ἐπίσταθμος
From LSJ
τὸ ἐγδοχῖον τοῦ ὕδατος καὶ τὰ ἐν τῆι πόλει ὑδραγώγια → the water reservoir and the conduits in the city (or on the acropolis)
English (LSJ)
ον,
A quartered on another, PPetr.3p.41 (iii B.C.); στρατιῶται SIG880.61 (Pizus, iii A.D.): neut. pl. as Subst., ἐπίσταθμα, τά, quarters, Poll.4.173. II. as Subst., ἐπίσταθμος, ὁ, quartermaster, satrap, Isoc.4.120; ἐ. Καρίας ib.162, cf. AB253. b. image placed at a door, Call.Epigr.26, dub. in POxy.2146.9 (iii A.D.). 2. = συμποσίαρχος, Plu.2.612c.