14 wells and 26 groundwater measuring points, continuous coring, pumping tests, well shafts and measuring point closures.

For the lock in Erlangen, 26 groundwater measuring points were drilled using the dry drilling process with continuous coring and subsequent expansion to GWM. In addition, 16 submerged wells were sunk using the dry drilling process with continuous coring and subsequent expansion into wells. Three drilling rigs were used, suitable for carrying out dry drilling.