In what country ,thought to be the location of Washukanni  is Tell Halaf
Tell Halaf Tell Halaf (Arabic: تل حلف‎ ‎ ) is an archaeological site in the Al Hasakah governorate of northeastern Syria, near the Turkish border, just opposite Ceylanpınar. It was the first find of a Neolithic culture, subsequently dubbed the Halaf culture, characterized by glazed pottery painted with geometric and animal designs. The site, which dates to the 6th millennium BCE, was a Hittite ruling city at first and was later the location of the Aramaean city-state of Guzana or Gozan in the 10th century BCE. By the end of 9th century BCE the city and its surrounding area was incorporated into the Assyrian Empire. During the Syrian Civil War, People's Protection Units took control of the area.
Lake Dukan Lake Dukan (or Lake Dokan) (Central Kurdish: دەریاچەی دووکان‎ ) is the largest lake in Iraqi Kurdistan. It is located close to the city of Ranya, and is a reservoir on the Little Zab created by the construction of the Dukan Dam. The Dukan Dam was built between 1954 and 1959 as a multi-purpose dam to provide water storage, irrigation and hydroelectricity. Prior to the flooding of Lake Dukan, the area has been subjected to archaeological research to investigate as many archaeological sites as possible. An archaeological survey in the Ranya Plain documented some 40 archaeological sites with evidence for occupation ranging from the sixth millennium BCE up to the present. Five of these sites were then excavated: Tell Bazmusian, ed-Dem, Kamarian, Qarashina and Tell Shemshara. The excavations at Tell Bazmusian revealed a temple dating to the second millennium BCE. At Tell Shemshara, an early-sixth millennium BCE village was excavated, as well as an early-second millennium BCE palace with a small archive of clay tablets. The inhabitants of some 50 villages in the flooded area, around 1,000–1,200 families, were resettled to the west of the lake.