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The EPA Center for Exposure Assessment Modeling (CEAM) distributes simulation models and database software designed to 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 policy.
| Product Name | Operating System | Key Words |
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| CORMIX |
MS-DOS |
aquatic biology, assessment, chemistry, compliance, environmental effects, metals, permits, point source(s), surface water, test/analysis, toxicity |
| EXAMS |
MS-DOS |
aquatic biology, assessment, biology, chemistry, compliance, environmental effects, metals, NPS related, permits, pesticides, point source(s), rivers, streams, surface water, test/analysis |
| GCSOLAR |
MS-DOS |
solar, photolysis, half-life, pollutant, aquatic, ozone |
| HSCTM2D |
MS-DOS |
hydrology, sediment, contaminant, transport, finite element model, river, estuary |
| HSPF |
MS-DOS |
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 |
| OXYREF |
MS-DOS |
fish, oxygen, respiration, ventilation, gases, requirement, data, literature |
| PLUMES |
MS-DOS |
plume, dilution, freshwater, marine, discharge, outfall |
| PRZM3 |
MS-DOS |
assessment, discharge, environmental effects, hydrology, land use management, metals, pesticides, surface water, test/analysis |
| QUAL2EU |
MS-DOS |
stream, lake, water, quality, pollutants, planning, non-point, waste, load |
| SED3D |
VAX VMS |
hydrodynamics, sediment, transport, lakes, estuaries, harbors, coastal waters, three dimensional |
| SMPTOX3 |
MS-DOS |
regulatory, waste, load, toxic, streams, pollutant, TMDL, sediment |
| SWMM |
MS-DOS |
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 |
| TMDL USLE |
Windows |
TMDL, load, USLE, soil, sediment, loss, watershed, spreadsheet |
| Visual Plumes |
Windows |
surface, water, jet, plume, model, quality, contaminant, TMDL |
| WASP |
MS-DOS |
aquatic biology, assessment, compliance, discharge, environmental effects, hydrology, metals, NPS related, NPDES, point source(s), surface water, test/analysis, TMDL related |
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