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Water Resources of the United States


Hydrological Simulation Program--Fortran



Selection of the following options preceded by a binary icon retrieves a compressed UNIX tar file or a self-extracting DOS executable. A README file containing installation instructions is included with each of the software distribution files. There are separate README files for the UNIX and DOS distributions.

The Free Software Foundation's gunzip is necessary to uncompress the UNIX tar files available below. However, some World Wide Web browsers automatically uncompress retrieved files. Thus, running gunzip as stated in the installation instructions may be unnecessary.

HSPF compiled for...

HSPF source code for compilation under...


Paper copies of the HSPF report can be ordered from:

National Technical Information Service (NTIS)
5285 Port Royal Road
Springfield, VA 22161
(electronic mail:

Tel: 1-800-553-NTIS (1-800-553-6847) or 703-605-6000
Fax: 703-605-6900

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