Sandie Arnott is the San Mateo County Treasurer/Tax Collector and is a member of the Retirement Board by virtue of her office. She first began serving in this office in January 2011, but served as Assistant County Treasurer for many years during which she was also active on the Retirement Board. Her current term as Treasurer/Tax Collector will expire on December 31, 2026. Sandie is currently serving as Board Secretary.