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

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Draft p. 3.10.1<br />

Issue<br />

401<br />

ALTERNATIVE DISPOSAL CONCEPTS<br />

The waste mix information provided in Figure 3.10.1 is confusing; (a) Zircaloy should'<br />

not be included in Mix 2; (b) it is not clear if Zircaloy hulls are mixed:with HLW subse-<br />

quent to reprocessing. (124)<br />

Response<br />

It is agreed that the presentation <strong>of</strong> waste mix information might be confusing. Zir-<br />

caloy hulls should not be considered as a part <strong>of</strong> the waste that would be disposed <strong>of</strong> in<br />

space. These hulls may contain a significant fraction <strong>of</strong> high-level and transuranic wastes<br />

which would,be disposed <strong>of</strong> through use <strong>of</strong> another alternative concept (e.g. the mined repos-<br />

itory). Alternatively, new processing technology would be needed to strip the high-level<br />

and transuranic waste from the Zircaloy so that these wastes could be reasonably disposed<br />

<strong>of</strong> using the space disposal concept.<br />

Draft p. 3.10.2<br />

Issue<br />

The last sentence in Section 3.10.1.1 should be modified to include cost considera-<br />

tions, if applicable. If cost was not considered, then the sentence should indicate that<br />

the conclusions refer to technical considerations only. (124)<br />

Response<br />

Cost considerations for the space disposal concept are discussed in Section 6.1.8.6,<br />

Cost Analysis, in the final Statement. Section 6.2 <strong>of</strong> the final Statement considers cost<br />

attributes in the comparative assessment <strong>of</strong>;the alternate concepts and the mined repository.<br />

Draft p. 3.10.9<br />

Issue<br />

Based on basic experience with the space program, it seems possible and highly desir-<br />

able to discuss the cost and natural resource utilization needed for this alternative along<br />

with other information for the upper stage operations presented on Page 3.10.9 (124)<br />

Response ...<br />

Cost'and resource utilization information has been included in Section 6.1.8 <strong>of</strong> the'<br />

final Statement. Due to the limited current state <strong>of</strong> development <strong>of</strong> the space disposal<br />

concept, this information applies to the overall concept and is not broken down for<br />

detailed elements <strong>of</strong> that concept.

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