Draft WRMP24 technical documents
We’ve produced more detail on our how we developed our draft WRMP and the options we considered.
Here are all the supporting technical documents for consultation:
Annex 2: Our Plans for 2023-25
Annex 3: Problem Characterisation
Annex 4: Drought Vulnerability Assessment
Annex 5: Summary of Pre-consultation Feedback
Annex 6: Stakeholder and Customer Engagement
Annex 9: Protecting and Enhancing the Environment
Annex 13: Option Fact Files
Bulk import (HSE) PWC to Otterbourne WSW (21Mld)
Bulk import (HSE) Thames to Southern Transfer - potable (120Mld) (Combination b)
Bulk import (KTZ) SEW RZ8 to near Canterbury (2 Mld)
Bulk import (KTZ) SEW RZ8 to near Canterbury (20Mld)
Bulk import (SNZ) Havant Thicket Reservoir to Pulborough WSW (20Mld)
Bulk import (SNZ) Havant Thicket Reservoir to Pulborough WSW (50Mld)
Bulk import (SNZ) SES to SNZ (10Mld)
Bulk import (SNZ) SEW RZ5 to Pulborough (10Mld)
Desalination (KME) Isle of Sheppey (10Mld)
Desalination (KME) Isle of Sheppey (20Mld)
Desalination (KME) Isle of Sheppey phase 2 (10Mld)
Desalination (KMW) Thames Estuary (10Mld)
Desalination (KMW) Thames Estuary (20Mld) (Development only)
Desalination (KMW) Thames Estuary (20Mld)
Desalination (KMW) Thames Estuary phase 2 (10Mld)
Desalination (KMW) Thames Estuary phase 2 (20Mld)
Desalination (KTZ) East Thanet (10Mld)
Desalination (KTZ) East Thanet (20Mld) Phase 2
Desalination (KTZ) East Thanet (20Mld)
Desalination (SBZ) Sussex Coast (10Mld) Phase 2
Desalination (SBZ) Sussex Coast (10Mld)
Desalination (SWZ) Tidal River Arun (10 Mld)
Drought option - supply (HSE) Candover (15.4Mld)
Drought option - supply (HSE) Lower Itchen sources from 2027 (38Mld)
Drought option - supply (HSE) Lower Itchen sources to 2027 (38Mld)
Drought option - supply (HSW) River Test (80Mld)
Drought option - supply (IOW) Caul Bourne (1.5Mld)
Drought option - supply (IOW) Eastern Yar (1Mld)
Drought option - supply (IOW) Lukely Brook (3Mld)
Drought option - supply (KMW) River Medway Scheme 1-4 (17Mld)
Drought option - supply (SHZ) Darwell reservoir 1-3 (1.2Mld)
Drought option - supply (SNZ) Pulborough surface water (Phases 1 to 3) (23Mld)
Drought option - supply (SNZ) Weir Wood (3.1Mld)
Drought option - supply (SWZ) East Worthing (2.5Mld)
Drought option - supply (SWZ) North Arundel (1.2Mld) version 2
Drought option - supply (SWZ) North Arundel (1.2Mld)
Education campaign (All resource zones)
Groundwater (HKZ) Newbury (1.3Mld)
Groundwater (HRZ) Romsey (4.8Mld)
Groundwater (IOW) Eastern Yar3 (1.5Mld)
Groundwater (IOW) Newchurch (LGS) (1.9Mld)
Groundwater (KME) Gravesend (2.7Mld)
Groundwater (SHZ) Rye Wells (1.5Mld)
Groundwater (SNZ) Petworth (4Mld) (Planning only)
Groundwater (SNZ) Petworth (4Mld)
Groundwater (SWZ) Pulborough Winter Transfer Stage 1 (2Mld)
Interzonal transfer (HAZ-HKZ) Hampshire Grid - reversible (10 Mld)
Interzonal transfer (HRZ-HSW) Romsey Town and Broadlands - bidirectional (3.1Mld)
Interzonal transfer (HRZ-HSW) Romsey Town and Broadlands - bidirectional (5Mld)
Interzonal transfer (HSE-HRZ) Abbotswood (1.1Mld)
Interzonal transfer (HSE-HWZ) Hampshire Grid - (38 Mld) bidirectional
Interzonal transfer (HSW-HRZ) Romsey Town and Broadlands - bidirectional (3.1Mld)
Interzonal transfer (HSW-HRZ) Romsey Town and Broadlands - bidirectional (5Mld)
Interzonal transfer (HWZ-HAZ) Hampshire Grid - (30 Mld) bidirectional
Interzonal transfer (KTZ-KME) Existing transfer (14Mld)
Interzonal transfer (KTZ-KMW) Utilise full existing transfer capacity (9Mld)
Interzonal transfer (SBZ-SWZ) Brighton to Worthing - bidirectional (40Mld)
Interzonal transfer (SNZ-SWZ) Pulborough WSW to Worthing (30Mld)
Interzonal transfer (SNZ-SWZ) Pulborough WSW to Worthing (60Mld)
Interzonal transfer (SWZ-SBZ) V6 valve additional capacity (13Mld)
Interzonal transfer Pulborough winter transfer stage 2 (4Mld)
Managed Aquifer Recharge (MAR) scheme (5.5 Mld)
Managed Aquifer Recharge (MAR) Scheme (5.5Mld) (Development only)
Marketing and comms campaign (All resource zones)
Programme of leakage reduction
Recycling (HSE) Hampshire Water Transfer and Water Recycling Project (60Mld)
Recycling (HSE) Woolston WTW (7.1 Mld)
Recycling (IOW) Sandown WTW (8.1Mld)
Recycling (KME) Sittingbourne Industrial Water recycling (7.5Mld)
Recycling (KMW) Medway WTW (12.8Mld)
Recycling (SHZ) Hastings WTW (15Mld)
Recycling (SHZ) Tunbridge Wells WTW (3.6Mld)
Recycling (SNZ) Horsham WTW (6.8Mld)
Recycling (SNZ) Littlehampton WTW (15Mld)
Roll out of smart metering (All resource zones)
Roll out of smart tariffs across the company (All resource zones)
Storage (SHZ) Raising Bewl 0.4m (3Mld)
Storage (SNZ) River Adur Offline Reservoir (19.5Mld) (Planning only)
Storage (SNZ) River Adur Offline Reservoir (19.5Mld)
Supply of water efficiency products and services (All resource zones)
Treatment capacity (HSE) Upgrade Otterbourne WSW (30 Mld)
Annex 14: T100: a Blueprint for a Water-efficient Culture for Southern Water Customers
Annex 15: T100 and Non-Household Option Identification Technical Plan
Annex 16: Smart Metering Formatting
Annex 18: Strategic Environmental Assessment (SEA) including Appendices A-F
Annex 19: Water Framework Directive Assessment (WFD)
Annex 20: Habitats Regulations Assessment (HRA) including Appendices A-C
Annex 23: Regional Plan Methodologies
Annex 24: Water Resource Planning Tables
Statement of exclusions and making representations
In response to a request raised from a consultee during the draft Water Resource Management Plan 2024 (dWRMP) consultation, we have produced a short Addendum that collates and sets out data which is relevant to the Western area and Water for Life Hampshire Programme.
The collation of the data in this Addendum is intended to help readers better understand the information that has been provided in Southern Water’s draft plan, particularly in relation to abstraction during drought periods, on the Rivers Itchen and Test.