---
title: "Active Treatment Trials - innovative technology and approaches"
ocid: "ocds-b5fd17-ace85b05-47c3-4b72-a87f-6c9340227cd5"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-ace85b05-47c3-4b72-a87f-6c9340227cd5"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-ace85b05-47c3-4b72-a87f-6c9340227cd5.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-ace85b05-47c3-4b72-a87f-6c9340227cd5.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "MINING REMEDIATION AUTHORITY"
published: "2025-07-02"
---

# Active Treatment Trials - innovative technology and approaches

Buyer: MINING REMEDIATION AUTHORITY  
Current stage: Award  
OCID: ocds-b5fd17-ace85b05-47c3-4b72-a87f-6c9340227cd5

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## Summary

The public procurement process for the "Active Treatment Trials - innovative technology and approaches" contract has reached the award stage, managed by the Mining Remediation Authority. The tender, initially published on 24 September 2024, falls under the industry category "Water-treatment work" and encompasses regions across North East, North West, and South West, United Kingdom. This open procedure commenced with a submission deadline of 29 October 2024, with awarded contracts beginning on 4 February 2025 and concluding on 30 April 2026. The procurement process is part of efforts to address river pollution caused by abandoned metal mines, with active treatment options being trialled at up to five sites as part of the broader Water and Abandoned Metal Mines Programme.

This tender represents a substantial opportunity for businesses specialising in environmental technologies, particularly those focusing on water treatment solutions, as the total contract value is £680,326. Small and Medium-sized Enterprises (SMEs) are encouraged to participate, with potential for multiple contracts being awarded. Successful bidders will have the chance to showcase their innovative approaches to mine water treatment on a pilot scale, creating opportunities for establishing themselves in the market of environmental and water management services, aligning with the UK government's environmental improvement goals. The contracting authority encourages site visits to better understand project requirements, ensuring that participating businesses are well-prepared to deliver optimal solutions.

## Notice

In 2011, the Water and Abandoned Metal Mines (WAMM) Programme was set up between the Environment Agency, Defra and the Coal Authority to address pollution of rivers by abandoned metal mines. Currently, the Coal Authority operates four WAMM mine water treatment schemes, each using a different treatment technology, which are improving water quality in about 20 km of rivers. In January 2023, Parliament adopted a statutory metal mines target, under the Environment Act 2021, to halve the length of English rivers polluted by harmful metals from abandoned metal mines by 2038. The Government's Environmental Improvement Plan (EIP), published in January 2023, estimated that to achieve this long-term target would likely require around 40 new mine water treatment schemes and a similar number of diffuse interventions. The EIP set a non-statutory interim target to construct 8 mine water treatment schemes and 20 diffuse interventions by 31 January 2028. To help deliver the interim and long-term targets, the WAMM Programme is currently investigating active treatment options for mine water discharging from abandoned metal mines by undertaking active treatment trials on up to five sites This opportunity is now open with a submission deadline of 29 October 2024 All interested parties are advised to visit each site to familiarise themselves with the sites layout, limitations, restrictions and access. Visits to the premises must be made by appointment only with the Coal Authority . There is limited parking at each site, interested parties shall only attend at the agreed time provided by the Client. Wheal Jane, TR3 6EE: 15th October 2024 Bridford, Nr EX6 7AR: 16th October 2024 Cambokeels, Nr DL13 2HW: 1st October 2024 Killhope, DL13 1AR: 30th September 2024 Nent Haggs, CA9 3LE: 3rd October 2024 PPE required: * High viz vest * High viz trousers * Safety Boots * Eye protection * Gloves * Hard hat Should you wish to attend any , or all of the sites please contact peterkobryn@coal.gov.uk who will confirm arrangements Full and free access to all tender documents is available through the Coal Authority portal InBye Additional information: The appointed party / parties will design and undertake pilot trials for the active treatment of mine water of up to 5 no. sites to obtain data for optimised treatment process and costs for treating the mine water at full-scale. The Coal Authority is looking to award a number of packages of work through this tender ranging from 1 no. of the active trials up to 5 no. active trails. These may be at any of the 5 identified sites. The Coal Authority reserves the right to award to multiple parties depending on the proposals provided during the tender period. Tenders shall be scored on the basis of most advantageous economic tender against criteria to be published in the tender documents. The appointed party / parties shall design and supply a suitable pilot scale active treatment plant for each of the mine water sources to be treated. The appointed party / parties shall provide an individual report at the end of each trial detailing the outcomes.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/5dd37d06-0a32-4adb-bfe0-4a8aecc11ca9 |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Open procedure (above threshold) |
| Tender suitability | SME |
| Awardee scale | Large, SME |
| All stages | Planning, Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 2 Jul 2025 |
| Submission deadline | 25 Nov 2024 |
| Future notice date | 23 Sep 2024 |
| Award date | 3 Feb 2025 |
| Contract period | 4 Feb 2025 - 30 Apr 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £500,000 |
| Lots value | Not specified |
| Awards value | £680,326 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | MINING REMEDIATION AUTHORITY |
| Additional buyers | THE COAL AUTHORITY |
| Locality | MANSFIELD |
| Post town | Nottingham |
| Postcode | NG18 4RG |
| Country | England |
| ITL 1 | TLF East Midlands (England) |
| ITL 2 | TLF1 Derbyshire and Nottinghamshire |
| ITL 3 | TLF15 North Nottinghamshire |
| Local authority | Mansfield |
| Electoral ward | Berry Hill |
| Westminster constituency | Mansfield |
| Delivery location | TLC North East (England), TLD North West (England), TLK South West (England) |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 3 |
| Supplier names | ARCADIS; SAND SEPARATIONS SYSTEMS; X-RAY MINERAL SERVICES |

