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.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • 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

Breadcrumb

  1. Home
  2. Hydrologic Modeling Community of Practice

Wellhead Analytic Element Model (WhAEM)

This model is being distributed, maintained and actively supported by EPA.

The U.S. EPA's Wellhead Analytic Element Model, WhAEM for Windows, is a groundwater geohydrology computer program. WhAEM is a ground-water flow model designed to facilitate capture zone delineation and protection area mapping in support of the Wellhead Protection Programs (WHPP) and Source Water Assessment Planning (SWAP) for public water supplies in the United States. WhAEM provides an interactive computer environment for design of protection areas based on radius methods, well in uniform flow solutions, and geohydrologic modeling methods. Protection areas are designed and overlaid upon US Geological Survey Digital Line Graph (DLG) or other electronic base maps. Base maps for a project can be selected from a graphical index map for the State. Geohydrologic modeling for steady pumping wells, including the influence of hydrological boundaries, such as rivers, recharge, and no-flow contacts, is accomplished using the analytic element method.

Specifications
Current Version: 3.3.2
Release Date: June 2018
Development Status: General Release
Development Information: Release Notes - changes and known deficiencies
Operating System: Windows 7, 8, 10
Development Language: User Interface: Visual Basic 6, Map Objects LT2; Solver: Fortran
Intended Audience: Water supply engineer, Hydrogeologist, Environmental Scientist
Key Words: groundwater hydrology, model, wellhead protection, capture zones
Related Web Sites: Center for Environmental Measurement and Modeling (CEMM)
Text Files (ASCII Format)
File Name File Description
WhAEM Abstract (txt) (1.57 KB) Summary of project.
WhAEM Readme (txt) (7.33 KB) Important installation and usage information.
WhAEM license (rtf) (44.58 KB) EPA open source license for use
Download Files
File Type /
Priority
File Name /
Format /
Size
File Description
Install /
Required
WHAEM 332 Install (exe) (21.43 MB) /
InstallShield Executable /
22 MB.
Setup file for version 3.3.2 of the WhAEM system. Use this for new installs. See README.TXT for important installation instructions.
Document / Recommended Quick Start Guide / Adobe Acrobat / 723KB Quick start guide to installing and trying out WhAEM. (PDF, 11pp., 723KB, about PDF)
Document /
Recommended
User's Manual /
Adobe Acrobat /
12.2 MB
The complete user's manual, Working with WhAEM April 2018, (PDF, 90 pp., 12.2 MB, about PDF).
Data /
Optional
WhAEM Tutorial Data Files (zip) (139.28 MB) /
Self-extracting Zip /
146 MB
Map files required by the tutorial and case study contained within the user's manual.
Data /
Optional
WhAEM Binary Base Maps /
 Zip /
Varies

Binary base map (BBM) files are vectorized graphics derived from USGS DLG files. BBM files can be imported directly into WhAEM software to serve as the geographic basis for groundwater modeling.

Note that the WhAEM Binary Base Maps (BBM)s do not automatically unzip while using Windows Explorer. This is caused by an older zip program that is not 64-bit compatible. Unzip the BBM files manually by right clicking on the file and extracting the files using Winzip or 7-zip. Contact the help desk if you need your section of BBMs recreated as 64-bit compatible zip files.

Mention of trade names or commercial products does not constitute endorsement.

Hydrologic Modeling Community of Practice

  • Modeling Products
  • Groundwater Models
  • Surface Water Models
  • Food Chain Models
  • Multimedia Models
  • Data Provisioning and Modeling Tools
  • Information Sources
    • About This Website
    • Frequent Questions
    • Related Links
    • Distribution and Support Policy
Contact Us About Community of Practice
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 14, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • 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
  • Site Feedback

Follow.