An official website of the United States government.

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, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Environmental Modeling Community of Practice

BASINS Tutorials and Training

EPA has developed a series of lectures and exercises on how to use BASINS for water quality modeling and watershed assessment. The lectures follow sequentially. Companion exercises are provided for users to practice different BASINS water quality modeling techniques and applications. The exercises are referenced at various stages throughout the lectures to encourage user participation.

The BASINS Tutorials are accessed individually or by downloading the BASINS 4 dataset(265 pp, 71 MB) . Please read the "readme1st" file for correct placement of the folders in the BASINS directory. The following table lists lectures and exercises along with a link to a PDF file.

Note: BASINS Tutorials were developed for BASINS 4.0 and have not been updated for BASINS 4.5. However, the following tutorials are still compatible with the current version (4.5) of BASINS.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.