Allocation of radiological instruments was based on a computer simulation of a Community Shelter Program (CSP) posture. This simula tion combined for the first time data consisting of National Shelter Survey (NSS) data, the Bureau of the Census 1970 count of home base ments, the 1970 residential population, the CRP-2B hypothetical nuclear »ttack, and geographical coordinates for each of 42,000 Standard Loca tion Areas (SLAs) throughout the United States. This detailed data base allowed the estimation of the number of NSS facilities and spaces occupied within a specified radius frori a given SLA. The allocations of radiological instruments for th*. CSP mode were based on a shelter posture in which all NSS shelters in the home SLA and empty NSS spaces in adjoining SLAs within a 1-mile radium could be occupied. Home basements were shared, with up to 50 people per basement, in areas where there were insufficient NSS shelter spaces. Aboveground NSS spaces and those with a protection factor (PF) less than 40 were not used in SLAs in which the blast overpressure from the CRP-2B attack would be 2 psl or greater. In this posture, 31% of the U.S. population was sheltered in NSS shelters, 60Z in home base ments, and 9Z in neither. Of 36 million home basements, approximately one million were shared with nonresidents. Only 18Z of the total NSS shelter spaces were utilized because of the elimination of aboveground •paces In risk areas and the 1-mlle distance restriction. Occupied NSS shelters were categorized by waiter of occupants to provide a basis for Instrument allocation. Thirty-seven percent of the occupied NSS shelters had less than 50 occupant? each, and six percent had an average occupancy of about: 2300.

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This report was prepared as an account of work sponsored by an agency of t h e United States Government. Neither t h e United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of t h e United States Government or any agency thereof. DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document.

FOREWORD This document is a compilation of material describing the U.S. Department of Energy (DOE) involvement in the second Federal Radiological Emergency Response Plan (FRERP) Field Exercise. This exercise took place in June 1987 at the Zion Nuclear Power Station, Zion, Illinois. Participants in the exercise, which was held to test the FRERP, included the utility (Commonwealth Edison Company), the states of Illinois and Wisconsin, and federal agencies. This material has been compiled to provide a record of the activity and to assist those planning future DOE exercises and responses. This report is not intended to serve as the evaluation report for the exercise. An evaluation of the exercise and recommendations for improvements in the federal response can be found in Federal Radio logical Emergency Response Plan (FRERP) Field Exercise Report, Vol. I,

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