Source: https://tendernation.io/opportunities/01a13c45-c4db-70e9-95ba-b650457eb2f2/lynemouth-design-manufacture-and-installation-of-lagoon-baffles awarded GB open procedure Suitable for SMEs # Lynemouth - Design, Manufacture and Installation of Lagoon Baffles [The Coal Authority](https://tendernation.io/buyers/the-coal-authority) Estimated value Not stated Published 9 Aug 2019 Deadline Closed 20 Sept 2019 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - 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 Employer requires a pair of bespoke baffles to be designed, manufactured and installed in a lagoon located at Lynemouth Mine Water Treatment Scheme. The Lynemouth Phase I mine water treatment scheme (MWTS) is located on the Northumberland coast on the site of the former Ellington Colliery. Coal mine water is abstracted at a rate of circa. 115 L/s from an abandoned mine shaft, treated through two lagoons configured in series before being discharged into the sea. The lagoons are constructed in colliery spoil and lined with an HDPE liner. The treatment process is designed to reduce total iron in the effluent which presents as ochre sludge in the lagoons; the mine water is currently subject to peroxide dosing. Lagoons are taken off line periodically (24 month intervals) to remove sludge by means of pumping. The site is in a remote location there being no permanent welfare facilities on the site. The employer intends to install two baffles in lagoon No 1 in order to optimise: • mean residence time; • longitudinal mixing characteristics; • reaction and settlement of ochre within the lagoon. Additional information: To submit a tender for this opportunity please sign into our tender portal InBye where the questionnaire and all technical documents are to be found. Submissions will only be accepted through the portal - please see attached guidance on how to access the documents There is an opportunity for an escorted site visit on the morning of 21 August at 1000hrs - if you wish to attend please inform us by sending a message through the tender portal once you have signed into the portal Read full description ## CPV classification Hydraulic installations Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/bf212f68-8c23-40a2-9319-99ac65b8bb51) 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 Mining & construction machinery tenders](https://tendernation.io/sectors/mining-construction-machinery) ## More tenders like this [Mobile hydraulic-powered mine roof supports – Dostawa zespołów i elementów wykonawczych sterujących hydrauliki sterowniczej do sekcji obudów zmechanizowanych dla Oddziałów Polskiej Grupy Górniczej S.A. - nr grupy 295-15. · Polska Grupa Górnicza S.A. · 39 days left · 27 Nov 2026](https://tendernation.io/opportunities/01a156a9-e755-719b-beec-8fc0dc6969a7/poland-mobile-hydraulic-powered-mine-roof-supports-dostawa-zespolow-i-elemen) [Mining equipment – Dostawa 4 lokomotyw dołowych akumulatorowych dla potrzeb PGG S.A. KWK Piast-Ziemowit Ruch Piast · Polska Grupa Górnicza S.A. · 37 days left · 25 Nov 2026](https://tendernation.io/opportunities/01a156aa-0d2f-7031-badb-643e6d08bc79/poland-mining-equipment-dostawa-4-lokomotyw-dolowych-akumulatorowych-dla-pot) [Parts of machinery for mining, quarrying and construction – REZERVNI DIJELOVI, POPRAVAK I SERVIS STROJEVA I PRIKLJUČNE OPREME ZA GRAĐEVINARSTVO · Zagrebački Holding d.o.o. · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a156a9-642d-70aa-89e8-1fff32455c6a/croatia-parts-of-machinery-for-mining-quarrying-and-construction-rezervni-d) [Irrigation equipment – Furnizare și montare sisteme fixe de irigații solarii Pepiniera Silvică Simileasca · Regia Nationala A Padurilor - Romsilva Ra · 30 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a156a9-e6f9-7003-8bc4-419e9d4c21c0/romania-irrigation-equipment-furnizare-si-montare-sisteme-fixe-de-irigatii-s) [Sorting and screening machines – Sustitución de separador óptico para la mejora de eficiencia en la recuperación de envases de la fracción resto en la Planta de tratamiento de residuos de Cárcar (Navarra). · Servicios de Montejurra, S.A. · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a156aa-0ab1-71c4-adbd-46a9a788a50e/spain-sorting-and-screening-machines-sustitucion-de-separador-optico-para-la) [Irrigation equipment – Furnizare și montare sistem mobil de irigații Pepiniera Silvică Simileasca · Regia Nationala A Padurilor - Romsilva Ra · 30 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a156aa-1b3e-7376-a755-e4eda31649e6/romania-irrigation-equipment-furnizare-si-montare-sistem-mobil-de-irigatii-p)