Section one: Contracting authority
one.1) Name and addresses
The Coal Authority
200 Lichfield Lane
MANSFIELD
NG184RG
Contact
Adam Beckett
Telephone
+44 7776589350
Country
United Kingdom
Region code
UKF15 - North Nottinghamshire
Justification for not providing organisation identifier
Not on any register
Internet address(es)
Main address
https://www.gov.uk/government/organisations/the-coal-authority
one.3) Communication
Additional information can be obtained from the above-mentioned address
one.4) Type of the contracting authority
Body governed by public law
one.5) Main activity
Environment
Section two: Object
two.1) Scope of the procurement
two.1.1) Title
Westleigh Mine Water Pumping Borehole
two.1.2) Main CPV code
- 76530000 - Downhole services
two.1.3) Type of contract
Services
two.1.4) Short description
1. Background
The Coal Authority (CA) requires a mine water pumping borehole to assess rising mine water on the surrounding environment at Westleigh, Wigan. A review of the mine water block has highlighted that mine water levels in the area could be elevated in respect to the rest of the block. There is potential for elevated mine water levels which could pose a risk to the overlying drinking water aquifers and the surface water environment.
Therefore, the CA requires construction of a borehole to intersect flooded underground workings and will be used to improve understanding of mine water in the Golborne-Bickershaw-Parsonage mine water sub-block of the Lancashire Coalfield, through water level monitoring, quality sampling and long-term abstraction.
2. Key Requirements
The Contractor will be responsible for specific construction details to achieve the borehole requirements, as specified below.
Summary of key requirements
Operational time: By March 2025.
* Methodology: Anticipated to require a pilot hole to be drilled by wireline coring methods to assist in maintaining verticality.
* Borehole depth: Estimated 200 - 250 metres below ground level (m bgl).
* Final internal diameter: Minimum of 400mm.
* Borehole deviation: 2m from surface location of borehole (0.6° from vertical).
* Design life: Minimum of 20 years.
* Headworks: To be completed under a square split lockable manhole cover at surface, minimum of 600mm x 600mm with D400 rating.
two.1.5) Estimated total value
Value excluding VAT: £500,000
two.1.6) Information about lots
This contract is divided into lots: No
two.2) Description
two.2.2) Additional CPV code(s)
- 76532000 - Downhole pumping services
two.2.3) Place of performance
NUTS codes
- UKD - North West (England)
Main site or place of performance
Westleigh - Wigan - North West - UK
two.2.4) Description of the procurement
Open Tender
two.2.14) Additional information
The Coal Authority (Client) was established by Parliament to undertake specific statutory duties, set out in the Coal Industry Act 1994, associated with licensing coal mining operations; managing property and the historic legacy arising from the ownership of the coal reserves and underground workings; settling subsidence damage claims not falling on coal mine operators and providing access to coal mining information.
Coal Authority tenders are now being undertaken by the Authority's eTender portal InBye, details of how to register are attached to this notice.
Should you wish to participate in any electronic tender exercise you will need to register your company details, which will require the provision of some company information and agreement to terms and conditions to access the system.
Use of the system is free of charge.
In order to register please log on to https://inbye.coal.gov.uk/s2c/
two.3) Estimated date of publication of contract notice
1 July 2024
Section four. Procedure
four.1) Description
four.1.8) Information about the Government Procurement Agreement (GPA)
The procurement is covered by the Government Procurement Agreement: Yes