About CDM SWMM4
SWMM4 command interface for running EPA SWMM Version 4 in batch mode.
Includes engines: swmm44hh.exe, SWMM4_99.exe, WCH_2004.exe
Plus converters: SWMM4to5_Converter.exe, XPtoEPA4_2005.exe
Based on the original CDM_SWMM VB.NET application
Copyright 2000/2004 by CDM's Hydrology and Hydraulics Discipline.
Includes SWMM4 block documentation templates:
Runoff, Transport, Extran, Rain, Temp, Combine, Statistics, Storage/Treatment
HTML5 recreation — April 2026
Supports up to 25 concurrent SWMM4 model configurations.
Original: Camp, Dresser & McKee • Visual Basic Express 2008
Assembly: cdm_swmm v1.1 • Robert Dickinson
Editor: Editpad.exe / Notepad.exe