Water
- Anglian
- Dŵr Cymru
- Northumbrian
- Severn Trent
- South West
- Southern
- 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
- South West
- Southern
- Thames
- United Utilities
- Wessex
- Yorkshire
The populated version of the basic cost threshold feeder model that has been used in our draft determinations can be found below.