Waste management operations. Final environmental impact statement

Releases to the atmosphere in 1975 resulted in a calculated dose commitment to a surrounding population of 668,000 within a 100-km radius of 115 man-rem, or about 0.15 percent of the dose to the same population from natural background radiation. From releases to the Savannah River via onsite streams in 1975, the calculated dose commitment to a water consumer population of 70,000 was 15.5 man-rem, or about 0.2 percent of the dose to this population from natural background radiation. From all SRP releases in 1975, the calculated whole-body dose to a hypothetical individual who resided at the plant boundary and consumed river water and 0.5 lb of river fish per week was 1.2 mrem, or 1.0 percent of the estimated 120-mrem dose from natural background radiation in the vicinity of the site. The most significant potential effect of plant waste storage operations is the exposure of offsite individuals to radiation doses from combinations of highly unlikely accidents and failures of backup protective devices. Using pessimistic assumptions, the potential dose to a hypothetical individual on the Savannah River just downstream from the plant was calculated to be a whole body dose of 3.9 rem. The emergency dose guideline for the evaluation of power reactors given in 10 CFR 100 is 25 rem to the whole body. The potential dose to an individual at the plant boundary from atmospheric dispersion after an accident was calculated to be a bone dose of 161 rem. The emergency guideline bone dose given in the design criteria for new plutonium facilities is 150 rem