Interfacing Water Distribution Modeling with GIS
Author: David Krenek
30 South Nevada Avenue
The Colorado Springs Utilities Water Resources Department is a City-owned water and wastewater utility, serving a population of approximately 430,000. This paper presents an approach to interfacing a GIS database with a modeling program for complete water distribution analysis. The GIS provides data automatically to a modeling program, which then executes and returns output data back to the GIS for display and further analysis. The interface also utilizes tank levels and pump station operations from a SCADA system. The entire process is run by the user within the ArcInfo AML environment. This allows the program to be customized to give the user the option of choosing which mains are to be included in the model and provides for a user-friendly setup with which personnel are already familiar. Since the GIS database is kept current daily, data for the hydraulic model will always be current.