Hydrocarbon Spill Screening Model (HSSM) - Windows Version
The Hydrocarbon Spill Screening Model (HSSM) simulates flow of the light nonaqueous-phase liquid (LNAPL) and transport of a chemical constituent of the LNAPL from the surface to the water table; radial spreading of the LNAPL at the water table, and dissolution and aquifer transport of the chemical constituent.
The HSSM model is one-dimensional in the vadose zone, radial in the capillary fringe, two-dimensional vertically averaged analytical solution of the advection-dispersion equation in the saturated zone.
The model is based on the KOPT, OILENS and TSGPLUME models.
|Release Date||September 1997|
|Development Status||General Release|
US EPA. (1995) "The Hydrocarbon Spill Screening Model (HSSM), Volume 1: User’s Guide." Publication No. EPA/600/R-94/039a.
US EPA. (1995) "The Hydrocarbon Spill Screening Model (HSSM), Volume 2: Theoretical Background and Source Codes." Publication No. EPA/600/R-94/039b.