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Management of Commercially Generated Radioactive Waste - U.S. ...

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5.92<br />

dose commitments are less than one-tenth <strong>of</strong> the 2.8 x 108 man-rem that the exposed popula-<br />

tion would receive over the same time period from naturally occurring sources. The relatively<br />

low population doses that might result if the event occurred indicates that the solution min-<br />

ing event would not constitute a significant societal risk.(a)<br />

(a) Other assessments <strong>of</strong> a solution mining event have been made in which different assumptions<br />

<strong>of</strong> repository size and amount <strong>of</strong> radionuclides reaching culinary salt were made.<br />

In particular the leaching was limited by the solubility <strong>of</strong> the uranium content <strong>of</strong> the<br />

waste. The contaminated salt was calculated to be distributed among 15 million persons.<br />

The 70-year dose to an individual for this event in a spent fuel repository<br />

amounted to 2.3 rem. This dose is about a factor <strong>of</strong> 6 higher than in the above analysis,<br />

but would also result in population doses less than those from naturally occurring<br />

sources.

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