Systems for treating stormwater run-off containing mineral oil for infiltration

Systems for treating stormwater run-off containing mineral oil serve to purify run-off from motor vehicle traffic areas to such an extent that the effluent may subsequently be infiltrated into the ground and groundwater. In addition to hydrocarbons from mineral oil, the systems also serve to retain heavy metals (zinc and copper, amongst others) which also arise in the area of application.

Regulatory framework

Systems for treating stormwater run-off containing mineral oil fall under the Ordinance on the determination of the suitability of construction products and construction techniques under water law by means of verifications in accordance with the Building Codes of the federal states (WasBauPVO).

Cf. WasBauPVO Section 1(1)(g) 'Systems for limiting hydrocarbons in mineral oil containing wastewater'.

DIBt grants national technical approvals (abZ) in combination with general construction technique permits (aBG) for these systems. The abZ/aBG serve to verify the suitability of the systems both from a construction and water legislation point of view.

The following approval principles are currently available:

Approval principles for systems for treating stormwater run-off containing mineral oil –Part 1: Systems for treating stormwater run-off from traffic areas for subsequent infiltration into ground and groundwater
(Zulassungsgrundsätze Niederschlagswasserbehandlungsanlagen – Teil 1: Anlagen zur dezentralen Behandlung des Abwassers von Kfz-Verkehrsflächen zur anschließenden Versickerung in Boden und Grundwasser)

Approval principles for systems for treating stormwater run-off containing mineral oil – Part 2: Permeable pavements for motor vehicle traffic areas for treatment of stormwater run-off for subsequent infiltration into ground and groundwater (stormwater-treating paving)
(Zulassungsgrundsätze Niederschlagswasserbehandlungsanlagen – Teil 2: Wasserdurchlässige Beläge für Kfz-Verkehrsflächen für die Behandlung des Abwassers zur anschließenden Versickerung in Boden und Grundwasser (Abwasserbehandelnde Flächenbeläge)

Approval principles for systems for treating stormwater run-off containing mineral oil –Part 3: Channel systems for treating wastewater from traffic areas for subsequent infiltration into ground and groundwater
(Zulassungsgrundsätze Niederschlagswasserbehandlungsanlagen – Teil 3: Rinnensysteme zur dezentralen Behandlung des Abwassers von Verkehrsflächen zur anschließenden Versickerung in Boden und Grundwasser)

The approval principles covering this work area are not published, but are made available to the applicants during the procedure.

National procedure

To prepare an abZ/aBG for your construction product, we need an application from you. We recommend that you contact us prior to doing so. Feel free to send us your enquiry informally via email to dibt(at)dibt(.)de or to the competent technical contact listed in the top right.

For a first assessment, please send us the following information:

  • Description of the construction product and its intended field of use
    • e.g. material, configuration, number of sizes, variants, dimensions
    • e.g. use in walls, ceilings, interior construction, building services
  • Description of the construction technique and its field of application
    • e.g. design of walls, ceilings, elements, etc., and interaction of components
    • e.g. application in foundation engineering, reinforced concrete construction, building insulation; as load-bearing or non-load-bearing component; under static and quasi-static loading; fire exposure; other environmental exposures
  • Information regarding impact on regulatory concerns
    • in particular structural integrity, fire protection, health and environment protection, sound insulation as well as thermal performance
  • Explanation of need for an abZ/aBG
  • Contact details
    • preferably email address and/or telephone number, as well as name, organisation/company, and postal address

We will then contact you to clarify the next steps.

If you already hold a DIBt approval and/or construction technique permit and wish to apply for an amendment, supplement, or renewal, please use the form provided below.