Here's a list of Environmental/Hydrologic/Hydraulic/Water Quality/Water Resources computer models compiled and archived in the Civil & Environmental Engineering Department, Old Dominion University. All models are public domain, and has been compiled from various sources such as USEPA, USACE WES, USDA-ARS, etc. Most of programs are designed for DOS/Windows platform, and there're also several programs written and compiled for Unix platform. Please check the individual model for its system requirement and model assumption/limitation as well as source code availability before downloading. Once downloaded, please follow installation guide comes with the package. Most packages are in self-extractable form (i.e., *.exe) or compressed using the standard methods such as 'zip' (i.e., *.zip) or Unix 'tar'ed and 'gunzip'ed (i.e., *.tar.gz). If you do not have a de/compression utility readily installed in your computer, please download appropriate one from below. For 'tar'ed and 'gunzip'ed Unix files, please use $ gzip -dc [file.tar.gz] | tar xvf - to uncompress & restore original directories/files. If you do not have GNU 'gunzip' installed in your system, please download following GNU gzip program first, then uncompress the 'gunzip'ed and 'tar'ed model files. Programs Download Winzip for Windows 2000/NT/XP/ME/98 Winzip for MS-DOS GNU gzip 1.2.4 (tar file)   Instruction for copying computer models bigger than 1.44 MB to multiple floppy disks Important Data Sources USGS daily value streamflow data NOAA NWS (National Weather Service) NOAA NCDC (National Climatic Data Center) climate data NOAA weekly and monthly degree day data summaries USEPA Reach files from national hydrologic databases USEPA STORET (STOrage and RETrieval System for Water and Biological Monitoring Data) Radford University GIS Center -- Spatial data (DOQQ, SPDB, DEM, DRG) for Virginia Data) Maintained by Jaewan Yoon If you have a question or suggestion, please use CEML feedback form. TIA.   USEPA (Environmental Protection Agency) Water Quality Models Center for Exposure Assessment Modeling (CEAM) Center for Subsurface Modeling Support (CSMoS) MS-DOS Program Source Codes Available Unix Program Windows Program Required Model for CEE 450/550 Water Distribution & Waste Water Collection System Design course Recommended Model for your Water Quality Modeling Project in CEE 756/856 course CORMIX Cornell Mixing Zone Expert System v3.20   EPANET Simulation of Hydraulic and Water Quality Behavior Within Pressurized Pipe Networks v2.00.10 EXAMS Exposure Analysis Modeling System v2.96   EXAMS Exposure Analysis Modeling System v2.98.03   FEMWATER 3-D Finite Element Model of Water Flow Through Saturated-Unsaturated Media v1.00 FGETS Food and Gill Exchange of Toxic Substances simulation model v3.0.18   HSCTM2D Hydrodynamic, Sediment, and Contaminant Transport Model (2-D, vertically-integrated, surface water flow Finite Element Method) v1.01 HSPF Hydrological Simulation Program - FORTRAN v11.0 HSPF Hydrological Simulation Program - FORTRAN v11.0 LC50 Lethal Concentration, 50% (Trimmed Spearman-Karber Method) v1.00   MINTEQ Geochemical Equilibrium Speciation Model for Dilute Aqueous Systems v3.11 MINTEQA2 Metal Speciation Equilibrium Model for Surface and Ground Water v3.12b OXYREF Oxygen Requirements of Fishes Database v1.00   P-ROUTE Pollutant Routing Model (Screening-level PS/NPS pollution on a reach by reach flow basis, using 7Q10 or mean flow) v3.11 PATRIOT Pesticide Assessment Tool for Rating Investigations of Transport v1.20   PLUMES Initial Dilution Plume Models v3.00 VPLUME Visual Initial Dilution Plume Models v1.00 PRZM3 Pesticide Root Zone Model - 3 v3.12 PRZM2 Pesticide Root Zone Model - Release 2 Version 2.01 Beta 2.01B   QUAL2EU Enhanced Stream Water Quality Model with Uncertainty Analysis v3.22 QUAL2K Stream Water Quality Model (Modernized version of QUAL2EU) v1.00 SMPTOX3 Simplified Method - Variable Complexity Stream Toxics Model v2.01 SWMM Storm Water Management Model v5.0.002 SWRRBWQ Simulator for Water Resources in Rural Basins Water Quality   WASP 5 & 6 Water Quality Analysis Simulation Program v6.2 WASP7 Water Quality Analysis Simulation Program v7.0 WTP The Water Treatment Plant Model v2.078     USEPA (Environmental Protection Agency) Air Quality Models EPA Website for additional Air Quality Models MS-DOS Program Source Codes Available Unix Program Windows Program Recommended Model for your Water Quality Modeling Project in CEE 756/856 course ISCLT3 EPA ISCLT3 (Industrial Source Complex - Long Term) Dispersion Air Quality model   ISCST3 EPA ISCST3 (Industrial Source Complex - Short Term) Dispersion Air Quality model   CDM EPA CDM 2.0 (climatological dispersion model - version 2.0) v2.00   PCRAMMET EPA PCRAMMET meteorological preprocessor program used for preparing National Weather Service (NWS) data for use in EPA's short term air quality dispersion models such as ISCST3, CRSTER, RAM, MPTER, BLP, SHORTZ, and COMPLEX1     USACE WES (US Army Corps of Engineers Waterways Experiment Station) Models MS-DOS Program Source Codes Available Unix Program Windows Program Recommended Model for your Water Quality Modeling Project in CEE 756/856 course BATHTUB FLUX Empirical Eutrophication, Loadings, Mass Discharges for Lake and Reservoir v4.0 CE-QUAL-R1 A Numerical One-Dimensional Model of Reservoir Water Quality   CE-QUAL-W2 A Numerical 2-D Water Quality and Hydrodynamic Model for Rivers, Estuaries, Lakes, Reservoirs and River basin systems   CE-THERM-R1 A Numerical One-Dimensional Thermal Stratification Model of Reservoir and Lake   ODU_THERM ODU Sun Solaris 2.5 port of CE-THERM-R1 - Release 96R3 96R3   USDA-ARS (US Department of Agriculture Agricultural Research Services) Models MS-DOS Program Source Codes Available Unix Program Windows Program Recommended Model for your Water Quality Modeling Project in CEE 756/856 course AGNPS Agricultural Nonpoint Source Pollution Model v5.00 AGNPS Sun Solaris 2.51 port of Agricultural Nonpoint Source Pollution Model v5.00