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ClosedFind a Tender · UK4

Sludge Holding Tanks & Roofs

Buyer: THAMES WATER UTILITIES LIMITED →

View official notice ↗Official source

BuyerTHAMES WATER UTILITIES LIMITED
StatusClosed
Deadline9 Jan 2026
Value£0
Published10 Dec 2025

What is being bought

This procurement is for the supply and commissioning of sludge tanks, digesters, other associated tanks, roofs, and related items at various wastewater treatment sites. Target Sites The procurement will cover purchase, installation and commissioning of new sludge tanks, digesters, and other associated tanks and roofs and associated items. Objectives • Compliance: Ensure compliance with legislation, improve the environmental impact of the STW and provide infrastructure which is fit for purpose. • Commercial Value: Optimise the material and delivery solution to maximise commercial efficiencies for Thames Water • Futureproofing: Implement a framework which enables Thames Water to be able toe secure the capacity it requires for future programmes of works Procurement Approach: A competitive tender process will be undertaken to appoint a supplier(s) capable of delivering the required scope. The strategy favours a supplier who can streamline delivery, ensure consistency, and maximise commercial and operational benefits. Procurement Timeline Considerations: The procurement timeline is currently under review due to strategic and regulatory reassessments at certain sites. Specifically: • A study evaluating the requirements to meet the Environment Agency IED requirements is ongoing, with outcomes expected later in the year. These findings will inform final scope and procurement readiness Expected Outcomes • Improved asset reliability and operational performance • Enhanced alignment with environmental and regulatory objectives • Commercial efficiencies through strategic sourcing and standardisation Please note that that deadline for asking for access to the PSQ & submitting of the PSQ is 22 December 2025, 10 am.

Delivery location

UKI, GB · UKJ, GB · UKI, GB · UKJ, GB · UKI, GB · UKJ, GB

Categories

Sludge-storage tanks 44611420Water tanks 44611500Sewage treatment works 45232421Sludge-treatment works 45232422Construction works for sewage treatment plants, purification plants and refuse incineration plants 45252000Sewage treatment services 90420000

Lot details

Sludge Holding Tanks (including Digesters and other associated Tanks) (Supply and Installation)

This procurement relates to the supply and commissioning support of Sludge tanks, Digesters and Roofs and associated items across potential multiple wastewater treatment sites.

Statusactive
Value£0
Contract periodFrom 1 Jun 2026 to 31 May 2034
SME suitabilitySuitable for SMEs

Award criteria
Commercial (60%)
Technical (40%)

Sludge Holding Tanks (including Digesters and other associated Tanks) (CDM Responsibilities)

This procurement relates to the supply and commissioning support of Sludge tanks, Digesters and Roofs and associated items across potential multiple wastewater treatment sites. Whilst acting as the responsible CDM representative at the location.

Statusactive
Value£0
Contract periodFrom 1 Jun 2026 to 31 May 2034
SME suitabilitySuitable for SMEs

Award criteria
Commercial (60%)
Technical (40%)

Sludge Holding Tank Roofs (including Digesters)

This procurement relates to the supply and commissioning support of roofs for the fitting to Sludge tanks, Digesters and associated items across potential multiple wastewater treatment sites

Statusactive
Value£0
Contract periodFrom 1 Jun 2026 to 31 May 2034
SME suitabilitySuitable for SMEs

Award criteria
Commercial (60%)
Technical (40%)

What is included

ItemCategoryQuantity
1Sludge-storage tanks, Water tanks, Sewage treatment works, Sludge-treatment works, Construction works for sewage treatment plants, purification plants and refuse incineration plants, Sewage treatment servicesNot published
2Sludge-storage tanks, Water tanks, Sewage treatment works, Sludge-treatment works, Construction works for sewage treatment plants, purification plants and refuse incineration plants, Sewage treatment servicesNot published
3Sludge-storage tanks, Water tanks, Sewage treatment works, Sludge-treatment works, Construction works for sewage treatment plants, purification plants and refuse incineration plants, Sewage treatment servicesNot published

