Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Emergency

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2025. This website is no longer updated and links to external websites and some internal pages may not work. More information »

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Climate Change
    • Emergency Response
    • Environmental Information by Location
    • Environmental Justice
    • Greener Living
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History
    • Staff Directory

Breadcrumb

  1. Home
  2. Hydrologic Modelling Community of Practice

Groundwater Models to Assess Exposures

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 Supported by CEAM?
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

Hydrologic Modelling Community of Practice

  • Modeling Products
  • Groundwater Models
  • Surface Water Models
  • Food Chain Models
  • Multimedia Models
  • Data Provisioning and Modeling Tools
  • Information Sources
    • -About CEAM
    • -CEAM Discussion
    • -Frequent Questions
    • -Related Links
    • -Distribution and Support Policy
Contact Us about Environmental Modeling Community of Practice
Contact Us about Environmental Modeling Community of Practice to ask a question, provide feedback, or report a problem.
Last updated on March 27, 2024
  • Assistance
  • Ayuda
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • Aide
  • Asistans
  • Korean
  • Assistência
  • Russian
  • Tulong
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions

Follow.