The Regional Watershed Modeling System (RWMS) Web Portal is an interface to the Enterprise Geographic Information System that stores hydrologic and hydraulic modeling data and provides the linkage mechanism between hydraulic modeling and hydrologic model through features, objects, relationships and topology in the GIS. The RWMS Web portal is for users that need to access the RWMS system through a web browser - water resources engineering consultants in particular, who need to obtain, view and submit hydrologic and hydraulic modeling information to and from the City of San Antonio, Bexar County and San Antonio River Authority.