Original issue, US Army Technical Manual, 306 pages, size is 8 1/4" x 10 3/4", stapled, three hole punched, dated 30 August 1984.  This not a commercial copy or print but an original issue government print issued in 1984.  This publication is titled - TM 5-660, Maintenance and Operation of Water Supply, Treatment, and Distribution Systems.  Publication is designed to information and instructions for the real property operation and maintenance for the maintenance and operation of water supply, treatment and distributions systems.  Very well illustrated using tables, charts, photographs and detailed and clear line drawings.