In case of imminent endangerment of the environment, BALSA GmbH undertakes the projecting and realisation of measures for the protection / remediation of affected properties.

Contaminated site W27 “Schlickplatz fuel station”


Project type:

Between 1926 and 1991, a fuel station was operated on the contaminated site “Schlickplatz fuel station” in the 9th municipal district of Vienna. Otto fuels and diesel were stored in underground tanks and issued via pumps along a fuel station lane. The available documents indicate contamination caused fundamentally by petrol.
The contaminated site has been recorded in the contaminated site register with priority 3 since 15.2.2015. Due to the heavy burden in the unsaturated zone and the fundamentally very good mobilisation capacity of the pollutants, the contaminated site constitutes a considerable risk for the environment.
The area is currently being used as a side road and public parking space respectively.
The last available analyses originate from 2013. BALSA was commissioned in January 2019 to include the contaminated site in the processing as a Section 18 ALSAG case.

Assignments of BALSA:

Updating of the damage status and recommendation for suitable measures to protect or rehabilitate the contaminated site:

  • Determination of the required additional exploration measures
  • Creation of the call for tender documents
  • Conducting of award procedures
  • Accompaniment of the exploration measures (preservation of evidence with regard to groundwater, pump attempts, extraction attempts) over 3 years
  • All issues of project management and project control

A monitoring of the groundwater is being carried out at the present time. The current programme incorporates the period 2020 – 2022.

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