1990
Foundation of the Altlastensanierung und Abraumdeponie Langes Feld GmbH
1992
Start of work to secure Contaminated Site W15: Langes Feld in northern Vienna
1995
Expansion of western section
1997
Completion of the seal wall chamber system. This ensures that no leachate escapes from the enclosed area into the surrounding groundwater horizon.
2011
Ing. Rudolf Rottner GmbH took over operational management of the landfill site and the mechanical biological treatment facility in Fischamend.
2010
Stockerau site acquired from Koller Transporte–Kies–Erdbau GmbH
2017
Contaminated Site W15: Langes Feld declared secure.
2018
Strategic Environmental Assessment to have Langes Feld landfill included in Vienna waste management plan
2019
Langes Feld residual material landfill opened in Fischamend