LGRB-BW HK50: Yield of hydrogeological units without top layers

The technical yield of the hydrogeological units spread on the earth’s surface without covering layers is shown. A distinction was made between solid and loose rocks. In order to technically develop and use a groundwater deposit, it must have sufficient yield. This refers, on the one hand, to the long-term yield, which corresponds to the groundwater supply in the catchment area of the version, on the other hand, the technical yield, which is, to a large extent, a characteristic of the hydrogeological unit. The latter was primarily taken into account in the preparation of the yield card. The yield was standardised to a drop of 10 m. The actual aquifer power, well effects and differences in the facilitation of hydrogeological units were not taken into account. In the event of insufficient data, experience was used. If the technical vibrancy of a hydrogeological unit comprises two classes, it receives the colouring of the class with the lower technical yield, it comprises three classes it receives the colouring of the middle class. Further information can be found at https://services.lgrb-bw.de/resources/link/hyd/geola_hyd_erg.pdf