If you want to take measures to obtain data about the geological subsurface, you must declare this.
If you want to carry out earthworks that could affect the groundwater, you must notify the responsible authority in advance.
In order to use the geothermal heat, coils (geothermal heat collectors) are laid about 2 m deep, through which a mixture of water and antifreeze circulates. Moist and sandy soils are ideal for geothermal collectors.
If you would like to know something about the geology of Hamburg, you are always welcome to contact the Geological State Office. We will help you!
