---
title: "MSSS OBLM Chemical additives to Silo"
ocid: "ocds-b5fd17-cabb220f-7b7e-434f-ad3d-514788925346"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-cabb220f-7b7e-434f-ad3d-514788925346"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-cabb220f-7b7e-434f-ad3d-514788925346.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-cabb220f-7b7e-434f-ad3d-514788925346.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "NATIONAL NUCLEAR LABORATORY LIMITED"
published: "2024-06-19"
---

# MSSS OBLM Chemical additives to Silo

Buyer: NATIONAL NUCLEAR LABORATORY LIMITED  
Current stage: Award  
OCID: ocds-b5fd17-cabb220f-7b7e-434f-ad3d-514788925346

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## Summary

The National Nuclear Laboratory Limited has awarded a contract for the provision of chemical additives to address leaks in the Magnox Swarf Storage Silos. The tender title is "MSSS OBLM Chemical additives to Silo". The procurement is for feasibility study and leak-testing services in the services category. The contract value is £133,100 GBP, and it was awarded through a direct procurement method. The procurement process started on June 3, 2024, and the contract period runs from June 7, 2024, to October 31, 2024, with the delivery address located in the North West region of the United Kingdom.

This tender issued by the National Nuclear Laboratory Limited presents an opportunity for businesses, especially those providing advisory services and leak-testing services, to engage and contribute to addressing the leak issue in the Magnox Swarf Storage Silos. Small and medium-sized enterprises (SMEs) may find this tender particularly suitable for participation. Businesses with expertise in feasibility studies and materials review are well-suited to compete for this contract, which aims to develop solutions to mitigate the leak problem and enhance the overall integrity of the storage silos.

## Notice

The Magnox Swarf Storage Silos (MSSS) were designed to store Magnox swarf residues underwater in a series of silo compartments. The liquor in MSSS is not routinely purged. Instead, additions have been made historically to offset losses due to evaporation and occasional liquor transfers, so that the liquor level is maintained. In 2019, there was an increase in the requirement for water top up in the OB. This was associated with a leak to ground. The extent of the leak has stabilised but frequent addition of water is required to compensate for the loss of volume to the ground. As the leak is continuing, testing is required to establish options to decrease or eliminate the extent of the leak. The main elements of the suggested tasks associated to this contract are: * Desk top study * Small scale tests * Review remaining concerns * Decision on short list of materials at joint meeting. * Address large-scale dosing. * Develop deployment scheme. * Assess TRL and report. * Produce confidence and risk statement

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/2aefa2e7-dad5-4841-b334-0287e8a1690c |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Single tender action (below threshold) |
| Tender suitability | SME |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 19 Jun 2024 |
| Submission deadline | 3 Jun 2024 |
| Future notice date | Not specified |
| Award date | 2 Jun 2024 |
| Contract period | 6 Jun 2024 - 31 Oct 2024 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £133,100 |
| Lots value | Not specified |
| Awards value | £133,100 |
| 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 | NATIONAL NUCLEAR LABORATORY LIMITED |
| Locality | SEASCALE |
| Post town | Carlisle |
| Postcode | CA20 1PG |
| 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 | STEER ENERGY SOLUTIONS |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71241000 - Feasibility study, advisory service, analysis
- 71631430 - Leak-testing services

## Release History

- 19 Jun 2024 at 11:11 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/2aefa2e7-dad5-4841-b334-0287e8a1690c

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/2aefa2e7-dad5-4841-b334-0287e8a1690c
  19th June 2024 - 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-cabb220f-7b7e-434f-ad3d-514788925346. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-cabb220f-7b7e-434f-ad3d-514788925346.json.