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    ContractsMarine Water and Sediment Sampling Analysis Services for Hinkley Point C Nuclear Power Station
    Closed contract

    Marine Water and Sediment Sampling Analysis Services for Hinkley Point C Nuclear Power Station

    Contract value
    £125k
    Closed 31 Jul 2026

    Supply marine water and sediment sampling and laboratory analysis services in Bridgwater Bay for the Hinkley Point C nuclear power station environmental monitoring programme, with an initial 12-month contract period and four optional annual extensions.

    🇬🇧United Kingdom· East of EnglandPublished 1 Jul 2026· 3 months agoviaFind a Tender
    Contract value
    £125k
    Closed 31 Jul 2026
    Tender deadline passed on 31 Jul 2026.

    Decision brief

    4 fields
    • Contract value
      est.£125,000
      Pounds sterling
    • Tender closed
      31 Jul 2026
      2 months ago
    • Sector
      Engineering
      Browse related listings
    • Location
      🇬🇧United Kingdom
      East of England

    Lifecycle

    Closed

    Tender closed on 31 Jul 2026. Awaiting award.

    1 Jul 2026Today31 Jul 2026

    Brief

    Cefas is seeking a qualified supplier to deliver marine sampling, profiling, and laboratory analysis services for the BEEMS (British EDF Energy Estuarine and Marine Studies) programme, funded by NNB Generation Company (HPC) Limited. The supplier will conduct water and sediment sampling surveys in Bridgwater Bay adjacent to the Hinkley Point C nuclear power station site, with initial sampling planned for summer 2026 and potential for continued annual sampling for at least 4 years. The scope includes approximately 3 days of vessel operations (2 days for water sampling, 1 day for sediment sampling) to collect water quality samples from six stations (three near cooling water outfall heads and three near fish recovery and return outfall) over full tidal cycles, sediment samples from up to 20 stations using Day grab equipment, and complete laboratory analysis of all samples except hydrazine analysis (conducted by Cefas). Water sampling requires field measurements including conductivity, temperature, depth (CTD), salinity, dissolved oxygen, pH, and total residual oxidant (TRO) analysis. Sediment analysis must include trace metals, particle size analysis (PSA), and total organic carbon, performed by an MMO certified laboratory. The initial contract period is 12 months with the option to extend for up to 4 additional 12-month periods. Suppliers must submit a Risk Assessment and Method Statement (RAMS) at least one month prior to the first survey, detailing sample acquisition, storage, shipping, and laboratory analysis procedures.

    Track record

    1 award · 1 winner
    Open panel

    Mostly framework call-offs rather than head-to-head competition.

    In engineering, CENTRE FOR ENVIRONMENT, FISHERIES AND AQUACULTURE SCIENCE has awarded 1 contract to 1 supplier.

    Who wins here
    1. UNIVERSITY OF PLYMOUTH1× · 100%

    Across engineering, the most active winners are AECOM LTD, WSP UK LIMITED, OVE ARUP PARTNERS LIMITED — the field to beat, or your route in as a partner.

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    View on sourceFind a Tender

    Original closed notice on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-06c123

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    Buyer
    CENTRE FOR ENVIRONMENT, FISHERIES AND AQUACULTURE SCIENCE
    Sector
    Engineering