The cistern, cut within a natural bedrock-hewn cave, was elliptical and had a bell-shaped cross-section (length 5.8 m, width 2.5–4.0 m, depth 2 m). Its floor and walls were coated with a layer of hydraulic plaster (thickness 0.14 m).


A round aperture (L21; diam. 1.1 m, height 1.5 m) was hewn in the ceiling, at the northwestern end of the cistern. It was located beneath soil fill and blocked with large stones. The plaster floor (L24) in the cistern was overlaid with a gray soil fill and medium and large stone collapse. The cistern, devoid of any datable artifacts, was in use over a very long time.