A Simple Method for Determining Specific Yield from ...

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A Simple Method for Determining Specific Yield from Pumping TestsBy L. E. RAMSAHOYE and S. M. LANGGROUND-WATER HYDRAULICSGEOLOGICAL SURVEY WATER-SUPPLY PAPER 1S36-CPrepared in cooperation with theNew Jersey Department of Conservationand Economic DevelopmentUNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON t DEPARTMENT OF THE INTERIOR BRUCE BABBITT, GEOLOGICAL SURVEY Robert M. Hirsch, Acting DirectorAny use of trade, product, or firm names in this publication is fordescriptive purposes only and does not imply endorsement by GovernmentFirst printing 1961 Second printing 1965 Third printing 1993For sale by Geological Survey, Map DistributionBox 25286, MS 306, Federal CenterDenver, CO 80225CONTENTSPage Abstract- ________________________________________ __________________ 41Introduction__________________________ _____________________________ 41Application to test data from Kearney, 45Literature cited___________________________________ ________________ 46ILLUSTRATIONSFIGURE 11.

that there is no recharge to the aquifer during the test and that all the water pumped is removed from storage. Figure 11 shows the shape of the cone of depression in the vicinity of a well pumping from a water-table aquifer. The following symbols or nomenclature are used in the mathemati­ cal derivations in this report :

  Storage, Recharge, Yield, Aquifer