United Kingdom

=== Water supply and sanitation ===
{{Main|Water supply and sanitation in the United Kingdom}}
Access to improved water supply and sanitation in the UK is universal. It is estimated that 96 per cent of households are connected to the sewer network.<ref>{{Cite web|url=https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/69582/pb6655-uk-sewage-treatment-020424.pdf |title=Sewage Treatment in the UK |publisher=DEFRA |website=assets.publishing.service.gov.uk |date=March 2022 |page=3 |id=PB 6655 |access-date=8 April 2023}}</ref> According to the Environment Agency, total water abstraction for public water supply in the UK was 16,406 [[megalitre]]s per day in 2007.<ref>{{Cite web |title=Environment Agency |url=http://www.environment-agency.gov.uk/research/library/data/112185.aspx |archive-url=https://web.archive.org/web/20091125040346/http://www.environment-agency.gov.uk/research/library/data/112185.aspx |archive-date=25 November 2009}}</ref>

In England and Wales water and sewerage services are provided by 10 private regional water and sewerage companies and 13 mostly smaller private "water only" companies. In Scotland, water and sewerage services are provided by a single public company, [[Scottish Water]]. In Northern Ireland water and sewerage services are also provided by a single public entity, [[Northern Ireland Water]].<ref>{{Cite web |title=About Us |url=https://www.niwater.com/about |access-date=29 August 2020 |publisher=niwater.com}}</ref>