The Sewer History Exhibit is owned by the AZ Water Assoc. (a Member Association of the Water Environment Federation). It is a traveling exhibit illustrating the evolutionary development (i.e., history) of sanitary sewers. Through the use of photographs, handouts of articles on either the design, installation or the maintenance of sewers, and physical specimens of old pipe and tools; the exhibit provides the opportunity to its viewers to learn about the over 5500 years of history involving sewers. For more information about the Exhibit, see sewerhistory.org or contact Jon Schladweiler at (520) 954-3754.