James and Judy Goumas of Abingdon, Md., announce the engagement of their daughter, Juliana Goumas of Mount Prospect, Ill., to Kirk T. Lentz of Niles, Ill., the son of Virginia Lentz of Garrettsville and the late Allen E. Lentz. The bride-elect is a graduate of Mount Prospect High School and earned her bachelors degree at the University of Colorado in Boulder and her masters degree at Roosevelt University in Chicago, Ill. She is employed by Mount Prospect High School. Her fianc attended James A. Garfield High School and graduated from Orange High School. He earned his bachelors degree at Northwestern University in Evanston, Ill., and his masters degree at National-Louis University in Illinois. He is also employed by Mount Prospect High School. A wedding date has been set for July 12 in Lincolnshire, Ill.