Polish Geological Institute - National Research Institute (PGI-NRI) provides measurement results, tests in terms of quality and amount of groundwater, necessary for quantitative and chemical assessment of groundwater. The organisation and scope of groundwater monitoring was adapted to comply with European Community directives, particularly the Water Framework Directive (2000/60/EC), Groundwater Directive (2006/118/EC) and Nitrates Directive (91/676/EEC), in accordance with its specific features resulting from the unique geological structure and hydrogeological conditions in Poland. Groundwater monitoring is implemented on three levels: national, regional and local.

The map presents a simplified image of the surface geological structure of Poland at a scale of 1:1,000,000. It includes the following thematic layers: Geological units, Tectonics, Glaciation ranges and basic topographic layers (administrative boundaries, rivers, localities). The map was created for the needs of OneGeology-Europe.