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AFCEE and its partners have developed numerous free public domain groundwater, vadose zone, and remediation technology-specific models and tools to aid in addressing the environmental challenges facing US Air Force installations. Two widely used software models, BIOSCREEN and BIOCHLOR, were developed for AFCEE through a Broad Agency Announcement (BAA) contract with Groundwater Services Inc. The Bioventing Design Tool® (BVDT®) was developed in partnership with the Air Force Research Laboratory and Battelle.
Many of these models and tools can be obtained by accessing the US EPA Center for Subsurface Modeling Support (CSMoS) which provides provides public domain modeling services and software to public agencies and private companies throughout the nation. Other tools available from AFCEE are listed below.
BIOCHLOR Chlorinated Solvent Plume Database Report - (Jun 00 1.8MB)
This database of chlorinated solvent plume characteristics was compiled for AFCEE Technology Transfer by Groundwater Services Incorporated. The primary objective of the study was to identify key characteristics of parent and daughter chlorinated solvent plumes and to determine important relationships between plume characteristics and hydrogeologic and environmental variables. The results are intended to aid site managers by providing them with general plume length information, which they can use to estimate the likelihood of off-site migration and the potential effectiveness of natural attenuation for plume management.
BIOSCREEN (US EPA)
BIOSCREEN is a screening model which simulates remediation through natural attenuation of dissolved hydrocarbons at petroleum fuel release sites. The software, programmed in the Microsoft Excel spreadsheet environment and based on the Domenico analytical solute transport model, has the ability to simulate advection, dispersion, adsorption, and aerobic decay as well as anaerobic reactions that have been shown to be the dominant biodegradation processes at many petroleum release sites. Includes three different model types: (1) solute transport without decay, (2) solute transport with biodegradation modeled as a first-order decay process (simple, lumped-parameter approach), and (3) solute transport with biodegradation modeled as an instantaneous biodegradation reaction with multiple soluble electron acceptors including dissolved oxygen, nitrate, and sulfate. The model is designed to simulate biodegradation by both aerobic and anaerobic reactions.
Bioslurping Cost Estimating Program (NFESC)
The Bioslurping Cost Estimating (BSCE) Program is available in Microsoft® Excel format from the Navy Facilities Engineering Services Center (NFESC).
Bioventing Design Tool® (BVDT®)
Bioventing is the process of aerating soils to stimulate in situ biological activity and promote bioremediation. Bioventing typically is applied in situ to the vadose zone and is applicable to any chemical that can be aerobically biodegraded, but to date has been implemented primarily at petroleum-contaminated sites. Through the efforts of AFCEE and the U.S. Environmental Protection Agency Bioremediation Field Initiative, bioventing has been implemented at more than 150 sites and has emerged as one of the most cost-effective and efficient technologies currently available for vadose zone remediation of petroleum-contaminated sites. As part of the aforementioned effort, the Principles and Practices of Bioventing (Volume 1 - Principles and Volume 2 - Design) document was prepared for guidance on bioventing activities. These documents should be used in conjunction with the Bioventing Design Tool® (BVDT®) to provide detailed discussions on the theory and application of bioventing. The Boventing Design Tool was developed for the Air Force Research Laboratory by Battelle Memorial Institute. (1.4Mb)
This version of the BVDT® (version 1.0) is the first public release. It contains the BVDT®, the Bioventing Database, the BVDT® Help File, and the User's Guide in Acrobat portable document format (PDF).
Cost Estimating Tool for Enhanced Anaerobic Bioremediation of Chlorinated Solvents
Available for free online, is the Cost Estimating Tool for Enhanced Anaerobic Bioremediation of Chlorinated Solvents. The tool is intended to assist DoD Restoration/Remedial Project Managers (RPMs) in evaluating the cost of implementing enhanced anaerobic bioremediation for chlorinated solvents in groundwater. These costs may be useful for comparing various system configurations, or for comparison to alternative remedial technologies. For example, this information may be useful to the RPM for comparison of remedial alternatives in feasibility studies, corrective measures studies, or engineering evaluation/cost analysis studies. Costs also may be compared between alternative systems for enhanced bioremediation.
CSMoS Ground-Water Modeling Software
Two widely used software models, BIOSCREEN and BIOCHLOR, were developed for AFCEE through a Broad Agency Announcement (BAA) contract with Groundwater Services Inc. The EPA Center for Subsurface Modeling Support (CSMoS) provides public domain ground-water and vadose zone modeling services and software, like BIOSCREEN and BIOCHLOR, to public agencies and private companies throughout the nation. Free technical support for numerous modeling software is also available. Click the CSMoS icon at left to see available modeling software.
