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StormNET® is the most advanced, powerful, and comprehensive stormwater and wastewater modeling package available for analyzing and designing urban drainage systems, stormwater sewers, and sanitary sewers. StormNET is the only model that combines complex hydrology, hydraulics, and water quality in a completely graphical, easy-to-use interface. Both imperial and metric (SI) units are supported. Page 2 of 2  Water Quality Modeling Capability Typical Applications Advanced Output Sophisticated GIS Capabilities Sophisticated Data Management Powerful Report Generation Built-in Model Checker

In addition to StormNET’s advanced hydrology and hydraulic modeling capabilities, it can also compute the runoff and routing of pollutants. The following processes can be modeled for any number of user-defined water quality constituents:

• Dry-weather pollutant buildup over different land uses
• Pollutant washoff from specific land uses during storm events
• Direct contribution of rainfall deposition
• Reduction in dry-weather buildup due to street cleaning
• Reduction in washoff load due to BMPs
• Entry of dry weather sanitary flows and user-specified external inflows at any point in the drainage system
• Routing of water quality constituents through the drainage system
• Reduction in constituent concentration through treatment in storage units or by natural processes in pipes and channels.

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StormNET’s base engine has been used in thousands of sewer and stormwater studies throughout the world. Typical applications include:

• Design and sizing of drainage system components for flood control
• Design and sizing of detention facilities for flood control and water quality protection
• Flood plain mapping of natural channel systems
• Designing control strategies for minimizing combined sewer overflows (CSO)
• Evaluating the impact of inflow and infiltration on sanitary sewer overflows (SSO)
• Generating non-point source pollutant loadings for waste load allocation studies
• Evaluating the effectiveness of BMPs for reducing wet weather pollutant loadings.

StormNET provides both kinematic wave and full hydrodynamic wave routing for performing hydraulic analysis. Kinematic wave routing provides a non-linear reservoir formulation for channels and pipes, including translation and attenuation effects that assume the water surface parallel to the invert slope. This method cannot simulate backwater or reverse flow. Dynamic wave routing solves the complete St. Venant equations throughout the drainage network and includes modeling of backwater effects, flow reversal, surcharging, looped connections, pressure flow, tidal outfalls, and interconnected ponds. Flow can also be routed through a variety of different storage elements, such as detention ponds, settling ponds, and lakes.

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StormNET’s graphical capabilities are unparalleled, providing horizontal plan plots, profile plots, and time series plots. All graphical plots can be printed at any user-defined scale. On the horizontal plan plot, StormNET provides automatic color-coding of links and nodes based upon any input or output property, allowing the network to be color-coded based upon pipe sizes, flow rates, velocities, hydraulic grades, water quality concentrations, or any other attribute. Directional flow arrows can be plotted alongside the pipes to show the flow direction for any time step. Furthermore, pipes can be plotted with variable width and nodes with variable radius, allowing the user to quickly identify those areas of the network experiencing the most surcharge, flow, pollutant concentration, etc.

StormNET will automatically generate graphical animations, including the creation of Microsoft AVI files for both horizontal plan plots and profile plots which show values that change with respect to time. Multiple animations can be performed simultaneously, allowing the user to plot several different profiles and watch all the results along that profile line, each in a separate window. Displays of multiple animation views are automatically synchronized. In addition, profile plots can have two separate vertical axes to allow plotting of variables from two different unit families, such as flow, head, or water quality concentration. StormNET features profile plots that can be generated as line, bar, or mixed graphs with complete graph customization. For example, profile plots can be plotted with an envelope to show the minimum and maximum values reached during a simulation.

Compare StormNET to other hydrology software to see how it "stacks up."

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Download a free trial version of StormNET software and support utilities.

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Request a free CD-ROM containing the complete StormNET software, along with tutorials and user documentation.

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Multiple time-series plots can be generated for various network elements, such as pipe flow, velocity, pollutant concentration, and loading. In addition, StormNET allows the user to display and compare multiple result files simultaneously as either horizontal plan plots, profile plots, or time-series plots, allowing direct comparison between different simulation models.

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StormNET can share spatial data and visual representation of the stormwater and wastewater sewer network with any ArcGIS, ArcInfo, ArcView, or MapInfo GIS database, allowing StormNET to be part of the stormwater and wastewater management and planning system. These capabilities can greatly assist in the decision-making processes for network asset inventory, rehabilitation requirements, and financial planning. StormNET can intelligently build a link to any GIS database structure, using attribute mapping and geocoding. For example, a manhole or sewer pipe can be represented as either a node or an arc in the originating GIS database while still being linked with StormNET. Also, StormNET solution results can be posted back to the original GIS database, allowing locations of CSO and SSO points, manhole overflows, pipe surcharging, and floodplain flooding to be quickly identified.

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StormNET uses the Microsoft Access database engine for storing and manipulating network data. This provides unlimited flexibility for defining and modifying the network data. For example, you can perform QBE (Query By Example) and/or SQL (Structured Query Language) queries to select those pipes having a specific diameter, shape, roughness, etc. and then make global changes to this selected data. Database query results can be displayed graphically (by highlighting the selected elements in the horizontal plan view), in tabular format, printed, or copied to other applications using the Windows clipboard. This same query facility can be used for visualization of computational results such as pipe flows, water surface elevations, water quality concentrations, etc.

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Comprehensive, easy-to-read input data and output analysis reports can be automatically generated using the provided drainage report templates, which include a comprehensive table of contents and an index. StormNET’s integrated report generator allows full customization of reports to any level of detail in order to meet reviewing agency requirements. This allows unlimited flexibility and functionality in developing specialized user-defined reports ranging from executive summaries to comprehensive drainage reports. These reports can be fully customized to meet any combination of modeling criteria. For example, users can specify network variables, time periods, or simply add a corporate logo. Furthermore, due to StormNET’s open-architecture Microsoft Access database, nearly any other reporting tool can be used to generate reports.

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