## CPV Codes

### Divisions

- 45 - Construction work

### Codes

- 45232430 - Water-treatment work

## Release History

- 2 Jul 2025 at 10:29 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/5dd37d06-0a32-4adb-bfe0-4a8aecc11ca9
- 15 Nov 2024 at 15:47 - TenderAmendment - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/750ff51b-dc79-4991-a538-fc3da35c8a52
- 24 Sep 2024 at 15:17 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/750ff51b-dc79-4991-a538-fc3da35c8a52
- 2 Sep 2024 at 09:59 - Planning - Planned Procurement Notice - https://www.contractsfinder.service.gov.uk/Notice/ac4859b5-3aab-46c3-ac25-1477d21a5576
- 19 Aug 2024 at 16:27 - Planning - Planned Procurement Notice - https://www.contractsfinder.service.gov.uk/Notice/ac4859b5-3aab-46c3-ac25-1477d21a5576
- 19 Aug 2024 at 16:23 - Planning - Planned Procurement Notice - https://www.contractsfinder.service.gov.uk/Notice/ac4859b5-3aab-46c3-ac25-1477d21a5576

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/5dd37d06-0a32-4adb-bfe0-4a8aecc11ca9
  2nd July 2025 - Awarded contract notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/750ff51b-dc79-4991-a538-fc3da35c8a52
  15th November 2024 - Opportunity notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/ac4859b5-3aab-46c3-ac25-1477d21a5576
  2nd September 2024 - Future opportunity notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/649776da-82c4-41cd-8dcb-63c9231aa7c2
  Find attached more details about this forthcoming opportunity
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/589f7bc8-8074-48e1-8d43-3450a34cd792
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/e8511b30-6628-4b64-88bb-0e412f928415
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/43342b92-784a-4a5a-b244-e749c6597c4a
  Guidance on how to access the tender documents in our procurement portal

## 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-b5fd17-ace85b05-47c3-4b72-a87f-6c9340227cd5. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-ace85b05-47c3-4b72-a87f-6c9340227cd5.json.