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T500 Contaminant Conceptual Site Modelling

DEPARTMENT FOR ENVIRONMENT, FOOD & RURAL AFFAIRS

This public procurement record has 1 release in its history.

Award

02 Sep 2026 at 17:40

Award Notice
Summary of the contracting process

Defra Commercial is procuring professional services for T500 Contaminant Conceptual Site Modelling. The requirement concerns developing conceptual models of contaminant behaviour and site conditions, rather than physical construction or supply of goods. It is classified under management training services (CPV 80532000), although the tender title identifies the work as contaminant conceptual site modelling. The buyer is Defra Commercial, based at 17 Smith Square, London. Delivery locations include London and locations across the United Kingdom, Europe, the Isle of Man, the Channel Islands, British Overseas Territories and the rest of the world. This is a services requirement suitable for organisations operating across more than one geographic area.

The procurement is complete and has been awarded following a direct single-tender action below the threshold. The award was made on 2 September 2026 to Stephen Buss Environmental Consulting Ltd. The awarded value is £33,097.08. The contract is scheduled to run from 1 October 2026 to 30 September 2031. The tender submission deadline was 1 September 2026 at 12:00. The award is active, and the award and contract period are recorded against the requirement. The opportunity was marked as suitable for small and medium-sized enterprises and voluntary, community and social enterprises. The available evaluation information is limited to the single-tender route rather than a competitive scoring breakdown.

This procurement demonstrates a five-year requirement from Defra Commercial for specialist contaminant conceptual site modelling services. Businesses considering similar work should be able to analyse contaminant sources, pathways and receptors, develop defensible conceptual site models, and provide clear technical advice for environmental decision-making. Environmental consultancies with experience of public-sector requirements and the capacity to support work across the United Kingdom and wider listed locations would be well placed to compete when comparable demand returns. The award to an environmental consulting business indicates that the buyer values focused specialist consultancy rather than general construction delivery. The stated suitability for SMEs and voluntary, community and social enterprises also indicates that smaller specialist practices can be credible participants.

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Notice Information

Notice Title

T500 Contaminant Conceptual Site Modelling

Notice Description

T500 Contaminant Conceptual Site Modelling

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-b5fd17-2f6e9cd6-9781-402e-8b32-d18985c42fa3
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/a9a78cd1-08ec-4cb6-8ef5-fb84d144f312
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
Award Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Direct
Procurement Method Details
Single tender action (below threshold)
Tender Suitability
SME, VCSE
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

80 - Education and training services

CPV Codes

80532000 - Management training services

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
£33,097 Under £100K
Contracts Value
Not specified

Notice Dates

Publication Date
2 Sep 20261 weeks ago
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
2 Sep 20262 weeks ago
Contract Period
1 Oct 2026 - 30 Sep 2031 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Not Specified
Awards Status
Active
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
DEPARTMENT FOR ENVIRONMENT, FOOD & RURAL AFFAIRS
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LONDON
Postcode
SW1P 4DF
Postcode Area
South West London
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI3 Inner London - West
Small Region (ITL 3)
TLI35 Westminster and City of London
Delivery Location
Not specified
Local Authority
Westminster
Electoral Ward
St James's
Westminster Constituency
Cities of London and Westminster

Supplier Information

Number of Suppliers
1
Supplier Name

Stephen Buss Environmental Consulting Ltd

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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