PHREEQC
U.S. Geological Survey (USGS)
PHREEQC computes what happens chemically when water meets rock, soil or other water: equilibrium between solutes and minerals, dissolution and precipitation, ion exchange, surface complexation and reaction kinetics. It can mix water sources, run titrations, and even model one-dimensional transport through a column.
In engineering it answers questions about seawater intrusion into an aquifer, groundwater quality around a contaminated site, corrosion and scaling in water networks, and industrial effluent treatment. It ships with ready thermodynamic databases and with a graphical interface (PHREEQC Interactive) for Windows.
Ratings & Reviews
| Licence type | Completely Free, Open Source |
|---|---|
| Licence terms | US government software in the public domain, free of charge and with no licence. The source code is open and available. |
| Platforms | Linux, macOS, Windows |
| Engineering field | Geotechnical Engineering, Chemical Engineering, Environmental & Water |
| Tool type | Hydrology & Drainage, Engineering Calculators |
| Vendor site | www.usgs.gov |
This link goes to the vendor site. EngiFree hosts no installers and distributes no cracked versions.
Last verified: 2026-09-07
