Authority for the Environment, Climate, Energy and Agriculture

Amalgam separator planned discharge or change of wastewater discharge

As the operator of a dental practice or clinic, you have certain reporting obligations with regard to your amalgam separator.

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Notice on the discharge of waste water from amalgam separators

Detailed description

During dental treatment, amalgam residues from dental fillings can enter the wastewater of the treatment area. As the operator of a dental practice or dental clinic, you must ensure that your amalgam load is reduced. For this reason, an approved amalgam separator must be installed and operated in the wastewater drain of your respective treatment areas.



You have certain reporting obligations in connection with the discharge of waste water from your amalgam separators.

  • You must report the planned discharge of waste water from a newly installed amalgam separator.
  • You must report the replacement of an amalgam separator in an already reported discharge, unless it is a 1:1 replacement.
  • You must report the decommissioning of an amalgam separator.
  • You must change the operator of the dental practice or dental clinic.
 

Information

Prerequisites

  • You want to discharge wastewater from an amalgam separator into the public sewage system.
  • You want to change an existing wastewater discharge from an amalgam separator
  • You want to shut down an amalgam separator.
  • You want to report a change of operator for a dental practice or clinic that operates amalgam separators.

Documents required

  • Site plan at least on a scale of 1:1,000 showing the discharge point into the public sewage system.
  • Practice plan showing the location of the practice in the building, the location of the sewage pipes and the location and designation of the treatment areas and amalgam separators
  • Copy of the general building approval of the amalgam separator
  • Technical data sheets of the amalgam separator

Please note

There are no special features to consider.

Deadlines

You must submit the notification to the responsible authority at least 1 month before the start of the planned wastewater discharge or change.

Procedure

  • You submit your notification online or in writing together with the necessary documents to the responsible authority.
  • After submission, you will usually receive a confirmation from the responsible authority that your report has been received. Keep this confirmation for your records.
  • The competent authority will examine the information submitted and may impose additional requirements or conditions. An on-site inspection may also be carried out.

Processing time

The processing time depends on the individual case.

Fees

No

Legal remedies

This is a complaint filed by you. No legal remedy is provided.

Legal basis

§ 11a Paragraph 3 No. 2 Hamburg Wastewater Act (HmbAbwG)


https://www.landesrecht-hamburg.de/bsha/document/jlr-AbwGHAV6P11a

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Address and contact information

Authority for the Environment, Climate, Energy and Agriculture

We have a limited number of customer parking spaces. To reserve a parking space, please contact our receptionist by e-mail at zugang@bsw.hamburg.de 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.

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Keywords: Wastewater Act

Last updated: 06.02.2026