USGS

 

Study Guide for a Beginning Course in Ground-Water Hydrology, Part 1: Course Participants

U.S. Geological Survey, Open File Report 90-183

by O. Lehn Franke, Thomas E. Reilly, Ralph J. Haefner and Dale L. Simmons


Table of Contents

Preface

Background, purpose and scope, and technical qualifications for users of study guide

Annotated list of selected references in ground-water hydrology

Detailed outline with notes and exercises

Section (1) Fundamental concepts and definitions

Dimensions and conversion of units

Exercise (1-1) Dimensions and conversion of units

Water budgets

Exercise (1-2) Water budgets and the hydrologic equation

Characteristics of earth materials related to hydrogeology

Occurrence of subsurface water

Pressure and hydraulic head

Exercise (1-3) Hydrostatic pressure

Note (1-1) Piezometers and measurement of pressure and head

Exercise (1-4) Hydraulic head

Preparation and interpretation of water-table maps

Exercise (1-5) Head gradients and the direction of ground-water flow

Ground-water/surface-water relations

Exercise (1-6) Ground-water flow pattern near gaining streams

Section (2) Principles of ground-water flow and storage

Darcy's law

Exercise (2-1) Darcy's law

Note (2-1) Dimensionality of a ground-water flow field

Transmissivity

Exercise (2-2) Transmissivity and equivalent vertical hydraulic conductivity in a layered sequence

Aquifers, confining layers, unconfined and confined flow

Ground-water storage

Note (2-2) Ground-water storage, by Gordon D. Bennett

Exercise (2-3) Specific yield

Ground-water flow equation

Note (2-3) Ground-water flow equation - a simplified development, by Thomas E. Reilly

Section (3) Description and analysis of ground-water systems

System concept

Note (3-1) System concept as applied to ground-water systems

Information required to describe a ground-water system

Note (3-2) Information necessary to describe a ground-water system

Preliminary conceptualization of a ground-water system

Note (3-3) Preliminary conceptualization of a ground-water system

Exercise (3-1) Refining the conceptualization of a ground-water flow system from head maps and hydrogeologic sections by Herbert T. Buxton and Debra E. Bohn

Analysis of ground-water systems using flow nets

Note (3-4) Introduction to discretization

Exercise (3-2) Flow net beneath an impermeable wall

Note (3-5) Examples of flow nets

Regional ground-water flow and depiction of ground-water systems using hydrogeologic maps and sections

Note (3-6) Examples of hydrogeologic maps and sections

Geology and the occurrence of ground water

Description of a real ground-water system

Source of water to a pumping well

Exercise (3-3) Source of water to a pumping well

Role of numerical simulation in analyzing ground-water systems

Note (3-7) Role of numerical simulation in analyzing ground-water systems

Section (4) Ground-water flow to wells

Concept of ground-water flow to wells

Note (4-1) Concept of ground-water flow to wells

Analysis of flow to a well-- introduction to basic analytical solutions

Note (4-2) Analytical solutions to the differential equations governing ground-water flow

Note (4-3) Derivation of the Thiem equation for confined radial flow

Exercise (4-1) Derivation of the Dupuit-Thiem equation for unconfined radial flow

Note (4-4) Additional analytical equations for well hydraulic problems

Analysis of flow to a well --applying analytical solutions to specific problems

Exercise (4-2) Comparison of drawdown near a pumping well in confined and unconfined aquifers using the Thiem and Dupuit-Thiem equations

Exercise (4-3) Analysis of a hypothetical aquifer test using the Theis solution

Concept of superposition and its application to well-hydraulic problems

Note (4-5) Application of superposition to well-hydraulic problems

Exercise (4-4) Superposition of drawdowns caused by a pumping well on the pre-existing head distribution in an areal flow system

Aquifer tests

Note (4-6) Aquifer tests

Section (5) Ground-water contamination

Background and field procedures related to ground-water contamination

Physical mechanisms of solute transport in ground water

Note (5-1) Physical mechanisms of solute transport in ground water

Exercise (5-1) Ground-water travel times in the flow system beneath a partially penetrating impermeable wall

Exercise (5-2) Advective movement and travel times in a hypothetical stream-aquifer system

Note (5-2) Analytical solutions for analysis of solute transport in ground water

Exercise (5-3) Application of the one-dimensional advective-dispersive equation

Selected references

 


 

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