This is associated with Building A. It had a circular marble well-head with a rectangular well slab beneath. The construction throughout was of well tiles. It produced little to a depth of -8.60m. Between ... 4th c. A.D.
Byzantine pottery begins after 4.70m.; above that Roman.
Diameter 0.92m; water level -5m. Tiled well; height of tiles 0.62m ... Byzantine re-use of Roman well.