PR19 Reports
Letters to Ofwat
CEO Letter to Ofwat 31st January 2020
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546.8kB, PDF
Summaries
Board Assurance statement WSH
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300.1kB, PDF
Briefing for Ofwat Non-Executive Directors and senior leadership WSH
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1MB, PDF
Business Plan Executive summary WSH
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640.5kB, PDF
Business Plan WSH
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6.1MB, PDF
IAP-pro-forma WSH
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35.5kB, XLSX
PR19 Stakeholder engagement WSH
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477.5kB, PDF
Submission documents map
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216.1kB, PDF
Approach to PR19
Welsh Water 2050 WSH
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18.9MB, PDF
PR19 Customer Engagement Acceptability testing
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6.7MB, PDF
PR19 Customer Engagement Bills research
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4.4MB, PDF
PR19 Customer Engagement Business Plan Options Testing
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3MB, PDF
PR19 Customer Engagement ODIs research WSH
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3.2MB, PDF
PR19 Customer Engagement Performance targets qualitative research
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4.3MB, PDF
PR19 Customer Engagement Performance Targets quantitative research
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1.4MB, PDF
PR19 Customer Engagement Phase 1 triangulation of priorities
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1.1MB, PDF
PR19 Customer Engagement Welsh Water 2050 qualitative Research
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3.6MB, PDF
PR19 Customer Engagement Welsh Water 2050 Quantitative research Have your Say consultation
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4MB, PDF
PR19 Customer Engagement WTP
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2.4MB, PDF
PR19 Customer Engagement report
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3.1MB, PDF
PR19 Supporting government policy and long-term agendas
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767.6kB, PDF
Business Plans
Bioresources Business Plan WSH
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5.2MB, PDF
Evaluating a predicted IMD approach to debt cost assessment-Final WSH
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958.2kB, PDF
Household Retail Business Plan WSH
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1.4MB, PDF
Non-Household Retail Business Plan
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1.3MB, PDF
PR19 Developer Services Business Plan
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1.2MB, PDF
Wastewater Network Plus Business Plan PR19 WSH
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4.8MB, PDF
Water Network Plus Business Plan WSH
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5MB, PDF
Water Resources Business Plan WSH
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3.8MB, PDF
Welsh Water Household Income Q1 2017 WSH
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626.7kB, PDF
Supporting Details
51 PR19 Investment Planning WSH
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2.2MB, PDF
52 PR19 Performance commitments WSH
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3.2MB, PDF
521 Summary of Customer Research by Measure of Success WSH
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350.1kB, PDF
522 Economic Insight Cost Benefit Report WSH
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2MB, PDF
53 PR19 Performance Commitment definitions WSH
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1.2MB, PDF
54 PR19 Past Performance report WSH
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1.6MB, PDF
55 PR19 Outcome Delivery Incentives WSH
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835.6kB, PDF
551 PR19 Outcome Delivery Incentives ODI Payment Incentive Rates WSH
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594.7kB, PDF
57 PR 19 Direct Procurement report WSH
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885.2kB, PDF
571 PR19 Direct Procurement for Customers report WSH
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1.6MB, PDF
58 PR19 Investment Cases WSH
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345.4kB, PDF
58A PR19 IC Water Resources WSH
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1.3MB, PDF
58B PR19 IC Reservoir Safety WSH
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1.3MB, PDF
58B2 Schedule of works anticipated for AMP7 WSH
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432.3kB, PDF
58B3 Dam Safety Reservoirs Cost Modelling WSH
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482.7kB, PDF
58B4 Definition for asset resilience performance commitment WSH
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200.9kB, PDF
58B5 Costadjustmentsummaryform WSH
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189.1kB, PDF
58C Raw Water Distribution WSH
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969.7kB, PDF
58D PR19 IC Water Treatment Maintenance WSH
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1.3MB, PDF