Comparable-procurement analytics

Benchmarked against retained Find a Tender procedures with CPV division 44. The category anchor is Sludge-storage tanks (44611420); 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 441,9446 median · 45 average (533 of 1,944 with a bid count)6.1 average (590 of 1,944 with named award suppliers)Not published
Same buyer8Not published2.5 average (2 of 8 with named award suppliers)Not published
Delivery region: UKI1703 median · 31.8 average (41 of 170 with a bid count)5.4 average (43 of 170 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-05e2b6
Latest release ID081350-2025
Latest release timestampWed Dec 10 2025 10:28:33 GMT+0000 (Coordinated Universal Time)
Sourcefind-a-tender
Official notice URLhttps://www.find-tender.service.gov.uk/Notice/081350-2025
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 deadline2026-01-09T10:00:00Z
Enquiry deadline2025-12-30T17:00:00Z
Award period: startNot published
Award period: end2026-05-18T23:59:59+01:00
Submission method detailsTo gain access to the PSQ documents, please fill out the details on this form; https://forms.office.com/e/8Dt3jAAmhs
Submission languagesen
Electronic catalogue policyNot published
Total tender value£0
Tender lots in source3
Tender items in source3
Tender documents in source2
Awards in latest release0
Contracts in latest release0
Parties in latest release1

Notice history

DateEventReference
10 Dec 2025tenderUpdate081350-2025
17 Nov 2025tender074498-2025

