Built against the south wall of the annex to the Poros Building
west of the Areopagus. At the west the upper layer of marble chips carried against it, the lowest were cut by it.
Part of same system as ... 225-100 B.C.
Cistern with two tunnels, the one entering its neck cut off by an early Roman well, the other, at the bottom not excavated.
Chamber conical in shape, with a depressed draw basin in the center of the floor ... Early Roman-3rd c. B.C.