Piotr Maloszewski (PhD, DSc) at HMGU-Institute of Groundwater Ecology, Neuherberg, Germany, served as associate editor for the Journal of Hydrology for 3 years and 5 years as associate editor in Hydrological Science Journal. He is reviewer for several journals in the field of hydrology and author/co-author of 160 publications and one book. Prof. Stanis?aw Witczak (PhD, DSc) at AGH University of Science and Technology, Department of Hydrogeology and Engineering Geology, Krakow, Poland is author and co-author of more than 160 publications and reviewer for Applied Geochemistry and Hydrogeology Journal. Prof. Dr Grzegorz Malina (PhD, DSc, EurIng) at AGH University of Science and Technology, Department of Hydrogeology and Engineering Geology, Krakow, Poland is Co-editor of Soil and Sediment Remediation: Mechanisms, technologies and applications, editor of 3 books (in Polish), author/co-author of 4 books (in Polish), reviewer for several journals and author/co-author of more than 150 papers and technical notes.

• Part 1 Groundwater quality; Part 2 Management of groundwater; Part 3 Groundwater – surface water interaction; Part 4 Regional groundwater problems; Part 5 Data processing amp; modelling

Piotr Maloszewski (PhD, DSc) at HMGU-Institute of Groundwater Ecology, Neuherberg, Germany, served as associate editor for the Journal of Hydrology for 3 years and 5 years as associate editor in Hydrological Science Journal. He is reviewer for several journals in the field of hydrology and author/co-author of 160 publications and one book. Prof. Stanis?aw Witczak (PhD, DSc) at AGH University of Science and Technology, Department of Hydrogeology and Engineering Geology, Krakow, Poland is author and co-author of more than 160 publications and reviewer for Applied Geochemistry and Hydrogeology Journal. Prof. Dr Grzegorz Malina (PhD, DSc, EurIng) at AGH University of Science and Technology, Department of Hydrogeology and Engineering Geology, Krakow, Poland is Co-editor of Soil and Sediment Remediation: Mechanisms, technologies and applications, editor of 3 books (in Polish), author/co-author of 4 books (in Polish), reviewer for several journals and author/co-author of more than 150 papers and technical notes.

• Part 1 Groundwater quality; Part 2 Management of groundwater; Part 3 Groundwater – surface water interaction; Part 4 Regional groundwater problems; Part 5 Data processing amp; modelling

Piotr Maloszewski (PhD, DSc) at HMGU-Institute of Groundwater Ecology, Neuherberg, Germany, served as associate editor for the Journal of Hydrology for 3 years and 5 years as associate editor in Hydrological Science Journal. He is reviewer for several journals in the field of hydrology and author/co-author of 160 publications and one book. Prof. Stanis?aw Witczak (PhD, DSc) at AGH University of Science and Technology, Department of Hydrogeology and Engineering Geology, Krakow, Poland is author and co-author of more than 160 publications and reviewer for Applied Geochemistry and Hydrogeology Journal. Prof. Dr Grzegorz Malina (PhD, DSc, EurIng) at AGH University of Science and Technology, Department of Hydrogeology and Engineering Geology, Krakow, Poland is Co-editor of Soil and Sediment Remediation: Mechanisms, technologies and applications, editor of 3 books (in Polish), author/co-author of 4 books (in Polish), reviewer for several journals and author/co-author of more than 150 papers and technical notes.

• Part 1 Groundwater quality; Part 2 Management of groundwater; Part 3 Groundwater – surface water interaction; Part 4 Regional groundwater problems; Part 5 Data processing amp; modelling