UK Public Sector Contracts & Tenders

Scope Update to Preliminary Market Engagement Notice This update to the Preliminary Market Engagement Notice published on 24 July 2026 (notice identifier 2026/S 000-070264) provides details of the next phase of market engagement for the Cwm Taf Water Supply Strategy, ahead of the planned procurement launch in Q1 2027. The “Engagement” section has been revised to summarise engagement undertaken to date and to provide information on a Meet The Buyer event on 10 November 2026, and details in relation to a data room to be made available before planned procurement launch. These arrangements replace the corresponding Engagement and Registration section in the 24 July 2026 notice. Earlier engagement in respect of the Cwm Taf WSS was advertised in the notice published on 10 November 2025 (notice identifier 2025/S 000-072565). Except as expressly amended by this update, the information published in notice 2026/S 000-070264 remains unchanged. Description Dŵr Cymru Welsh Water (DCWW) is the largest water and sewerage company in Wales and the sixth largest operating in England and Wales. Responsible for providing high-quality drinking water for over three million customers and for taking away, treating and properly disposing of the wastewater that is produced. DCWW is committed to securing water supplies for future generations while protecting the environment. Our primary responsibility is to operate, maintain and upgrade this large network of assets to ensure a safe and reliable drinking water supply and to deal effectively with discharges so as to protect the environment. As part of its Cwm Taf Water Supply Strategy (“Cwm Taf WSS”), DCWW is seeking to progress a major investment project to design and build new water treatment works and develop an existing water treatment works (the Cwm Taf WSS Procurement Scheme). The Cwm Taf WSS Procurement Scheme has been designated under Ofwat's Direct Procurement for Customers (DPC) programme. The Cwm Taf WSS Procurement Scheme is intended to be delivered primarily on two separate sites, one located in the vicinity of Merthyr Tydfil, South Wales and one within the boundaries of the Bannau Brycheiniog National Park. DCWW is looking to appoint a Competitively Appointed Provider (CAP) utilising the Direct Procurement for Customers (DPC) model. The scheme includes the Design, Build and Finance (DBF) of a new water treatment works on an agricultural land at Dan-y-Castell Farm, along with a raw water pumping station at Pontsticill (referred to as the Dan-y-Castell project) and Llwyn-onn Water Treatment Works upgrade (referred to as the Llwyn-onn project). The Cwm Taf WSS Procurement Scheme is therefore a two-site project comprising Dan-y-Castell (currently with an estimated value of £434,400,000 including VAT / £362,000,000 excluding VAT) and Llwyn-onn (currently with an estimated value of £232,800,000 including VAT / £194,000,000 excluding VAT). The Cwm Taf WSS Procurement Scheme includes (but is not limited to): • Water Treatment Works • Pumping stations • Transfer pipelines • Environmental and mitigation measures • Treated Water Storage Across its market engagement activities, DCWW has been seeking engagement from organisations capable of supporting the delivery and financing of a secure, sustainable and value-driven solution for customers through this major DPC-designated infrastructure project. The engagement activities to date and activities highlighted in the update to this notice will support the ongoing development of the procurement and commercial strategies (and associated documentation) and will help inform the delivery of the Cwm Taf WSS and the sustainable and environmental objectives of the Welsh Government, including (but not limited to) the Wellbeing of Future Generations (Wales) Act 2015. The current market engagement activities and participation arrangements are set out in the Engagement section below. Following a competitive procurement competition, CAP contract award is anticipated to be late 2028. The CAP contract will progress the Scheme through detailed design, construction, testing and commissioning activities, including an anticipated 12 month Reliability and Optimisation Period. The Scheme will then be completed to allow commencement of the DCWW managed operational term. All dates are indicative. All values and dates set out in this preliminary market engagement notice are indicative. This notice is not a call for competition, a tender notice, or a commitment to procure.

