HEC-HMS - Hydrologic Modeling System flood hydrology software. Determine peak flow hydrographs for rainfall-runoff events in large river basins or small urban watersheds.
The HSPF Model (Hydrologic Simulation Program Fortran) is a U.S. EPA program for simulation of watershed hydrology and water quality for both conventional and toxic organic pollutants.
MOCDENSE is a variable density ground-water flow and solute-transport model. This version of MOCDENSE simulates the flow in a cross-sectional plane rather than in an areal plane.
MULTIMED (MULTIMEDia Assessment Model) simulates the fate and transport of contaminants leaching from a waste disposal facility into the multimedia (soil and air) environment.
Enhanced Stream Water Quality Model with Uncertainty Analysis is a U.S. EPA model for conventional pollutants in branching streams and well mixed lakes.
RECESS is a group of six computer programs (RECESS, RORA, PART, TRANS, CURV and STREAM) for describing the Recession of Ground-Water Discharge and for Estimating Mean Groundwater Recharge and Discharge from Streamflow Records.