Scope
Reference
CA18/2/1/127
Description
The purpose of these works is to prevent the Nant y Bai watercourse from continuing to scour (causing active erosion of) spoil heaps that make up its banks and causing mobilisation of metal-rich spoil into the watercourse. It is proposed to install a mixture of scour protection interventions including rock filled rolls and bags, geotextile matting and wooden stakes at a number of discrete areas along the bank to stabilise the spoil and prevent ongoing erosion by the Nant y Bai. We would welcome input from the Contractor regarding current design methodology based on previous experiences.
The Works comprise the following:
• Install scour protection measures in accordance with the drawings;
• Install slope stabilisation measures in accordance with the drawings;
• Supply and install 150No. rock filled bags as specified on the drawings and as directed on site to provide scour protection in Areas 3, 5 and 6;
• Translocate Purple Moor grass into the working area in accordance with the drawings. The source of Purple Moor grass to be agreed with the ecological supervisor but shall be within the Site;
• Install silt traps in accordance with the drawings;
• Install an overland pipe with associated capture structure and outfall structure in accordance with the drawings;
• Deliver plant and materials along designated routes to limit impact on the protected ecology and provide any equipment necessary to minimize the impact on the designated routes. This may include helicopters to aid in load lifting and placement of rock roll bags; and
• Plan and execute temporary flow diversion measures to enable the Works in the river bed to be completed.
The Works must be carried out, including transportation of plant and materials, in a way that:
• Does not cause undue harm to the local ecology, including plants, trees and particularly the protected Calaminarian habitats (comprising metallophyte flowering and non-flowering plant species);
• Does not damage local heritage features, including historic mining structures and artefacts;
• Does not cause undue disruption to the local community;
• Does not cause damage to existing services;
• Does not cause damage to the forest track road,
• Is in accordance with the relevant Environmental Action Plan (EAP) as prepared by the Mining Remediation Authority and agreed with NRW.
Contract 1. Nant Y Mwyn Scour Protection Works
Supplier
Contract value
- £151,415.73 excluding VAT
- £181,698.88 including VAT
Below the relevant threshold
Award decision date
29 January 2026
Earliest date the contract will be signed
11 February 2026
Contract dates (estimated)
- 16 February 2026 to 29 May 2026
- Possible extension to 1 September 2026
- 6 months, 14 days
Description of possible extension:
An extension may be required due to adverse weather conditions in the area or other conditions on site which prevent a timely delivery of works.
Main procurement category
Works
CPV classifications
- 45112450 - Excavation work at archaeological sites
Contract locations
- UKL - Wales
Information about tenders
- 8 tenders received
- 8 tenders assessed in the final stage:
- 8 submitted by small and medium-sized enterprises (SME)
- 0 submitted by voluntary, community and social enterprises (VCSE)
- 1 supplier awarded contracts
- 7 suppliers unsuccessful (details included for contracts over £5 million)
Procedure
Procedure type
Below threshold - open competition
Supplier
SANCTUS LIMITED
- Companies House: 04886688
- Public Procurement Organisation Number: PPRW-4732-YNBJ
Sanctus House 1 Olympus Park Business Centre
Gloucester
GL2 4DH
United Kingdom
Email: info@sanctusltd.co.uk
Website: http://www.sanctusltd.com
Region: UKK13 - Gloucestershire
Small or medium-sized enterprise (SME): Yes
Voluntary, community or social enterprise (VCSE): No
Contract 1. Nant Y Mwyn Scour Protection Works
Contracting authority
Mining Remediation Authority
- Public Procurement Organisation Number: PRPD-5825-QDVY
200 Lichfield Lane
Nottinghamshire
NG18 4RG
United Kingdom
Contact name: Natalie Earnshaw
Region: UKF15 - North Nottinghamshire
Organisation type: Public authority - central government