Dioptra collected the data and created the GIS base map for all utility infrastructure in the City of Chubbuck. This effort collected RTK GPS quality data with associated attribute tags for all water, sanitary sewer, and storm sewer facilities. All features including lines, hydrants, valves, services, manholes, inlets, and detention facilities were located and coded with appropriate attribute information. This data was assembled into a GIS database that allows city staff to use hand held GPS units to locate all surface and subsurface utilities. Additionally, a field application was developed to allow tracking and updates to the GIS system based on the service records of the city maintenance crews.