The following meetings are held at City Hall, 54 Hill Street, unless otherwise noted. Thursday, Oct. 3 Purchasing - Bids, 3 p.m., City Hall Room 104. Board of Ethics, 7 p.m., City Hall Room 104. Friday, Oct. 4 Valley Transit District, 8:30 a.m., VTD, 41 Main St., Derby. Tuesday, Oct. 8 SEDC Executive Board, 8 a.m., SEDC, 475 Howe Ave. SEDC Board of Directors quarterly meeting, 8:30 a.m., SEDC, 475 Howe Ave. Housing Authority Commission, 5:30 p.m., Sinsabaugh Heights Shelton. Library Board, 6:30 p.m., Plumb Memorial Library, 65 Wooster St. Officers\u2019 Council, 7 p.m., Company 5, 2 School St. Naugatuck Valley Health District Board of Directors, 7 p.m., Valley Health District, 98 Bank St., Seymour. Planning & Zoning Commission, 7 p.m., City Hall auditorium. Wednesday, Oct. 9 WPCA, 7 p.m., City Hall Room 305. Thursday, Oct. 10 Inland Wetlands & Watercourses Commission, 7 p.m., City Hall Room 303. Full Board of Aldermen, 7 p.m., City Hall auditorium. Friday, Oct. 11 Planning & Zoning Downtown Subcommittee, 9 a.m., SEDC, 475 Howe Ave. Naugatuck Valley Council of Governments, 10 a.m., NVCOG, 49 Leavenworth St., Suite 303, Waterbury.