---
title: "Sealing Deep Site Investigation Boreholes - Phase 5"
ocid: "ocds-b5fd17-107b9bb8-d6f8-4195-84a5-00c226b0eafc"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-107b9bb8-d6f8-4195-84a5-00c226b0eafc"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-107b9bb8-d6f8-4195-84a5-00c226b0eafc.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-107b9bb8-d6f8-4195-84a5-00c226b0eafc.json"
source: "Contracts Finder"
current_stage: "Tender"
buyer: "CTM PORTAL FOR THE NDA SHARED SERVICES ALLIANCE"
published: "2021-07-13"
---

# Sealing Deep Site Investigation Boreholes - Phase 5

Buyer: CTM PORTAL FOR THE NDA SHARED SERVICES ALLIANCE  
Current stage: Tender  
OCID: ocds-b5fd17-107b9bb8-d6f8-4195-84a5-00c226b0eafc

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## Summary

The procurement process is being conducted by the CTM Portal for the NDA Shared Services Alliance for the contract titled "Sealing Deep Site Investigation Boreholes - Phase 5". This project falls within the geological and geophysical instruments industry and is situated in the United Kingdom. Currently in the Tender stage, the deadline for submissions is set for 2nd August 2021, with the planned contract period commencing on 1st December 2021 and concluding on 30th November 2026. The total estimated value of the contract is just over £9.5 million, with an initial term of five years and an option for a two-year extension.

This tender presents substantial opportunities for businesses focused on engineering, geological consultancy, and construction services, particularly those with experience in environmental projects and site investigations. Small and medium-sized enterprises (SMEs) as well as voluntary, community, and social enterprises (VCSEs) are encouraged to participate, as the contracting authority seeks qualified contractors to engage in laboratory work and site preparation activities. Businesses that can provide innovative sealing solutions and demonstrate expertise in geological and geotechnical services will likely find themselves well-suited to compete successfully for this contract.

## Notice

RWM's working model for the proposed procurement strategy is for a single contract award with a suitably qualified contractor to deliver Phase 5. This strategy may change based upon the outcome of this market engagement and further development of the procurement strategy. The contract will be for a period of 5 years with an option to extend this for a further 2 years. A DRAFT Contract Technical Specification and Questionnaire can be accessed by registering on the RWM procurement tendering system here: Sellafield Ltd (eu-supply.com) For background on the borehole sealing project, please see http://rwm.nda.gov.uk/publication/sealing-deep-site-investigation-boreholes-phase-1-report-rwmd03042/ (Phase 1 output) and http://rwm.nda.gov.uk/publication/sealing-deep-site-investigation-boreholes-phase-2-final-report/ (Phase 2 output). Activities to be included in Phase 5 will consider 'small-scale' laboratory work on materials such as bentonite, 'large-scale' laboratory work (e.g. using 20m mock-up boreholes), natural analogues (currently progressing via a series of international collaborative projects), a continuation of work on bridge plugs (a collaboration between RWM and two international waste management organisations), field demonstrations in pre-existing boreholes up to 2km deep and in underground research laboratories. No borehole drilling will be undertaken. However, preparing a borehole for sealing may require rehabilitation, removal of abandoned in-hole equipment, milling and under-reaming of a window in borehole casing, etc. - access to coiled tubing and drill string technology is anticipated. Bentonite has already been chosen as the seal material for use in boreholes in lower strength sedimentary rocks and higher strength rocks. Bentonite will be emplaced in boreholes in Phase 5 via use of the Downhole Placement System, a tool has been developed for this project. A different approach can be followed for a borehole penetrating an evaporite layer in Phase 5.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/4e18c79f-6b9c-4ac6-b435-9979fce33804 |
| Notice type | Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Not Specified |
| Procurement method details | Other - |
| Tender suitability | SME, VCSE |
| Awardee scale | Not specified |
| All stages | Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 13 Jul 2021 |
| Submission deadline | 2 Aug 2021 |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 1 Dec 2021 - 30 Nov 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £9,500,001 |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | CTM PORTAL FOR THE NDA SHARED SERVICES ALLIANCE |
| Locality | DIDCOT |
| Post town | Oxford |
| Postcode | OX11 0GD |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ1 Berkshire, Buckinghamshire and Oxfordshire |
| ITL 3 | TLJ14 Oxfordshire CC |
| Local authority | Vale of White Horse |
| Electoral ward | Hendreds |
| Westminster constituency | Didcot and Wantage |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 38 - Laboratory, optical and precision equipments (excl. glasses)
- 45 - Construction work
- 71 - Architectural, construction, engineering and inspection services
- 73 - Research and development services and related consultancy services

### Codes

- 38200000 - Geological and geophysical instruments
- 45000000 - Construction work
- 45100000 - Site preparation work
- 45120000 - Test drilling and boring work
- 71000000 - Architectural, construction, engineering and inspection services
- 71300000 - Engineering services
- 71310000 - Consultative engineering and construction services
- 71330000 - Miscellaneous engineering services
- 71332000 - Geotechnical engineering services
- 71351220 - Geological consultancy services
- 71510000 - Site-investigation services
- 71520000 - Construction supervision services
- 71540000 - Construction management services
- 71900000 - Laboratory services
- 73000000 - Research and development services and related consultancy services
- 73200000 - Research and development consultancy services

## Release History

- 13 Jul 2021 at 10:30 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/4e18c79f-6b9c-4ac6-b435-9979fce33804

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/4e18c79f-6b9c-4ac6-b435-9979fce33804
  13th July 2021 - Opportunity notice on Contracts Finder
- https://sharedsystems.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=13847&B=SELLAFIELD
  Additional data
- https://sharedsystems.eu-supply.com/ctm/Company/CompanyInformation/Index/3510
  User / Company

## Notice URLs

- http://rwm.nda.gov.uk/publication/sealing-deep-site-investigation-boreholes-phase-1-report-rwmd03042/
- http://rwm.nda.gov.uk/publication/sealing-deep-site-investigation-boreholes-phase-2-final-report/
- https://www.gov.uk/government/case-studies/shared-services-alliance-ssa-for-nuclear-decommissioning-estate

## 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-b5fd17-107b9bb8-d6f8-4195-84a5-00c226b0eafc. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-107b9bb8-d6f8-4195-84a5-00c226b0eafc.json.
