USGS Groundwater Information
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USGS Water Science Centers are located in each state.
Notice: This page refers to a legacy product that is no longer maintained by USGS. USGS no longer updates this page, but it may be useful as a reference or resource.
Type curves for selected problems of flow to wells in confined aquifers
The FORTRAN source code for the programs documented in Reed (1980) is available for download. The source code for all the programs is contained in one single text file ("Reed_typcurves_TWRI_3_B3.txt"). These programs are no longer supported by the USGS but are being made available because they may be of use to individuals who want to reuse them in the analysis of aquifer tests. The source code is distributed free of charge by the U.S. Geological Survey.
Information and Downloads
Point of Contact
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 Software User Rights Notice for complete use, copyright, and distribution information. The USGS provides no warranty, expressed or implied, as to the correctness of the furnished software or the suitability for any purpose. The software has been tested, but as with any complex software, there could be undetected errors. Users who find errors are requested to report them to the USGS.
References to non-USGS products, trade names, and (or) services are provided for information purposes only and do not constitute endorsement or warranty, express or implied, by the USGS, U.S. Department of Interior, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy.
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