The layer SU 5490 is a possible fill of a construction cut for the floor 5321, W of rooms 3 and 4. At the moment it is not possible to clearly recognize the southern limit of the SU due to the fact that the cut SU 5500 doesn`t present clearly defined adges in the southern part. After cleaning wit54h trowel and brushes (29/9/2013) it was possible to clarify the edges in the southern portion of SU 5490.