Water Transfers – RAPID SRO Submissions

Water companies are developing plans to ensure there is enough water in the future to meet the challenges of climate change and population growth, while also seeking to protect the natural environment. One of the potential solutions is to transfer water between different areas of the country through projects known as Strategic Resource Options (SRO), moving water from areas where and when it is available and sharing it with areas experiencing a shortfall in supply.

As part of the 2019 price review, Ofwat has worked with water companies to develop this SRO Programme. United Utilities (UU) has been part of that programme, working closely with our regulators to ensure a truly collaborative approach in the development of the national water resource solutions. The SRO Programme includes a number of schemes whose feasibility will be assessed and funded during AMP7 (2020-2025). This will enable the right portfolio of projects to be selected by Water Resource Regional Plans, ready for implementation in AMP8 (2025-2030) and beyond.

UU are involved in two SRO schemes:-

  • Severn to Thames Transfer (STT SRO) which involves the transfer of raw water from the River Severn to the River Thames through a new interconnector (joint activity with Severn Trent Water & Thames Water);
  • North West Transfer (NWT SRO) which includes the development of new water sources to offset water made available for transfer and enabling works on part of our distribution system – the Vyrnwy Aqueduct – to maintain supply resilience. The NWT SRO was formed at Gate 1 from combining two previous interdependent SROs – UU Sources and Vyrnwy Aqueduct.

In order to facilitate the SRO Programme, Ofwat have formed the Regulators’ Alliance for Progressing Infrastructure Development (RAPID) which brings together the three English water regulators Ofwat, Environment Agency (EA) and Drinking Water Inspectorate (DWI) along with representation from Natural Resources Wales (NRW). RAPID have introduced a gated process to assess SROs during AMP7, with the first gate in July 2021 and the second gate in November 2022. This process aims to ensure the best value SROs are selected for delivery.

The Gate 1 and 2 submissions for the SRO schemes UU are participating in can be viewed below.

