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Groundwater Models

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 distribution and support policy.

Product Name Operating System Key Words Supported by ORD?
3DFEMWATER/3DLEWASTE N/A assessment, discharge, drinking water, environmental effects, groundwater, hydrology, metals, monitoring, pesticides, prevention, test/analysis No
GFLOW Windows XP,7,8,10 groundwater hydrology, model, wellhead protection, capture zones, sea water intrusion, conjunctive groundwater-surface water, MODFLOW, extract Yes
PRZM Win 98, NT, 2000, XP assessment, discharge, environmental effects, hydrology, land use management, metals, pesticides, surface water, test/analysis No
WhAEM Windows 7,  8, 10 groundwater hydrology, model, wellhead protection, capture zones Yes

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Last updated on April 16, 2025
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