Guidance and tools to calculate nutrient budget for developments within Special Areas for Conservation (SAC’s) river catchments.
Documents
Nutrient budget calculator: guidance , file type: PDF, file size: 1 MB
Nutrient budget calculator , file type: XLSX, file size: 9 MB
Details
The Nutrient Budget Calculator for Wales is used to calculate phosphorus and nitrogen mitigation requirements for development within the catchment for rivers that are SAC’s.
There are nine SAC rivers in Wales. Nutrient neutrality needs to be calculated in seven of these river catchments which fail nutrient water quality targets.
Nutrient neutrality is required in these catchments:
- River Gwyrfai and Llyn Cwellyn
- River Teifi
- River Tywi
- River Cleddau
- River Dee & Bala Lake
- River Usk
- River Wye
Nutrient neutrality is not required in the following catchments, but the calculator exists for these should developers want to demonstrate nutrient outputs for their development:
- River Eden – Cors Goch Trawsfynydd
- Meirionnydd Oakwoods and Bat Sites (the Afon Glaslyn)
You can find further guidance on completing the calculator in this instructional video.
For any queries or issues with the calculator please email: decisionsbranch@gov.wales