Compactness of the mortar deposit suggested that it could have been a preparation layer for leveling the floor. Upon further excavation, consistent prescence of plaster along the northern and eastern walls suggests that the layer was formed naturally. Water and soil possibly settled on the concrete floor and mixed with the mortar and fallen plaster from the walls.

Layer remains unexcavated in 2016 season. Consists of large amounts of mortar, and is very compact, leading us to believe that it might be part of a later floor preparation of leveling layer in Room 8.