Severn to Thames Transfer SRO documents
(A) Joint covering letter including Joint Board Assurance Statement signed by each CEO.pdf (PDF 0.1 MB opens in a new window)
(B) Preliminary Feasibility Assessment inc. Glossary.pdf (PDF 1.7 MB opens in a new window)
(C) STT001 RAPID gate 1 query STT001 response 1 - Redacted.pdf (PDF 0.2 MB opens in a new window)
(D) STT002 RAPID gate 1 query STT002 response-1 - Redacted.pdf (PDF 0.1 MB opens in a new window)
(E) STT003 RAPID gate 1 response - Redacted.pdf (PDF 0.3 MB opens in a new window)
(F) STT004 RAPID gate 1 response - Redacted.pdf (PDF 0.5 MB opens in a new window)
(G) STT005 RAPID gate 1 response - Redacted.pdf (PDF 0.5 MB opens in a new window)
(H) STT006 gate 1 query G1G2 Env Monitoring Programme.pdf (PDF 0.2 MB opens in a new window)
(I) STT006 RAPID gate 1 response - Redacted.pdf (PDF 0.3 MB opens in a new window)
(J) STT-S5-017 INNS Assessment-3 - Redacted.pdf (PDF 5.2 MB opens in a new window)
(K) STT-S5-019 Natural Capital Assessment-3 - Redacted.pdf (PDF 3.4 MB opens in a new window)
(L) STT-S5-020 Net Gain & Carbon Neutrality Paper Assessment-3 - Redacted.pdf (PDF 6.8 MB opens in a new window)
(M) STT-S5-021 Regulatory Assessment Reports SEA-3 - Redacted.pdf (PDF 9.0 MB opens in a new window)
(N) STT-S5-022 Regulatory Assessment Reports HRA-3 - Redacted.pdf (PDF 35.8 MB opens in a new window)
(O) STT-S5-023 Regulatory Assessment Reports WFD-3 - Redacted.pdf (PDF 6.8 MB opens in a new window)
(P) Gate 1 draft decision - STT efficiency of expenditure response - issued.pdf (PDF 2.1 MB opens in a new window)
(Q) Gate 1 draft decision STT Covering letter - issued - Redact.pdf (PDF 0.3 MB opens in a new window)
Gate 2 North West Transfer SRO Documents
NWT Gate 2 Board Assurance Statement - Redacted.pdf (PDF 0.4 MB )
NWT Gate 2 Covering Letter - Redacted.pdf (PDF 0.1 MB )
NWT SRO Glossary.pdf (PDF 0.3 MB )
NWT SRO Response to Gate 2 Draft Decision - Redacted.pdf (PDF 0.6 MB )
NWT-G02-001-000 NWT SRO Detailed Feasibility and Concept Design Report.pdf (PDF 3.3 MB )
NWT-G02-003-001 UU Sources CDR - Redacted.pdf (PDF 2.3 MB )
NWT-G02-003-002 Vyrnwy Aqueduct Enabling Works CDR - Redacted.pdf (PDF 2.1 MB )
NWT-G02-005-001_SWQRA_NWT Gate 2 - Boreholes.zip (ZIP 1.6 MB )
NWT-G02-005-002_SWQRA_NWT Gate 2 - Rivers.zip (ZIP 1.6 MB )
NWT-G02-005-003_SWQRA_NWT Gate 2 - Reservoirs.zip (ZIP 1.6 MB )
NWT-G02-005-004_SWQRA_NWT Gate 2 - Vyrnwy Aqueduct.zip (ZIP 1.6 MB )
NWT-G02-005-005_SWQRA - Template.zip (ZIP 1.6 MB )
NWT-G02-006-001 - Assessment of Sub-options Involving Groundwater Abstractions - Redacted.pdf (PDF 1.1 MB )
NWT-G02-006-002 - Assessment of Sub-options Involving Surface Water Abstractions - Redacted.pdf (PDF 1.2 MB )
NWT-G02-006-003 - Water Framework Directive (WFD) Compliance Assessment - Redacted.pdf (PDF 1.0 MB )
NWT-G02-006-004 - Informal Habitats Regulation Assessment (HRA) - Redacted.pdf (PDF 1.5 MB )
NWT-G02-006-005 - Invasive non-Native Species (INNS) Assessment - Redacted.pdf (PDF 1.1 MB )
NWT-G02-006-006 - Biodiversity Net Gain (BNG) and Natural Capital (NC) Assessment - Redacted.pdf (PDF 0.7 MB )
NWT-G02-006-007 - Initial Environmental Appraisal Report (IEAR) - Redacted.pdf (PDF 2.0 MB )
