38 © The Containment of Underground Nuclear Explosions Figure 3-2—Minimum Shot Separation for Drill Hole Tests Ye depth of burial Yucca flats Diagram to approximate scale Scaleillustration of the minimum separation distance (1/2 depth of burial) for vertical drill hole tests. The depth of burial is based on the maximum credible yield. SOURCE: Office of Technology Assessment, 1989 To confirm the accuracy of the geologic description and review and evaluate containment considerations, the Survey also attends the host laboratory's site proposal presentation to the Containment Evaluation Panel. CONTAINMENT EVALUATION PANEL Oneconsequenceof the Baneberry review was the restructuring of what was then called the Test Evaluation Panel. The panel was reorganized and new members with a wider range of geologic and hydrologic expertise were added. The new panel was named ,the Containment Evaluation Panel (CEP); and their first meeting was held in March, 1971. The Containment Evaluation Panel presently consists of a Chairman and up to 11 panel members. Six of the panel members are representatives from Lawrence Livermore National Laboratory, Los Alamos National Laboratory, Defense Nuclear Agency, Sandia National Laboratory, U.S. Geological Survey, and the Desert ResearchInstitute. An additional3 to 5 members are also included for their expertise in disciplines related to containment. The chairman of the panel is appointed by the Manager of Nevada Operations (Department of Energy), and panel members are nominated by the memberinstitution with the concurrenceof the chairman and approval of the Manager. The panel reports to the Managerof Nevada Operations. Practices of the Containment Evaluation Panel have evolved throughoutthe past 18 years: however, their purpose, as described by the Containment