PHREEQC Authors of the code: David L. Parkhurst and C.A.J. Appelo Homepage: The project homepage contains the sources, binaries (Windows, Linux, Mac OS X), documentation and lots of other useful stuff. https://wwwbrr.cr.usgs.gov/projects/GWC_coupled/phreeqc/ Source: Source code is available in the project homepage. https://wwwbrr.cr.usgs.gov/projects/GWC_coupled/phreeqc/ Reference: Parkhurst, D.L., and Appelo, C.A.J., 2013, Description of input and examples for PHREEQC version 3—A computer