Erdaufschluss: Arbeiten mit unmittelbaren oder mittelbaren Auswirkungen auf das Grundwasser anzeigen

§Section 49 (1) sentence 1 WHG

Do you want to carry out drilling or other earthworks that could affect the movement or quality of the groundwater? Then you must notify the competent authority in advance.

If you want to carry out so-called earth excavations, you must notify the competent authority. Earth excavations are boreholes or other earthworks that reach so deep into the ground that they can affect the movement or composition of the groundwater.

Notification is required for the following projects:

• Exploration of old mines or cavities
• exploration of contaminated sites (except groundwater measuring points)
• wells
• Geochemical investigation
• Geophysical investigation
• Geothermal exploration (other)
• Groundwater measuring point (except wells)
• Engineering geological investigation or subsoil investigation
• Mapping (except base drilling)
• Raw material exploration drilling
• Other exploration purposes
• Geothermal use with groundwater heat pumps

Each borehole provides data for the evaluation of the subsoil at the respective location. The notification enables the responsible authorities to gain an impression of the drilling project and the drill cuttings produced on site. The authorities can take additional measurements and ensure the quality of the drilling results. This prevents costly mistakes in underground spatial planning.

Once you have indicated your planned excavation, you can start drilling.

The notification must be made before you start work.

Contradiction

• Earth excavation Notification of receipt of work with a direct or indirect impact on groundwater
• Drilling work/earth excavations that may affect the movement or quality of the groundwater must be notified.
• The competent authority must be notified at least one month before work begins.
• The construction project may begin after the notification has been submitted.
• The competent authorities are determined by the location of the planned drilling points, usually the lower water authorities