Image: 2004.01.1567 (HAT 53-62): Room 2 of the Civic Offices. Middle Stoa terrace wall in background. In center, stone cover slabs of east branch of Great Drain; over them, a pressure pipe line. Beyond the tile covering over Drain 4 is the older line of Drain 4 and an open channel, #13. All drains are located under the Hellenistic pavement of the Agora.