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ClosedFind a Tender · UK4

CM3543 ASP Diffuser Asset Replacement

Buyer: YORKSHIRE WATER SERVICES LIMITED →

View official notice ↗Official source

BuyerYORKSHIRE WATER SERVICES LIMITED
StatusClosed
Deadline12 Aug 2026
Value£9,273,550
Published21 Jul 2026

What is being bought

Yorkshire Water is launching a tender notice of a procurement process for the provision of diffuser system services across its wastewater treatment asset portfolio. The proposed framework will support the assessment, design, supply, installation, commissioning and replacement of diffuser systems within Activated Sludge Plants (ASPs) and associated wastewater treatment processes. The framework is intended to provide end-to-end scheme delivery, including condition assessment of existing assets, design of replacement or new diffuser systems, supply of diffusers and associated mechanical components, installation works, commissioning, performance validation and phased handover to maintain operational continuity. Suppliers with relevant experience and capability are invited to express interest and participate in the CoP.

Delivery location

UK, GB

Categories

Machinery for the treatment of sewage 42996000Sewage treatment works 45232421Sludge-treatment works 45232422Sewage plant equipment 45252130Installation services of electrical and mechanical equipment 51100000Engineering design services 71320000Sewage treatment services 90420000

Lot details

Lot 1

No lot description published.

Statusactive
Value£9,273,550
Contract periodFrom 1 Jan 2027 to 31 Dec 2030

Award criteria
Commercial Questionnaire (50%)
Quality Questionnaire (50%)

What is included

ItemCategoryQuantity
1Machinery for the treatment of sewage, Sewage treatment works, Sludge-treatment works, Sewage plant equipment, Installation services of electrical and mechanical equipment, Engineering design services, Sewage treatment servicesNot published

Comparable-procurement analytics

Benchmarked against retained Find a Tender procedures with CPV division 42. The category anchor is Machinery for the treatment of sewage (42996000); this is a deliberately broad market comparator. The comparison is shown at several levels rather than pretending one company or region is always the best benchmark.

Comparison setProceduresReported bids per procedureNamed award suppliersPrice evidence
Market: CPV division 423,0194 median · 51.9 average (1,182 of 3,019 with a bid count)5.9 average (1,276 of 3,019 with named award suppliers)Not published
Same buyer2Not publishedNot publishedNot published
Delivery region: UK73511 median · 170.9 average (254 of 735 with a bid count)13.3 average (272 of 735 with named award suppliers)Not published
Similar published value (0.5×–2×)1392 median · 2 average (1 of 139 with a bid count)1 average (1 of 139 with named award suppliers)Not published

“Reported bids” is an official aggregate, sometimes reported per lot; it is the closest available competition measure. “Named award suppliers” are winners, not all applicants.

Price-outcome signal

Not enough comparable procedures currently publish both a GBP tender value and a usable lowest-valid-bid value to calculate a responsible price-reduction benchmark. Tenderline deliberately does not infer a saving from named award suppliers or from missing award values.

Procurement strategy & market signals

Framework agreementYes
Dynamic purchasing systemNot published
Competitive procurementNot published
Recurring requirementNot published
Procurement method rationaleNot published
Rationale classificationsNot published
Special regimeutilities
Covered byNot published
Submission policyallowed
Selection criteriaNot published
Risk detailsNot published

Planning & early market engagement

BudgetNot published
No-engagement rationaleNot published
Planning documents0
Planning milestones0

No planning milestones published.

Related procurements

No linked framework, prior procurement or reprocurement published.

Documents & submission route

Source data inventory

Diagnostic view. “Not published” means this current release does not provide a value.

