All that area within a line commencing at the intersection of Campbell Road (Avenue) and the Schenectady city line; thence clockwise along Campbell Road to Route 5S; thence due northeast to the Glenville-Rotterdam town line; thence easterly along the town line to the Schenectady city line; thence clockwise along the Schenectady city line to Route 7; thence westerly along Route 7 to the Schenectady city line; thence clockwise along the Schenectady city line to the beginning point.