Below you can find the original user rights notice of the PHREEQC software
which is provided by the USGS. I did not make any changes to the source
code of the IPhreeqc library during the compilation of the PhreeqcMathematica
libraries provided with the DataAnalysis package.
--Martin Voigt



                            User Rights Notice

This software and related material (data and (or) documentation),
contained in or furnished in connection with PHREEQC, are made available
by the U.S. Geological Survey (USGS) to be used in the public interest
and in the advancement of science.  You may, without any fee or cost,
use, copy, modify, or distribute this software, and any derivative works
thereof, and its supporting documentation, subject to the following
restrictions and understandings.

If you distribute copies or modifications of the software and related
material, make sure the recipients receive a copy of this notice and
receive or can get a copy of the original distribution.  If the software
and (or) related material are modified and distributed, it must be
made clear that the recipients do not have the original and they must
be informed of the extent of the modifications.  For example, modified
files must include a prominent notice stating the modifications made, the
author of the modifications, and the date the modifications were made.
This restriction is necessary to guard against problems introduced in the
software by others, reflecting negatively on the reputation of the USGS.

The software is public property and you therefore have the right to
the source code, if desired.

You may charge fees for distribution, warranties, and services provided
in connection with the software or derivative works thereof.  The name
USGS can be used in any advertising or publicity to endorse or promote
any products or commercial entity using this software if specific
written permission is obtained from the USGS.

The user agrees to appropriately acknowledge the authors and the USGS
in publications that result from the use of this software or in products
that include this software in whole or in part.

Although this software program has been used by the U.S. Geological
Survey (USGS), no warranty, expressed or implied, is made by the USGS
or the U.S. Government as to the accuracy and functioning of the
program and related program material nor shall the fact of distribution
constitute any such warranty, and no responsibility is assumed by the
USGS in connection therewith. 

The authors, the USGS, and the United States Government are not
obligated to provide the user with any support, consulting, training or
assistance of any kind with regard to the use, operation, and
performance of this software nor to provide the user with any updates,
revisions, new versions, or "bug fixes."

The user assumes all risk for any damages whatsoever resulting from
loss of use, data, or profits arising in connection with the access,
use, quality, or performance of this software.