All source data

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

Complete current OCDS release JSON
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          {
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            "scheme": "CPV",
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      },
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          {
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        ]
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    ],
    "title": "Sludge Holding Tanks & Roofs",
    "value": {
      "currency": "GBP",
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    "status": "active",
    "documents": [
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        "id": "conflictOfInterest",
        "description": "Not published",
        "documentType": "conflictOfInterest"
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      {
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        "url": "https://www.find-tender.service.gov.uk/Notice/081350-2025",
        "format": "text/html",
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        "description": "Tender notice on Find a Tender",
        "documentType": "tenderNotice",
        "datePublished": "2025-12-10T10:28:33Z"
      }
    ],
    "procedure": {
      "features": "The procurement will follow a Competitive Flexible Procedure in line with the Procurement Act 2023. The process will include multiple stages, with opportunities for clarification, negotiation, and refinement of award criteria before final contract award.\nStage 1: Tender Notice Publication\n•\tThe process begins with the publication of the Contract Notice on the Find a Tender Service (FTS)\n•\tThis will outline the scope of requirements, procurement stages, and timelines\nStage 2: Pre-Specific Questionnaire (PSQ)\n•\tPSQ Publication: The PSQ will be published alongside the contract notice\n•\tSupplier Response: Suppliers will complete and submit the PSQ by the stated deadline\n•\tClarification Period: A defined window will allow suppliers to raise queries and Thames Water to provide clarifications\n•\tEvaluation: PSQ responses will be assessed on a pass/fail and weighted basis against mandatory criteria\n•\tOutcome: Successful suppliers will be shortlisted and invited to the next stage\nStage 3: Preliminary Tender Submission\n•\tIssue of Documents: Shortlisted suppliers will receive the full information pack\n•\tClarification: Suppliers submit any clarification questions to the tender. TW will answer\n•\tSubmissions: Suppliers submit bid submissions (technical and commercial proposals)\n•\tClarification and Questions: TW submit clarifications and questions to the supplier responses\n•\tEvaluation: Submissions are assessed against published criteria\nStage 4: Negotiation Stage\n•\tShortlisted suppliers will receive invitations to negotiate and further information about the process\n•\tNegotiation and Refinement: Negotiations with suppliers to refine solutions and optimise value\n•\tUpdated Submissions: Suppliers to submit revised bids following negotiation rounds\nStage 5: Final Evaluation and Selection\n•\tEvaluation: Final submissions are evaluated against weighted criteria\nStage 6: Contract Award\n•\tNotification: Successful and unsuccessful suppliers will be informed in writing\n•\tStandstill Period: A mandatory standstill period will apply before contract signature\n•\tContract Execution: Following standstill, the contract will be awarded and signed"
    },
    "amendments": [
      {
        "id": "081350-2025",
        "description": "The submission deadline has been extended to 9 January 2026, at 10:00 am, and the enquiry deadline to 30 December 2025, at 17:00."
      }
    ],
    "legalBasis": {
      "id": "2023/54",
      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
      "scheme": "UKPGA"
    },
    "techniques": {
      "frameworkAgreement": {
        "type": "closed",
        "method": "withReopeningCompetition",
        "description": "Mini-Competitions to be held once requirements are defined"
      },
      "hasFrameworkAgreement": true
    },
    "awardPeriod": {
      "endDate": "2026-05-18T23:59:59+01:00"
    },
    "description": "This procurement is for the supply and commissioning of sludge tanks, digesters, other associated tanks, roofs, and related items at various wastewater treatment sites.\nTarget Sites\nThe procurement will cover purchase, installation and commissioning of new sludge tanks, digesters, and other associated tanks and roofs and associated items.\nObjectives\n•\tCompliance: Ensure compliance with legislation, improve the environmental impact of the STW and provide infrastructure which is fit for purpose.\n•\tCommercial Value: Optimise the material and delivery solution to maximise commercial efficiencies for Thames Water\n•\tFutureproofing: Implement a framework which enables Thames Water to be able toe secure the capacity it requires for future programmes of works\nProcurement Approach: A competitive tender process will be undertaken to appoint a supplier(s) capable of delivering the required scope. The strategy favours a supplier who can streamline delivery, ensure consistency, and maximise commercial and operational benefits.