Part of the cistern system 44/ΙΓ - 46/ΙΑ - 42/Θ.
Objects with context as "cistern 44ΙΓ, mouth of 46/ΙΑ" are listed with D 12:2.
The following objects are from "earth", i.e. no context layer:
SS 5334, ... Late Hellenistic-Early Roman
Dumped fillings thrown in during second quarter of 1st c. B.C. containing mostly debris resulting from Sulla's sack in 86 B.C.
Agora XXIX, p. 464: Four fills distinguished during excavations ... but seemingly ... Late 2nd c. and early 1st c. B.C. POU; 110-75 B.C.