1. Research Director, Applied Research Group, Bentley Systems, Incorporated, 27 Siemon Co. Dr., Suite 200W, Watertown, CT 06795 (corresponding author).
2. Former Modeling Manager, United Utilities PLC, Warrington WA5 3LP, U.K.; presently, Managing Director, Witsconsult Limited, 21 Milton Rough, Action Bridge, Northwich, Cheshire CW8 2RF, U.K.
3. Leakage and Demand Strategy Manager, United Utilities PLC, Warrington WA5 3LP, U.K.