\nProcurement Timeline Considerations: The procurement timeline is currently under review due to strategic and regulatory reassessments at certain sites. Specifically:\n•\tA study evaluating the requirements to meet the Environment Agency IED requirements is ongoing, with outcomes expected later in the year. These findings will inform final scope and procurement readiness\nExpected Outcomes\n•\tImproved asset reliability and operational performance\n•\tEnhanced alignment with environmental and regulatory objectives\n•\tCommercial efficiencies through strategic sourcing and standardisation\nPlease note that that deadline for asking for access to the PSQ & submitting of the PSQ is 22 December 2025, 10 am.",
    "enquiryPeriod": {
      "endDate": "2025-12-30T17:00:00Z"
    },
    "specialRegime": [
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    "submissionMethodDetails": "To gain access to the PSQ documents, please fill out the details on this form;\nhttps://forms.office.com/e/8Dt3jAAmhs",
    "procurementMethodDetails": "Competitive flexible procedure",
    "expressionOfInterestDeadline": "2026-01-09T10:00:00Z"
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      "name": "THAMES WATER UTILITIES LIMITED",
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        "country": "GB",
        "locality": "Reading",
        "postalCode": "RG1 8DB",
        "countryName": "United Kingdom",
        "streetAddress": "Clearwater Court"
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      "contactPoint": {
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      "additionalIdentifiers": [
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          "id": "PNQQ-4647-DTCV",
          "scheme": "GB-PPON"
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    }
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  "language": "en",
  "initiationType": "tender"
}
Complete JSON history (2 releases)
10 Dec 2025 · 081350-2025 · tenderUpdate
{
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            "id": "45252000",
            "scheme": "CPV",
            "description": "Construction works for sewage treatment plants, purification plants and refuse incineration plants"
          },
          {
            "id": "90420000",
            "scheme": "CPV",
            "description": "Sewage treatment services"
          }
        ]
      },
      {
        "id": "3",
        "relatedLot": "3",
        "deliveryAddresses": [
          {
            "region": "UKI",
            "country": "GB",
            "countryName": "United Kingdom"
          },
          {
            "region": "UKJ",
            "country": "GB",
            "countryName": "United Kingdom"
          }
        ],
        "additionalClassifications": [
          {
            "id": "44611420",
            "scheme": "CPV",
            "description": "Sludge-storage tanks"
          },
          {
            "id": "44611500",
            "scheme": "CPV",
            "description": "Water tanks"
          },
          {
            "id": "45232421",
            "scheme": "CPV",
            "description": "Sewage treatment works"
          },
          {
            "id": "45232422",
            "scheme": "CPV",
            "description": "Sludge-treatment works"
          },
          {
            "id": "45252000",
            "scheme": "CPV",
            "description": "Construction works for sewage treatment plants, purification plants and refuse incineration plants"
          },
          {
            "id": "90420000",
            "scheme": "CPV",
            "description": "Sewage treatment services"
          }
        ]
      }
    ],
    "title": "Sludge Holding Tanks & Roofs",
    "value": {
      "currency": "GBP",
      "amountGross": 0
    },
    "status": "active",
    "documents": [
      {
        "id": "conflictOfInterest",
        "description": "Not published",
        "documentType": "conflictOfInterest"
      },
      {
        "id": "081350-2025",
        "url": "https://www.find-tender.service.gov.uk/Notice/081350-2025",
        "format": "text/html",
        "noticeType": "UK4",
        "description": "Tender notice on Find a Tender",
        "documentType": "tenderNotice",
        "datePublished": "2025-12-10T10:28:33Z"
      }
    ],
    "procedure": {
