Water
- Anglian
- Dŵr Cymru
- Northumbrian
- Severn Trent
- Southern
- South West
- Thames
- United Utilities
- Wessex
- Yorkshire
- Affinity
- Bristol
- Dee Valley
- Portsmouth
- Sembcorp Bournemouth
- South East
- South Staffs
- Sutton & East Surrey
Sewerage
- Anglian
- Dŵr Cymru
- Northumbrian
- Severn Trent
- Southern
- South West
- Thames
- United Utilities
- Wessex
- Yorkshire
Note that the models are in xlsm spreadsheets. If you are having problems opening it, we suggest you try downloading the file, and renaming it with a dd.xlsm file extension, and then opening it in Excel. Please note that it needs to be xlsm, not xlsx.