Cwmpas Diweddariad i'r Hysbysiad Ymgysylltu â'r Farchnad Rhagarweiniol Mae'r diweddariad hwn i'r Hysbysiad Ymgysylltu â'r Farchnad Rhagarweiniol a gyhoeddwyd ar 24 Gorffennaf 2026 (dynodwr yr hysbysiad 2026/S 000-070264) yn rhoi manylion am gam nesaf yr ymgysylltu â'r farchnad ar gyfer Strategaeth Cyflenwad Dŵr Cwm Taf, cyn y lansiad caffael arfaethedig yn Ch1 2027. Mae'r adran "Ymgysylltu" wedi'i diwygio i grynhoi'r ymgysylltu a wnaed hyd yma ac i ddarparu gwybodaeth am ddigwyddiad Cwrdd â'r Prynwr ar 10 Tachwedd 2026, a manylion mewn perthynas ag ystafell ddata sydd ar gael cyn lansio caffael arfaethedig. Mae'r trefniadau hyn yn disodli'r adran Ymgysylltu a Chofrestru cyfatebol yn yr hysbysiad 24 Gorffennaf 2026. Hysbysebwyd ymgysylltiad cynharach mewn perthynas â Strategaeth Cyflenwad Dŵr Cwm Taf yn yr hysbysiad a gyhoeddwyd ar 10 Tachwedd 2025 (dynodwr yr hysbysiad 2025/S 000-072565). Ac eithrio fel y diwygiwyd yn benodol gan y diweddariad hwn, mae'r wybodaeth a gyhoeddwyd yn hysbysiad 2026/S 000-070264 yn parhau i fod heb ei newid. Disgrifiad Dŵr Cymru yw'r cwmni dŵr a charthffosiaeth mwyaf yng Nghymru a'r chweched mwyaf sy'n gweithredu yng Nghymru a Lloegr. Yn gyfrifol am ddarparu dŵr yfed o ansawdd uchel i dros dair miliwn o gwsmeriaid ac am gludo ymaith, trin a gwaredu'n briodol y dŵr gwastraff sy'n cael ei gynhyrchu. Mae Dŵr Cymru wedi ymrwymo i sicrhau cyflenwadau dŵr ar gyfer cenedlaethau'r dyfodol wrth ddiogelu'r amgylchedd. Ein prif gyfrifoldeb yw gweithredu, cynnal ac uwchraddio'r rhwydwaith mawr hwn o asedau i sicrhau cyflenwad dŵr yfed diogel a dibynadwy ac i ymdrin yn effeithiol â gollyngiadau er mwyn diogelu'r amgylchedd. Fel rhan o'i Strategaeth Cyflenwi Dŵr Cwm Taf ("SCD Cwm Taf"), mae Dŵr Cymru yn ceisio bwrw ymlaen â phrosiect buddsoddi mawr i ddylunio ac adeiladu gwaith trin dŵr newydd a datblygu gwaith trin dŵr presennol (Cynllun Caffael SCD Cwm Taf). Mae Cynllun Caffael SCD Cwm Taf wedi'i ddynodi o dan raglen Caffael Uniongyrchol i Gwsmeriaid (DPC) Ofwat. Bwriedir cyflwyno Cynllun Caffael SCD Cwm Taf yn bennaf ar ddau safle ar wahân, un wedi'i leoli yng nghyffiniau Merthyr Tudful, de Cymru ac un o fewn ffiniau Parc Cenedlaethol Bannau Brycheiniog. Mae Dŵr Cymru yn bwriadu penodi Darparwr Penodedig yn Gystadleuol (PAC) gan ddefnyddio'r model Caffael Uniongyrchol i Gwsmeriaid (DPC). Mae'r cynllun yn cynnwys Dylunio, Adeiladu a Chyllido gwaith trin dŵr newydd ar dir amaethyddol yn Fferm Dan-y-Castell, ynghyd â gorsaf bwmpio dŵr crai ym Mhontsticill (y cyfeirir ati fel prosiect Dan-y-Castell) ac uwchraddio Gwaith Trin Dŵr Llwyn-onn (y cyfeirir ato fel prosiect Llwyn-onn). Felly, mae Cynllun Caffael SCD Cwm Taf yn brosiect ar ddau safle sy'n cynnwys Dan-y-Castell (gydag amcangyfrif gwerth £434,400,000 gan gynnwys TAW / £362,000,000 heb gynnwys TAW) a Llwyn-onn (gydag amcangyfrif gwerth £232,800,000 gan gynnwys TAW / £194,000,000 heb gynnwys TAW). Mae Cynllun Caffael SCD Cwm Taf yn cynnwys (ond heb fod yn gyfyngedig i): · Gwaith Trin Dŵr · Gorsafoedd pwmpio · Piblinellau trosglwyddo · Mesurau amgylcheddol a lliniaru · Storio Dŵr wedi'i drin Ar draws ei weithgareddau ymgysylltu â'r farchnad, mae Dŵr Cymru wedi bod yn ceisio ymgysylltu â sefydliadau sy'n gallu cefnogi cyflwyno a chyllido datrysiad diogel, cynaliadwy a a ysgogir gan werth i gwsmeriaid drwy'r prosiect seilwaith mawr hwn sydd wedi ei ddynodi yn DPC. Bydd y gweithgareddau ymgysylltu hyd yma a'r gweithgareddau a amlygwyd yn y diweddariad i'r hysbysiad hwn yn cefnogi datblygiad parhaus y strategaethau caffael a masnachol (a'r dogfennau cysylltiedig) a byddant yn helpu i lywio'r gwaith o gyflawni SCD Cwm Taf ac amcanion cynaliadwy ac amgylcheddol Llywodraeth Cymru, gan gynnwys (ond heb fod yn gyfyngedig i) Ddeddf Llesiant Cenedlaethau'r Dyfodol (Cymru) 2015. Mae'r gweithgareddau ymgysylltu â'r farchnad a'r trefniadau cyfranogi cyfredol wedi'u nodi yn yr adran Ymgysylltu isod. Yn dilyn cystadleuaeth gaffael gystadleuol, disgwylir dyfarniad contract PAC ddiwedd 2028. Bydd contract y PAC yn bwrw ymlaen â'r Cynllun trwy weithgareddau dylunio, adeiladu, profi a chomisiynu manwl, gan gynnwys Cyfnod Dibynadwyedd ac Optimeiddio disgwyliedig o 12 mis. Bydd y Cynllun wedyn yn cael ei gwblhau i ganiatáu dechrau'r tymor gweithredol a reolir gan Dŵr Cymru. Mae'r holl ddyddiadau yn arwyddocaol. Mae'r holl werthoedd a dyddiadau a nodir yn yr hysbysiad ymgysylltu â'r farchnad rhagarweiniol hwn yn ddangosol. Nid yw'r hysbysiad hwn yn alwad am gystadleuaeth, yn hysbysiad tendr, nac yn ymrwymiad i gaffael.

