Authority for the Environment, Climate, Energy and Agriculture

Indicate a change in the location, condition or operation of a wastewater treatment plant

You must notify the responsible authority under certain conditions of any change in the location, condition or operation of a wastewater treatment plant.

Important notes


  • You must build, operate and maintain wastewater systems in such a way that the requirements for wastewater disposal are met.
  • Wastewater treatment plants that require approval must be built, operated and maintained by you in accordance with the state of the art.

Documents required

Documents must be submitted that demonstrate the nature, scope and effects of the intended change. The specific documents required depend on the type of system and the type of wastewater that is handled in the system. It is therefore recommended that you contact the responsible office in advance and ask for the documents required in your specific case.

Please note

The obligation to report applies to independently operated industrial wastewater treatment plants that are not ancillary facilities within the meaning of Section 1 Paragraph 2 No. 2 of the 4th BImSchV. Furthermore, the wastewater must come from one or more plants in accordance with the Industrial Emissions Directive (IE-RL) and not fall under the Municipal Wastewater Directive (91/271/EEC).

An existing water permit or indirect discharger permit may also need to be adjusted following changes to the system.


At least one month before the change is to start.

Procedure & Fees


  • It is recommended that you contact the responsible authority in advance to determine whether your project requires notification or approval. The responsible office can also provide you with the necessary documents.
  • You submit your report together with the necessary documents to the responsible authority.
  • The responsible authority will check your ad for completeness and whether it may require approval and, if necessary, request any missing documents from you.
  • The result of the test will be communicated to you.

Processing time

The processing time depends on the quality and scope of the applications and documents submitted.


160 EUR - 15,000 EUR

Legal notes

Legal remedies

Objections to the decision can be filed within one month of notification.

Legal basis

§ 60 paragraph 4 Water Resources Act (WHG)

§§ 2-6 Industrial Wastewater Treatment Plant Approval and Monitoring Ordinance (IZÜV)

Appendix 1, Section 4.10.2 Environmental Fee Regulations (UmwGebO)

Service description

If you want to make a change to your wastewater treatment system, which ones

  • the location, condition or operation of your facility and
  • does not require approval and
  • can have an impact on the environment
then you must report this proposed change to the responsible authority in advance.

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Address and contact information


Authority for the Environment, Climate, Energy and Agriculture
Wastewater Management
Neuenfelder Straße 19 21109 Hamburg

Facility info

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We have a limited number of customer parking spaces. To reserve a parking space, please contact our receptionist by e-mail at or by telephone on +49 40 428 40 - 50 50. Our working hours are: Monday to Thursday from 8:00 a.m. to 3:15 p.m , Friday from 8 a.m. to 1:30 p.m.

Public transport

S3/S31 Wilhelmsburg, Bus 13/151/152/154/156//155/252 Inselpark

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