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Exposure Assessment Models


The EPA Center for Exposure Assessment Modeling (CEAM) distributes simulation models and database software designed to quantify the movement and concentration of subsurface contaminants.

Available Products

The following groundwater 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
3DFEMWATER/3DLEWASTE N/A assessment, discharge, drinking water, environmental effects, groundwater, hydrology, metals, monitoring, pesticides, prevention, test/analysis CEAM
PRZM Win 98, NT, 2000, XP assessment, discharge, environmental effects, hydrology, land use management, metals, pesticides, surface water, test/analysis CEAM
WhAEM2000 Win 98, NT, 2000, XP, Win 7, Win 8 assessment, discharge, environmental effects, groundwater, hydrology, model, process, risk, test/analysis, waste management CEAM