Source: https://tendernation.io/opportunities/01a13bb3-cac4-700d-86ca-ccee69ced812/nitrogen-and-phosphorous-mitigation-agreement awarded GB open procedure # Nitrogen and Phosphorous Mitigation Agreement [Norfolk Environmental Credits Limited](https://tendernation.io/buyers/norfolk-environmental-credits-limited) Estimated value £22,000,000 Published 3 Jul 2025 Deadline Closed 23 Dec 2024 ## Who can bid - Split into 2 lots You can usually bid for just the lots you can deliver. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender 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 ## CPV classification Environmental management Source Find a Tender (UK) · Notice ocds-h6vhtk-04be2f-2025-07-03T15:46:11+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-04be2f-2025-07-03T15:46:11+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Norfolk Environmental Credits Limited: past awards and live tenders](https://tendernation.io/buyers/norfolk-environmental-credits-limited) [Sector More Sewage, refuse, cleaning & environmental tenders](https://tendernation.io/sectors/sewage-refuse-cleaning-environmental) ## More tenders like this [Legionella Consultancy Services · South Norfolk Council · 29 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a145df-10ba-7014-b1c1-016db3ffb9a8/legionella-consultancy-services) [CVG Close & Cleaning Contract 2027 - 2029 · Clyde Valley Housing Association Limited · 29 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a14571-33da-7157-81c2-c436f876675c/cvg-close-cleaning-contract-2027-2029) [Scrap Metal, LAB (Lead Acid Batteries) and Abandoned Vehicles Collection, Transportation and Recycling · Leeds City Council · 31 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a14503-5842-73c7-b50c-d3b4f7df419a/scrap-metal-lab-lead-acid-batteries-and-abandoned-vehicles-collection-transp) [Provision of Window Cleaning Services · Nottingham Trent University · 29 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a14503-5864-70da-bf83-bc4caf9b193f/provision-of-window-cleaning-services) [Provision of West Ardnamurchan Refuse & Recycling Collections · Highland Council · 29 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a14495-7b01-724d-9e1e-a712a0c8d8d3/provision-of-west-ardnamurchan-refuse-recycling-collections) [Bishop Auckland College ~ Cleaning Tender · Bishop Auckland College ~ Cleaning Tender · 26 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a14495-82dd-7270-80b1-225a2de20cdb/bishop-auckland-college-cleaning-tender)