Erlaubnis für das Direkteinleiten von vorgereinigtem Wasser aus Kleinkläranlagen in Gewässer in einem förmlichen Verfahren beantragen

If you want to discharge wastewater from a small wastewater treatment plant into a body of water, you can apply for a permit under water law from the responsible water authority. In some cases, this can only be granted in a formal administrative procedure.

If you want to discharge pre-treated wastewater from a small wastewater treatment plant into a body of water, you need a permit under water law.

A small wastewater treatment plant is a wastewater treatment plant from which less than eight cubic meters per day of wastewater from households and similar wastewater is discharged.

The wastewater from the small wastewater treatment plant can seep away or be discharged into an above-ground body of water.

Surface waters are rivers, lakes, canals, streams, ditches and ponds.

The authority may have to carry out a formal administrative procedure. This gives interested parties the opportunity to comment on the project. To this end, the authority publishes the project and, if necessary, holds an oral hearing.

The permit specifies the type and extent of use. It may be linked to conditions and ancillary provisions. In contrast to an authorization, a permit can be revoked by the authorities.

• Application form
• Documents for the small wastewater treatment plant (depending on availability)
  • Declaration of performance, building authority approval
  • Drawings, dimensioning documents
  • Proof of tightness
  • Maintenance logs
• For infiltration
  • Proof of infiltration
  • Hydrogeological report
  • Illustration, dimensioning documents of the infiltration system
• For discharge into a surface water body
  • Hydrological report
  • Statement and consent of the watercourse owner or person responsible for maintenance
• Site plan, extract from cadastral map
• Construction drawings
• Consent of affected property owners
• Landscape conservation plan, if applicable
• Technical contribution to the Water Framework Directive, if applicable

• The requirements specified in the Waste Water Ordinance are complied with.
• The discharge is compatible with the requirements for water characteristics and other legal requirements.

You can apply for a permit to discharge pre-treated wastewater from a small wastewater treatment plant into a body of water from your local water authority. The general procedure is as follows:

• Send your application for a permit with the required documents to the responsible water authority.
• This
  • checks that your application and documents are complete and contacts you if any information or documents are missing,
  • examines your application from a water management and water law perspective and involves other authorities if necessary.
• The competent authority will publicly announce the project.
• If necessary, the competent authority will hold an oral hearing with the parties involved.
• You will receive
  • a permit or
  • a notice of refusal
• You will also receive a fee notice.
• You pay the fee.

The processing time depends in particular on the quality and scope of your application and the documents.

There is no statutory deadline. Apply for the permit in good time before starting your project.

Action before the administrative court

• Direct discharge of pre-treated wastewater from small wastewater treatment plants into bodies of water with formal administrative procedures Permit
• A permit under water law must be applied for from the competent authority for the discharge of pre-treated wastewater from a small wastewater treatment plant into a body of water.
• In certain cases, the authority must carry out a formal administrative procedure.
• In a formal procedure, interested parties have the opportunity to comment on the project. This requires a public announcement and possibly an oral hearing.
• The wastewater from the small wastewater treatment plant can be infiltrated or discharged into a surface water body.
• Surface waters are rivers, lakes, canals, streams, ditches and ponds.
• Prerequisite: The requirements specified in the Wastewater Ordinance are complied with and the discharge is compatible with the requirements for water characteristics and other legal requirements.
• Documents required, if applicable:
  • Documents relating to the small wastewater treatment plant, for example declaration of performance, building authority approval, drawings, dimensioning documents, proof of tightness, maintenance logs
  • In the case of infiltration, proof of infiltration, hydrogeological report, diagram, dimensioning documents for the infiltration system
  • In the case of discharge into a surface water body Hydrological report Statement and agreement of the water body owner or person responsible for maintenance
  • Site plan, extract from cadastral map
  • Construction drawings
  • Consent of affected property owners
  • Landscape conservation plan
  • Technical contribution to the Water Framework Directive
• Application is subject to a fee
• Responsible: competent authority of the respective federal state