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WASP 8.5 Released: EPA's Powerful Water Quality Simulation Tool

WASP 8.5 is here! This versatile tool from the EPA simulates water quality like never before. With support for various OS and languages, it's a must-have for environmental professionals.

In this picture we can see water, algae, trees and rocks.
In this picture we can see water, algae, trees and rocks.

WASP 8.5 Released: EPA's Powerful Water Quality Simulation Tool

The Water Quality Simulation Program (WASP) has released version 8.5 on August 5, 2025. This versatile tool, maintained by the U.S. Environmental Protection Agency (EPA), caters to various operating systems and programming languages.

WASP, developed by the Italian Institute of Technology's Parrinello group, is a comprehensive model covering water and sediment transport, eutrophication, and more. It requires the Water Resources Database from www.wrdb.com for plotting and data management.

The latest release, version 8.5, follows earlier versions 8.32 and 8.4. WASP supports both C++ and Fortran languages, ensuring flexibility for users. It is compatible with 64-bit Windows 7 or higher, Mac OSX, and Linux Ubuntu.

The developers provide installers for Windows, Mac, and Linux, along with detailed documentation and video tutorials. Example files for linking LSPC to WASP are also available for optional use. The model is a general release with changes and known deficiencies documented in release notes.

WASP's latest version 8.5, released on August 5, 2025, offers extensive water quality simulation capabilities. With support for multiple operating systems and programming languages, it caters to a wide range of users. The EPA distributes, maintains, and supports this valuable tool, ensuring its accessibility and reliability.

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