Water Resources Applications Software

WATEQ4F

A program for calculating speciation of major, trace, and redox elements in natural waters

Information

Summary of WATEQ4F

Version history

UNIX or DOS installation instructions (README file)

How to order U.S. Geological Survey printed documentation

How to register to receive software update and enhancement notices

Software

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.

WATEQ4F compiled for...

Data General AViiON (252K)

Sun SPARCstation (Solaris) (173K)

IBM-compatible PC, 386 or higher with math coprocessor (516K)

The above software can also be accessed via anonymous FTP from water.usgs.gov in the /var/ftp/pub/software/geochemical/wateq4f/ directory.

Documentation

How to order U.S. Geological Survey printed documentation

Ball, J.W., and Nordstrom, D.K., 1991, User's manual for WATEQ4F, with revised thermodynamic data base and test cases for calculating speciation of major, trace, and redox elements in natural waters: U.S. Geological Survey Open-File Report 91-183, 189 p. (Revised and reprinted August 1992.)

Nordstrom, D.K., Plummer, L.N., Langmuir, Donald, Busenberg, Eurybiades, May, H.M., Jones, B.F., and Parkhurst, D.L., 1990, Revised chemical equilibrium data for major water-mineral reactions and their limitations, in Melchior, D.C., and Bassett, R.L., eds., Chemical modeling in aqueous systems II: Washington, D.C., American Chemical Society Symposium Series 416, p. 398-413.

Point of contact for WATEQ4F:

U.S. Geological Survey

Hydrologic Analysis Software Support Program

437 National Center

Reston, VA 20192

(electronic mail: h2osoft@usgs.gov)