Built atop ArcGIS, InfoSWMM seamlessly integrates asset and business planning with highly advanced dynamic flow analysis and optimization functionality for the effective management of urban stormwater and wastewater collection systems. Using exceptionally fast, robust and efficient hydraulic simulation capabilities, InfoSWMM can be used to model the entire land phase of the hydrologic cycle. It can perform single event or long-term (continuous) rainfall-runoff simulations that account for climate, soil, land use, and topographic conditions of the watershed. In addition to simulating runoff quantity, InfoSWMM can accurately predict runoff quality - including buildup and washoff of pollutants from primarily urban watersheds. The model also offers very sophisticated Real-Time Control (RTC) schemes for the operational management of wastewater systems and hydraulic structures. The unparalleled performance modeling of InfoSWMM sets new benchmarks in scalability, reliability, functionality and flexibility within the powerful ArcGIS environment.

Unrivalled GIS Integration Capabilities

• Build/Run Network Model in ArcGIS
• Provide Native ArcGIS Model-Building Tools
• Construct/Update Models Directly from Geodatabase and Geometric Network or Any External Data Source
• Allow Complete or Filtered Data Exchange on Geometric and/or Non-Geometric Data with Geodatabase or RDBMS
• Create/Edit Multiple Scenarios in the Same Geodatabase
• View fully Animated Extended Period Simulation (Dynamic) Results Sequentially Using VCR-Style Controls Directly in ArcGIS
• Generate Contours, Graphs and Tables of Modeling Results Directly in ArcGIS
• Combine Input and Output Attribute Tables
• Use Relational Database and Geodatabase to Store Model Data
• Fully Automate GIS Data Exchange with ESRI Data Sources
• Pick any GIS Attributes Automatically Without Mapping any Fields
• Automatically Publish Simulation Results to Enterprise Geodatabase and/or RDBMS
• Fully Compatible with Intergraph GeoMedia and GeoMedia Professional
• Automatically import and export any SWMM5 project

Unequaled Geospatial Hydrologic Modeling Features

InfoSWMM accounts for various hydrological processes that produce runoff from urban areas. These include:

• time-varying rainfall
• evaporation of standing surface water
• snow accumulation and melting
• rainfall interception in depression storage
• infiltration of rainfall into upper soil layers
• percolation of infiltrated water into groundwater layers
• interflow between groundwater and the conveyance system
• nonlinear reservoir routing of overland flow

Spatial variability in all of these processes is achieved by dividing a study area into a collection of smaller, homogeneous subcatchment areas, each containing its own fraction of pervious and impervious sub-areas. Overland flow can be routed between sub-areas, between subcatchments or between entry points of a drainage conveyance system.

Unmatched Geospatial Hydraulic Modeling Features

InfioSWMM contains a flexible set of hydraulic modeling capabilities used to route runoff and external inflows through a network of pipes, channels, storage/treatment units and diversion structures. These include the ability to:

• handle networks of unlimited size
• use a wide variety of standard closed and open conduit shapes as well as natural channels
• model special elements such as storage/treatment units, flow dividers, pumps, weirs, and orifices
• apply external flows and water quality inputs from surface runoff, groundwater interflow, infiltration/inflow, dry weather sanitary flow, and user-defined inflows
• choose between uniform flow, kinematic wave, or full dynamic wave flow routing methods
• model various flow regimes, such as backwater, surcharging, reverse flow, and ponding
• apply dynamic control to pump status, orifice opening and weir level via user-defined control rules

Unparalleled Geospatial Water Quality Modeling Features

In addition to modeling the generation and transport of runoff flows, InoSWMM can also estimate the production and fate of pollutant loads associated with this runoff. 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 each land use 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 conveyance system
• routing of water quality constituents through the pipe/channel network
• reduction in constituent concentration through treatment at junction nodes or in storage units.

InfoSWMM is ideally suited for many types of sewer system analysis, including:

• Modeling rainfall-runoff of urban and rural watersheds
• Designing and sizing drainage system components for flood control
• Sizing detention facilities and their appurtenances for flood control and water quality protection
• Flood plain mapping of natural channel systems
• Master planning sewer collection systems and urban watersheds
• System evaluations associated with USEPA regulations, including NDPES permits, CMOM, and TMDL
• Designing control strategies to minimize combined sewer overflows
• Assessing the impact of inflow and infiltration on sanitary sewer overflows
• Generating non-point source pollutant loadings for waste load allocation studies
• Evaluating the effectiveness of BMPs for reducing wet weather pollutant loadings
• Analyzing river hydraulics and associated flooding problems

InfoSWMM incorporates all the powerful modeling functionality from the USEPA's industry-standard Stormwater Management Model (SWMM5) and adds advanced geospatial capabilities for taking full advantage of existing GIS data and quickly maximizing the return on investment. Scores of new enhancements have been added to answer the demands and needs of MWH Soft's existing worldwide customer base, which is quickly becoming reliant on GIS technology to perform its day-to-day job-related activities.

Support of the powerful ArcGIS platform as well as SWMM5 makes this a milestone release for effective GIS-centric planning, design, rehabilitation, and expansion of sanitary, storm and combined sewer collection systems. InfoSWMM also offers powerful graphics and reporting tools that make its sophisticated modeling applications fast and easy, regardless of the users' technical expertise - extending its benefits across the entire enterprise.

Features of InfoSWMM's User Friendly Interface (Click to enlarge the picture)