2023.
Restoring Abbotsford's hothouse
Bringing the writer Walter Scott's garden to life.
Reflections on the spending review with CIAT.
Retired firefighter cycles world to raise Grenfell funds
Leaving on 14 June 2025 Stephen will raise money for youth and schools through the Grenfell Foundation.
Key points for construction at a glance with industry reactions.
Functionality, visibility and sustainability
The simpler approach to specification.
Architects, architecture, buildings, and inspiration in film
The close ties between makers and the movies, with our long list of suggested viewing.
SELECT three-point plan for action issued to MSPs
Call for Scottish regulation, green skills and recognition of electrotechnical industry as part of a manifesto for Scottish Parliamentary elections.
UCEM becomes the University of the Built Environment
Major milestone in its 106-year history, follows recent merger with London School of Architecture (LSE).
Professional practical experience for Architects in training
The long process to transform the nature of education and professional practical experience in the Architecture profession following recent reports.
A people-first approach to retrofit
Moving away from the destructive paradigm of fabric-first.
International Electrician Day, 10 June 2025
Celebrating the role of electrical engineers from André-Marie Amperè, today and for the future.
New guide for clients launched at Houses of Parliament
'There has never been a more important time for clients to step up and ...ask the right questions'
The impact of recycled slate tiles
Innovation across the decades.
EPC changes for existing buildings
Changes and their context as the new RdSAP methodology comes into use from 15 June.