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

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92<br />

CONSEQUENCE ANALYSIS<br />

Note the assumption that "no accidental release <strong>of</strong> radioactive material is postulated<br />

for shipments <strong>of</strong> plutonium oxide." (154)<br />

Response<br />

If a future national policy decision leads to the reprocessing <strong>of</strong> spent fuel and the<br />

recovery <strong>of</strong> PuO 2, PuO 2 will not be considered a nuclear waste but a resource.<br />

The impacts <strong>of</strong> handling PuO2 have been considered by the Department and its predeces-<br />

sor agencies in other environmental statements (ERDA 1976a) and by the Nuclear Regulatory<br />

Commission in its proceedings on GESMO (NRC 1976a). Further consideration <strong>of</strong> the impacts<br />

<strong>of</strong> Pu02 storage and transportation would be covered in any reopening <strong>of</strong> the GESMO proceed-<br />

ings. Recognizing the in-place mechanisms to ensure radiological safety and safeguards, no<br />

credible accidental release <strong>of</strong> PuO 2 was envisioned.<br />

Draft p. 3.1.212<br />

Issue<br />

On p. 3.1.212 is the apotheosis <strong>of</strong> this EIS approach to risk. It is asserted that in<br />

case <strong>of</strong> theft or sabotage, the risk to society will be small if any <strong>of</strong> the contributing<br />

probabilities or consequence are small. This is a revealing claim. Just such logic has<br />

always been used in evaluation nuclear risks over the last 20 years. What is implicitly<br />

being asserted is that no matter how large the consequences <strong>of</strong> a particular event may be,<br />

if the probability is sufficiently small the risk to society is negligble. It may be that<br />

society should take that view, but those who believe in it should be prepared to <strong>of</strong>fer jus-<br />

tification (including definitions <strong>of</strong> "small" and <strong>of</strong> what constitutes an appropriate estima-<br />

tion procedure). (40)<br />

Response<br />

The definition <strong>of</strong> risk used in this Statement is the probability <strong>of</strong> an event times the<br />

consequences <strong>of</strong> that event. Using this definition, events with relatively large conse-<br />

quences and small probabilities have low risk. Mathematically low risk level is not meant<br />

to imply risk acceptability. This is an issue to be decided in the regulatory and public<br />

hearing process. The revised Statement format includes a section on the discussion <strong>of</strong> risk<br />

perspective. See Section 3.4 for comments on risk.<br />

Draft Appendix I<br />

Issue<br />

Appendix I discusses the possibility <strong>of</strong> release <strong>of</strong> radionuclides to the biosphere<br />

through groundwater mass transport. The impression given is that container life will be

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