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

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Draft p. 3.1.113, Table 3.1.9<br />

Issue<br />

181<br />

WASTE MANAGEMENT OPERATIONS<br />

There is a considerable difference (in the case <strong>of</strong> salt) in the amount <strong>of</strong> storage<br />

between fuel cycles. (154)<br />

Response<br />

As explained in Appendix K and Sections 5.3.1.1 and 5.3.2.1 <strong>of</strong> the final Statement,<br />

the difference is due to the plutonium content <strong>of</strong> the wastes. <strong>Waste</strong>s containing increased<br />

amounts <strong>of</strong> plutonium (spent fuel and uranium-only recycle waste) have increased long-term<br />

heat generation that can adversely affect the salt formation. For this reason, the amounts<br />

<strong>of</strong> this type <strong>of</strong> waste that may be stored in a salt formation is restricted.<br />

Draft pp. 3.1.116, 117, 120<br />

Issue<br />

There appears to be a contradiction between Tables 3.1.14 and 3.1.11. In Table 3.1.14<br />

the average dust concentrations at a salt repository are higher for reprocessing waste than<br />

for spent fuel, whilst in granite, shale, and basalt, the reverse is indicated. However,<br />

from Table 3.1.11 less salt is mined per MTHM for reprocessing waste, whereas for the other<br />

three rock media, more rock is mined for reprocessing waste. In any event the concentra-<br />

tions <strong>of</strong> salt at the reference site are less than that in seaside air. (154)<br />

Response<br />

This apparent contradiction has been corrected in the final Statement (see<br />

Section 5.4).<br />

Draft pp. 3.1.115-136<br />

Issue<br />

No discussion <strong>of</strong> the hydrologic design criteria <strong>of</strong> the surface facilities is given.<br />

If the site is to be designed to withstand the probable maximum flood, so state and discuss.<br />

If not, discuss the consequences <strong>of</strong> the flood more severe than the design criteria.<br />

(208-NRC)<br />

Response<br />

As per 10 CFR 1022, facilities are not to be built on flood plains. The base flood<br />

plain is the 100-year flood and the critical flood plain is the 500-year flood.

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