Excavations have been undertaken in the western part of the sanctuary of Demeter by a team from Innsbruck University.

The new trenches revealed that the sanctuary extends further to the north and west than had been thought to date. The remains were uncovered of walled structures on a north-south alignment. These rooms can be dated to the 4th to 3rd century B.C.

In the northern area of the sanctuary (trench 6/01) a tank (2.40 × 2.50m) came to light. The walls and floor constructed with squared limestone blocks, the floor sloping slightly from west to east with an aperture for drainage. The structure is cut by a small wall, of later date, which continues beyond the edge of the tank, attesting the latter’s obliteration. This wall is crowned by a series of terracotta pepes which channel water above the structure.

Tanks placed within sacred areas, as part of purification rituals, are well documented in southern Italian sanctuaries of the same date, both in Greek and indigenous contexts within the Lucanian territory.