Free Software (Freeware)
MAROS is a decision support tool based on statistical methods applied to site-specific data that accounts for relevant current and historical site data as well as hydrogeologic factors (e.g. seepage velocity) and the location of potential receptors (e.g., wells, discharge points, or property boundaries).
BIOCHLOR is a screening model that simulates remediation by natural attenuation of dissolved solvents at chlorinated solvent release sites. BIOCHLOR can be used to simulate solute transport without decay and solute transport with biodegredation modeled as a sequential first-order process within one or two different reaction zones.
BIOBALANCE Tool Kit
The mass balance paradigm is an important new approach to evaluating Monitored Natural Attenuation (MNA) at chlorinated solvent sites.
BIOSCREEN is a screening model which simulates remediation through natural attenuation of dissolved hydrocarbons at petroleum fuel release sites.
Groundwater Sensitivity Toolkit
The Groundwater Sensitivity Toolkit was developed by GSI for the American Petroleum Institute and the California MTBE Research Partnership.
GSI Mann-Kendall Toolkit
The GSI Mann-Kendall Toolkit is a free, simple, easy-to-use software tool to help environmental professionals efficiently conduct concentration trend analyses for any groundwater constituent.
MAROS provides site managers with a strategy for formulating appropriate long-term groundwater monitoring programs that can be implemented at lower costs.
Mass Flux Toolkit
The Mass Flux Tool Kit, developed for the Department of Defense ESTCP program, is an easy-to-use, Microsoft® Excel based software tool that enables users to learn about different mass flux approaches, calculate mass flux from transect data, and apply mass flux values to manage groundwater plumes.
Matrix Diffusion Toolkit
The Matrix Diffusion Toolkit can assist site personnel to effectively and efficiently estimate what effects matrix diffusion will have at their site, and transfer the results to stakeholders.
MODFLOW-USG is an unstructured grid version of MODFLOW and was created to provide flexibility in gridding for MODFLOW solutions.
Guidance and Software for interpretation of Compound-Specific Isotope Analysis Data with Reactive Transport Modeling for Improved Monitored Natural Attenuation of Chlorinated Solvent Plumes
SERDP: Source Depletion Decision Support System
The Source Depletion Decision Support System, developed by GSI Environmental Inc., with funding provided by the Department of Defense Strategic Environmental Research and Development Program (SERDP), is a software tool designed to aid the decision-making process for remediation of dense non-aqueous phase liquid (DNAPL) source zones.
SourceDK is a computer decision support system for estimating remediation timeframes and assessing the uncertainty associated with those estimates.
Source History Tool
The Source History Tool, developed for the Department of Defense’s ESTCP program, is an easy-to-use, comprehensive, free software tool that can assist site personnel reconstruct long-term contaminant source histories that extend back to the beginning of the original source release.