This SU appears to be a natural accumulation of soil over time. The soil had more clay in it than surrounding SUs, which may suggest a deposition of soil connected with multiple drainage features in room G-1 (i.e. SUs 6216, SU 6119, and SU 6179). The accumulation layer appears to be below the level of suspected early surfaces in room G-1 (SU 6161 and 6126) and covers features that we suspect would have been below the floor level (SUs 6177 and SU 6179). Since this SU was not excavated during the 2019 season, its exact relationship to the surfaces SU 6161 and 6126 is unclear since their depth limits have not yet been exposed.