Source: https://tendernation.io/opportunities/01a13c7f-f193-7038-8ef6-c8772c5dec04/nan-y-mwyn-borehole-installation-works awarded GB open procedure Suitable for SMEs # Nan y Mwyn - Borehole Installation Works [The Coal Authority](https://tendernation.io/buyers/the-coal-authority) Estimated value £15,000 Published 21 May 2021 Deadline Closed 11 Jun 2021 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Small contract value Valued under £135,018 including VAT, the lowest Procurement Act threshold for goods and services. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender The Coal Authority (CA) is commissioned by Cyfoeth Naturiol Cymru (Natural Resources Wales - NRW) to undertake engineering interventions for the remediation of pollution by abandoned metal mining at and around Nant y Mwyn Mine, Carmarthenshire. The interventions include the assessment of blow-out potential, and minewater treatment from the historic Deep Boat Level Adit. The Nant y Mwyn Mine is located to the north-west of the village of Rhandirmyn, Carmarthenshire, Wales, 10 km north of Llandovery, at NGR SN782438 (approx. postcode SA20 0PF). The works comprise installation of a borehole to intercept the Nant y Mwyn Deep Boat Level Adit. This will involve the advancement of up to 3No. rotary-drilled boreholes to confirm the location of the historic Deep Boat Level Adit. Work locations and provisional access routes are shown on drawing EV00483-010. Please see supporting documents for more detailed information. The Environmental Action Plan (EAP) summarises the actions required to implement the environmental mitigation for the proposed Ground Investigation works at the Nant y Mwyn site. It sets out specific objectives and actions defining the way in which environmental risks should be minimised. It also details roles and responsibilities of those involved in the proposed works. The Environmental Action Plan and actions contained therein must be adhered to. ## CPV classification Drilling and exploration work Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/d3ac63c4-9d06-4f46-8041-b9de76183e76) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile The Coal Authority: past awards and live tenders](https://tendernation.io/buyers/the-coal-authority) [Sector More Construction work tenders](https://tendernation.io/sectors/construction-work) ## More tenders like this [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Hdc-1714 wadkins pavilion refurbishment · Harborough District Council · 39 days left · 27 Nov 2026](https://tendernation.io/opportunities/01a155bf-f664-72f9-9823-a85d6cddbdc6/hdc-1714-wadkins-pavilion-refurbishment) [Design, supply, and Installation of Newbiggin Skatepark Extension · Newbiggin Town Council · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a15552-19a2-7348-a5cc-3f5ae51ef934/design-supply-and-installation-of-newbiggin-skatepark-extension) [Tender for the design, supply, delivery and installation of a modular UNIT and associated works at ARC healthy living, irvinestown. peaceplus funded upgrade works · Fermanagh and Omagh District Council · 14 days left · 2 Nov 2026](https://tendernation.io/opportunities/01a15552-1b74-73ec-a6f6-a1af37959997/tender-for-the-design-supply-delivery-and-installation-of-a-modular-unit-and-a) [ESPH AB RDC Sidley Depot (ESPH753) · Rother District Council · 49 days left · 7 Dec 2026](https://tendernation.io/opportunities/01a15552-1d19-7155-8fe0-0d917105fca8/esph-ab-rdc-sidley-depot-esph753) [Demolition, Design and Construction of Howard's Lane Public Toilets, Howard's Lane, Wareham · Wareham Town Council · 88 days left · 15 Jan 2027](https://tendernation.io/opportunities/01a15552-1d8a-7277-bc5b-edc9a127ee5b/demolition-design-and-construction-of-howards-lane-public-toilets-howards-la)