--- title: "Contaminated Sediment and Weir Assessment" ocid: "ocds-kuma6s-161616" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-kuma6s-161616" markdown_url: "https://d3tenders.com/contract/ocds-kuma6s-161616.md" json_url: "https://d3tenders.com/contract/ocds-kuma6s-161616.json" source: "Sell2Wales" current_stage: "Tender" buyer: "NORTH WALES RIVER TRUST" published: "2026-02-13" --- # Contaminated Sediment and Weir Assessment Buyer: NORTH WALES RIVER TRUST Current stage: Tender OCID: ocds-kuma6s-161616 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-kuma6s-161616) [Download OCDS JSON](https://d3tenders.com/contract/ocds-kuma6s-161616.json) ## Summary The North Wales River Trust is inviting proposals for the "Contaminated Sediment and Weir Assessment" project, which is currently in the tender stage. This public procurement process is focused on environmental consultancies capable of assessing a historic weir structure and associated contaminated sediments resulting from historical lead mining activities. The procurement method is open, indicating a competitive and transparent approach. The project falls under the industry category of research and development services, with works being the main procurement category. Located in Brynrefail, Gwynedd, Wales, this tender is open until 20th February 2026, with submissions required by 12:00 PM on that date. Consultants wishing to contribute must have substantial experience in areas such as contaminated land and river structures. This tender offers diverse opportunities for growth to environmental consultancies. Businesses with expertise in sediment chemistry, historic mining impacts, and environmental risk assessment can leverage their skills and expand their portfolio by participating in this tender. Companies with a track record of similar projects are positioned to benefit greatly, as the opportunity requires demonstrating previous experience and relevant qualifications. Engaging in this project can enhance business reputation and visibility within this specialised industry, potentially leading to further opportunities in research and environmental consultancy services. The assessment is ideally required by the end of the financial year, providing a defined timeline for project execution and delivery. ## Notice This brief invites suitably qualified environmental consultancies to submit proposals to undertake a contaminated sediment and weir risk assessment at a historic weir structure where sediments are known to be contaminated with lead from former mining activity.The weir is located on a watercourse affected by historic lead mining activity. Sediments impounded upstream of the structure are known or suspected to be contaminated with lead and potentially associated metals. Any future management, modification or removal of the weir must be informed by a robust understanding of sediment contamination, pollution risk, and structural considerations.NOTE: To register your interest in this notice and obtain any additional information please visit the Sell2Wales Web Site at https://www.sell2wales.gov.wales/Search/Search_Switch.aspx?ID=161616. Please see additional document for more information and photos(WA Ref:161616) ## Key Details | Field | Value | | --- | --- | | Publication source | Sell2Wales | | Latest notice | https://www.sell2wales.gov.wales/search/search_switch.aspx?ID=161616 | | Notice type | S2W Notice - Website Invitation to Tender Notice | | Procurement type | Standard | | Procurement category | Works | | Procurement method | Open | | Procurement method details | Not specified | | Tender suitability | Not specified | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 13 Feb 2026 | | Submission deadline | 20 Feb 2026 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | Not specified | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | Not specified | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Not specified | | Lots status | Not specified | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | NORTH WALES RIVER TRUST | | Locality | BRYNREFAIL | | Post town | Llandudno | | Postcode | LL55 3NR | | Country | Wales | | ITL 1 | TLL Wales | | ITL 2 | TLL3 North Wales | | ITL 3 | TLL32 Gwynedd | | Local authority | Gwynedd | | Electoral ward | Cwm-y-glo | | Westminster constituency | Dwyfor Meirionnydd | | Delivery location | Not specified | ## CPV Codes ### Divisions - 73 - Research and development services and related consultancy services ### Codes - 73000000 - Research and development services and related consultancy services ## Release History - 13 Feb 2026 at 15:27 - Tender - S2W Notice - Website Invitation to Tender Notice - https://www.sell2wales.gov.wales/search/search_switch.aspx?ID=161616 ## Notice URLs - http://www.northwalesriverstrust.org - https://www.sell2wales.gov.wales - https://www.sell2wales.gov.wales/Search/Search_Switch.aspx?ID=161616 ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-kuma6s-161616. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-kuma6s-161616.json.