Since 2013 a retired Associate Professor in Hydrogeology at UNESCO‑IHE, Johannes C. Nonner used to lecture in hydrogeology and groundwater investigation techniques. His special field of research at UNESCO-IHE covered groundwater development and environmental integrity in The Netherlands and other parts of the world, for which he was heavily involved in groundwater flow- and transport modelling. After graduating in hydrogeology at the Free University of Amsterdam, and before joining UNESCO-IHE in 1989, Johannes C. Nonner was involved in groundwater consultancy and training assignments around the globe.

• ContentsFOREWORD1 INTRODUCTION1.1 General background1.2 Hydrological systems2 ROCKS AND GROUNDWATER 2.1 Basic concepts2.2 Formation of groundwater systems 2.3 Groundwater investigation methods 3 GROUNDWATER MOVEMENT 3.1 Principles of groundwater flow 3.2 Flow in groundwater systems3.3 The flow systems concept4 WATER BALANCES 4.1 Groundwater balance concepts4.2 Groundwater balance estimation methods 4.3 Groundwater balances and their environment5 GROUNDWATER CHEMISTRY5.1 Groundwater and its interaction with rocks5.2 Groundwater chemistry and rock types 6 DEVELOPMENT OF GROUNDWATER 6.1 Groundwater management 6.2 Groundwater planning and investigations 6.3 Groundwater resources studiesEXERCISESSELECTED ANSWERS TO EXERCICES REFERENCES AND BIBLIOGRAPHYREGISTER

"This book is a good non-mathematical introduction to hydrogeology that should have a wide appeal to teachers and studenst alike"Mark Robinson, Wallingford, UK in: Hydrology and Earth Systems Sciences, Volume , number 2 (2003)."The book of Johannes C. Nonner can be considered as a ‘’step up’’ for people without knowledge of groundwater hydrology" - "The nice thing about Nonner's book is especially the examples. Many figures are adequate. They are all clear. And moreover, they sketch the application of knowledge into practice, in many cases in foreign countries (India, Pakistan, Middle-East), giving the book an added value: the importance of knowledge also becomes clear." - "In short: Introduction to Hydrogeology is a good book for a short introductory course in international groundwater hydrology, and has as additional objective arousing the need for additional knowledge. The price (of the paperback) is also attractive."Michael R. van der Valk in Stromingen 9, number 2 (2003); translated from Dutch."The book is an excellent summary of the occurrence of groundwater, its source, character, and availability."Philip E. LaMoreaux, Editor-in-Chief, Environmental Geology (2003)."Nonner’s writing style is straightforward and engaging, and the book is well organized with clear illustrations and easy-to-follow subheadings provided in the margins.The book’s many interesting examples and careful explanations offer a great resource for upper-level students or professional scientists entering the field of groundwater management. (…) the broad perspective and a thorough introduction to fundamentals provided by Nonner provide an ideal foundation for use in my honors and graduate seminars."Marcia Schulmeister in Groundwater, vol. 55 (1), January-February 2017.