Drug Take-Back Day The Mount Vernon Police Department is having a drug take-back event at Mount Vernon City Hall. This is an opportunity to properly dispose of unused medication. Share This Page: Date Apr 27 2019 Expired! Time 10:00 am - 2:00 pm Location Mount Vernon City Hall - Mount Vernon, Iowa 213 First Street NW Category Neighborhood Organizer Mount Vernon Police Department Phone 319-895-6141