Natural England
Use this calculator to work out the nutrient budget for proposed developments in the catchment of Somerset Levels and Moors Ramsar.
The calculator includes all the wastewater treatment work upgrades required under the new Water Industry Act 1991 duty, as announced in May 2024.
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.