1. Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
2. NSF Engineering Research Center for Reinventing the Nation′s Urban Water Infrastructure (ReNUWIt), Colorado School of Mines, Golden, Colorado 80401, United States
3. Department of Civil and Environmental Engineering, University of California-Berkeley, Berkeley, California 94720, United States
4. Hydrologic Science andEngineering Program, Colorado School of Mines, Golden, Colorado 80401, United States