If you wish to extract large quantities of groundwater, you require a permit under water law.

If you wish to change a project for which you have a permit under water law, you must apply to the competent authority for a permit amendment.

The permit specifies the type and extent of use and is limited in time. It may be subject to conditions and ancillary provisions. In contrast to an authorization, a permit can be revoked by the authorities. There is no legal entitlement to the use of groundwater.

You do not need a permit under water law if you only extract groundwater to a small extent and without adverse effects on the water balance, for example for

• your own household,
• watering your garden,
• for farm operations,
• watering livestock or
• the drainage of land.