58E PR19 IC Cwm Taf Water Supply Strategy WSH
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1.3MB, PDF
58E1 Cwm Taf Strategy Review WSH
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1.4MB, PDF
58E2 Multiple stream example WSH
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363.3kB, PDF
58E3 New Cwm Taf Works Capacity Assessment WSH
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280.9kB, PDF
58E4 DWI Notices WSH
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938.3kB, PDF
58E5 Cwm Taf Cost adjustment WSH
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192.6kB, PDF
58F PR19 IC Water Quality WSH
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1.5MB, PDF
58G PR19 IC Water Network Maintenance WSH
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1.8MB, PDF
58H PR19 IC Customer Minutes Lost Service Improvement WSH
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1.7MB, PDF
58H1 Zonal Studies Methodology WSH
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3.4MB, PDF
58H2 South Wales Water Supply Strategy WSH
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761.7kB, PDF
58I PR19 IC Acceptability of Water Service Improvement WSH
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1.4MB, PDF
58I1 Zonal Studies Process WSH
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3.5MB, PDF
58I2 Zonal Studies Cost Benefit Process WSH
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917.3kB, PDF
58I3 DWI Notices WSH
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6.8MB, PDF
58I4 Acceptability of Drinking Water Costadjustment summary form WSH
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191.8kB, PDF
58J PR19 IC Leakage Improvement WSH
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1.6MB, PDF
58K PR19 IC Water Network plus Growth WSH
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1.1MB, PDF
58L PR19 IC First Time Sewerage WSH
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601.9kB, PDF
58L PR19 IC First Time Sewerage WSH (1)
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601.9kB, PDF
58M Wastewater Network Maintenance WSH
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2MB, PDF
58N Wastewater Network Enhancement WSH
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1.7MB, PDF
58O PR19 IC Llanelli Gowerton WSH
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497kB, PDF
58O1 NRW Letter Amended NEP WSH
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671.8kB, PDF
58P PR19 IC Wastewater NEP WSH
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1.7MB, PDF
58P1 Gwili Gwendraeth Investment Case WSH
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1.3MB, PDF
58Q PR19 IC Wastewater Network plus Growth WSH
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1.4MB, PDF
58R Wastewater Treatment WSH
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1.9MB, PDF
58S Bioresources Assets Maintenance WSH
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1.6MB, PDF
58T PR19 IC Energy WSH
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734.1kB, PDF
58U Cross Service Maintenance WSH
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936.5kB, PDF
Other
Dividend policy and performance related pay WSH
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510.7kB, PDF
Jacobs DCWW PR19 assurance letter WSH
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460.5kB, PDF
PR19 Assurance and Governance WSH
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688.8kB, PDF
Risks and Uncertainties WSH
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571kB, PDF
Water Resilient Communities - Rhondda Fach Interim Report WSH
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1.3MB, PDF
Models and Data
40 PR19 Briefing for Ofwat NonExecutive Directors and senior leadership WSH
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1MB, PDF
41 PR19 Briefing for Ofwat NonExecutive Directors and senior leadership Cover Note
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409.2kB, PDF
45 CCG Report Executive Summary Word Document
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523.1kB, DOCX
45 CCG Report Executive Summary Word Document (1)
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523.1kB, DOCX
Bill-Waterfall-Model-updated-30-July WSH
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327.7kB, XLSM
Changes to PR19 data tables at 28 September 2018 WSH
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25.3kB, DOCX
Company-Business-Plan-Presentation-pro-forma-guidance-tables WSH
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133.1kB, XLSX
IAP-pro-forma WSH v1
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34.2kB, XLSX
PR19 Bill Waterfall Cover Note WSH
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316.9kB, PDF
PR19-Business-plan-data-tables-June-2018-WSH
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5.8MB, XLSB
PR19BusinessplandatatablesJune2018WSH updated 11 Oct 18
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5.9MB, XLSB
PR19-RCV-adjustments-feeder-model-June-2018-update WSH
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302.4kB, XLSM
PR19-Revenue-adjustments-feeder-model-June-2018-update WSH
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190.4kB, XLSM
Welsh Water Retail Tables Commentaries
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484.9kB, PDF