      "features": "The procurement will follow a Competitive Flexible Procedure in line with the Procurement Act 2023. The process will include multiple stages, with opportunities for clarification, negotiation, and refinement of award criteria before final contract award.\nStage 1: Tender Notice Publication\n•\tThe process begins with the publication of the Contract Notice on the Find a Tender Service (FTS)\n•\tThis will outline the scope of requirements, procurement stages, and timelines\nStage 2: Pre-Specific Questionnaire (PSQ)\n•\tPSQ Publication: The PSQ will be published alongside the contract notice\n•\tSupplier Response: Suppliers will complete and submit the PSQ by the stated deadline\n•\tClarification Period: A defined window will allow suppliers to raise queries and Thames Water to provide clarifications\n•\tEvaluation: PSQ responses will be assessed on a pass/fail and weighted basis against mandatory criteria\n•\tOutcome: Successful suppliers will be shortlisted and invited to the next stage\nStage 3: Preliminary Tender Submission\n•\tIssue of Documents: Shortlisted suppliers will receive the full information pack\n•\tClarification: Suppliers submit any clarification questions to the tender. TW will answer\n•\tSubmissions: Suppliers submit bid submissions (technical and commercial proposals)\n•\tClarification and Questions: TW submit clarifications and questions to the supplier responses\n•\tEvaluation: Submissions are assessed against published criteria\nStage 4: Negotiation Stage\n•\tShortlisted suppliers will receive invitations to negotiate and further information about the process\n•\tNegotiation and Refinement: Negotiations with suppliers to refine solutions and optimise value\n•\tUpdated Submissions: Suppliers to submit revised bids following negotiation rounds\nStage 5: Final Evaluation and Selection\n•\tEvaluation: Final submissions are evaluated against weighted criteria\nStage 6: Contract Award\n•\tNotification: Successful and unsuccessful suppliers will be informed in writing\n•\tStandstill Period: A mandatory standstill period will apply before contract signature\n•\tContract Execution: Following standstill, the contract will be awarded and signed"
    },
    "amendments": [
      {
        "id": "081350-2025",
        "description": "The submission deadline has been extended to 9 January 2026, at 10:00 am, and the enquiry deadline to 30 December 2025, at 17:00."
      }
    ],
    "legalBasis": {
      "id": "2023/54",
      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
      "scheme": "UKPGA"
    },
    "techniques": {
      "frameworkAgreement": {
        "type": "closed",
        "method": "withReopeningCompetition",
        "description": "Mini-Competitions to be held once requirements are defined"
      },
      "hasFrameworkAgreement": true
    },
    "awardPeriod": {
      "endDate": "2026-05-18T23:59:59+01:00"
    },
    "description": "This procurement is for the supply and commissioning of sludge tanks, digesters, other associated tanks, roofs, and related items at various wastewater treatment sites.\nTarget Sites\nThe procurement will cover purchase, installation and commissioning of new sludge tanks, digesters, and other associated tanks and roofs and associated items.\nObjectives\n•\tCompliance: Ensure compliance with legislation, improve the environmental impact of the STW and provide infrastructure which is fit for purpose.\n•\tCommercial Value: Optimise the material and delivery solution to maximise commercial efficiencies for Thames Water\n•\tFutureproofing: Implement a framework which enables Thames Water to be able toe secure the capacity it requires for future programmes of works\nProcurement Approach: A competitive tender process will be undertaken to appoint a supplier(s) capable of delivering the required scope. The strategy favours a supplier who can streamline delivery, ensure consistency, and maximise commercial and operational benefits.\nProcurement Timeline Considerations: The procurement timeline is currently under review due to strategic and regulatory reassessments at certain sites. Specifically:\n•\tA study evaluating the requirements to meet the Environment Agency IED requirements is ongoing, with outcomes expected later in the year. These findings will inform final scope and procurement readiness\nExpected Outcomes\n•\tImproved asset reliability and operational performance\n•\tEnhanced alignment with environmental and regulatory objectives\n•\tCommercial efficiencies through strategic sourcing and standardisation\nPlease note that that deadline for asking for access to the PSQ & submitting of the PSQ is 22 December 2025, 10 am.",
    "enquiryPeriod": {
      "endDate": "2025-12-30T17:00:00Z"
    },
    "specialRegime": [
      "utilities"
    ],
    "aboveThreshold": true,
    "submissionTerms": {
      "languages": [
        "en"
      ],
      "electronicSubmissionPolicy": "allowed"
    },
    "procurementMethod": "selective",
    "mainProcurementCategory": "goods",
    "submissionMethodDetails": "To gain access to the PSQ documents, please fill out the details on this form;\nhttps://forms.office.com/e/8Dt3jAAmhs",
    "procurementMethodDetails": "Competitive flexible procedure",
    "expressionOfInterestDeadline": "2026-01-09T10:00:00Z"
  },
  "parties": [
    {
      "id": "GB-COH-02366661",
      "name": "THAMES WATER UTILITIES LIMITED",
      "roles": [
        "buyer"
      ],
      "address": {
        "region": "UKJ11",
        "country": "GB",
        "locality": "Reading",
        "postalCode": "RG1 8DB",
        "countryName": "United Kingdom",
        "streetAddress": "Clearwater Court"
      },
      "details": {
        "classifications": [
          {
            "id": "privateUtility",
            "scheme": "UK_CA_TYPE",
            "description": "Private utility"
          }
        ]
      },
      "identifier": {
        "id": "02366661",
        "scheme": "GB-COH"
      },
      "contactPoint": {
        "email": "procurement.support.centre@thameswater.co.uk"
      },
      "additionalIdentifiers": [
        {
          "id": "PNQQ-4647-DTCV",
          "scheme": "GB-PPON"
        }
      ]
    }
  ],
  "language": "en",
  "initiationType": "tender"
}
17 Nov 2025 · 074498-2025 · tender
{
  "id": "074498-2025",
  "tag": [
    "tender"
  ],
  "date": "2025-11-17T16:01:22Z",
  "ocid": "ocds-h6vhtk-05e2b6",
  "buyer": {
    "id": "GB-COH-02366661",
    "name": "THAMES WATER UTILITIES LIMITED"
  },
  "tender": {
    "id": "FA2367",
    "lots": [
      {
        "id": "1",
        "title": "Sludge Holding Tanks (including Digesters and other associated Tanks) (Supply and Installation)",
        "value": {
          "currency": "GBP",
          "amountGross": 0
        },
        "status": "active",
        "description": "This procurement relates to the supply and commissioning support of Sludge tanks, Digesters and Roofs and associated items across potential multiple wastewater treatment sites.",
        "suitability": {
          "sme": true
        },
        "awardCriteria": {
          "criteria": [
            {
              "name": "Commercial",
              "type": "quality",
              "numbers": [
                {
                  "number": 60,
                  "weight": "percentageExact"
                }
              ]
            },
            {
              "name": "Technical",
              "type": "price",
              "numbers": [
                {
                  "number": 40,
                  "weight": "percentageExact"
                }
              ]
            }
          ]
        },
        "contractPeriod": {
          "endDate": "2034-05-31T23:59:59+01:00",
          "startDate": "2026-06-01T00:00:00+01:00"
        }
      },
      {
        "id": "2",
        "title": "Sludge Holding Tanks  (including Digesters and other associated Tanks) (CDM Responsibilities)",
        "value": {
          "currency": "GBP",
          "amountGross": 0
        },
        "status": "active",
        "description": "This procurement relates to the supply and commissioning support of Sludge tanks, Digesters and Roofs and associated items across potential multiple wastewater treatment sites. Whilst acting as the responsible CDM representative at the location.",
        "suitability": {
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        },
        "awardCriteria": {
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                  "weight": "percentageExact"
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              ]
            },
            {
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              "type": "price",
              "numbers": [
                {
                  "number": 40,
                  "weight": "percentageExact"
                }
              ]
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        },
        "contractPeriod": {
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          "startDate": "2026-06-01T00:00:00+01:00"
        }
      },
      {
        "id": "3",
        "title": "Sludge Holding Tank Roofs (including Digesters)",
        "value": {
          "currency": "GBP",
          "amountGross": 0
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        "status": "active",
        "description": "This procurement relates to the supply and commissioning support of roofs for the fitting to Sludge tanks, Digesters and associated items across potential multiple wastewater treatment sites",
        "suitability": {
          "sme": true
        },
        "awardCriteria": {
          "criteria": [
            {
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              "type": "quality",
              "numbers": [
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                  "number": 60,
                  "weight": "percentageExact"
                }
              ]
            },
            {
              "name": "Technical",
              "type": "price",
              "numbers": [
                {
                  "number": 40,
                  "weight": "percentageExact"
                }
              ]
            }
          ]
        },
        "contractPeriod": {
          "endDate": "2034-05-31T23:59:59+01:00",
          "startDate": "2026-06-01T00:00:00+01:00"
        }
      }
    ],
    "items": [
      {
        "id": "1",
        "relatedLot": "1",
        "deliveryAddresses": [
          {
            "region": "UKI",
            "country": "GB",
            "countryName": "United Kingdom"
          },
          {
            "region": "UKJ",
            "country": "GB",
            "countryName": "United Kingdom"
          }
        ],
        "additionalClassifications": [
          {
            "id": "44611420",
            "scheme": "CPV",
            "description": "Sludge-storage tanks"
          },
          {
            "id": "44611500",
            "scheme": "CPV",
            "description": "Water tanks"
          },
          {
            "id": "45232421",
            "scheme": "CPV",
            "description": "Sewage treatment works"
          },
          {
            "id": "45232422",
            "scheme": "CPV",
            "description": "Sludge-treatment works"
          },
          {
            "id": "45252000",
            "scheme": "CPV",
            "description": "Construction works for sewage treatment plants, purification plants and refuse incineration plants"
          },
          {
            "id": "90420000",
            "scheme": "CPV",
            "description": "Sewage treatment services"
          }
        ]
      },
      {
        "id": "2",
        "relatedLot": "2",
        "deliveryAddresses": [
          {
            "region": "UKI",
            "country": "GB",
            "countryName": "United Kingdom"
          },
          {
            "region": "UKJ",
            "country": "GB",
            "countryName": "United Kingdom"
          }
        ],
        "additionalClassifications": [
          {
            "id": "44611420",
            "scheme": "CPV",
            "description": "Sludge-storage tanks"
          },
          {
            "id": "44611500",
            "scheme": "CPV",
            "description": "Water tanks"
          },
          {
            "id": "45232421",
            "scheme": "CPV",
            "description": "Sewage treatment works"
          },
          {
            "id": "45232422",
            "scheme": "CPV",
            "description": "Sludge-treatment works"
          },
          {
            "id": "45252000",
            "scheme": "CPV",
            "description": "Construction works for sewage treatment plants, purification plants and refuse incineration plants"
          },
          {
            "id": "90420000",
            "scheme": "CPV",
            "description": "Sewage treatment services"
          }
        ]
      },
      {
        "id": "3",
        "relatedLot": "3",
        "deliveryAddresses": [
          {
            "region": "UKI",
            "country": "GB",
            "countryName": "United Kingdom"
          },
          {
            "region": "UKJ",
            "country": "GB",
            "countryName": "United Kingdom"
          }
        ],
        "additionalClassifications": [
          {
            "id": "44611420",
            "scheme": "CPV",
            "description": "Sludge-storage tanks"
          },
          {
            "id": "44611500",
            "scheme": "CPV",
            "description": "Water tanks"
          },
          {
            "id": "45232421",
            "scheme": "CPV",
            "description": "Sewage treatment works"
          },
          {
            "id": "45232422",
            "scheme": "CPV",
            "description": "Sludge-treatment works"
          },
          {
            "id": "45252000",
            "scheme": "CPV",
            "description": "Construction works for sewage treatment plants, purification plants and refuse incineration plants"
          },
          {
            "id": "90420000",
            "scheme": "CPV",
            "description": "Sewage treatment services"
          }
        ]
      }
    ],
    "title": "Sludge Holding Tanks & Roofs",
    "value": {
      "currency": "GBP",
      "amountGross": 0
    },
    "status": "active",
    "documents": [
      {
        "id": "conflictOfInterest",
        "description": "Not published",
        "documentType": "conflictOfInterest"
      },
      {
        "id": "074498-2025",
        "url": "https://www.find-tender.service.gov.uk/Notice/074498-2025",
        "format": "text/html",
        "noticeType": "UK4",
        "description": "Tender notice on Find a Tender",
        "documentType": "tenderNotice",
        "datePublished": "2025-11-17T16:01:22Z"
      }
    ],
    "procedure": {
      "features": "The procurement will follow a Competitive Flexible Procedure in line with the Procurement Act 2023. The process will include multiple stages, with opportunities for clarification, negotiation, and refinement of award criteria before final contract award.