Stormwater-Management-Model
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USEPA
Dynamic hydrology-hydraulic water quality simulation model
Compiling on OS X using gcc via cmake failed due to errors in output.c Left: fix that works, right: original 
We have seen this on a few PC's - three times on my and PC and also on my Autodesk Colleagues PC's. We are using the Feb 2022 release of...
The table Most Frequent Nonconverging Nodes is a great addition as it helps user identifuy problem simulation areas of the network but it lacks context. If a node does not...
It doesn’t look like the initial snowpack on an LID is properly accounted in the Routing Error calculation. Attached ZIP features a single catchment with an LID and no rainfall,...
Input.c (input_readData) only accepts section words used by the computational engine or the Delphi GUI (COORDINATE, VERTICES, POLYGON, LABEL, SYMBOL, BACKDROP, TAG, PROFILE, and MAP). The program would be more...
A user was using NOAA rainfall and it seems the NOAA rainfall is not consistent. A few negative increments in the last 9 hours cause the rainfall to inflate from...
I’m getting PET values that are about half of what I expect and I think it’s because SWMM5 is using the wrong temperature values. See attached files in “InternationalFallsMN_DailyRainEvap.zip”. The...
An infinitely looping floating point division by zero error results when you open an input file that has zeroed-out map dimensions. Give it a try… [MAP] DIMENSIONS 0 0 0...
When the SWMM engine announced that we will be able to get time series results for a project's nodes and links reported as average values computed over a reporting time...
Very minor stuff: a few constants are applied inconsistently and/or could easily be resolved to higher precision. The gravity adjustment is less than 0.1%; the Manning's N coefficient adjustment is...