Professor Bernward Hölting was formerly the leading Director of Geology for the Hessian Regional Authorities and an associate lecturer at the University of Marburg. In 1982 he was appointed an honorary professor. From 1980 until 1987 he headed the Department of Hydrogeology at the German Geological Society. He has worked in numerous expert committees.Professor Wilhelm G. Coldewey taught  Applied Geology at the Westfalian Wilhelm’s University in Munster from 1999 until 2009. In the period between 1970 and 1999 he held a leading position in the  company “German Montan Technology Ltd.” based in Essen. He was an associate lecturer at the Ruhr University in Bochum and at the Technical University in Clausthal, in 1993 he was appointed an honorary professor. Professor Coldewey was the editor of the DMT reports in the fields of research and development and is an associate editor of various professional journals and a valued colleague in numerous national and international boards.

• Chapter 1. Introduction.- Part 1. General Hydrology.- Chapter 2. Heories and basic terminology.- Chapter 3. Voids in the subsoil.- Chapter 4. Geohydraulics.- Chapter 5. Surface water infiltration.- Chapter 6. Groundwater Dynamics.- Chapter 7. Ground water Morphology.- Chapter 8. Hydrological cycle – water balance.- Chapter 9. Numerical Groundwater models.- Chapter 10. Basic Physical and Chemical Factors.- Part II. Groundwater Properties.- Chapter 11. Basic chemical and physicochemical principles.- Chapter 12. Physicochemical processes in groundwater flow.- Chapter 13. Ground water Fauna: Biology.- Chapter 14. Ground water classifications. Part III. Applied Hydrogeology.- Chapter 15. Ground water exploitations.- Chapter 16. Geohydraulic investigations.- Chapter 17. Water exploitation.- Chapter 18. Chapter 19. Building-area ground damage due to groundwater abstraction.

“The book is also suitable for projects in the field of abandoned mines and post-mining processes. This textbook is recommended for experts and students of hydrogeology and water management.” (Peter Goerke-Mallet, World Of Mining, Vol. 72 (2), 2020)“The textbook provides a complete introduction on hydrogeology. The book is a comprehensive reference for earth science professionals and students involved in groundwater exploitation as well as for geotechnical engineers … .” (GeoResources Journal, Issue 4, 2018)