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Surface Water Models
The EPA Center for Exposure Assessment Modeling (CEAM) distributes simulation models and database software designed to quantify movement and concentration of contaminants in lakes, streams, estuaries, and marine environments.
Available Products
The following surface water models were developed by the U.S. Environmental Protection Agency in conjunction with other government, academic, and commercial institutions. To find out more about a particular model, click on a hyper-linked model name in the table below. The models listed are available for download and are subject to the CEAM distribution and support policy.
| Product Name | Operating System | Key Words | Maintained By |
|---|---|---|---|
| EFDC | Win 98, NT, 2000, XP | surface water, hydrodynamic, sediment-contaminant, eutrophication, rivers, lakes, reservoirs, wetlands, estuaries, coastal ocean regions, assessment, management, regulatory | CEAM |
| EXAMS | Win 98, NT, 2000, XP | aquatic biology, assessment, biology, chemistry, compliance, environmental effects, metals, NPS related, permits, pesticides, point source(s), rivers, streams, surface water, test/analysis | CEAM |
| EXPRESS | Win 98, NT, 2000, XP | przm, exams, exposure, shell | CEAM |
| GCSOLAR | Win 9x, NT | solar, photolysis, half-life, pollutant, aquatic, ozone | CEAM |
| HSCTM2D | Win 9x, NT | hydrology, sediment, contaminant, transport, finite element model, river, estuary | CEAM |
| HSPF | Win 9x, NT | assessment, biology, compliance, deposition, discharge, environmental effects, estuaries, hydrology, lakes, metals, monitoring, NPS related, NPDES, nutrients, permits, pesticides, point source(s), rivers, sediment, streams, surface water, test/analysis, TMDL related, toxicity | CEAM |
| HSPF Toolkit | Java enabled browser | HSPF, WinHSPF, FTABLE, RCHRES, BMP, assessment, compliance, discharge, environmental effects, hydrology, permits, rivers, sediment, streams, surface water, TMDL related, toxicity | ERD |
| PRZM3 | Win 98, NT, 2000, XP | assessment, discharge, environmental effects, hydrology, land use management, metals, pesticides, surface water, test/analysis | CEAM |
| QUAL2K | Win ME, 2000, XP | aquatic biology, assessment, compliance, discharge, environmental effects, hydrology, NPS related, NPDES, point source(s), surface water, test/analysis, TMDL related | Watershed & Water Quality Modeling Tech Support Center (ERD/EPA Region 4) |
| RUSLE2 | Win 98, NT, 2000, XP | rill, interrill, erosion, sediment, overland flow, climate, soil, topography, land use | USDA Agricultural Research Service |
| SERAFM | MS-Excel 2003 | serafm, exposure, assessment, mecury, hg, surface water, pond, stream, river | CEAM |
| SWMM | Win 98, NT, ME, 2000, XP | aquatic biology, assessment, combined sewer, community, discharge, environmental effects, metals, NPS related, NPDES, point source(s), procedure, rivers, stormwater, streams, surface water, test/analysis, TMDL related | Water Supply & Water Resources Division (NRMRL) |
| Visual Plumes | Win 98, NT, 2000, XP | surface, water, jet, plume, model, quality, contaminant, TMDL | CEAM |
| WASP | Win 95, 98, ME, 2000, XP | aquatic biology, assessment, compliance, discharge, environmental effects, hydrology, metals, NPS related, NPDES, point source(s), surface water, test/analysis, TMDL related | Watershed & Water Quality Modeling Tech Support Center (ERD/EPA Region 4) |
| WHATIF | Win XP(SP2) | watershed, health, fish, habitat, macro-invertebrate, biodiversity, BASS, biomass, biota, aquatic ecosystem, MAHA, CVI, hydraulic, bankfull, flow, restoration, foodweb, mercury, PCB, dioxin | CEAM |