Logo muenchen.de - the official city portal (To the homepage)
Drilling and working in groundwater

Drilling and working in groundwater

Work that penetrates so deeply into the ground that groundwater could be encountered must be reported at least one month before the planned start of work.

Contact

Description

This work includes, for example, groundwater measuring points, exploratory drillings and ground soundings. Drilling work with the following objectives must be notified using a notification form:

  • Installation of a geothermal probe
  • Construction of a well for garden irrigation
  • thermal utilisation of groundwater by means of a heat pump
  • Installation of a cooling system

The maximum groundwater level is decisive for the obligation to notify.

If groundwater is tapped unintentionally, this must be reported immediately to the Department for Climate and Environmental Protection, Water Law Division.

Boreholes that only tap into quaternary gravel and are not located in the water protection area may be started one month afterreceipt of the notification withcomplete documentation, provided that the work has not been prohibited within this period.

Drillings that go several metres into the deeper tertiary layers (clay, silt, sand) require a permit under water law in addition to the drilling notification.

Required documents

All documents are required on paper in duplicate as well as in digital form.

  • Completed notification form
  • General site plan M 1:25,000 with marking of the project location
  • Detailed site plan M 1:5,000 or M 1:1,000 with entry of the project
  • Expected layer profile of the subsoil (for groundwater measuring points with schematic expansion plan)

Duration & Costs

Processing time

Maximum four weeks.

Legal basis

Section 49 of the Federal Water Act (WHG)
Article 30 of the Bavarian Water Act (BayWG)

Links & Downloads

Landeshauptstadt München

Referat für Klima- und Umweltschutz
Sachgebiet Wasserrecht

Internet

Postal address

Landeshauptstadt München
Referat für Klima- und Umweltschutz
Sachgebiet Wasserrecht

Bayerstraße 28a
80335 München

Address

Bayerstraße 28a
80335 München

Directions

Public transport

Related services

Water law permit - construction projects in groundwater

In the course of a construction project, there may be interventions in the groundwater for which a permit under water law is required.

Drilling indicator well - heat pump/ cooling system up to 50kW

Drilling for the construction of extraction and absorption wells for groundwater heat pumps or cooling systems must be notified in good time before drilling work begins.

Report tree damage (during construction work)

If trees are damaged without authorisation, owners or polluters can be obliged to restore or plant replacement trees.

Advice on the ecological criteria catalogue

If you want to build on a municipal property, you must comply with the ecological criteria catalogue of the City of Munich. We can advise you on this.

Display for a garden fountain

If you want to construct a well to water your private garden with the groundwater, you must notify us at least one month in advance.

Tree felling - Protected tree species

In Munich, certain trees are specially protected by the Tree Protection Ordinance. These trees may only be cut down or pruned with authorisation.

Water law permit - building in flood areas

A permit under water law is required for the erection or extension of structures in an identified and mapped floodplain.

Water law permit - rainwater infiltration in water protection areas

A permit under water law is required for the extensive infiltration of rainwater into the subsoil in a water protection area.

Water law permit - geothermal probe/ geothermal collector

A permit under water law is required for the construction of a geothermal system (probe, collector, baskets or similar) with groundwater contact.

Completion of the replacement planting

If you have felled a tree, a replacement planting may be required as compensation. The completion of this replanting must be reported.