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Find out why we are considered the best in the industry—and still don't need to charge for technical support!

StormNET® is the leading software for analyzing and designing urban drainage systems, stormwater sewers, and sanitary sewers. It includes a range of features and capabilities that make it faster, simpler to use, and more accurate. StormNET is used by over 3,000 companies worldwide such as URS, Jacobs, Tetra Tech, HNTB, ARCADIS, and Stantec.

Complete XP-SWMM/XPSWMM Support

StormNET® provides the user unparalleled modeling support for existing XPSWMM™ users and their models. StormNET can import XPSWMM models, as well as export XPSWMM models. Any changes made to the model made in StormNET can be exported back to XPSWMM or analyzed in StormNET. StormNET is based upon an enhanced version of the latest US EPA SWMM 5.0 (and FEMA approved) stormwater and wastewater model.

XP-SWMM/XPSWMM Support

StormNET vs. XPSWMM Performance

Several computational model comparisons were performed with StormNET and XPSWMM using municipal models that had been originally developed with XPSWMM. StormNET was able to import all of the XPSWMM models without modification, including support for external data files (i.e., rainfall files, etc.). The following charts illustrate the performance times for StormNET and XPSWMM.