1. Ecofutures Ltd, Honley, UK
2. Pennine Water Group, University of Sheffield, Sheffield, UK (corresponding author: )
3. MWH now part of Stantec, Wakefield, UK
4. University of Sheffield, Sheffield, UK
5. MWH, Wakefield, UK
6. Unesco-IHE Institute for Water Education, Delft, Netherlands
7. Yorkshire Water, Bradford, UK
8. Ciria, London, UK
9. Environment Agency, Bristol, UK