NWT-G02-007-001 - Planning Assessments Cover Sheet.pdf (PDF 0.3 MB )
NWT-G02-007-002 - Planning Assessment WR015 SWN - RIVER IRWELL - Redacted.xlsx (XLSX 1.1 MB )
NWT-G02-007-003 - Planning Assessment WR111 GWE_WOODFORD - Redacted.xlsx (XLSX 2.0 MB )
NWT-G02-007-004 - Planning Assessment WR113 GWE_TYTHERINGTON - Redacted.xlsx (XLSX 1.1 MB )
NWT-G02-007-005 - Planning Assessment WR149 ITC_WIGAN - Redacted.xlsx (XLSX 1.1 MB )
NWT-G02-007-006_Planning Assessment WR076 SWN_RIVER BOLLIN_Redacted.xlsx (XLSX 1.1 MB )
NWT-G02-007-007_Planning Assessment WR049d SWN_RIVER RIBBLE 49d_Redacted.xlsx (XLSX 1.1 MB )
NWT-G02-007-008_Planning Assessment GWE_AUGHTON PARK a2_Redacted.xlsx (XLSX 1.1 MB )
NWT-G02-007-009_Planning Assessment WR102B GWE_WIDNES_Redacted.xlsx (XLSX 1.1 MB )
NWT-G02-007-010_Planning Assessment WR107b GWE_RANDLES BRIDGE_Redacted.xlsx (XLSX 1.2 MB )
NWT-G02-007-011_Planning Assessment WR105a GWE_LYMM a1_Redacted.xlsx (XLSX 1.1 MB )
NWT-G02-007-012_Planning Assessment WR106b GWE_WALTON_2_Redacted.xlsx (XLSX 1.1 MB )
NWT-G02-007-013_Planning Assessment WR144 SWN_RIVER TAME_Redacted.xlsx (XLSX 1.1 MB )
NWT-G02-007-014_Planning Assessment STT041b SWN_RIVER IRWELL_ROCH_Redacted.xlsx (XLSX 1.1 MB )
NWT-G02-007-015_Gate 2 Procurement Route Assessments.pdf (PDF 1.4 MB )
NWT-G02-008-001 Cost and Carbon Report.pdf (PDF 0.8 MB )
NWT-G02-009-001_UU_Water Quality research _HallTests_Full_Report.pdf (PDF 1.0 MB )
NWT-G02-009-002_UU_Water Quality research _Report_FINAL.pdf (PDF 1.0 MB )
NWT-G02-009-003_UU_WRMP_Final Report.pdf (PDF 2.5 MB )
NWT-G02-009-004_Water Resources West - Emerging Plan Stakeholder Workshops - Feedback Report.pdf (PDF 1.4 MB )
NWT-G02-009-005_Water Resources West - Transfers Consultation Report.pdf (PDF 1.1 MB )
NWT-G02-009-010-Gate 2 Queries and Responses.pdf (PDF 0.7 MB )
Solution Gate 2 Final Decisions.pdf (PDF 0.5 MB )
Gate 2 Severn to Thames Transfer SRO documents
STT G2 Draft Decision Representation.pdf (PDF 1.3 MB )
STT G2 Covering Letter and Joint Board Assurance Statement.pdf (PDF 0.2 MB )
STT-G2-S1-001-STT Detailed Feasibility and Concept Design.pdf (PDF 2.0 MB )
STT-G2-S3-103-Environmental Assessment Methodology Paper.pdf (PDF 1.4 MB )
STT-G2-S3-104-1-Physical Environment Workbook.xlsx (XLSX 40.4 MB )
STT-G2-S3-104-Physical Environment Evidence.pdf (PDF 1.4 MB )
STT-G2-S3-105-Water Quality Evidence.pdf (PDF 2.2 MB )
STT-G2-S3-106-1-Fisheries Evidence Workbook - 20220930.xlsx (XLSX 6.8 MB )
STT-G2-S3-106-Fisheries Evidence.pdf (PDF 1.1 MB )
STT-G2-S3-107-1-Diatom Evidence Workbook_20220930.xlsx (XLSX 11.1 MB )
STT-G2-S3-107-2-Macroinverte Evidence Workbook_202209030.xlsx (XLSX 33.9 MB )
STT-G2-S3-107-3-Macrophyte Evidence Workbook_20220930.xlsx (XLSX 16.4 MB )
STT-G2-S3-107-Macroinvertebrates Other Freshwater Ecology Evidence.pdf (PDF 1.2 MB )
STT-G2-S3-108-1-INNS Evidence Workbook_20220930.xlsx (XLSX 30.4 MB )
STT-G2-S3-108-INNS Evidence.pdf (PDF 1.0 MB )
STT-G2-S3-109-1-Evidence Report Protected Habitats_20220930.xlsx (XLSX 1.7 MB )
STT-G2-S3-109-Protected Habitats Evidence.pdf (PDF 5.1 MB )
STT-G2-S3-110- Biodiversity and Environmental Ambition Evidence.pdf (PDF 18.7 MB )
