Drilling and working in groundwater
<p>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:</p>
<ul>
 <li>Installation of a geothermal probe</li>
 <li>Construction of a well for garden irrigation</li>
 <li>thermal utilisation of groundwater by means of a heat pump</li>
 <li>Installation of a cooling system</li>
</ul>
<p>The maximum groundwater level is decisive for the obligation to notify.</p>
<p>If groundwater is tapped unintentionally, this must be reported immediately to the Department for Climate and Environmental Protection, Water Law Division.</p>
<p>Boreholes that only tap into quaternary gravel and are not located in the water protection area may be started <strong>one month after</strong><strong>receipt of the notification with</strong><strong>complete documentation</strong>, <strong>provided that</strong> the work has not been prohibited within this period.</p>
<p>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.</p>
Cooling Drilling Earth excavations Excavation Excavation down to the groundwater Exploration Exploratory Exploratory drilling Geothermal Ground Ground sounding Groundwater Groundwater measuring point Irrigation Measuring Mental Notifications Notify Obligation Protection Pumpen Soil Soil exploration Sound Sounding Subsoil Subsoil exploration Tertiary Test drilling Working environmental graves grounds levels several utilisation

# Drilling and working in groundwater

## Summary

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.
## 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 after****receipt of the notification with****complete 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.

## Responsible Department

RKU
## 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)

## Processing Time

Maximum four weeks.

## Legal Basis

Section 49 of the Federal Water Act (WHG)  

Article 30 of the Bavarian Water Act (BayWG)

## Further Links

* [Drilling notification for wells for thermal utilisation up to 50kW](https://stadt.muenchen.de/service/info/sg-wasserrecht/10318043/)
* [Drilling notification for wells for thermal utilisation over 50kW](https://stadt.muenchen.de/service/info/10175255/)
* [Drilling notification and water law permit for a geothermal probe/collector](https://stadt.muenchen.de/service/info/1072672/n0/)
* [Notification for a garden well](https://stadt.muenchen.de/service/info/10175162/n0/)
* [Notification form for undeveloped boreholes and earth excavations](https://stadt.muenchen.de/dms/Home/Stadtverwaltung/Referat-fuer-Klima-und-Umweltschutz/Dokumente/Wasserrecht/Grundwasser/Nutzung/anzeige_bohrungen.pdf)
* [Notification form for groundwater measuring points](https://stadt.muenchen.de/dms/Home/Stadtverwaltung/Referat-fuer-Klima-und-Umweltschutz/Dokumente/Wasserrecht/Grundwasser/Nutzung/anzeige_gwm.pdf)

## Keywords

* Cooling
* Drilling
* Earth excavations
* Excavation
* Excavation down to the groundwater
* Exploration
* Exploratory
* Exploratory drilling
* Geothermal
* Ground
* Ground sounding
* Groundwater
* Groundwater measuring point
* Irrigation
* Measuring
* Mental
* Notifications
* Notify
* Obligation
* Protection
* Pumpen
* Soil
* Soil exploration
* Sound
* Sounding
* Subsoil
* Subsoil exploration
* Tertiary
* Test drilling
* Working
* environmental
* graves
* grounds
* levels
* several
* utilisation
