This article presents a joint discussion on the planning, financing, and operations of the San Joaquin Reservoir, which was presented at the 1965 AWWA California Section meeting at San Francisco, California. Topics and their presenters are as follows: Conception and Financing, by Frank Huqhes of the Irvine Company, Irvine, California; and, Operations, by A. Gene Rheault of James M. Montgomery, Consulting Engineers, Inc., Pasadena, California.