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Fractured Rock Geophysical Toolbox Method Selection Tool (FRGT-MST)


 [ Photo: Scientists lower geophysical tool into well ]

The Fractured Rock Geophysical Toolbox Method Selection Tool (FRGT-MST) is an Excel-based tool for identification of geophysical methods most likely to be appropriate for project goals and site conditions.

We envision the FRGT-MST:

  1. equipping remediation professionals with a tool to understand what is likely to be realistic and cost effective when contracting geophysical services, and
  2. reducing applications of geophysics with unrealistic objectives or where methods are likely to fail.

The 'toolbox' comprises 30 surface, cross-hole, and borehole geophysical methods. Additionally, hydrologic tests appropriate to fractured rock are included. The user enters information in two tables for site parameters and project goals. Based on user entry, a third table is populated with indicators for which methods support specified goals and are feasible at the site. Worksheet appendices provide detailed information on various methods.

(Video download and transcript are also available)

Release History

The current version of FRGT-MST is v.1.0 (January 06, 2016). This is the initial release.

Information and Downloads

Suggested Citation for FRGT-MST

Day-Lewis, F.D., Johnson, C.D., Slater, L.D., Robinson, J.L., Williams, J.H., Boyden, C.L., Werkema, D., and Lane, J.W., 2016, A Fractured Rock Geophysical Toolbox Method Selection Tool: Groundwater. doi:10.1111/gwat.12397

Software/Code Citation for FRGT-MST v1.0

What is this? The software or code citation is specifically for the software itself. This is different from the traditional citation for the article or report that documents the code.

Day-Lewis, F.D., Johnson, C.D., Slater, L.D., Robinson, J.L., Williams, J.H., Boyden, C.L., Werkema, D., and Lane, J.W. Jr., 2015, The Fractured Rock Geophysical Toolbox Method Selection Tool (FRGT-MST) v1.0: U.S. Geological Survey Software Release, 06 January 2016,

Point of Contact

Support is provided for correcting bugs and clarification of how FRGT-MST is intended to work. Only limited assistance can be provided for applying FRGT-MST to specific problems by contacting the point of contact listed below:

Fred Day-Lewis
Hydrogeophysics Branch
Earth System Processes Division
Water Mission Area, U.S. Geological Survey
11 Sherman Place, Unit 5015
University of Connecticut
Storrs Mansfield, CT 06269
(860)487-7402 x21

Other USGS Groundwater Software

The USGS develops groundwater, water-quality, surface-water, and other water-resources software for use by the USGS in fulfilling its mission. Most of this software is available online for download at no charge.

Disclaimers and Notices

This software has been approved for release by the U.S. Geological Survey (USGS). Although the software has been subjected to rigorous review, the USGS reserves the right to update the software as needed pursuant to further analysis and review. No warranty, expressed or implied, is made by the USGS or the U.S. Government as to the functionality of the software and related material nor shall the fact of release constitute any such warranty. Furthermore, the software is released on condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use. Also refer to the USGS Water Resources Software User Rights Notice for complete use, copyright, and distribution information.

Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

See also, USGS policy on linking to non-Federal web sites.

Software License and Purchase Information

This software is a product of the U.S. Geological Survey, which is part of the U.S. Government.


This software is freely distributed. There is no fee to download and (or) use this software.


Users do not need a license or permission from the USGS to use this software. Users can download and install as many copies of the software as they need.

Public Domain:

As a work of the United States Government, this USGS product is in the public domain within the United States. You can copy, modify, distribute, and perform the work, even for commercial purposes, all without asking permission. Additionally, USGS waives copyright and related rights in the work worldwide through CC0 1.0 Universal Public Domain Dedication ( [Link exits USGS]).

Note: Some or all of this information is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of the free Adobe Reader from the Adobe web site. [Link exits USGS] Visit [Link exits USGS] for free tools that allow visually impaired users to read PDF files.

Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

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