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USGS Water Resources Applications Software: OTEQ

OTEQ Download Page

Installation files for OTEQ may be downloaded from this page.

Please consult the documentation and FAQ for additional information on software distribution and installation.

Follow these steps to download the OTEQ installation files:

Step 1:  Enter your email address

Email Address:  

Note: Entry of your email address is optional. If you enter your email address we can contact you regarding new software releases and bug fixes. Your email address will not be shared with third parties.

Step 2:  Specify your operating system/hardware platform

Operating System/Hardware Platform:  


  1. If your operating system/hardware platform is "Other", you will not be able to download the executable installation file in Step 3. See the OTEQ documentation and FAQ for information on compiling the software.
  2. A pre-complied Windows version of the OTEQ software is unavailable at this time.

Step 3:  Select the installation files you wish to download

Check the applicable boxes:

Download executable (not applicable if you specified "Other" in Step 2)
Download example applications, database files, and documentation
Download source code


  1. Most users will want to download installation files for the OTEQ executable and the example applications. Pre-compiled executables are available for Linux (on Intel PCs) and Solaris (on Unix Workstations); the source code installation file is therefore not needed for these operating systems.
  2. If you specified "Other" in Step 2, you will not be able to download the executable installation file. You may therefore want to download the source code installation file for compilation purposes (see the OTEQ documentation and FAQ).

Step 4:  Download the installation files

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Page Last Modified: Friday, 09-Dec-2016 17:43:50 EST