12/5/17 OPA-LOCKA, FLA. (WSVN) – The busiest mailing season of the year has begun, as U.S. Postal Service employees in Opa-locka prepare thousands of packages for shipment. USPS’ Royal Palm Processing and Distribution Center gave 7News a tour of the facility, where workers were seen sorting through packages. “Daily volume we have 500,000 to 750,000 […]