USGS

Factors Affecting Areas Contributing Recharge to Wells in Shallow Aquifers

U.S. Geological Survey, Water Supply Paper 2412

by Thomas E. Reilly and David W. Pollack


Table of Contents

Abstract

Introduction

Areas Contributing Recharge and Sources of Water to Wells

Previous Related Work

Factors Affecting Areas Contributing Recharge to Wells

Method of Analysis

Delineation of Areas Contributing Recharge to Wells in Hypothetical Ground-Water Systems

Case 1-Homogeneous System

Well Discharge of 2,000 Cubic Feet per Day from Three Different Screened Intervals

Well Discharge of 10,000 Cubic Feet per Day from Three Different Screened Intervals

Well Discharge of 30,000 Cubic Feet per Day

Well Discharge of 30,000 Cubic Feet per Day in the Presence of an Additional Well Discharging 130,000 Cubic Feet per Day

Case 2-Low-Hydraulic-Conductivity Local Confining Unit

Case 3-High-Hydraulic-Conductivity Units

Case 4-Random Distribution of Hydraulic Conductivity

Discussion of Simulation Results

Considerations for the Protection of Ground Water

References Cited

 


 

Back

 



FirstGov button  Take Pride in America button