SU 8397 is a small, thin, mortared wall which served as the southern limit of a small signinum basin (as yet unexcavated) in Room I-20. There is a hole in wall 8340 directly above this basin feature connecting the basin in Room I-22 to it; liquid would have flowed from Room I-22 to I-20.
In conjunction with walls 8340, 8396, and 8398, 8397 forms a basin-like structure to be further excavated in a future season.
EW wall in Room 20, north of cut; EW wall in Room 20, south of cut; NS wall in Room 20, east of cut.
EW wall in Room 20, south of cut.