Hydrogeological Map 1:500,000 — Classification of Hydrogeological Units

Distribution of hydrogeological classification of hydrogeological units as a layer of hydrogeological map 1:500 000. Zoom limit min. 1:1 000 000 to max. 1:200 000. The hydrogeological classification of near-surface hydrogeological units is based on cavity type (pores, crevices, karsth cavities) and permeability of the various loose rock and solid rock aquifer types or low conductors. The colouring of the units should only be considered as a general indication of the potential groundwater management; for example, morphologically higher parts of the units are usually groundwater-free. A separate representation of the near-surface loosening area, in which the otherwise low permeable solid rocks lead to a limited degree of groundwater, is not possible for scale reasons. The technical basis for the classification of hydrogeological units is the hydrogeological overview map of Germany on a scale of 1:200,000 (HÜK200), which was prepared for the Bavarian share between 2000 and 2003 by the former Bavarian Geological Office in cooperation with the Federal Institute for Geosciences and Raw Materials (BGR) in Hanover. Geometries and legend units are designed for the viewing scale 1:500 000 (1 cm on a map correspond to 5 km in nature) and are i.e. strongly generalised. The HK 500 is intended as a basis for larger-scale considerations, it does not replace detailed examinations and assessments by a specialist office in the planning of local projects.