In the area already investigated in 1998 occupied by a Hellenistic farm, a well faced with waterproof plaster came to light together with a circular cavity and a channel crossing the entire area. These were part of a complex system of tanks. The well, provided with footholds for descent, joined onto the vault of a cuniculus below, forming a branched cistern. The circular cavity was situated north-east of the well and was accessed via a rectilinear ramp which continued inside it with steps that spiralled down to the bottom. In the wall not touched by the ramp there were a series of horizontal and diagonal post holes and housings. Both the cavity and the ramp were filled with earth mixed with tufa chippings and a substantial quantity of materials (bricks, pottery, _dolia_, _louteria_ and large, almost intact stone blocks, some of which moulded, deriving from the destruction of a grand building, perhaps public, in the area). The structure seemed to have functioned as a cistern, as shown by the concretions present on the walls and the housings which constituted the base for a work surface. The channel which crossed the entire excavation sloping slightly towards the east, formed, in the eastern half, part of a very complex system of tanks and small channels, mostly joining to the channel itself. The system was obliterated in one go by a dump of earth mixed with black glaze ware pottery, amphora, _dolia_ and brick. Across the area were numerous post holes, sometimes placed inside the tanks, whose shallowness and arrangement suggested they were part of some apparatus necessary for the particular process undertaken here. The data which emerged suggested that this was a processing area which required the use of still water held within shallow interconnecting tanks (washing or steeping).