2006 Ivory Coast toxic waste dump waste from European ports. Trafigura claims that this was done under agreement that the waste would be treated and disposed of legally, and that the substance was waste ("slops") from the routine washing of "Probo Koala"'s tanks. Again according to Trafigura, it became apparent that the untreated slops had been dumped illegally at municipal refuse dumps. They contend that the slops were an alkaline mix of water, gasoline, and caustic soda, along with a very small amount of foul-smelling and toxic hydrogen sulfide. Further, the company says that their tests show that, while noxious, the slop from their ship could
2006 Ivory Coast toxic waste dump July 2006, the "Probo Koala" called at Amsterdam port in the Netherlands to discharge the slops contained in the vessel's dedicated slops tanks. During the transfer such a foul smell was released onto the city that the disposal company Amsterdam Port Services B.V. (APS) decided to consult with the city of Amsterdam. After half the waste was transferred APS increased the handling fee 30-fold. APS then informed the ship's master that authorities had given permission for the slops previously removed to be returned to the vessel. The Probo Koala departed Amsterdam on 5 July 2006 for Paldiski, Estonia, with the