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The document (a rough draft) identifies the criteria by which a site for a new production reactor(s) would be selected. The location of the town will be governed either by the limit set by Reactor Safeguards Committee for reactor disaster or by the deposition of iodine 131 on vegetation, which ever is the greater. The document provides the general assumptions and the basis for establishing the potential radiation hazards, and general specifications for atmospheric concentration and vegetation contamination. The general conclusions are that the plant should be operated at a cooling time adequate to remove iodine 131 deposition on vegetation from status of principal hazard. Such cooling time is 80 to 100 days, and the town may then be 20 miles from the reactor and separations plant sites. Operation with an iodine 131 hazard may require restrictions on truck farming or animal grazing over a wide area. Other desirable features of the site are very briefly noted. The spacing of reactor units is discussed and general conclusions are noted. River activity criteria and general considerations for siting on lakes and rivers are noted. (MB)