According to a separation agreement obtained this week by NewCanaanite.com through a Freedom of Information Act request, a former assistant to the New Canaan High School athletic director had been overpaid $30,000 by the Board of Education during the 2015-16 academic year. Anne Tomaselli paid the school district back that money, under the agreement, and the Board of Ed accepted her resignation “in lieu of any proceedings” concerning the termination of her employment. The agreement also specified that she would not seek future employment with the schools. Many in town knew Tomaselli as ticket sales supervisor at Dunning Stadium. Asked how she came to be overpaid by $30,000, Superintendent of Schools Dr. Bryan Luizzi said in an email: “When the district moved payroll in-house, a stipend that was given 3 [times] a year for additional facility support in athletics at NCHS was miscoded as a recurring payment.