Layer of grayish brownsilt with scattered fragmentary inclusions of pottery, bone, tiles, tufo, basalt and pebbles; natural accumulation/colluvium. Covers wall 2080 on west and is heavily truncated on south by drainage channel 4002. Layer 4003 on south side of drainage channel seems to be a continuation of this layer. North east corner covered by a pile of rocks brought in from other areas of excavation. Edge of rockpile is counted as the excavation limit. Layer photographial, mapped and documented, but not excavated