Dŵr Cymru Welsh Water (DCWW) is seeking suitably qualified and experienced suppliers to provide wastewater sludge cake haulage services across four Lots: - **Lot 1 – Intercompany Haulage (North Wales)** - **Lot 2 – Intercompany Haulage (South Wales)** - **Lot 3 – Cake-to-Land Haulage (North Wales)** - **Lot 4 – Cake-to-Land Haulage (South Wales)** Services include planned and ad hoc collection, transportation and delivery of sludge cake between operational sites, treatment facilities, approved agricultural land and other authorised destinations, including associated activities where required. Suppliers may tender for one or more Lots. DCWW intends to appoint Primary Suppliers and may appoint Reserve Suppliers in accordance with the published allocation methodology. The Transfer of Undertakings (Protection of Employment) Regulations 2006 (TUPE) are expected to apply to this procurement. Relevant TUPE information will be shared with suppliers on **6 November 2026**, subject to receipt of a signed Non-Disclosure Agreement (NDA). The NDA will be issued through the eSourcing Portal by **30 October 2026**, alongside the responses to tender clarification questions. The contract will have an initial term of four years, with four optional one-year extensions, giving a maximum duration of eight years. The procurement will be conducted using the Competitive Flexible Procedure under the Procurement Act 2023.

Loss Prevention Certification Board (LPCB) Certified Security Equipment are required to strengthen the physical security of DCWW’s critical clean water and wastewater infrastructure and to comply with statutory and industry security standards. These assets require enhanced physical security to prevent unauthorised access, vandalism, theft, sabotage, and contamination risks. The framework covers the supply, installation, and optional maintenance of LPCB certified security equipment including covers, doors, bar sets, cages, enclosures, and cylinder clamps across operational assets such as reservoirs, treatment works, pumping stations, and service reservoirs. The scope also includes conducting site surveys and the creation of site plans to provide recommendations to DCWW to satisfy Drinking Water Inspectorate (DWI) standards. Suppliers are required to undertake site surveys and recommend the appropriate security measures needed for each asset to achieve the required LPCB security rating. Two Bidders will be awarded per Lot within the Framework Agreement on a primary/secondary basis. SCOPE OF GOODS AND SERVICES Goods The framework includes five product areas across: o Lot 1 Covers – the supply, installation and support of LPCB security-rated covers; o Lot 2 Double/single entry doors – certified security doors for operational assets; o Lot 3 Bar sets, cages and steel enclosures: – certified physical security products used to protect assets and equipment; o Lot 4 GRP enclosures – certified GRP kiosks or enclosures for relevant site requirements; and o Lot 5 Roller shutter doors – certified roller shutter doors where required across the estate. Services The scope of services includes: o conducting site surveys to verify requirements o creation of site plans to enable compliance to DWI standards Call-offs will be made by direct award to the Primary Supplier for the relevant Lot. The Primary Supplier will be expected to fulfil all requirements in accordance with the Framework Agreement terms, including the agreed service levels, delivery times and performance standards.

Dwr Cymru Cyfyngedig (DCC) is re-procuring its principal energy contracts in four lots. Lot 1, electricity import and export: supply to circa 4,400 MPANs, flexible purchasing and price-fixing services, PPA sleeving, export route to market and settlement. Lot 2, gas import: non-domestic supply of circa 67.8 GWh per annum, purchasing and price-fixing services against DCC instructions, and all industry arrangements required to deliver supply. Lot 3, gas export: purchase and offtake of biomethane injected into the gas distribution network, circa 45.8 GWh per annum. Lot 4, metering services: HH and NHH MOP, data collection and aggregation and successor MHHS roles, NHH remediation and AMR upgrade programmes, gas metering and sub-metering. The contract term for every lot runs from that lot's commencement date to 31 March 2032, with extension options of 3 years and then a further 2 years, exercisable at DCC's sole discretion. All lots are co-terminous, with the initial period ending 31 March 2032. Commencement is 1 April 2027 for Lots 1, 2 and 4, and 1 July 2027 for Lot 3. Suppliers may bid for any number of lots. Each lot bid is priced and evaluated independently and is independently awardable.