By Potomac Local News – December 10, 2013 7:13 pm Leave a Comment “Vaca” was last seen on Dec. 6 on Birchdale Avenue in Dale City. He is a small black and white pappillion mix. Please contact 703-944-8622 or 571-282-8836. Have Something to Say? Click here to cancel reply. You must be logged in to post a comment.