River Eden SAC: nutrient neutrality calculator
Calculate nutrient budgets for developments in the catchment of River Eden SAC.
Applies to England
Documents
Details
Use this calculator to work out the nutrient budget for proposed developments in the catchment of River Eden SAC.
The calculator reflects:
- all the wastewater treatment work upgrades required under the new Water Industry Act 1991 duty, as announced in May 2024
- improvements that will be made to wastewater treatment works between 2025 and 2030 under the Water Industry National Environment Programme (WINEP), published in January 2025
- earlier completion dates for selected wastewater treatment work permit upgrades within the River Eden catchment
- catchment boundary changes following review of WINEP upgrades – wastewater treatment works discharging outside the revised nutrient neutrality catchment have been set to zero
Instructions are given in the calculator, but you should also read the guidance document.
Find the guidance and all 27 calculators in the nutrient neutrality resources collection.
Updates to this page
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Calculator updated to reflect catchment boundary changes following review of WINEP upgrades. Wastewater treatment works discharging outside of the revised nutrient neutrality catchment have been set to zero.
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Updated the calculator to show missing values.
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Updated the calculator to resolve minor bug issues.
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Updated the calculator with a version that reflects improvements that will be made to wastewater treatment works between 2025 and 2030. This is under the Water Industry National Environment Programme (WINEP) as published in January 2025. The calculator also reflects earlier completion dates for select wastewater treatment work permit upgrades within the River Eden catchment.
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Updated the calculator with a version that reflects the list of wastewater treatment works that are under a duty to meet specified nutrient removal levels.
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First published.