Wastewater treatment systems for transformer stations

These systems serve to treat stormwater run-off from transformer stations and retain insulating oil (transformer oil).

Regulatory framework

Systems for treating wastewater from transformer stations 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.

Application forms

National procedure

A national technical approval (abZ) and/or oder general construction technique permit (aBG) is granted upon application (see Model Building Code (MBO), Sections 16a(2) and18(2) and (4)). This also applies to amendments and supplements to, or renewals of existing approvals and/or construction technique permits.

No formal requirements apply. The following information is needed: name and address of the applicant, description of the product and/or construction technique and its field of use or application, type of decision required (new decision, amendment or supplement to, or renewal of, an existing decision).

Please feel free to use the template below.

Application for a national technical approval and/or construction technique permit (3 pages)

Version: January 2018; Application form

Application for amendment / supplementation / renewal of a national technical approval and/or construction technique permit (4 pages)

Version: January 2018; Application form

Guideline: How to provide drawings for national technical approvals and general construction technique permits (5 pages)

Version: July 2017

  • abZ/aBG
  • Z = new decision | E = supplement | Ä = amendment | V = renewal | G = valid until
    Subject concerned Applicant Decision no. Validity
    from / to
    Anlage zur Behandlung von Abwässern von Transformatorenständen LFRK

    Ingenieurdienste Sell

    Steimel 31

    34233 Fuldatal

    Z-83.7-40 Z: 15.01.2020
    G: 15.01.2025
    Anlage zur Behandlung von Abwässern von Transformatorenständen

    Amprion GmbH

    Rheinlanddamm 24

    44139 Dortmund

    Z-83.7-42 Z: 26.02.2020
    G: 26.02.2025

Stefan Hartstock
Head of Section (acting) – Wastewater Treatment Plants

Phone +49 30 78730-280
Email shr(at)dibt(.)de

Legal reference documents