---
title: "Development of a network of hydrological monitoring across the Long Term Monitoring Network: North Solent"
ocid: "ocds-h6vhtk-05d79b"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d79b"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d79b.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d79b.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "NATURAL ENGLAND"
published: "2025-12-08"
---

# Development of a network of hydrological monitoring across the Long Term Monitoring Network: North Solent

Buyer: NATURAL ENGLAND  
Current stage: Tender  
OCID: ocds-h6vhtk-05d79b

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## Summary

The procurement process titled "Development of a network of hydrological monitoring across the Long Term Monitoring Network: North Solent" was initiated by Natural England, a public authority under the central government, located at Seacole Building, London. The procurement focuses on services in the fields of oceanography and hydrology, situated in the United Kingdom. The tender, identified by NE311025HMNS and valued at £12,500, was an open competition under the legal basis of UKPGA 2023/54. The procurement was in the tender stage until November 24, 2025, at 9:00 AM. However, it has since been completed and is no longer active, as a procurement termination notice was published on December 8, 2025, due to the responses not meeting the required standards.

This tender presented opportunities for businesses involved in environmental monitoring services, particularly those focusing on hydrology and related environmental sciences. It was well-suited for SMEs capable of delivering a conceptual hydrological model as part of Natural England's efforts to understand ecosystem changes driven by hydrological factors. Businesses with expertise in providing strategic environmental insights could have leveraged this opportunity for growth, as the project involved advising on the location for monitoring equipment to assess hydrological impacts on vegetation. The non-electronic submission policy required a traditional tender application process, and interested parties were advised to ensure compliance with the RFQ for eligibility.

## Notice

Natural England's Long Term Monitoring Network (LTMN) started collecting data in 2010, aiming to identify if and how ecosystems are changing and, where relevant, to attribute that change to large-scale ecosystem pressures. Data is collected across 37 sites, most of which are National Nature Reserves. Alongside other data collection, there are approximately 50 permanent vegetation plots and 5 permanent soil plots at each site. Hydrological change is considered to be a potentially significant driver of ecosystem change on all LTMN water -dependent sites, but it is currently poorly understood. This contact requires a conceptual hydrological model to be produced for North Solent NNR. This may be done as a desk based exercise using existing information, or through a site visit if appropriate. From this we require advice on suitable locations for a network of dipwells in relation to the permanent vegetation plots are likely to be impacted by hydrological change.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/080404-2025 |
| Notice type | UK12 - Procurement Termination Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Below threshold - open competition |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 8 Dec 2025 |
| Submission deadline | 24 Nov 2025 |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 27 Nov 2025 - 16 Mar 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £12,500 |
| Lots value | £12,500 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NATURAL ENGLAND |
| Additional buyers | Missing |
| Locality | LONDON |
| Post town | South West London |
| Postcode | SW1P 4DF |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | Westminster |
| Electoral ward | St James's |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services
- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 71351920 - Oceanography and hydrology services
- 90711500 - Environmental monitoring other than for construction

## Release History

- 8 Dec 2025 at 08:22 - TenderCancellation - UK12 - Procurement Termination Notice - https://www.find-tender.service.gov.uk/Notice/080404-2025
- 20 Nov 2025 at 09:06 - TenderUpdate - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/075470-2025
- 31 Oct 2025 at 09:51 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/069949-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/080404-2025
  8th December 2025 - Procurement termination notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/075470-2025
  20th November 2025 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/069949-2025
  31st October 2025 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/Attachment/A-6936
  Request for Quotation.
- https://www.find-tender.service.gov.uk/Notice/Attachment/A-6937
  Order Form
- https://www.find-tender.service.gov.uk/Notice/Attachment/A-6938
  Commercial Response form
- https://www.find-tender.service.gov.uk/Notice/Attachment/A-8095
  Clarification to bidders questions.

## Notice URLs

- https://www.legislation.gov.uk/ukpga/2023/54/contents

## 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-h6vhtk-05d79b. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05d79b.json.