Stanislaw Witczak, AGH University of Science and Technology (Poland)
Robert Duda, AGH University of Science and Technology (Poland)
Joanna Karlikowska, Jan Dlugosz University (Poland)
Anna Zurek, AGH University of Science and Technology (Poland)
Groundwater vulnerability map (GVM) of Poland have been issued based on GIS database (1:500000, pixels 100x100m) using ArcGIS platform. The map was prepared according to the methodology developed by authors, based on concept of travel time of water from the surface to the aquifer. GVM includes two sheets: (1) - assessment of vulnerability of the shallow aquifers i.e. groundwater interacting with surface waters and those terrestrial ecosystems whose status closely depends on the quantity and quality of groundwater (wetlands, peat-bogs, parts of forest ecosystems); (2) - assessment of vulnerability of the aquifers which are essential in providing communities with drinking water (Major Groundwater Basins - MGWB ).
The intrinsic vulnerability is taking into account. For shallow and therefore the most vulnerable groundwater, the soil protective properties based on soil maps of Poland and hydrogeological properties of the vadose zone are considered. The classes of groundwater vulnerability are based on Foster et al. 2002 and the vertical travel times of conservative contaminants through the vadose zone. The directions and the travel times of lateral groundwater flow are well visualized by a system of arrows.
The data acquired during preparation of the map should form a nucleus of hydrogeological and environmental database that can be enlarged - during preparation of maps with different risk scenarios. Taking into account its scale, the map is only of general and strategic importance for groundwater resources management. Any further protection planning with respect to groundwater bodies requires detailed maps at the scale 1:50,000 or larger.
The investigation presented are part of statutory research AGH University of Science and Technology (project 126.96.36.199).