May be of Hellenistic origin when cistern system went out of use.
For a general note on the cistern see Nb. ΟΕ III, pp. 246 ff.
Objects from B 586 various depths (no subdivision): S 2324-S 2330,
P 34894, ... Late 2nd-early 6th c. A.D.
Well in Cistern to West of Tholos. Well. Tholos Trench J; To West of Tholos ... Β-13 2496, 2497 Β:1937.0602:1 N 3414 Β:1937.0607:1 N 3415 Β:1937.0607:2 Β:1937.0607:3 Β:1937.0607:4 N 3416 Β:1937.0607:5 Β:1937.0607:6 Β:1937.0607:7 Β:1937.0611:1 Β:1937.0611:2 Β:1937.0611:3 Β:1937.0611:4 ... 1st half 1st B.C.