---
title: "Sellafield Calder Primary Circuit"
ocid: "ocds-b5fd17-d0b63238-133d-4d46-8b8d-ec003d31ebeb"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-d0b63238-133d-4d46-8b8d-ec003d31ebeb"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-d0b63238-133d-4d46-8b8d-ec003d31ebeb.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-d0b63238-133d-4d46-8b8d-ec003d31ebeb.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "NUCLEAR WASTE SERVICES"
published: "2026-07-30"
---

# Sellafield Calder Primary Circuit

Buyer: NUCLEAR WASTE SERVICES  
Current stage: Award  
OCID: ocds-b5fd17-d0b63238-133d-4d46-8b8d-ec003d31ebeb

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-d0b63238-133d-4d46-8b8d-ec003d31ebeb)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-d0b63238-133d-4d46-8b8d-ec003d31ebeb.json)

## Summary

The procurement process managed by Nuclear Waste Services involved a tender titled "Sellafield Calder Primary Circuit," focused on radioactive waste treatment services. This contract, designated under CPV code 90521000, pertained to managing waste from the Calder Hall Blower Houses and was executed through a selective procurement method, specifically a call-off from a framework agreement. The procurement, located in North West, United Kingdom, effectively transitioned from award phase to contract commencement on 31st July 2026. The total contract value stands at £1,775,908.20, with the contractual engagements stretching until 2nd October 2031. The process, classified as a service contract, culminated with an award to Augean South Limited, following the tender period's conclusion on 23rd January 2026.

This contract represents a significant opportunity for businesses specializing in waste management and radioactive waste treatment to engage with Nuclear Waste Services. Firms operating within the environmental services sector, particularly those familiar with handling and treating hazardous waste, could find this contract to be a lucrative growth opportunity. Large enterprises or well-established organisations equipped with the necessary expertise and operational capacity to manage significant waste treatments would be well-positioned to compete effectively in this industry segment, even as SMEs and VCSEs are not seen as suitable in this instance.

## Notice

Management of waste generated from the Calder Hall Blower Houses. There is no guarantee of waste under this service.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/9a5e05f1-df4f-48fc-b82c-4599f8357693 |
| Notice type | Award Notice |
| Procurement type | Framework |
| Procurement category | Services |
| 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 | 30 Jul 2026 |
| Submission deadline | 23 Jan 2026 |
| Future notice date | Not specified |
| Award date | 30 Jul 2026 |
| Contract period | 30 Jul 2026 - 2 Oct 2031 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £1,775,908 |
| Lots value | Not specified |
| Awards value | £1,775,908 |
| 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 | NUCLEAR WASTE SERVICES |
| Locality | CALDER BRIDGE |
| Post town | Carlisle |
| Postcode | CA20 1DB |
| Country | England |
| ITL 1 | TLD North West (England) |
| ITL 2 | TLD1 Cumbria |
| ITL 3 | TLD13 Cumberland |
| Local authority | Cumberland |
| Electoral ward | Gosforth |
| Westminster constituency | Whitehaven and Workington |
| Delivery location | TLD North West (England) |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | AUGEAN SOUTH |

## CPV Codes

### Divisions

- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 90521000 - Radioactive waste treatment services

## Release History

- 30 Jul 2026 at 10:12 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/9a5e05f1-df4f-48fc-b82c-4599f8357693

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/9a5e05f1-df4f-48fc-b82c-4599f8357693
  30th July 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-d0b63238-133d-4d46-8b8d-ec003d31ebeb. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-d0b63238-133d-4d46-8b8d-ec003d31ebeb.json.