This is the second edition of the popular first edition of the book with the same title. The changes to this edition involve the contents of the book, but not the basic philosophy behind it, which is to be a practical guide to all who are organizing, conducting and interpreting pumping tests. This book now includes the step-drawdown test, the slug test, and the oscillation test. Three chapters on pumping tests in fractured rocks were added as a result of contructive reviews. It would be remiss, however, not to warn readers that in spite of the intense research that fractured rocks have undergone in the last two decades the problem is still the subject of much debate. What is presented are some of the common methods, which are based on ideal conditions which are rarely met in nature. It has also been updated in the light of developments that have taken place since the first edition appeared some twenty years ago. A more modern method of analyzing pumping tests in unconfined aquifers with delayed yield is presented. Some earlier feld examples have been re-evaluated and several new ones added. Another change is that, more than before, emphasis is placed on the intricacy of analyzing field data showing that the drawdown behaviour of totally different aquifer systems can be very similar.

Chapter 1 - Basic concepts and definitions
Chapter 2 - Pumping tests
Chapter 3 - Confined aquifers
Chapter 4 - Leaky aquifers
Chapter 5 - Unconfined aquifers
Chapter 6 - Bounded aquifers
Chapter 7 - Wedge-shaped and sloping aquifers
Chapter 8 - Anisotropic aquifers
Chapter 9 - Multi-layered aquifer systems
Chapter 10 - Partially penetrating wells
Chapter 11 - Large-diameter wells
Chapter 12 - Variable-discharge tests and tests in well fields
Chapter 13 - Recovery tests
Chapter 14 - Well-performance tests
Chapter 15 - Single-well tests with constant or variable discharges and recovery tests
Chapter 16 - Slug tests
Chapter 17 - Uniformly-fractured aquifers, double-porosity concept
Chapter 18 - Single vertical fractures
Chapter 19 - Single vertical dikes