---
title: "RDE613 Audit of hydrodynamic nutrient models for estuaries under OFWAT PR24"
ocid: "ocds-b5fd17-36bc3ea9-c3fe-47df-ad18-97575d6f7264"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-36bc3ea9-c3fe-47df-ad18-97575d6f7264"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-36bc3ea9-c3fe-47df-ad18-97575d6f7264.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-36bc3ea9-c3fe-47df-ad18-97575d6f7264.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "NATURAL ENGLAND"
published: "2024-08-19"
---

# RDE613 Audit of hydrodynamic nutrient models for estuaries under OFWAT PR24

Buyer: NATURAL ENGLAND  
Current stage: Award  
OCID: ocds-b5fd17-36bc3ea9-c3fe-47df-ad18-97575d6f7264

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## Summary

The procurement process conducted by Natural England involves the project titled "RDE613 Audit of hydrodynamic nutrient models for estuaries under OFWAT PR24." This project falls under the industry category of research and development consultancy services (CPV: 73200000). The procurement stage is Award, with key contractual dates starting from 19 August 2024 to 31 March 2025. The tender is aimed at investigating nutrient and chemical levels in various estuarine and coastal protected areas across locations, which include the United Kingdom, British Overseas Territories, Channel Islands, Isle of Man, Europe, and the Rest of the World. The procurement method used is selective, stemming from a call-off from a framework agreement, with the project value amounting to £62,730 GBP.

This tender provides significant opportunities for businesses involved in environmental consultancy, particularly those with expertise in hydrodynamic modelling and water quality assessments. It is well-suited for SMEs and VCSEs that can deliver comprehensive nutrient and chemical modelling to help inform decisions on permit limits for wastewater treatment works. By participating, businesses can leverage their technical skills to contribute to the understanding and management of environmental standards in protected areas, potentially leading to further contracts in similar projects and bolstering their reputation in the industry.

## Notice

Under the water industry national environment programme (WINEP) 2024 price review (PR24), water companies are required to carry out investigations in estuarine and coastal protected areas (Sites of Special Scientific Interest (SSSIs), Special Protection Areas (SPAs), Special Areas of Conservation (SACs), Marine Conservation Zones (MCZs) and Ramsar sites), where there is evidence that conditions are unfavourable for nutrients and water company assets may be significant contributors to nutrient loading. As part of these investigations, 3D hydrodynamic models will be built to model dispersion of contaminants (in particular nutrients) from Wastewater Treatment Works (WwTWs) and other sources and will predict concentrations of contaminants in space and time from point discharges. These investigations have been put forward by Natural England (NE) under Habitats Directive and SSSI drivers. NE have requested 11 models in estuaries and costal protected areas which are considered unfavourable for nutrients. This is alongside six sites put forward by the Environment Agency (EA) to model chemicals. This contract will be focused on nutrient investigations led by NE, although in some instances models will jointly include chemicals and nutrient investigation so some elements may be combined. Once produced, the models will aid in improving NE/EA's understanding of the concentration of contaminants in receiving waters and protected areas, to enhance our capability to assess the potential risks and impacts on protected features. These models will be essential to inform decision making when establishing appropriate permit limits for the WwTW needed to restore each estuarine and coastal protected areas to favourable nutrient conditions. Reporting on progress will be required through a seven step phased process: Phase 1: Review of behaviour of pollutants of concern in UK estuaries, including sediment attachment/detachment. (Complete Sept 2023) Phase 2: Review of existing models. Phase 3: Data review and gap analysis. Phase 4: Data collection. Phase 5: Model development and calibration Phase 6: Model validation Phase 7: Scenario testing, with a view to determining permit limits Models will be produced in line with the model scope produced jointly by the EA and NE, which sets out the specification of requirements for models to be delivered (see Appendix A).

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/c094c256-de58-4360-8d26-467ea4b4a1d4 |
| Notice type | Award Notice |
| Procurement type | Framework |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Call-off from a framework agreement |
| Tender suitability | SME, VCSE |
| Awardee scale | Not specified |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 19 Aug 2024 |
| Submission deadline | 12 Aug 2024 |
| Future notice date | Not specified |
| Award date | 18 Aug 2024 |
| Contract period | 18 Aug 2024 - 31 Mar 2025 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £62,730 |
| Lots value | Not specified |
| Awards value | £62,730 |
| 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 | NATURAL ENGLAND |
| Locality | LONDON |
| Post town | South West London |
| Postcode | SW1P 3JR |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | Westminster |
| Electoral ward | St James's |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | JEREMY BENN ASSOCIATES LIMITED (T/A JBA CONSULTING |

## CPV Codes

### Divisions

- 73 - Research and development services and related consultancy services

### Codes

- 73200000 - Research and development consultancy services

## Release History

- 19 Aug 2024 at 15:27 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/c094c256-de58-4360-8d26-467ea4b4a1d4

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/c094c256-de58-4360-8d26-467ea4b4a1d4
  19th August 2024 - Awarded contract notice on Contracts Finder

## Provenance

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