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Table of Contents

Abstract

Introduction

Geography

Geology

Ground Water

Geologic Formations

Water Levels

Well Records

Logs of Test Holes

References

Plates

Table 6

Table 6--Results of pumping tests made on wells in Scott County, Kansas, using the Theis recovery method for determining permeability.

Well No.	Water-bearing formation	Discharge, gallons a minute	Drawdown, feet	Duration of pumping, minutes	Specific capacity (1)	Coefficient of transmissibility	Approximate thickness of water-bearing material, feet	Coefficient of permeability (2)
91	Pleistocene sand and gravel and/or Ogallala formation	666	24.86	195	26.8	46,270	38	1,200
137	Pleistocene sand and gravel and/or Ogallala formation	580	38.06	185	15.2	79,400	93	850
139	Pleistocene sand and gravel	729	36.20	800	20.1	10,300	54	190
172	Pleistocene sand and gravel	567	34.83	197	16.3	17,010	60	280

1. The specific capacity of a well is its rate of yield per unit of drawdown and is determined by dividing the tested capacity in gallons a minute by the drawdown in feet.
2. Coefficient of transmissibility divided by thickness of saturated water-bearing material; water temperature 60° F.; hence no correction for temperature is needed.

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