Open File Report 2002-25C

Calculation of Yield for High Plains Wells: Relationship between saturated thickness and well yield By G.R. Hecox, P. A. Macfarlane and B. B. Wilson With contributions from other authors in the report series

A component of the Technical Report series 2002-25: Technical Support for Ogallala Aquifer Assessment, Planning, and Management

A final report of Fiscal Year 2002 activities by the Kansas Geological Survey supported by contracts with the Kansas Water Office and the Kansas Department of Agriculture

Kansas Geological Survey Open File Report 2002-25C KANSAS

L OGICA L EO G

VEY SUR

GEOHYDROLOGY

The University of Kansas, Lawrence, KS 66047: (785) 864-3965; www.kgs.ukans.edu

KGS OFR 2002-25C. Calculation of yield for High Plains aquifer wells: relationship between saturated thickness and well yield Table of Contents 1. 2.

Introduction Data Methods 2.1 Calculation of minimum required saturated thickness 2.2 Use of required saturated thickness to estimate the remaining effective saturated thickness in the high plains aquifer 3. Results 3.1 Saturated thickness required to sustain flow rate 3.2 Use of required saturated thickness to estimate the remaining effective saturated thickness in the High Plains aquifer 4. Impact of Geologic Framework on Estimation of Ogallala Aquifer Hydraulic Conductivity Values 4.1 Preliminary Results 5. Data limitations and applications 6. Policy and management implications 7. Potential for improved data or applications. References

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