A well about 2.00m. SE of the Tholos precinct wall. The presence of the water-clock strengthens the probability, suggested by its location, that the well served one of the public buildings in the neared ... Ca. 410-390 B.C ... The lower fill seems pure period of use; mostly water-vessels, with a few bits that fell in by mistake. The upper contrasts sharply with the "canonical" late 5th c. fill; very scrappy; very limited variety of shapes.