---
title: "Nitrogen and Phosphorous Mitigation Agreement"
ocid: "ocds-h6vhtk-04be2f"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-04be2f"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-04be2f.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-04be2f.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "NORFOLK ENVIRONMENTAL CREDITS LIMITED"
published: "2025-07-03"
---

# Nitrogen and Phosphorous Mitigation Agreement

Buyer: NORFOLK ENVIRONMENTAL CREDITS LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-04be2f

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## Summary

The procurement process, titled "Nitrogen and Phosphorous Mitigation Agreement," was initiated by Norfolk Environmental Credits Limited, a body governed by public law situated in Norwich, UK. This contract was focused on the environmental management sector, involving the provision of nutrient mitigation credits to offset nutrient pollution from new residential developments. The process progressed to the Award stage, with the contract being signed on 5th June 2025. The opportunity involved securing nutrient offsets via septic tank upgrades in the Norfolk area, divided into two lots of 100kg/yr and 450kg/yr Total Phosphorus offset, respectively. The procurement method was an open procedure under CELEX legal basis 32014L0024, and the awards were made to Our Rivers (Norfolk) Limited and Norfolk Rivers Consortium Limited.

This tender represents an attractive business opportunity, particularly for SMEs specialising in environmental management and infrastructure upgrades, as it involves the installation of high-efficiency nutrient removal package treatment plants. With a substantial contract value totalling £22,000,000, and specific lots focusing on long-term nutrient mitigation, businesses in the environmental services sector stand to gain significantly. Companies with expertise in septic tank upgrades, nutrient management, and sustainable environmental solutions are well-poised to compete, given the criteria of quality and cost that were central to the award decisions. The involvement of electronic submissions and the emphasis on registered trade professionals underscore the technical proficiency required for effective participation in such tenders.

## Notice

NEC generate, establish and sells nutrient mitigation credits to offset nutrient pollution generated by new residential developments. The services covered in this notice relate to the provision of high efficiency nutrient removal package treatment plants (PTP) for the generation, establishment and sale of nutrient mitigation credits. NEC intend to invite suppliers who specialise in the supply of permanent (90 years) Nitrogen and Phosphorous Mitigation specifically secured via septic tank upgrades. NEC will then trade the nutrient offset/saving as 'credits' to house builders who need to offset the additional nutrients arising from the new houses they intend to build. NEC will only purchase nutrient offset/savings arising from septic tank upgrades located within the catchments effected by Nutrient Neutrality in Norfolk. This opportunity is divided into 2 lots, of 100kg/yr and 450kg/yr Total Phosphorus offset

### Lot Information

100kg/yr Total Phosphorus offset (and associated Total Nitrogen offset) delivered over 12 months and secured for 90 years with installations delivered from contract start date.

Lot 1: Total Phosphorus offset 100kg/yr (plus associated Total Nitrogen offset secured through the septic tank upgrade) delivered over 12 months.

Lot 2: Total Phosphorus offset 450kg/yr (plus associated Total Nitrogen offset secured through the septic tank upgrade) delivered over 24 months.

Lot 2: Total Phosphorus offset 450kg/yr (plus associated Total Nitrogen offset secured through the septic tank upgrade) delivered over 24 months.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/037203-2025 |
| Notice type | Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 3 Jul 2025 |
| Submission deadline | 23 Dec 2024 |
| Future notice date | Not specified |
| Award date | 8 Apr 2025 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £22,000,000 |
| Lots value | £22,000,000 |
| Awards value | Not specified |
| Contracts value | £22,000,000 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Cancelled |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NORFOLK ENVIRONMENTAL CREDITS LIMITED |
| Locality | NORWICH |
| Post town | Norwich |
| Postcode | NR7 )WF |
| Country | England |
| ITL 1 | TLH East (England) |
| ITL 2 | TLH5 Norfolk |
| ITL 3 | TLH51 Norwich and East Norfolk |
| Local authority | Broadland |
| Electoral ward | Brundall |
| Westminster constituency | Broadland and Fakenham |
| Delivery location | TLH15 Norwich and East Norfolk |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 2 |
| Supplier names | NORFOLK RIVERS CONSORTIUM; OUR RIVERS (NORFOLK |

## CPV Codes

### Divisions

- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 90710000 - Environmental management

## Release History

- 3 Jul 2025 at 14:46 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/037203-2025
- 4 Dec 2024 at 15:41 - TenderUpdate - Tender Notice - https://www.find-tender.service.gov.uk/Notice/039103-2024
- 22 Nov 2024 at 17:00 - TenderUpdate - Tender Notice - https://www.find-tender.service.gov.uk/Notice/037912-2024
- 22 Nov 2024 at 16:23 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/037896-2024

## Notice URLs

- https://in-tendhost.co.uk/intendsharedservices/aspx/Home
- https://nationalriversconsortium.com/
- https://norfolkenvironmentalcredits.co.uk
- https://www.norfolkenvironmentalcredits.co.uk/
- https://www.ourrivers.co.uk/

## 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-h6vhtk-04be2f. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-04be2f.json.