---
title: "Provision for Cornmill Meadows Hydrological Study"
ocid: "ocds-h6vhtk-0691eb"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0691eb"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-0691eb.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-0691eb.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "LEE VALLEY REGIONAL PARK AUTHORITY"
published: "2026-05-06"
---

# Provision for Cornmill Meadows Hydrological Study

Buyer: LEE VALLEY REGIONAL PARK AUTHORITY  
Current stage: Tender  
OCID: ocds-h6vhtk-0691eb

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## Summary

The Lee Valley Regional Park Authority is seeking tenders for the "Provision for Cornmill Meadows Hydrological Study," a project that falls under the industry categories of geology, surveying, environmental management, consultancy, and protection services. The project, located at Cornmill Meadows, Waltham Abbey, aims to assess the area's hydrology in light of threats to local dragonfly and damselfly populations due to declining water levels. The procurement is in the tender stage, with a deadline for submissions set for 9th June 2026 and an enquiry period ending on 2nd June 2026. The procurement method involves an open competition below the threshold. Successful work will commence on 20th July 2026, with a one-year contract period.

This tender represents an excellent opportunity for businesses specializing in environmental studies, hydrological surveys, and environmental consultancy. Firms capable of conducting in-depth analyses of water flows and offering sustainable water management solutions will find this project aligned with their expertise. The tender allows for electronic submissions, promoting accessibility for potential bidders. Businesses that excel in delivering high-quality and competitively priced solutions will be well-positioned to benefit from this opportunity, with the selection process heavily weighted towards both price (60%) and quality (40%).

## Notice

Lee Valley Regional Park Authority invites tenders for an in-depth Hydrological Study at Cornmill Meadows, Waltham Abbey, EN9 2ES. Cornmill Stream and Old River Lea SSSI is designated for its outstanding assemblage of dragonflies and damselflies. A high-level survey of the site in 2022 found that these species are under threat due to falling water levels and highlighted the urgency of an in-depth hydrology survey to assess the causes and plan for remediation. In addition, work currently underway at the neighbouring Royal Gunpowder Mills (RGM) site seeks to address issues with the co-located Waltham Abbey SSSI. The next stage of that project requires monitoring of water flows in the Cornmill Stream and Old River Lea. The results of this study should meet that demand. Our aim is to understand the hydrology of the Cornmill Stream and Old River Lea SSSI, with particular reference to water flows through the site, and to inform future water management requirements, including under extreme conditions which may occur due to climate change.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/041271-2026 |
| Notice type | UK4 - Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Below threshold - open competition |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 6 May 2026 |
| Submission deadline | 9 Jun 2026 |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 19 Jul 2026 - 19 Jul 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £40,000 |
| Lots value | £40,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | LEE VALLEY REGIONAL PARK AUTHORITY |
| Locality | ENFIELD |
| Post town | Enfield |
| Postcode | EN2 9HG |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI5 Outer London - East and North East |
| ITL 3 | TLI54 Enfield |
| Local authority | Enfield |
| Electoral ward | Whitewebbs |
| Westminster constituency | Enfield North |
| Delivery location | TLH3 Essex |

## CPV Codes

### Divisions

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

### Codes

- 71351910 - Geology services
- 71355000 - Surveying services
- 90710000 - Environmental management
- 90713000 - Environmental issues consultancy services
- 90720000 - Environmental protection

## Release History

- 6 May 2026 at 06:57 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/041271-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/041271-2026
  6th May 2026 - Tender notice on Find a Tender
- https://in-tendhost.co.uk/leevalley/aspx/
  This tender process will be conducted exclusively via the In-Tend platform. Please register there for access to all relevant tender documentation.

## Notice URLs

- http://www.leevalleypark.org.uk
- 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-0691eb. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-0691eb.json.