---
title: "Dispersed Alkaline Substrate Treatment Pilot Trials at the Parys Mountain and Cwm Rheidol Metal Mines"
ocid: "ocds-kuma6s-102451"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-kuma6s-102451"
markdown_url: "https://d3tenders.com/contract/ocds-kuma6s-102451.md"
json_url: "https://d3tenders.com/contract/ocds-kuma6s-102451.json"
source: "Sell2Wales"
current_stage: "Award"
buyer: "NATURAL RESOURCES WALES"
published: "2024-06-06"
---

# Dispersed Alkaline Substrate Treatment Pilot Trials at the Parys Mountain and Cwm Rheidol Metal Mines

Buyer: NATURAL RESOURCES WALES  
Current stage: Award  
OCID: ocds-kuma6s-102451

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-kuma6s-102451)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-kuma6s-102451.json)

## Summary

The procurement process involves a contract titled "Dispersed Alkaline Substrate Treatment Pilot Trials at the Parys Mountain and Cwm Rheidol Metal Mines" initiated by the buying organisation Natural Resources Wales. The contract falls under the services category in the industry classification. The location of the contract is in Cardiff, UK. The procurement stage is completed, and the contract was awarded on 2020-06-19. Key details include the contract value of 230,000 GBP and a contract duration of 1080 days.

This tender presents business growth opportunities for companies with expertise in environmental services, especially in the treatment of metal mine water. The unique challenge posed by the complex and polluting metal mines at Parys Mountain and Cwm Rheidol requires innovative solutions like the Dispersed Alkaline Substrate treatment. Businesses with proven experience in implementing passive treatment systems for acid mine drainage, particularly those with expertise in the inorganic dissolution of calcite and Magnesium Oxide, would be well-suited to compete for this contract.

### Lot Information

Lot 1

Modifications to the original contract due to unforeseen circumstances include: Parys Mountain - decommissioning of pilot treatment trials and waste disposal

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Sell2Wales |
| Latest notice | https://www.sell2wales.gov.wales/search/search_switch.aspx?ID=102451 |
| Notice type | OJEU - F20 - Modification Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Not Specified |
| Procurement method details | Not specified |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 6 Jun 2024 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 21 Sep 2020 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £801,758 |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NATURAL RESOURCES WALES |
| Locality | CARDIFF |
| Post town | Cardiff |
| Postcode | CF24 0TP |
| Country | Wales |
| ITL 1 | TLL Wales |
| ITL 2 | TLL5 South East Wales |
| ITL 3 | TLL52 Cardiff and Vale of Glamorgan |
| Local authority | Cardiff |
| Electoral ward | Plasnewydd |
| Westminster constituency | Cardiff East |
| Delivery location | TLL Wales |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | GOLDER ASSOCIATES (UK |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71241000 - Feasibility study, advisory service, analysis

## Release History

- 6 Jun 2024 at 00:00 - AwardUpdate - OJEU - F20 - Modification Notice - https://www.sell2wales.gov.wales/search/search_switch.aspx?ID=102451
- 20 Apr 2023 at 00:00 - AwardUpdate - OJEU - F20 - Modification Notice - https://www.sell2wales.gov.wales/search/search_switch.aspx?ID=102451

## Documents

- https://www.sell2wales.gov.wales/search/show/search_view.aspx?ID=APR435274
  Dispersed Alkaline Substrate Treatment Pilot Trials at the Parys Mountain and Cwm Rheidol Metal Mines
- https://www.sell2wales.gov.wales/search/show/search_view.aspx?ID=JUN480120
  Dispersed Alkaline Substrate Treatment Pilot Trials at the Parys Mountain and Cwm Rheidol Metal Mines

## Notice URLs

- http://naturalresourceswales.gov.uk
- https://api.sell2wales.gov.wales/v1?lang=cy/Notice?id=ocds-kuma6s-102451

## 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-102451. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-kuma6s-102451.json.