Water Services Regulation Authority (Ofwat)
Document type
- Determinations and decisions (520)
- Contract codes (153)
- Guidance (118)
- Case summary (104)
- Enforcement cases (21)
- Competition cases (3)
Latest documents
- Enforcement case into South East Water's customer service
- Enforcement case into South East Water's supply resilience
- Enforcement case into Dŵr Cymru's management of its sewage treatment works and sewerage network
- Investigation into an eligibility for water market dispute under section 17E of the Water Industry Act 1991 between a complainant and Castle Water
- Investigation into Southern Water’s wastewater treatment sites and the company’s reporting of relevant compliance information to us
- Investigation into Southern Water’s wastewater treatment sites and the company’s reporting of relevant compliance information to us
- Enforcement case into Albion Water about its obligations as a sewerage undertaker
- Norfolk and Lincolnshire gate one timing letter December 2025
- Enforcement case into Wessex Water's management of its sewage treatment works and sewerage network
- Enforcement case into Wessex Water's management of its sewage treatment works and sewerage network
Featured documents
- Guidance for completing the principal statement information capture system for 2014-15 charges approval Appendix 1: Making principal statement entries
- Final determination of a dispute under section 181 of the Water Industry Act 1991: Mr Black v Sutton and East Surrey Water
- Wholesale Retail Code Change Proposal – Ref CPW084
- Customer Protection Code of Practice Change Proposal – Ref CP0011 - Decision Document
- Putting the sector back in balance – summary of Ofwat’s decision on issues for PR19 business plans
- Ofwat final decision on an appeal made by Mr Higginbotham against United Utilities under section 105B of the Water Industry Act 1991
- Appeal against a decision made by Affinity Water and Thames Water regarding the eligibility of a premises
- Variation of Independent Water Networks Limited’s appointment to include Cowdray Centre in Colchester - Decision document
- Wholesale-retail Code Change Proposal – Ref CPW034
- Appeal against Severn Trent Water about the variation of a trade effluent consent
