We have just been granted permission to work in another contaminated site in Zorrozaurre island (Bilbao). At the moment, this site is currently contaminated with polychlorinated biphenyls (PCBs) and petroleum hydrocarbons. This contamination was detected thanks to the installation of several piezometers. As part of the NANOBIOR-Hazitek project, we are currently designing the installation, in this site, of a biopile that will combine the application of zero valent iron nanoparticles (nZVI) and biostimulation (bioremediation) to degrade the target contaminants.