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  2. Hydrologic Modeling Community of Practice

WASP8 Download

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

On this page:

  • Specifications
  • Documentation/Tutorial
  • Download Files

WASP Model Menu
  • WASP Model Home
  • WASP8 Download
  • WASP FAQ
  • WASP Documentation
  • WASP Tutorials
  • WASP Example Files
  • WASP Release Notes

Specifications

Operating SystemVersionRelease Date
64-bit Windows 7 or higher, early versions of windows8.5Aug. 5, 2025
8.32Apr. 2, 2019
Mac OSX8.4Mar. 30, 2022
8.32Apr. 2, 2019
Linux Ubuntu8.32Apr. 2, 2019
Development TypeDescription
StatusGeneral Release
InformationRelease Notes: changes and known deficiencies
LanguageC++ and Fortran

Documentation / Tutorial

TypeDescription
WASP Model DocumentationWater transport, sediment transport, eutrophication, macro algae and periphyton, sediment diagenesis, water temperature, pH and alkalinity, light.
Video TutorialView the Online Tutorials that match the Example Files.

Download Files

All of the WASP Installers are listed below. There is a 64 Bit Windows Installer, 64 Bit Mac OS X (Yosemite or Higher), 64 Bit Linux (Built on Ubuntu). You will need to have knowledge on how to install software on your target operating system.

Installer Type /
Priority
File Type / File NameFile Description
Windows 64bit Installer
/ Required

Executable File

WASP 8.32 Installer Windows (exe)

WASP 8.5 Installer Windows (zip)

Windows 64 Bit Installer

The Windows installation does not need administrative privileges, you will need read/write access to the directory where you want to install the program. Click on the button below to start the download of the 64-Bit Version of WASP.
 
Versions: 8.32 and 8.5
Mac OSX Installer Bundle
/ Required

Executable File

WASP 8.32 Installer Mac OSX (dmg)

WASP 8.4 Installer Mac OSX (dmg)

MAC OSX Installer Bundle (Yosemite or Higher)

The Mac version is a dmg file that once it is double clicked will mount as a drive exposing the WASP Bundle. You can drag and drop the bundle anywhere on your system, The typical location is in the Application Folder.
 
Versions: 8.32 and 8.4
Linux Installation / RequiredExecutable File

WASP 8.32 Installer Linux (zip)
 

Linux Installation File (built on Ubuntu)

The Linux version is an installation package, user will double click on the file to extract and install. Because WASP uses many shared libraries your path will need to be updated.
 
Versions: 8.32
 
export LD_LIBRARY_PATH=$HOME/workspace/WASP8:$LD_LIBRARY_PATH
Installation /
Required
www.wrdb.comYou will need to download the Water Resources Database from www.wrdb.com, this package can be used for preparing data for WASP as well as observed date for calibration. WASP relies on the WRDB Graph program to plot model results. 
Examples / OptionalTutorial Example FilesFiles for linking LSPC to WASP, including the LSPC input files, Water Resource Database LSPC_2_WASP spreadsheet program to create linkage files, and WASP input files.

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Last updated on October 2, 2025
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