InfoSWMM and H20Map SWMM and their Relationship to FEMA Approved SWMM 5 Engines
The purpose of this note is to show how InfoSWMM is related to various SWMM 5 engines. InfoSWMM is a ESRI Arc Map Interface to the properties of the SWMM 5 engine using model development tools created by Innovyze for InfoWater and InfoSewer. It uses a recompiled SWMM 5 engine for the purposes of integration with Arc GIS but the underlying engine code is the EPA SWWM 5 code. InfoSWMM has very good import and export tools for reading and writing SWMM 5 files. InfoSWMM does not have to be on the official FEMA list as it uses and exports the FEMA approved current SWMM 5 engine. SWMM 5 has been approved by FEMA since 2005. Figure 1 shows the versions of SWMM that have been approved by FEMA. It is approval that continues each time a new EPA SWMM 5 is released. Innovyze InfoSWMM and H2OMap SWMM use a recompiled SWMM 5 engine based on the current version of EPA SWMM (Figure 2). The match between the EPA Engine and InfoSWMM is shown in Figure 2. EPA SWMM 5.x was produced by the Water...