STT-G2-S3-112-Physical Environment Assessment.pdf (PDF 13.1 MB )
STT-G2-S3-113-Water Quality Assessment.pdf (PDF 3.5 MB )
STT-G2-S3-114-Fisheries Assessment.pdf (PDF 3.6 MB )
STT-G2-S3-115-Macroinvertebrates - Other Freshwater Ecology Assessment.pdf (PDF 2.9 MB )
STT-G2-S3-116-INNS Assessment.pdf (PDF 1.3 MB )
STT-G2-S3-117-Protected Habitat Assessment.pdf (PDF 3.7 MB )
STT-G2-S3-118-1-BNG-Annex1 20221001.xlsx (XLSX )
STT-G2-S3118-2-BNG-Annex 2-20221001.xlsx (XLSX 2.3 MB )
STT-G2-S3-118-Natural Capital & Biodiversity Net Gain (England) Assessment.pdf (PDF 5.9 MB )
STT-G2-S3-119-Ecosystem resilience, wellbeing & SMNR (Wales) Assessment.pdf (PDF 2.8 MB )
STT-G2-S3-120-1- Initial Environmental Appraisal - Annex A SEA Tables_20221011.pdf (PDF 1.3 MB )
STT-G2-S3-120-2-Initial Environmental Appraisal-Annex B Heritage Assets_20221006.xlsx (XLSX )
STT-G2-S3-120-3- Initial Environmental Appraisal -Annex C - Risk Assessment_20221006.xlsx (XLSX )
STT-G2-S3-120-Initial Environmental Appraisal Report.pdf (PDF 12.1 MB )
STT-G2-S3-121-Informal Habitats Regulation Assessment (HRA) .pdf (PDF 3.5 MB )
STT-G2-S3-122-1-WFD Assessment ACWG spreadsheet Full STT 20221005.zip (ZIP 10.4 MB )
STT-G2-S3-122-2- WFD ACWG spreadsheet Early Phase 20221005.zip (ZIP 10.1 MB )
STT-G2-S3-122-Water Framework Directive (WFD) Assessment.pdf (PDF 1.7 MB )
STT-G2-S3-123-1-Protected Species_Workbook_20220930.xlsx (XLSX 8.3 MB )
STT-G2-S3-123-Protected Species Evidence.pdf (PDF 1.0 MB )
STT-G2-S3-124-Protected Species Assessment (1).pdf (PDF 1.7 MB )
STT-G2-S3-124-Protected Species Assessment.pdf (PDF 1.7 MB )
STT-G2-S3-125-1-Wider Benefits Study_Annex1__20221005.xlsx (XLSX 1.7 MB )
STT-G2-S3-125-Wider Benefits Study.pdf (PDF 8.9 MB )
STT-G2-S3-302-Interconnector Options Appraisal Summary Report.pdf (PDF 1.8 MB )
STT-G2-S3-303 - Interconnector Deerhurst to Culham pipeline conceptual design report.pdf (PDF 2.2 MB )
STT-G2-S3-331-River Vyrnwy bypass pipeline conceptual design report.pdf (PDF 2.7 MB )
STT-G2-S3-354-Strategic Water Quality Risk Assessment (SWQRA).pdf (PDF 0.4 MB )
STT-G2-S3-356-Project Delivery Plan.pdf (PDF 0.8 MB )
STT-G2-S3-357-STT Cost Report.pdf (PDF 1.6 MB )
STT-G2-S3-360-Carbon Strategy Report.pdf (PDF 1.0 MB )
STT-G2-S3-451- Planning Consents and Land Report.pdf (PDF 4.1 MB )
STT-G2-S5-501 Procurement, Ownership and Commercial Operation.pdf (PDF 1.1 MB )
STT-G2-S6-601-Efficiency of Gate 2 Spend and Forecast.pdf (PDF 0.6 MB )
STT-G2-S7-701 -4- Annex 4. Research to explore customer value preferences. Accent and PJM Economics. August 2022 .pdf (PDF 3.7 MB )
STT-G2-S7-701 Stakeholder and Customer Engagement Report.pdf (PDF 0.9 MB )
STT-G2-S7-701-3-Annex 3. WRSE Best Value Criteria Customer Research Final Report May 2021 Optimized.pdf (PDF 2.1 MB )
STT-G2-S7-701-5-Annex 5. Changing Water Sources. June 2022.pdf (PDF 3.0 MB )
STT-G2-S7-701-6 -Annex 6. Tap Water Quality Perceptions. May 2022.pdf (PDF 2.1 MB )
STT-G2-S8 Queries and Responses.pdf (PDF 0.5 MB )
STT-Solution Gate 2 Final Decisions.pdf (PDF 0.6 MB )

STT-G2-S3-112-1 Physical Envrionment Workbook - 20221011 and STT-G2-S3-113-1 Waterquality Assessment Supporting Workbooks 2-221-11 are avaliable on request