AquaChem
Water Quality Data Analysis and Reporting Software
AquaChem’s analysis tools cover a range of functions and calculations including unit transformations, charge balances, and statistics. These powerful analytical capabilities are complemented by an extensive selection of commonly used geochemical plots to represent the chemical characteristics of water quality data.

What's New in AquaChem 12.0
Geochemical Modeling with PHREEQC:
AquaChem provides integrated cross-functionality with the basic features of PHREEQC, the popular geochemical modelling program developed by the USGS.
- Thermodynamic Databases: Import thermodynamic databases into the project and map database
species to project parameters
- Thermodynamic Databases: Import thermodynamic databases into the project and map database
- Saturation indices/Activities: Calculate the saturation indices and activities for one or more similes and seamlessly reimport the results into the project database, in a few button clicks
- Basic Geochemical Modeling: Prepare basic geochemical models of one or more samples
- Basic simulations include a streamlined graphical interface to include a variety of physicochemical processes occurring simultaneously or in a series of sequential steps, including:
- Mixing
- Changes in Temperature and/or Pressure
- Reversible and Irreversible Reactions, and
- Phase Reactions such as:
- Solution/dissolution with equilibrium phases,
- Sorption/desorption via exchange assemblages,
- Solution/Gas phase assemblages
- Phase Reactions such as:
- Basic simulations include a streamlined graphical interface to include a variety of physicochemical processes occurring simultaneously or in a series of sequential steps, including:
- The resulting PHREEQC input file can be run directly from within the AquaChem interface and results can be imported into the database for further analysis and visualization, including plotting, mapping, and reporting
- The resulting PHREEQC input file can be supplemented with user-generated inputs, for scenarios where advanced users require some additional complexity
- Basic Geochemical Modeling: Prepare basic geochemical models of one or more samples
- Advanced Geochemical Modeling: Quickly and easily migrate samples to the PHREEOCi/PREEDC for Windows interface in a few clicks, when more advanced modelling is required
Map Viewer Module:

- Callouts: add data-rich callout features to some or all the features in a Location Data layer:
- Mini-Tables: add tabulated data for select fields in the location data layer
- Plots: add any supported plot type from the plot collection module
- Callouts: add data-rich callout features to some or all the features in a Location Data layer:
- Surfaces: create surfaces with colour floods and/or contours by interpolating data from a selected field in a location data layer. Supported methods include kriging, inverse distance, and natural neighbours
Previously Released Features:
View the enhancements released in AquaChem 11.0 (Download feature sheet)
For complete version history, see the AquaChem readme file
Why Choose AquaChem?

AquaChem’s analysis tools cover a range of functions and calculations including unit transformations, charge balances, and statistics. These powerful analytical capabilities are complemented by an extensive selection of commonly used geochemical plots to represent the chemical characteristics of water quality data.
- Simple and easy analysis of water quality data
- Effortless and flexible data importing and exporting
- Over 20 essential geochemical plots and graphing techniques including piper, schoeller, scatter, box and whisker, stiff
- Automatic geochemical calculations of water type, sum of anions, sum of cations, ion balance, TDS, hardness and more
- Water quality exceedance reports for multiple water quality standards
- Automatic ready-made reports
- Integrated geochemical modelling with PHREEQC (available from the USGS)

Effortless Data Management & QA/QC
- Easily import data from various file types (.txt, .csv, .xls, .xlsx, .mdb, and .accdb) and file formats (samples as rows, samples as columns, one analyzed value for each row)
- Export stations, analysis data and geochemical plots to multiple formats, including text files, spreadsheets, images, and print-ready Office documents.
- Create simple to complex data queries and easily extract vital information about your water quality data.

Interactive GeoChemical and Statistical Plots
AquaChem allows you to create multiple plots for the same dataset and view these plots simultaneously side-by-side. All plots are interactive – click on a data point and its corresponding sample is highlighted in the sample list. This is useful for identifying outliers.
- Geochemical plots: Piper, Stiff, Durov, Schoeller, Wilcox, Giggenbach, Meteoric Water Line, Ludwig-Langelier, Ternary
- Statistical Plots: Box and Whisker, Histogram, Probability, Quantile, Detection Summary
- General Plots: Scatter, Pie, Stacked Bars, Radial, Time Series