OCIDocds-h6vhtk-06b2d2
Latest release ID068534-2026
Latest release timestampTue Jul 21 2026 08:47:37 GMT+0000 (Coordinated Universal Time)
Sourcefind-a-tender
Official notice URLhttps://www.find-tender.service.gov.uk/Notice/068534-2026
Tender statusactive
Procurement methodselective
Procurement method detailsCompetitive flexible procedure
Main procurement categorygoods
Above thresholdYes
Legal basis2023/54
Tender period: startNot published
Tender period: endNot published
Expression of interest deadline2026-08-12T23:59:00+01:00
Enquiry deadlineNot published
Award period: startNot published
Award period: end2026-11-20T23:59:59Z
Submission method detailsTenders must be submitted electronically via SAP Ariba, Yorkshire Water's e-procurement portal https://s1-eu.ariba.com/Sourcing/Main/aw?awh=r&awssk=fy5dbBftDhoBNSzh&realm=YorkshireWater&... Suppliers will not be able to view or access the tender in SAP Ariba unless they have been invited by Yorkshire Water through the portal. Those who expressed interest through the UK2 have been invited to participate. If you wish to participate but are not yet registered as a Yorkshire Water supplier, please email: Luis.Barreiros@Yorkshirewater.co.uk and include the full legal company name, and the email address you wish to register. You will then be issued with a registration request and an invitation to the tender via SAP Ariba. If you are already registered as a Yorkshire Water supplier but have not received an invitation, please email Luis.Barreiros@Yorkshirewater.co.uk and include your ANID number, your full company name, and your registered Ariba email address, so that an invitation to the tender can be issued. Tender submissions by email or post will not be accepted.
Submission languagesen
Electronic catalogue policyNot published
Total tender value£9,273,550
Tender lots in source1
Tender items in source1
Tender documents in source2
Awards in latest release0
Contracts in latest release0
Parties in latest release1

Notice history

DateEventReference
21 Jul 2026tenderUpdate068534-2026
17 Jul 2026tender067620-2026
11 Jun 2026planning055163-2026

All source data

Unmodified official OCDS data retained by Tenderline for this procurement process.