Welsh Water Wastewater Services Table Commentaries WWS WWN Bio
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1.6MB, PDF
Welsh Water Water Services Table Commentaries WS WN WR
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1.6MB, PDF
IAP: Data Tables
Data tables changes April 2019 WSH
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482.3kB, PDF
Financial Model
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11.4MB, XLSB
PR19-Business-plan-data-tables-Jan2019 WSH
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9.1MB, XLSB
Welsh Water Appointed Table Commentaries April 2019
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3.2MB, PDF
Welsh Water Retail Tables Commentaries April 2019
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9.1MB, XLSB
Welsh Water Retail Tables Commentaries April 2019
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832kB, PDF
Welsh Water Wastewater Services Table Commentaries WWS WWN Bio April 2019
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2.7MB, PDF
Welsh Water Water Services Table Commentaries WS WN WR April 2019
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2.7MB, PDF
IAP: Supporting Documents
B210WSHCEA1 Cost Adjustment Claim Welsh Language Service costs WSH
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3.2MB, PDF
B211WSHCEA1 Water Resilience IAP Response
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1.4MB, PDF
B212WSHCEA1 Cwm Taf water supply strategy IAP response
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6.9MB, PDF
B214WSHCEA1 Lead Pipes IAP Response
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838.4kB, PDF
B215WSHCEA1 Cost Adjustment Claim AOW
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2.8MB, PDF
B216WSHCEA1 Network Quality New legal obligations IAP response
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4.3MB, PDF
B217WSHCEA1 Leakage IAP response
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1MB, PDF
B218WSHCEA1 Project Cartref Investment Case WSH
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668.2kB, PDF
B219WSHCEA1 Enhancement to Supply Demand Balance IAP response WRMP
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787.6kB, PDF
B21WSHOC Performance Commitments IAP Response
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730.3kB, PDF
B220WSHCEA1 Improving Drought Resilience
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8.3MB, PDF
B221WSHCEA1 Wastewater Resilience Investment Case
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1.3MB, PDF
B222WSHCEA1 Wastewater Growth IAP Response
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2.8MB, PDF
B223WSHCEA1 Storage schemes to reduce spill frequency IAP response
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1.1MB, PDF
B224WSHCEA1 Sanitary Parameters IAP Response
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774.3kB, PDF
B22WSHOC Performance Commitments and Deadbands
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3.2MB, PDF
B23WSHOC Performance Commitment definitions IAP Response
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1.2MB, PDF
B24WSHOC Outcome Delivery Incentives IAP Response
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2.6MB, PDF
B25WSHOC Information on Supplementary Customer Engagement
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580.5kB, PDF
B26WSHOC DMEX IAP Response
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844.5kB, PDF
B27WSHLR Resilience measures and systems approach
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1.5MB, PDF
B28WSHCEA1 Cost Assessment Methodology
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664.1kB, PDF
B2WSHCEA3 WINEP NEP Uncertainty Mechanism
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717.4kB, PDF
B2WSHCMIA1 Bioresources Plan
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600.5kB, PDF
B2WSHCMIA2 Bioresources Revenue
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510.9kB, PDF
B2WSHCMIA4 Bid Assessment Framework
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1.5MB, PDF
B2WSHCMIA5 DPC Suitability Assessment Merthyr
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1.4MB, PDF
B2WSHCMIA6 DPC Suitability Assessment Gwili Gwendraeth
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733kB, PDF
B2WSHCMIB1 Collaborative Research
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471.2kB, PDF
B2WSHLRA3 Asset Health
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1.4MB, PDF
B2WSHOCA2 Annual Performance Reporting
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405.9kB, PDF
B2WSHOCA21 Risk of Severe Restrictions in a Drought
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496kB, PDF
B2WSHOCA22 Risk of Sewer flooding in a severe storm
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730.9kB, PDF
B2WSHOCA24 Unplanned Outages
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775.8kB, PDF
B2WSHOCA36 Customer Trust
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463.3kB, PDF
B2WSHOCA4 ODI Rates
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516.8kB, PDF
B2WSHOCA8 Customer Protection
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367kB, PDF
B2WSHPDA1 Land Sales
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294.3kB, PDF
B2WSHPDA3 Residential Retail
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402.2kB, PDF
