- Active Geochemistry Software Inc. - Groundwater chemistry and water geochemistry software for aqueous geochemical data analysis. Product overview, pricing, and on-line ordering. A downloadable demo version is available.
- PHREEQC - US Geological Survey computer program for low-temperature aqueous geochemistry calculations such as speciation, batch-reaction, and one-dimensional transport. Downloadable software, complete on-line user's guide, FAQ, and installation information. Version
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