Complete current OCDS release JSON
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  "id": "068534-2026",
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  "date": "2026-07-21T09:47:37+01:00",
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  },
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        },
        "hasRenewal": true,
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              "numbers": [
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        "contractPeriod": {
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          {
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    ],
    "title": "CM3543 ASP Diffuser Asset Replacement",
    "value": {
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    "status": "active",
    "documents": [
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    "procedure": {
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    },
    "legalBasis": {
      "id": "2023/54",
      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
      "scheme": "UKPGA"
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    "techniques": {
      "frameworkAgreement": {
        "type": "closed",
        "method": "withAndWithoutReopeningCompetition",
        "description": "The framework will operate on a multi-supplier basis, with Yorkshire Water awarding call-off contracts in accordance with the procedures set out in the Framework Agreement. Prices for call-offs will be determined using the pricing schedules established at tender, with the ability to confirm or adjust pricing where permitted by the call-off process.\nCall-off contracts may be awarded either directly, where the framework provides an objective method to identify the most suitable supplier for a defined requirement, or following a further competition among the suppliers appointed to the framework.\nYorkshire Water will apply the framework rules consistently to ensure transparency, fairness and proportionality in allocating work, while enabling flexibility to meet programme needs. The operation of the framework will be governed by the terms of the Framework Agreement and the procedures communicated during the procurement process."
      },
      "hasFrameworkAgreement": true
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    "awardPeriod": {
      "endDate": "2026-11-20T23:59:59Z"
    },
    "description": "Yorkshire Water is launching a tender notice of a procurement process for the provision of diffuser system services across its wastewater treatment asset portfolio.\nThe proposed framework will support the assessment, design, supply, installation, commissioning and replacement of diffuser systems within Activated Sludge Plants (ASPs) and associated wastewater treatment processes. The framework is intended to provide end-to-end scheme delivery, including condition assessment of existing assets, design of replacement or new diffuser systems, supply of diffusers and associated mechanical components, installation works, commissioning, performance validation and phased handover to maintain operational continuity.\nSuppliers with relevant experience and capability are invited to express interest and participate in the CoP.",
    "specialRegime": [
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    "procurementMethodDetails": "Competitive flexible procedure",
    "expressionOfInterestDeadline": "2026-08-12T23:59:00+01:00",
    "additionalProcurementCategories": [
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  },
  "parties": [
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      "roles": [
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      "address": {
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        "telephone": "+351935810056"
      },
      "additionalIdentifiers": [
        {
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          "scheme": "GB-PPON"
        }
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    }
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  "language": "en",
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}
Complete JSON history (3 releases)
21 Jul 2026 · 068534-2026 · tenderUpdate
{
  "id": "068534-2026",
  "tag": [
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  "date": "2026-07-21T09:47:37+01:00",
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    "name": "YORKSHIRE WATER SERVICES LIMITED"
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            "id": "45252130",
            "scheme": "CPV",
            "description": "Sewage plant equipment"
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    "title": "CM3543 ASP Diffuser Asset Replacement",
    "value": {
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    "status": "active",
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    "procedure": {
      "features": "Yorkshire Water will run a multi-stage procurement using the competitive flexible procedure in accordance with the Procurement Act 2023.\nStage 1 - Conditions of Participation (CoP):\nInterested suppliers submit a COP Questionnaire. Responses are assessed against defined pass/fail Selection Criteria to determine whether suppliers meet Yorkshire Water's minimum requirements. Yorkshire Water may conduct one or more rounds of Selection and reserves the right to shortlist suppliers progressing to subsequent stages.\nStage 2 - Contractual Compliance:\nShortlisted suppliers will be invited to review and, where permitted, comment on the Proposed Contract. Yorkshire Water will refine and finalise the contract terms during this stage. Only suppliers who accept the final contract terms will progress to the ITT stage.\nStage 3 - Invitation to Tender (Quality & Commercial):\nSuppliers will submit detailed quality and commercial tenders, which will be evaluated in accordance with the award criteria set out in the ITT documentation.\nFollowing evaluation, Yorkshire Water will identify the most economically advantageous tenders and award places on the Technical Services and Assurance Framework.\nThe procedure structure and indicative timelines are set out in the procurement documents."
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    "description": "Yorkshire Water is launching a tender notice of a procurement process for the provision of diffuser system services across its wastewater treatment asset portfolio.\nThe proposed framework will support the assessment, design, supply, installation, commissioning and replacement of diffuser systems within Activated Sludge Plants (ASPs) and associated wastewater treatment processes. The framework is intended to provide end-to-end scheme delivery, including condition assessment of existing assets, design of replacement or new diffuser systems, supply of diffusers and associated mechanical components, installation works, commissioning, performance validation and phased handover to maintain operational continuity.\nSuppliers with relevant experience and capability are invited to express interest and participate in the CoP.",
