- Drinking Water 2024 – Summary of the Chief Inspector’s report for drinking water in Wales - Welsh translation
- Rhagymadrodd
- Cyflenwadau dŵr a phrofion
- Cydymffurfio â safonau
- Dysgu o fethiannau cydymffurfio
- Dysgu o ddigwyddiadau
- Cysylltiadau defnyddwyr
- Iechyd asedau
- Cynllunio Diogelwch Dŵr ac Asesiad Risg
- Dwr crai
- Sylweddau poly a pherfflworoalkyl (PFAS)
- Rhaglen Archwilio wedi'i chwblhau gan yr Arolygiaeth.
- Argymhellion
- Gorfodi
- SEMD (Cyfarwyddyd Mesurau Diogelwch ac Argyfwng)
- NIS - Rheoliadau Systemau Rhwydwaith a Gwybodaeth
- Deunyddiau mewn cysylltiad â dŵr yfed (rheoliad 31)
- Cyhoeddiadau ymchwil
- Chwythwyr chwiban
- Gweithio gyda rhanddeiliaid
- Atodiad A – Nifer y profion a gynhaliwyd gan gwmnïau
- Atodiad B – Cydymffurfio â safonau
- Atodiad C – Methiannau a digwyddiadau cydymffurfio
Drinking Water 2024 – Summary of the Chief Inspector’s report for drinking water in Wales – Welsh translation
Published 14:55:49 GMT 7 November 2025
Published by
Drinking Water Inspectorate
Ground Floor, SW
Seacole Building
2 Marsham Street
London
SW1P 4DF
Tel: 0330 041 6501
Website: www.dwi.gov.uk
© Crown Copyright 2025
Copyright in the typographical arrangement and design rests with the Crown.
This publication (excluding the logo) may be reproduced free of charge in any format or medium
provided that it is reproduced accurately and not used in a misleading context. The material must
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Glossary
Company code with its associated company name
- AFW | Affinity Water
- ALE | Albion Eco Ltd
- ALB | Albion Water Ltd
- ANH | Anglian Water Services Ltd
- BRL | Bristol Water Plc
- CAM | Cambridge Water Company Plc
- DWR | Dŵr Cymru Welsh Water
- ESP | ESP Water Limited
- HDC | Hafren Dyfrdwy
- ICW | Icosa Water Ltd
- IWN | Independent Water Networks
- ISC | Isles of Scilly
- LNW | Leep Networks Water
- NES | Northumbrian, Essex and Suffolk Water
- PRT | Portsmouth Water Plc
- SES | SES Water
- SVT | Severn Trent Water Ltd
- SEW | South East Water Plc
- SST | South Staffordshire Water Plc
- SWB | South West and Bournemouth Water
- SRN | Southern Water Services Ltd
- TMS | Thames Water Utilities Ltd
- UUT | United Utilities Water Plc
- VWP | Veolia Water Projects
- WSX | Wessex Water Services Ltd
- YKS | Yorkshire Water Services Ltd