
Anyone passing by the PFAS-containing soil storage facilities (also called TTOPs) the coming months may see some work taking place there. Along the sides of TTOP 4 and TTOP 5, we will replant about 750 birch trees. The birches stood along the old storage site at Schiphol Rijk and will now be given a new home. In order to plant the trees, standard research must first be conducted into possible unexploded ordnance from the Second World War. This will be done with a scanning device, and for this purpose the grass will first be mowed this week.
We will also soon install a rabbit grid around TTOP 3 as a trial. Research by an ecologist showed that the damage to the foil is most likely caused by rabbits. Locks in the grid will allow rabbits to leave but not enter the TTOP. A trial with different covering materialis also under way. Damage found during inspections will be repaired immediately, but prevention is better than eradication.
PFAS entered Schiphol's environment through firefighting foam, used since 1985 for liquid fires. No longer used in training since the 1990s and in incidents since 2020.