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17 Jul 2026 · 067620-2026 · tender
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            "scheme": "CPV",
            "description": "Sewage treatment works"
          },
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            "scheme": "CPV",
            "description": "Sludge-treatment works"
          },
          {
            "id": "45252130",
            "scheme": "CPV",
            "description": "Sewage plant equipment"
          },
          {
            "id": "51100000",
            "scheme": "CPV",
            "description": "Installation services of electrical and mechanical equipment"
          },
          {
            "id": "71320000",
            "scheme": "CPV",
            "description": "Engineering design services"
          },
          {
            "id": "90420000",
            "scheme": "CPV",
            "description": "Sewage treatment services"
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    "title": "CM3543 ASP Diffuser Asset Replacement",
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        "format": "text/html",
        "noticeType": "UK4",
        "description": "Tender notice on Find a Tender",
        "documentType": "tenderNotice",
        "datePublished": "2026-07-17T11:04:11+01:00"
      }
    ],
    "procedure": {
      "features": "Yorkshire Water will run a multi-stage procurement using the competitive flexible procedure in accordance with the Procurement Act 2023.\nStage 1 - Conditions of Participation (CoP):\nInterested suppliers submit a COP Questionnaire. Responses are assessed against defined pass/fail Selection Criteria to determine whether suppliers meet Yorkshire Water's minimum requirements. Yorkshire Water may conduct one or more rounds of Selection and reserves the right to shortlist suppliers progressing to subsequent stages.\nStage 2 - Contractual Compliance:\nShortlisted suppliers will be invited to review and, where permitted, comment on the Proposed Contract. Yorkshire Water will refine and finalise the contract terms during this stage. Only suppliers who accept the final contract terms will progress to the ITT stage.\nStage 3 - Invitation to Tender (Quality & Commercial):\nSuppliers will submit detailed quality and commercial tenders, which will be evaluated in accordance with the award criteria set out in the ITT documentation.\nFollowing evaluation, Yorkshire Water will identify the most economically advantageous tenders and award places on the Technical Services and Assurance Framework.\nThe procedure structure and indicative timelines are set out in the procurement documents."
    },
    "legalBasis": {
      "id": "2023/54",
      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
      "scheme": "UKPGA"
    },
    "techniques": {
      "frameworkAgreement": {
        "type": "closed",
        "method": "withAndWithoutReopeningCompetition",
        "description": "The framework will operate on a multi-supplier basis, with Yorkshire Water awarding call-off contracts in accordance with the procedures set out in the Framework Agreement. Prices for call-offs will be determined using the pricing schedules established at tender, with the ability to confirm or adjust pricing where permitted by the call-off process.\nCall-off contracts may be awarded either directly, where the framework provides an objective method to identify the most suitable supplier for a defined requirement, or following a further competition among the suppliers appointed to the framework. \nYorkshire Water will apply the framework rules consistently to ensure transparency, fairness and proportionality in allocating work, while enabling flexibility to meet programme needs. The operation of the framework will be governed by the terms of the Framework Agreement and the procedures communicated during the procurement process."
      },
      "hasFrameworkAgreement": true
    },
    "awardPeriod": {
      "endDate": "2026-11-20T23:59:59Z"
    },
    "description": "Yorkshire Water is conducting preliminary market engagement to inform the development of a procurement strategy for the provision of diffuser system services across its wastewater treatment asset portfolio. \nThe proposed framework will support the assessment, design, supply, installation, commissioning and replacement of diffuser systems within Activated Sludge Plants (ASPs) and associated wastewater treatment processes. The framework is intended to provide end-to-end scheme delivery, including condition assessment of existing assets, design of replacement or new diffuser systems, supply of diffusers and associated mechanical components, installation works, commissioning, performance validation and phased handover to maintain operational continuity. \nSuppliers with relevant experience and capability are invited to express interest and participate in the CoP.",
    "specialRegime": [
      "utilities"
    ],
    "aboveThreshold": true,
    "submissionTerms": {
      "languages": [
        "en"
      ],
      "electronicSubmissionPolicy": "allowed"
    },
    "procurementMethod": "selective",
    "mainProcurementCategory": "goods",
    "submissionMethodDetails": "Tenders must be submitted electronically via SAP Ariba, Yorkshire Water's e-procurement portal https://s1-eu.ariba.com/Sourcing/Main/aw?awh=r&awssk=fy5dbBftDhoBNSzh&realm=YorkshireWater&... Suppliers will not be able to view or access the tender in SAP Ariba unless they have been invited by Yorkshire Water through the portal. Those who expressed interest through the UK2 have been invited to participate.\nIf you wish to participate but are not yet registered as a Yorkshire Water supplier, please email: Luis.Barreiros@Yorkshirewater.co.uk and include the full legal company name, and the email address you wish to register. You will then be issued with a registration request and an invitation to the tender via SAP Ariba.\nIf you are already registered as a Yorkshire Water supplier but have not received an invitation, please email Luis.Barreiros@Yorkshirewater.co.uk and include your ANID number, your full company name, and your registered Ariba email address, so that an invitation to the tender can be issued.\nTender submissions by email or post will not be accepted.",
    "procurementMethodDetails": "Competitive flexible procedure",
    "expressionOfInterestDeadline": "2026-08-12T23:59:59+01:00",
    "additionalProcurementCategories": [
      "services"
    ]
  },
  "parties": [
    {
      "id": "GB-COH-02366682",
      "name": "YORKSHIRE WATER SERVICES LIMITED",
