USGS Groundwater Information
New & Noteworthy
USGS Groundwater Watch
USGS maintains a network of active wells to provide basic statistics about groundwater levels.
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USGS Water Science Centers are located in each state.
Other USGS Water Science Areas
Groundwater Toolbox: A graphical and mapping interface for analysis of hydrologic data
Overview of Groundwater Toolbox
The Groundwater Toolbox is a graphical and mapping interface for analysis of hydrologic data. The software is a customized interface built on the non-proprietary, open-source MapWindow geographic information system software in a Microsoft Windows computing environment. The Groundwater Toolbox allows for the retrieval of hydrologic time-series data (streamflow, groundwater levels, and precipitation) from the USGS National Water Information System; preprocessed meteorological data from the National Oceanic and Atmospheric Administration National Climatic Data Center also are available with the Groundwater Toolbox.
The Groundwater Toolbox has several methods for the analysis of streamflow-hydrograph data. These methods include six hydrograph-separation techniques — the Base-Flow Index (BFI Standard and Modified), HYSEP (Fixed Interval, Sliding Interval, and Local Minimum), and PART methods — and the RORA recession-curve displacement method and associated RECESS program to estimate groundwater recharge from streamflow data.
Groundwater Toolbox Information and Downloads
The current release of the Groundwater Toolbox is version 1.1.1, released October 20, 2015. Users are encouraged to read the documents that are provided in the 'docs' directory of this software distribution.
Documentation of Groundwater Toolbox
Point of Contact
Support is provided for correcting bugs and clarification of how the Groundwater Toolbox is intended to work. Only limited assistance can be provided for applying Groundwater Toolbox to specific problems by contacting Paul Barlow.
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
Please refer to the USGS Water Resources Software User Rights Notice for complete use, copyright, and distribution information. 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.
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. Visit http://www.adobe.com/accessibility/ for free tools that allow visually impaired users to read PDF files.