---
title: "DNWP0037/LOT1B/ END STATES In Ground Mitigation / Tranche 4b remaining works"
ocid: "ocds-b5fd17-0f2ce9d5-e06c-422d-8c6b-428e5d79b08b"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-0f2ce9d5-e06c-422d-8c6b-428e5d79b08b"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-0f2ce9d5-e06c-422d-8c6b-428e5d79b08b.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-0f2ce9d5-e06c-422d-8c6b-428e5d79b08b.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "Sellafield Ltd"
published: "2026-10-15"
---

# DNWP0037/LOT1B/ END STATES In Ground Mitigation / Tranche 4b remaining works

Buyer: Sellafield Ltd  
Current stage: Award  
OCID: ocds-b5fd17-0f2ce9d5-e06c-422d-8c6b-428e5d79b08b

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## Summary

Sellafield commissioned remaining in-ground mitigation works for Tranche 4b, under the package titled “END STATES In Ground Mitigation”. The work is classified as ground investigation and falls within the works category. Delivery is associated with WA3 6GR and the North West of England. This is a site-based requirement for suppliers undertaking ground investigation and mitigation works; the published scope identifies the remaining works but gives no further task breakdown. The buying organisation is Sellafield, based in Warrington. The procurement concerns the completion of a defined tranche of in-ground work rather than a general supply of goods or ongoing service provision.

The procurement is complete and was awarded to AtkinsAltrad on 8 October 2026. The awarded contract value is £1,960,344.22. The contract period runs from 12 October 2026 to 30 September 2027. Sellafield used a selective procedure through a call-off from a framework agreement. The original tender deadline was 8 October 2026 at 12:00. The requirement is presented as one package of remaining Tranche 4b works, rather than separate lots. Small and medium-sized enterprises and voluntary, community and social enterprises were marked as unsuitable. The published procurement data does not set out evaluation criteria beyond the award outcome and route used.

For suppliers who did not win, this award demonstrates demand from Sellafield for substantial, site-based ground investigation and in-ground mitigation work to complete defined project tranches. A credible competitor for a comparable future requirement would need the technical capability and operational capacity to deliver investigation and mitigation works safely and reliably at a major industrial site, and to mobilise against a defined programme of remaining works. The selection of AtkinsAltrad provides evidence that a framework call-off is a route Sellafield uses for this type of work. The stated SME and VCSE suitability settings indicate that the opportunity was not considered suitable for those organisation types, so prospective competitors should be prepared to demonstrate the scale and delivery capability required for a sizeable works package.

## Notice

DNWP0037/LOT1B/ END STATES In Ground Mitigation / Tranche 4b remaining works

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/41a5bcb9-b204-4eba-b1fe-18c98152e245 |
| Notice type | Award Notice |
| Procurement type | Framework |
| Procurement category | Works |
| Procurement method | Selective |
| Procurement method details | Call-off from a framework agreement |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 15 Oct 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 8 Oct 2026 |
| Contract period | 12 Oct 2026 - 30 Sep 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £1,960,344 |
| Lots value | Not specified |
| Awards value | £1,960,344 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | Sellafield Ltd |
| Locality | WARRINGTON |
| Postcode area | Warrington |
| Postcode | WA3 6GR |
| Country | England |
| ITL 1 | TLD North West (England) |
| ITL 2 | TLD6 Cheshire |
| ITL 3 | TLD61 Warrington |
| Local authority | Warrington |
| Electoral ward | Birchwood |
| Westminster constituency | Warrington North |
| Delivery location | TLD North West (England) |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | AtkinsAltrad |

## CPV Codes

### Divisions

- 45 - Construction work

### Codes

- 45111250 - Ground investigation work

## Release History

- 15 Oct 2026 at 08:49 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/41a5bcb9-b204-4eba-b1fe-18c98152e245

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/41a5bcb9-b204-4eba-b1fe-18c98152e245
  15th October 2026 - Awarded contract notice on Contracts Finder

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-b5fd17-0f2ce9d5-e06c-422d-8c6b-428e5d79b08b. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-0f2ce9d5-e06c-422d-8c6b-428e5d79b08b.json.