      "roles": [
        "buyer"
      ],
      "address": {
        "region": "UKE41",
        "country": "GB",
        "locality": "Bradford",
        "postalCode": "BD6 2SZ",
        "countryName": "United Kingdom",
        "streetAddress": "Western House"
      },
      "details": {
        "classifications": [
          {
            "id": "privateUtility",
            "scheme": "UK_CA_TYPE",
            "description": "Private utility"
          }
        ]
      },
      "identifier": {
        "id": "02366682",
        "scheme": "GB-COH"
      },
      "contactPoint": {
        "name": "Luis.Barreiros@Yorkshirewater.co.uk",
        "email": "Luis.Barreiros@Yorkshirewater.co.uk",
        "telephone": "+351935810056"
      },
      "additionalIdentifiers": [
        {
          "id": "PXGT-3622-WXBQ",
          "scheme": "GB-PPON"
        }
      ]
    }
  ],
  "language": "en",
  "initiationType": "tender"
}
11 Jun 2026 · 055163-2026 · planning
{
  "id": "055163-2026",
  "tag": [
    "planning"
  ],
  "date": "2026-06-11T12:32:07+01:00",
  "ocid": "ocds-h6vhtk-06b2d2",
  "buyer": {
    "id": "GB-COH-02366682",
    "name": "YORKSHIRE WATER SERVICES LIMITED"
  },
  "tender": {
    "id": "CM3543",
    "lots": [
      {
        "id": "1",
        "status": "planning",
        "hasRenewal": true,
        "contractPeriod": {
          "endDate": "2031-11-30T23:59:59Z",
          "startDate": "2026-12-01T00:00:00Z",
          "maxExtentDate": "2034-11-30T23:59:59Z"
        }
      }
    ],
    "items": [
      {
        "id": "1",
        "relatedLot": "1",
        "deliveryAddresses": [
          {
            "region": "UK",
            "country": "GB",
            "countryName": "United Kingdom"
          }
        ],
        "additionalClassifications": [
          {
            "id": "42996000",
            "scheme": "CPV",
            "description": "Machinery for the treatment of sewage"
          },
          {
            "id": "45232421",
            "scheme": "CPV",
            "description": "Sewage treatment works"
          },
          {
            "id": "45232422",
            "scheme": "CPV",
            "description": "Sludge-treatment works"
          },
          {
            "id": "45252130",
            "scheme": "CPV",
            "description": "Sewage plant equipment"
          },
          {
            "id": "51100000",
            "scheme": "CPV",
            "description": "Installation services of electrical and mechanical equipment"
          },
          {
            "id": "71320000",
            "scheme": "CPV",
            "description": "Engineering design services"
          },
          {
            "id": "90420000",
            "scheme": "CPV",
            "description": "Sewage treatment services"
          }
        ]
      }
    ],
    "title": "CM3543 ASP Diffuser Asset Replacement",
    "value": {
      "amount": 8400000,
      "currency": "GBP",
      "amountGross": 8400000
    },
    "status": "planning",
    "legalBasis": {
      "id": "2023/54",
      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
      "scheme": "UKPGA"
    },
    "techniques": {
      "hasFrameworkAgreement": true
    },
    "description": "Yorkshire Water is conducting preliminary market engagement to inform the development of a procurement strategy for the provision of diffuser system services across its wastewater treatment asset portfolio.\nThe proposed framework will support the assessment, design, supply, installation, commissioning and replacement of diffuser systems within Activated Sludge Plants (ASPs) and associated wastewater treatment processes. The framework is intended to provide end-to-end scheme delivery, including condition assessment of existing assets, design of replacement or new diffuser systems, supply of diffusers and associated mechanical components, installation works, commissioning, performance validation and phased handover to maintain operational continuity.\nSuppliers with relevant experience and capability are invited to express interest and participate in early market discussions.\nThis notice does not constitute a call for competition, a commitment to procure, or a commitment to enter into any contractual arrangement. Information gathered through this engagement will be used solely to inform Yorkshire Water's procurement strategy and future sourcing decisions.",
    "specialRegime": [
      "utilities"
    ],
    "aboveThreshold": true,
    "mainProcurementCategory": "goods",
    "additionalProcurementCategories": [
      "services"
    ]
  },
  "parties": [
    {
      "id": "GB-COH-02366682",
      "name": "YORKSHIRE WATER SERVICES LIMITED",
      "roles": [
        "buyer"
      ],
      "address": {
        "region": "UKE41",
        "country": "GB",
        "locality": "Bradford",
        "postalCode": "BD6 2SZ",
        "countryName": "United Kingdom",
        "streetAddress": "Western House"
      },
      "details": {
        "classifications": [
          {
            "id": "privateUtility",
            "scheme": "UK_CA_TYPE",
            "description": "Private utility"
          }
        ]
      },
      "identifier": {
        "id": "02366682",
        "scheme": "GB-COH"
      },
      "contactPoint": {
        "email": "Luis.Barreiros@Yorkshirewater.co.uk"
      },
      "additionalIdentifiers": [
        {
          "id": "PXGT-3622-WXBQ",
          "scheme": "GB-PPON"
        }
      ]
    }
  ],
  "language": "en",
  "planning": {
    "documents": [
      {
        "id": "055163-2026",
        "url": "https://www.find-tender.service.gov.uk/Notice/055163-2026",
        "format": "text/html",
        "noticeType": "UK2",
        "description": "Preliminary market engagement notice on Find a Tender",
        "documentType": "marketEngagementNotice",
        "datePublished": "2026-06-11T12:32:07+01:00"
      }
    ],
    "milestones": [
      {
        "id": "engagement",
        "type": "engagement",
        "status": "scheduled",
        "dueDate": "2026-07-15T23:59:59+01:00",
        "description": "Suppliers are invited to express interest via email to Luis.Barreiros@Yorkshirewater.co.uk with brief details of their service offering. \nIf you wish to express interest but are not yet registered as a Yorkshire Water supplier, please email: Luis.Barreiros@Yorkshirewater.co.uk and include the full legal company name, and the email address you wish to register.\nIf you are already registered as a Yorkshire Water supplier, please email Luis.Barreiros@Yorkshirewater.co.uk and include your ANID number, your full company name, and your registered Ariba email address.\nThere are no specific conditions for participation in this market engagement. Participation is voluntary and non-binding."
      }
    ]
  },
  "initiationType": "tender"
}