Geostatistical Long-Term Monitoring Optimization Algorithm
AFCEE developed a temporal and spatial algorithm for optimizing LTM networks using geostatistical methods. This algorithm, known as GTS, can be used to cost-effectively manage resources for monitoring both passive sampling networks and those that monitor performance or effectiveness of remedial systems. The software, manual and algorithm can be downloaded from the Long-Term Monitoring Programs page. For additional information, contact AFCEE/BCE at (210) 536-5281 or email at afcee.td.awag@us.af.mil.
Hydrogeologic Model Description and Selection
This chart and related abstract have been prepared to facilitate the selection of a code that meets the minimum requirements to simulate a given situation. The factors in the chart include saturated zone, unsaturated zone, site complexity (geology, hydrology, geochemistry), single/multiple fluid, single/multiple phases, and purpose. The chart is designed to be printed as 22" x 34". It may be printed as 11" x 17" but it will not be as easy to read. The chart is available as a Microsoft PowerPoint slide (692 Kb) and the accompanying abstract is a Microsoft Word document (33 Kb).
Monitoring and Remediation Optimization System (MAROS)
Version 2.0 is available for use courtesy of the AFCEE. The software is intended to provide site managers managers with a strategy for formulating appropriate long-term groundwater monitoring programs that can be implemented at lower costs. The MAROS software optimizes a site-specific monitoring program that is currently tracking the occurrence of contaminant migration in groundwater. MAROS is a decision support tool based on statistical methods applied to site-specific data that account 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). Based on this site-specific information the software suggests an optimization plan for the current monitoring system in order to efficiently achieve the termination of the monitoring program. This public domain software was developed for the AFCEE through a Broad Agency Announcement (BAA) contract with Groundwater Services Inc.(GSI), of Houston, Texas, and the University of Houston. The AFCEE MAROS User's Manual, including screen-by-screen description of software use and a comprehensive explanation of MAROS geostatistical methods is available for download.
Simulation/Optimization Modeling System - (SOMOS)
SOMOS is a family of simulation/optimization modules to aid in optimally managing water resources. Resulting from twenty years of optimization model development and their application to real-world problems, this powerful, flexible windows-based software tool provides simulation capabilities and optimization algorithms that are invaluable for the development of mathematical and physical water management strategies.
For simulators, SOMOS employs MODFLOW, MT3DMS, convolution equations, artificial neural network (ANN), analytical equations, and other expressions. Among its 11 extremely powerful optimizers are well known commercially proven linear, quadratic, mixed integer, nonlinear, mixed integer nonlinear programming (LP, QP, MIP, NLP, MINLP, respectively). Some of the optimizers use classical operations research (OR) techniques, such as SIMPLEX, gradient search, and branch and bound. Others are heuristic optimizers such as genetic algorithm (GA), simulated annealing (SA), and tabu search (TS), used alone or together.
The Source Depletion Decision Support System, developed by Groundwater Services, 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. The Decision Support System consists of four modules: a performance database for source depletion (i.e., treated) projects; a performance database for untreated (i.e., natural attenuation) sites; a cost database for source depletion projects; a literature summary of other source depletion projects. The SERDP Decision Support System is compatible with Windows 2000/XP and Microsoft Office 2000/XP/2003.
SourceDK
SourceDK is a computer decision support system for estimating remediation timeframes and assessing the uncertainty associated with those estimates. Developed by Groundwater Services, Inc. for AFCEE and programmed in the Microsoft Excel spreadsheet environment, SourceDK uses three relatively simple approaches to estimate remediation timeframes and the uncertainty in the timeframe estimate.
The model can be used to predict concentrations of dissolved constituents in groundwater over time at a particular well or particular zone at a site. The modeling approach is designed to account for the presence of non-aqueous phase liquids (NAPLs) and other source materials in the saturated zone which control how long organic groundwater plumes will persist in the subsurface. All three approaches include methods to estimate the uncertainty in any remediation timeframe estimate.
SourceDK is a screening- and planning-level tool that can be applied to a variety of different types of source zones in groundwater for estimating groundwater remediation timeframes and the uncertainties associated with the estimated timeframe. While SourceDK is primarily geared for natural attenuation processes, it can also be used to estimate source lifetimes for some flushing-based technologies, primarily groundwater pump-and-treat.
Go to http://www.gsi-net.com/Software/SourceDK.asp to access the SourceDK spreadsheet, the help file, and the User's Manual.
Mass Flux Toolkit
The Mass Flux Toolkit, developed for the DoD 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. The Mass Flux Toolkit will give site personnel the capability to compare different mass flux approaches, calculate mass flux from transect data, and apply mass flux to manage groundwater plumes. With this tool, site personnel will be able to perform mass flux calculations more quickly and cheaply, permitting their inclusion in more evaluations of groundwater plumes. With the mass flux data, the progress of natural attenuation and remediation systems can be demonstrated more vividly and directly to regulators, making the entire remediation process clear, effective, and efficient. The Mass Flux Tool Kit is available for download for free.
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