1. International Institute for Infrastructural, Hydraulic and Environmental Engineering (IHE), PO Box 3015, 2601 DA, Delft, The Netherlands
2. Kiwa N.V. Research and Consultancy, PO Box 1072, 3430 BB Nieuwegein, The Netherlands
3. Waterleiding Maatschappij ‘Noord-West-Brabant’ (WNWB), PO Box 3444, 4800 DK Breda, The Netherlands