Gate one submissions and final decisions

RAPID’s role in the gated process (working with the partner regulators and Natural Resources Wales) is to assess the progress made in development of each solution and to provide advice and recommendations to enable Ofwat to make decisions on continued funding for progression of the solutions.

The following decisions will be made at gate one:

• whether solution and options within it should progress to gate two;
• applying incentives and allowable costs;
• whether alternative and/ or additional solutions should enter the process;
• and what is required for gate two submissions.

Read more about the gated process.

Gate one proposed solutions:

Read a summary of the final decision findings.

Read a summary of the draft decision findings.

View all of the RAPID schematics for gate one.

Solution submissions	Draft decisions (published 14 September 2021)	Final decisions (published 8 December 2021)	Solution owners	Solution schematic
Anglian Water – Affinity Water Transfer	Draft decision Anglian Water – Affinity Water Transfer	Final decision Anglian Water – Affinity Water Transfer	Anglian Water and Affinity Water
Fenland Reservoir*	Draft decision Fenland Reservoir	Final decision Fenland Reservoir	Anglian Water and Cambridge Water (South Staffs Water)
Grand Union Canal Strategic Transfer	Draft decision Grand Union Canal Strategic Transfer	Final decision Grand Union Canal Strategic Transfer	Affinity Water, Severn Trent Water and Canal & River Trust (The Trust)
London Effluent Reuse	Draft decision London Effluent Reuse	Final decision London Effluent Reuse	Thames Water
Minworth effluent reuse	Draft decision Minworth effluent reuse	Final decision Minworth effluent reuse	Severn Trent and Affinity Water
Severn to Thames Transfer (STT)	Draft decision Severn to Thames transfer Penderfyniad drafft gât un safonol ar gyfer Trosglwyddo o Afon Hafren i Afon Tafwys	Final decision Severn to Thames transfer Penderfyniad terfynol gât un safonol ar gyfer trosglwyddiad o Afon Hafren i Afon Tafwys	United Utilities, Severn Trent and Thames Water	Cymraeg:
Severn Trent Sources (STS)	Draft decision Severn Trent Sources   Penderfyniad drafft gât un safonol ar gyfer Ffynonellau Hafren Trent	Final decision Severn Trent Sources   Penderfyniad terfynol gât un safonol ar gyfer ffynonellau Hafren Trent	Severn Trent	Cymraeg:
South East Strategic Reservoir Option (SESRO)	Draft decision South East Strategic Reservoir Option	Final decision South East Strategic Reservoir Option	Affinity Water and Thames Water
South Lincolnshire Reservoir	Draft decision South Lincolnshire Reservoir	Final decision South Lincolnshire Reservoir	Affinity Water and Anglian Water
Thames to Affinity Regional Transfer	Draft decision Thames to Affinity Regional Transfer	Final decision Thames to Affinity Regional Transfer	Affinity Water and Thames Water
Thames Water to Southern Water Transfer	Draft decision Thames Water to Southern Water Transfer	Final decision Thames Water to Southern Water Transfer	Thames Water and Southern Water
UU Sources	Draft decision UU Sources   Penderfyniad drafft gât un safonol ar gyfer Ffynonellau United Utilities	Final decision UU Sources   Penderfyniad terfynol gât un safonol ar gyfer ffynonellau United Utilities	United Utilities	Cymraeg:
Vyrnwy Aqueduct	Draft decision Vyrnwy Aqueduct   Penderfyniad drafft gât un safonol ar gyfer Traphont Ddŵr Efyrnwy – Ofwat	Final decision Vyrnwy AqueductPenderfyniad terfynol gât un safonol ar gyfer Traphont Ddŵr Efyrnwy	United Utilities	Cymraeg:
West Country South Sources and Transfers (WCS)	Draft decision West Country South Sources and Transfers	Final decision West Country South Sources and Transfers	Southern Water, South West Water and Wessex Water
West Country Southern Water Transfer (WCT)	Draft decision West Country Southern Water Transfer	Final decision West Country Southern Water Transfer	Southern Water, South West Water and Wessex Water

* This is a new solution

Further information

• Letter from Rob Bromley in May 2022 to RAPID regarding Thames Water request to remove a sub-option from the London Effluent Reuse, and RAPID’s response letter.
• RAPID’s September 2022 response to the ‘Thames Water to Affinity Water Transfer (T2AT) SRO request for additional funding for Gate 2 and beyond‘ letter sent to RAPID from Thames Water and Affinity Water in May 2022. This letter and their update letter sent to RAPID in October 2022 have been published on the Thames Water website.

Ofwat wrote to each of the water companies below to communicate its decisions: