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K298 Maple Lodge STW Quality AMP 7 New Permit

THAMES WATER UTILITIES LIMITED

Buyer Contact Info

Buyer Name: THAMES WATER UTILITIES LIMITED

Buyer Address: Clearwater Court, Reading, UKJ11, RG1 8DB, United Kingdom

Contact Email: procurement.support.centre@thameswater.co.uk

Status
complete
Procedure
selective
Value
280000000.0 GBP
Published
17 Feb 2026, 15:58
Deadline
n/a
Contract Start
31 Mar 2026, 23:00
Contract End
29 Mar 2030, 23:59
Category
n/a
CPV
45252127 - Wastewater treatment plant construction work
Region
n/a
Awarded To
KIER INFRASTRUCTURE AND OVERSEAS LIMITED
Official Source
Open Find a Tender

Description

This project includes, but is not limited to the following packages of work: An additional inlet screen with civils alterations and screening handling upgrade An additional detritor and flow inlet channel, incorporating a new storm separation weir A new storm tank and river outfall, including flow transfer culvert and new storm return pumping station Upgrades to the existing six PSTs and conversion of three storm tanks into PSTs, fitted with chain and flight scraper Replacement Primary chemical dosing pumps to aid Phosphorus removal A new activated sludge plant Bank C, with new feed PS and blowers Eight new 28m diameter final settlement tanks, interconnecting pipework, distribution chambers and RAS system A new secondary chemical dosing system to aid Phosphorus removal Two new Tertiary Solids Removal treatment plants, one serving the effluent from Bank A and B, and one serving the effluent from the new Bank C An additional Drum thickener New incoming switchboard for the new DNO supply Modification and upgrade of HV/LV networks Modification and upgrade to the power management system and site-wide SCADA Modification and upgrade to the Process SCADA Additional standby powered generation Demolition and removal of redundant structures, plant and equipment N.B. Please note that this Contract Notice shows a value of £280m. The current contract value is circa £140m-£280m.

Linked Documents

No linked documents found for this notice.

Opportunity Context

Lots

Lot 1 Status: complete

Awards

Award Title: K298 Maple Lodge STW Quality AMP 7 New Permit

Raw Notice JSON

Expand raw payload
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  "awards": [
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      "assessmentSummariesDateSent": "2026-02-17T00:00:00Z",
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        "startDate": "2026-04-01T00:00:00+01:00"
      },
      "date": "2026-02-17T00:00:00Z",
      "documents": [
        {
          "datePublished": "2026-02-17T15:58:35Z",
          "description": "Contract award notice on Find a Tender",
          "documentType": "awardNotice",
          "format": "text/html",
          "id": "014471-2026",
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      "mainProcurementCategory": "works",
      "milestones": [
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          "status": "scheduled",
          "type": "futureSignatureDate"
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      "standstillPeriod": {
        "endDate": "2026-02-26T23:59:59+00:00"
      },
      "status": "pending",
      "suppliers": [
        {
          "id": "GB-COH-01157281",
          "name": "KIER INFRASTRUCTURE AND OVERSEAS LIMITED"
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      ],
      "title": "K298 Maple Lodge STW Quality AMP 7 New Permit",
      "value": {
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        "currency": "GBP"
      }
    }
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  "buyer": {
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  "language": "en",
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        "postalCode": "RG1 8DB",
        "region": "UKJ11",
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      "contactPoint": {
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      "address": {
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        "locality": "Salford",
        "postalCode": "M50 3XP",
        "region": "UKD34",
        "streetAddress": "2nd Floor Optimum House"
      },
      "contactPoint": {
        "email": "kisproposals@kier.co.uk"
      },
      "details": {
        "publicServiceMissionOrganization": false,
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      "roles": [
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  ],
  "tag": [
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  "tender": {
    "description": "This project includes, but is not limited to the following packages of work:\nAn additional inlet screen with civils alterations and screening handling upgrade\nAn additional detritor and flow inlet channel, incorporating a new storm separation weir\nA new storm tank and river outfall, including flow transfer culvert and new storm return pumping station\nUpgrades to the existing six PSTs and conversion of three storm tanks into PSTs, fitted with chain and flight scraper Replacement Primary chemical dosing pumps to aid Phosphorus removal\nA new activated sludge plant Bank C, with new feed PS and blowers\nEight new 28m diameter final settlement tanks, interconnecting pipework, distribution chambers and RAS system\nA new secondary chemical dosing system to aid Phosphorus removal\nTwo new Tertiary Solids Removal treatment plants, one serving the effluent from Bank A and B, and one serving the effluent from the new Bank C\nAn additional Drum thickener\nNew incoming switchboard for the new DNO supply\nModification and upgrade of HV/LV networks\nModification and upgrade to the power management system and site-wide SCADA\nModification and upgrade to the Process SCADA\nAdditional standby powered generation\nDemolition and removal of redundant structures, plant and equipment\nN.B. Please note that this Contract Notice shows a value of \u00a3280m. The current contract value is circa \u00a3140m-\u00a3280m.",
    "id": "TC2239",
    "legalBasis": {
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      "scheme": "UKPGA",
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    "procurementMethodDetails": "Competitive flexible procedure",
    "specialRegime": [
      "utilities"
    ],
    "status": "complete",
    "title": "K298 Maple Lodge STW Quality AMP 7 New Permit"
  }
}