About This Application Manual

This manual has been prepared to serve as one of the practical application guides for GeoSWMM users on how to model two Low Impact Development (LID) control alternatives: Filter Strips (FS) and Infiltration Trenches (IT). It is assumed that the users have already acquired the basics of hydrology, storm water management modeling and EPASWMM. The detention pond modeled in Tutorial 03 is an example of a subdivision-scale drainage control structure.  The LIDs in this tutorial are hydrologic source controls that operate on a smaller scale and rely heavily on infiltration and distributed small-scale storage to reduce the overall runoff volume from a watershed and control water quality.

The next chapter describes the worked-out tutorial with illustration.