The purpose of this report is to describe the role of science in support of emerging issues and practices in the management of ground-water resources. Seven case studies are presented to demonstrate how datacollection networks, ground-water resource assessments, ...

This report provides an overview of some of the common approaches used to scientifically determine the important factors controlling the vulnerability of ground-water resources to contamination.

This report focuses on the specific aspect of describing different ways to simulate, in a numerical model, the physical features that act as hydrologic boundaries in an actual ground-water system.

The purpose of this Circular is to illustrate the hydrologic, geologic, and ecological concepts that must be considered to assure the wise and sustainable use of our precious ground-water resources.

The purpose of this report is to provide a brief review of selected concepts, assumptions, and uncertainties related to estimating areas contributing recharge to wells.

The purpose of this publication is to provide (1) suggestions toinstructors on teaching the course outlined in Part I of the Study Guide, (2)additional references and comments on the topics in Part I of the Study Guide,and (3) answers to the exercises in Part ...

The purposes of this course are (1) to review selected fundamental aspects of ground-water flow mechanics, (2) to introduce the basic differential equations of ground-water flow and the techniques for their numerical solution, and (3) to discuss and illustrate ...

The principal purpose of this study guide is to provide a broad selectionof study materials that comprise a beginning course in ground-water hydrology, with notes and exercises

Training document on narrowly defined elements of ground-water hydrology. Physical characteristics of the radial flow system in the vicinity of a well.

Thisreport describes the properties of the seven most common boundaryconditions encountered in ground-water systems and discusses majoraspects of their application.