Public procurement notice: Contract Award Notice
Published: 2020-07-24
Buyer: The Coal Authority
Country: UK
Contract type: Services
Procedure: Open procedure
CPV classification: 65120000
Estimated value: 2393467 EUR
Award criteria: The most economic tender

Technical requirements: The Coal Authority seeks to let an operation and maintenance contract for the Wheal Jane mine water treatment scheme near Truro, Cornwall. The existing operating contract ends in October 2020.
The Wheal Jane mine water treatment scheme treats mine water pumped from below ground using a high density sludge process. The resultant sludge is pumped to a dam and the treated water is discharged to a stream.
In a typical year approximately 6 million cubic metres of mine water is abstracted, 600 tonnes of metal contaminants (predominantly iron and zinc) are removed and 2 000 tonnes of hydrated lime, 7 000 kg of anionic flocculant and 3 000 MW-h of power are consumed.
In addition to the operating plant, the plant infrastructure includes a workshop, storage facilities and office space. The plant is fully manned 8 a.m.-4 p.m. Monday-Friday, with an out-of-hours emergency on-call roster in operation. During peak periods, skeleton weekend coverage is sometimes necessary.
The Coal Authority seeks to let a 10-year operation and maintenance contract for the Wheal Jane mine water treatment scheme near Truro, Cornwall. The existing operating contract ends in October 2020.
The Wheal Jane mine water treatment scheme treats mine water pumped from below ground using a high density sludge process. The resultant sludge is pumped to a dam and the treated water is discharged to a stream.
In a typical year approximately 6 million cubic metres of mine water is abstracted, 600 tonnes of metal contaminants (predominantly iron and zinc) are removed and 2 000 tonnes of hydrated lime, 7 000 kg of anionic flocculant and 3 000 MW-h of power are consumed.
In addition to the operating plant, the plant infrastructure includes a workshop, storage facilities and office space. The plant is fully manned 8 a.m.-4 p.m. Monday-Friday, with an out-of-hours emergency on-call roster in operation. During peak periods, skeleton weekend coverage is sometimes necessary.
The service required under the contract is the operation of and planned and preventative maintenance to the mine water treatment plant including:
• making informed adjustments to the treatment process to ensure efficient use of chemicals and power;
• developing and implementing a 10-year asset management programme and maintaining an asset management system;
• ensuring compliance with consents, licences and permits and liaising with appropriate regulatory bodies;
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Winner: John F Hunt Regeneration Ltd
Award value: 2393467
Number of bids: 4