B2WSHPDA5 Expenditure on Loughor Estuary
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556.2kB, PDF
B2WSHRRA2 Totex Asymmetry
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438.9kB, PDF
B2WSHRRA4 Target Credit Rating
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469.4kB, PDF
B2WSHRRA6 RCV Runoff Rates Methodology
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486.7kB, PDF
B3A1 Welsh Water Appointed Table Commenataries April 2019
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3.2MB, PDF
IAP: Response - April 2019 Resubmission
Fast Track Draft Determination Response
Fast Track Draft Determination Response
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199.7kB, PDF
Marketplace for ideas publications
Ofwats determination of a cost-performance frontier at PR19
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455.5kB, PDF
Draft Determination Representations August 2019
Chairmans Letter
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792.1kB, PDF
PR19 DD WSHDDCE10 DPC Cwm Taf Water Supply Strategy
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445.3kB, PDF
PR19 DD WSHDDCE11 Residential retail
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951.9kB, PDF
PR19 DD WSHDDCE1Wholesale base expenditure
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582.2kB, PDF
PR19 DD WSHDDCE2 Loughor
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446kB, PDF
PR19 DD WSHDDCE3 Network water quality New Legal obligations
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151.3kB, PDF
PR19 DD WSHDDCE7 Customer Access and Recreation for PR19
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1.2MB, PDF
PR19 DD WSHDDCE8 Tywyn Aberdyfi SDB
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631.4kB, PDF
PR19 DD WSHDDCE9 DWMPs
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483.7kB, PDF
PR19 DD WSHDDOC1 Performance Commitments
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3MB, PDF
PR19 DD WSHDDOC2ODIs
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586.1kB, PDF
PR19 DD WSHDDOO1 CMeX
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871.7kB, PDF
PR19 DD WSHDDOO2 DMeX
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754.5kB, PDF
PR19 DD WSHDDOO3 Response to proposed approach to regulating developer services
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651.3kB, PDF
PR19 DD WSHDDOO5 Miscellaneous Action Responses
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1.1MB, PDF
PR19 DD WSHDDRR1 WACC and Financeability
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847.8kB, PDF
PR19 DD WSHDDRR2 PAYG and RCV run off rates
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757.6kB, PDF
PR19 DD WSHMTH1 Ofwats approach to determining the costservice frontier
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204.8kB, PDF
Representation proforma
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67.2kB, XLSX
WSHCMIA3IAP response DWMP
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1.2MB, PDF
WSHLRA2 Appendix 1 DCWW resilience Systems approach
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5.1MB, PDF
WSHLRA2 Appendix 2 service measure framework
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18.5kB, XLSX
WSHLRA2IAP response Resilience Action plan
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1.3MB, PDF
Draft Determination Response: Data Tables and Commentaries
DD Representations Data Template
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95kB, XLSX
PR19 DD WSH Developer services data request commentary
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380kB, PDF
PR19-draft-determinations-Developer-services-data-request-new-post-DD-WSH
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2.2MB, XLSX
Welsh Water Appointed Table Commentaries
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3.3MB, PDF
Welsh Water OC Table Commentaries
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1.1MB, PDF
Welsh Water Retail Tables Commentaries
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1.1MB, PDF
Welsh Water Wastewater Services Table Commentaries
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2.6MB, PDF
Welsh Water Water Services Table Commentaries
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2.3MB, PDF
WSH Financial Model DD August Plan
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11.4MB, XLSB
WSH PR19 Business Plan Data Tables
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8.9MB, XLSB
Draft Determination Response: Data Tables and Commentaries
1 Cost Assessment and Service Performance
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455.5kB, PDF
2A Rainfall Report for Welsh Water
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19.1MB, PDF
2B WW_Exec_Summary
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256kB, PDF
3 Comparative Measurement of Pollution Incidents
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1.2MB, PDF
4 Benefit Analysis Education Programme
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727.6kB, PDF
5 Welsh Water letter to Ofwat D-Mex
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383.4kB, PDF
6 Ft1 calculations
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15.6kB, XLSX
7 PwC B2C maturity model billing and collections August 2019
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245kB, PDF