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Provision for Cornmill Meadows Hydrological Study

Lee Valley Regional Park Authority

This public procurement record has 2 releases in its history.

Award

16 Jul 2026 at 12:16

UK6 - Contract Award Notice
Tender

06 May 2026 at 07:57

UK4 - Tender Notice
Summary of the contracting process

Lee Valley Regional Park Authority commissioned an in-depth hydrological study of Cornmill Stream and Old River Lea Site of Special Scientific Interest (SSSI) at Cornmill Meadows, Waltham Abbey. The work is intended to understand water flows through the site, investigate falling water levels affecting its dragonfly and damselfly populations, and inform future water management and remediation. It must also support monitoring linked to work at the neighbouring Royal Gunpowder Mills site and consider extreme conditions associated with climate change. The requirement is an environmental consultancy and surveying service, covering hydrology, environmental management, environmental protection and related geological or surveying work. Delivery is at Cornmill Meadows, Waltham Abbey, with the buyer based at Lee Valley Regional Park Authority.

The procurement is complete and the contract was awarded to Adler and Allan Limited on 14 July 2026. It was a below-threshold open competition, with five final bids, all from SMEs. The tender submission deadline was 9 June 2026 at 12:00, following an enquiry deadline of 2 June 2026 at 12:00. The awarded value is £42,413.57 excluding VAT (£50,897.49 including VAT). The award notice gives a contract period from 1 October 2026 to 30 September 2027; the tender lot records a period from 20 July 2026 to 19 July 2027. There was one lot. Evaluation was based on price weighted at 60% and quality at 40%. Contract signature was scheduled by 3 August 2026.

This award demonstrates demand from Lee Valley Regional Park Authority for specialist hydrological and environmental evidence to support protected wetland management. Suppliers well placed for a future requirement would need capability in hydrological surveying, water-flow monitoring and analysis, environmental management and consultancy, with the ability to assess causes of changing water levels and advise on remediation. Experience of working in or around Sites of Special Scientific Interest would be directly relevant, as would competence in assessing water-management risks under extreme or changing climate conditions. The work also calls for coordination with a neighbouring project and the ability to produce findings that inform practical monitoring and future management decisions. A competitive supplier would need to demonstrate strong technical quality alongside cost-effective delivery.

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Notice Information

Notice Title

Provision for Cornmill Meadows Hydrological Study

Notice Description

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.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-0691eb
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/067214-2026
Current Stage
Award
All Stages
Tender, Award

Procurement Classification

Notice Type
UK6 - Contract Award Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Open
Procurement Method Details
Below threshold - open competition
Tender Suitability
Not specified
Awardee Scale
SME

Common Procurement Vocabulary (CPV)

CPV Divisions

71 - Architectural, construction, engineering and inspection services

90 - Sewage, refuse, cleaning and environmental services

CPV Codes

71351910 - Geology services

71355000 - Surveying services

90710000 - Environmental management

90713000 - Environmental issues consultancy services

90720000 - Environmental protection

Notice Value(s)

Tender Value
£40,000 Under £100K
Lots Value
£40,000 Under £100K
Awards Value
£42,413 Under £100K
Contracts Value
Not specified

Notice Dates

Publication Date
16 Jul 20262 months ago
Submission Deadline
9 Jun 2026Expired
Future Notice Date
Not specified
Award Date
14 Jul 20262 months ago
Contract Period
1 Oct 2026 - 30 Sep 2027 6-12 months
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Complete
Awards Status
Active
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Lee Valley Regional Park Authority
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
ENFIELD
Postcode
EN2 9HG
Postcode Area
Enfield
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI5 Outer London - East and North East
Small Region (ITL 3)
TLI54 Enfield
Delivery Location
TLH3 Essex
Local Authority
Enfield
Electoral Ward
Whitewebbs
Westminster Constituency
Enfield North

Supplier Information

Number of Suppliers
1
Supplier Name

ADLER & ALLAN LIMITED

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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