The overall direction of the RIST study program rests with CERC. 

 The program was initiated by N.E. Taney, formerly of the CERC staff, with 

 the full cooperation and assistance of G. Magin, Jr., formerly with the 

 Division of Isotopes Development, U. S. Atomic Energy Commission. Since 

 November 1966, responsibility for the program direction has rested with 



D. B. Duane who succeeded N. E. Taney as Chief of the Geology Branch. 

 This report was prepared by D. B. Duane and C. W. Judge under the general 

 supervision of G. M. Watts, Chief of the Engineering Development Division. 



This report was prepared as part of Contract AT (U9-ll)-2988 (as 

 modified) between the Atomic Energy Commission and CERC. Other partici- 

 pants in this continuing multi-agency study are the Oak Ridge National 

 Laboratories of the Atomic Energy Commission; U. S. Navy Pacific Missile 

 Range; U. S. Air Force (Western Test Range, First Strategic Aerospace 

 Division); U. S. Army Corps of Engineers Los Angeles District office; NASA 

 (Nuclear Systems and Space Power Division) and the State of California 

 (Department of Water Resources). 



The authors wish to thank P. J. Mellinger and 0. M. Bizzell of the 

 Division of Isotope Development, Atomic Energy Commission; F. N. Case, 



E. H. Acree, and H. R. Brashear of the Oak Ridge National laboratory; 

 T. B. Kerr of the Nuclear Systems and Space Power Division, National 

 Aeronautics and Space Administration; R. R. Baray of the First Strategic 

 Aerospace Division, Vandenberg Air Force Base; M. M. Richman, U. S. Air 

 Force Western Test Range, Vandenberg Air Force Base; Colonel W. H. Lee, 

 U. S. Air Force Eastern Test Range, Patrick Air Force Base; E. Rhodes, 

 U. S. Navy Pacific Missile Range, Point Mugu, California; R. Angelos of 

 the Department of Water Resources, State of California; and Colonel James 

 Irvine, Jr., Corps of Engineers Western Area Office, Vandenberg Air Force 

 Base. Appreciation is particularly expressed to J. M. Bittner, T. A. 

 Bertin, and the various field crews and technical personnel of the Los 

 Angeles District without whose cooperation this project would not have 

 been possible. 



At the time of publication, Lieutenant Colonel Myron Dow Snoke was 

 Director of CERC; Joseph M. Caldwell was Technical Director. 



NOTE: Comments on this paper are invited. Discussion will be published 

 in the next issue of the CERC Bulletin. 



This report is published under authority of Public Law 166, 79th 

 Congress, approved July 31, 19^+5 > as supplemented by Public Law 172, 

 88th Congress, approved November 7, 1963. 