\nStage 1: Tender Notice Publication \n•\tThe process begins with the publication of the Contract Notice on the Find a Tender Service (FTS) \n•\tThis will outline the scope of requirements, procurement stages, and timelines \nStage 2: Pre-Specific Questionnaire (PSQ) \n•\tPSQ Publication: The PSQ will be published alongside the contract notice \n•\tSupplier Response: Suppliers will complete and submit the PSQ by the stated deadline \n•\tClarification Period: A defined window will allow suppliers to raise queries and Thames Water to provide clarifications \n•\tEvaluation: PSQ responses will be assessed on a pass/fail and weighted basis against mandatory criteria \n•\tOutcome: Successful suppliers will be shortlisted and invited to the next stage \nStage 3: Preliminary Tender Submission \n•\tIssue of Documents: Shortlisted suppliers will receive the full information pack \n•\tClarification: Suppliers submit any clarification questions to the tender. TW will answer \n•\tSubmissions: Suppliers submit bid submissions (technical and commercial proposals) \n•\tClarification and Questions: TW submit clarifications and questions to the supplier responses \n•\tEvaluation: Submissions are assessed against published criteria \nStage 4: Negotiation Stage \n•\tShortlisted suppliers will receive invitations to negotiate and further information about the process \n•\tNegotiation and Refinement: Negotiations with suppliers to refine solutions and optimise value  \n•\tUpdated Submissions: Suppliers to submit revised bids following negotiation rounds \nStage 5: Final Evaluation and Selection \n•\tEvaluation: Final submissions are evaluated against weighted criteria \nStage 6: Contract Award \n•\tNotification: Successful and unsuccessful suppliers will be informed in writing \n•\tStandstill Period: A mandatory standstill period will apply before contract signature \n•\tContract Execution: Following standstill, the contract will be awarded and signed"
    },
    "legalBasis": {
      "id": "2023/54",
      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
      "scheme": "UKPGA"
    },
    "techniques": {
      "frameworkAgreement": {
        "type": "closed",
        "method": "withReopeningCompetition",
        "description": "Mini-Competitions to be held once requirements are defined"
      },
      "hasFrameworkAgreement": true
    },
    "awardPeriod": {
      "endDate": "2026-05-18T23:59:59+01:00"
    },
    "description": "This procurement is for the supply and commissioning of sludge tanks, digesters, other associated tanks, roofs, and related items at various wastewater treatment sites.\nTarget Sites\nThe procurement will cover purchase, installation and commissioning of new sludge tanks, digesters, and other associated tanks and roofs and associated items.\nObjectives\n•\tCompliance: Ensure compliance with legislation, improve the environmental impact of the STW and provide infrastructure which is fit for purpose. \n•\tCommercial Value: Optimise the material and delivery solution to maximise commercial efficiencies for Thames Water\n•\tFutureproofing: Implement a framework which enables Thames Water to be able toe secure the capacity it requires for future programmes of works\nProcurement Approach: A competitive tender process will be undertaken to appoint a supplier(s) capable of delivering the required scope. The strategy favours a supplier who can streamline delivery, ensure consistency, and maximise commercial and operational benefits.\nProcurement Timeline Considerations: The procurement timeline is currently under review due to strategic and regulatory reassessments at certain sites. Specifically:\n•\tA study evaluating the requirements to meet the Environment Agency IED requirements is ongoing, with outcomes expected later in the year. These findings will inform final scope and procurement readiness\nExpected Outcomes\n•\tImproved asset reliability and operational performance\n•\tEnhanced alignment with environmental and regulatory objectives\n•\tCommercial efficiencies through strategic sourcing and standardisation\nPlease note that that deadline for asking for access to the PSQ & submitting of the PSQ is 22 December 2025, 10 am.",
    "enquiryPeriod": {
      "endDate": "2025-12-15T17:00:00Z"
    },
    "specialRegime": [
      "utilities"
    ],
    "aboveThreshold": true,
    "submissionTerms": {
      "languages": [
        "en"
      ],
      "electronicSubmissionPolicy": "allowed"
    },
    "procurementMethod": "selective",
    "mainProcurementCategory": "goods",
    "submissionMethodDetails": "To gain access to the PSQ documents, please fill out the details on this form;\nhttps://forms.office.com/e/8Dt3jAAmhs",
    "procurementMethodDetails": "Competitive flexible procedure",
    "expressionOfInterestDeadline": "2025-12-22T10:00:00Z"
  },
  "parties": [
    {
      "id": "GB-COH-02366661",
      "name": "THAMES WATER UTILITIES LIMITED",
      "roles": [
        "buyer"
      ],
      "address": {
        "region": "UKJ11",
        "country": "GB",
        "locality": "Reading",
        "postalCode": "RG1 8DB",
        "countryName": "United Kingdom",
        "streetAddress": "Clearwater Court"
      },
      "details": {
        "classifications": [
          {
            "id": "privateUtility",
            "scheme": "UK_CA_TYPE",
            "description": "Private utility"
          }
        ]
      },
      "identifier": {
        "id": "02366661",
        "scheme": "GB-COH"
      },
      "contactPoint": {
        "email": "procurement.support.centre@thameswater.co.uk"
      },
      "additionalIdentifiers": [
        {
          "id": "PNQQ-4647-DTCV",
          "scheme": "GB-PPON"
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    }
  ],
  "language": "en",
  "initiationType": "tender"
}