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 Scale illustration of the minimum separation distance (1/2 dapth of burial) for vertical driff hole tests. The depth of burial is based on the maximum credible yield. SOURCE: Office of Tecnnology 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. Six of the panel members are representatives fron Lawrence Livermore National Laboratory, Los Alamo Nationa! Laboratory, Defense Nuclear Agency, San dia Nationa! Laboratory, U.S. Geological Survey CONTAINMENT EVALUATION PANEL 5 members are also included for their expertise i disciplines related to containment. The chairman c the panel is appointed by the Manager of Nevad Operations (Department of Energy). and pane members are nominated by the memberinstitutio with the concurrence of the chairman and approv: of the Manager. The panel reports to the Managerc Nevada Operations. One consequenceof 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 Pane! presently consists of a Chairman and up to 11 panel members. and the Desert Research [nstitute. An adcitional 3t Practices of the Containment Evaluation Pane have evolved throughoutthe past 18 years; howeve their purpose, as described by the Containmer