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DOE 2000. - Waste Isolation Pilot Plant - U.S. Department of Energy

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WIPP RH PSAR <strong>DOE</strong>/WIPP-03-3174 APPENDIX C<br />

Table 2- 10-160B HAZOP Table<br />

Study Node<br />

Event No.<br />

Deviation Causes Consequences Existing Safeguards Actions Total Rank<br />

(Cons., Freq)<br />

Radiological Rank<br />

(Cons.,Freq)<br />

Comments<br />

9-12 High Radiation<br />

- Direct<br />

radiological<br />

exposure<br />

Worker<br />

inadvertently<br />

enters the crane<br />

maintenance<br />

room while Hot<br />

Cell is in<br />

operation and<br />

opens the shield<br />

door<br />

Potential for<br />

facility worker<br />

exposure<br />

(minimal) from<br />

Hot Cell<br />

Training and procedures;<br />

Facility design (no streaming<br />

path).<br />

NAI NA NA Comment:<br />

Worker can<br />

physically enter<br />

Crane<br />

Maintenance<br />

Room during<br />

operation<br />

without<br />

exposure with<br />

Crane<br />

Maintenance<br />

Room shield<br />

door closed, but<br />

would typically<br />

enter the Crane<br />

Maintenance<br />

Room during<br />

abnormal<br />

operations or for<br />

routine<br />

preventive<br />

maintenance (no<br />

waste in Hot<br />

Cell).<br />

No exposure<br />

from Hot Cell<br />

due to Interlock<br />

with crane<br />

maintenance<br />

shield door on<br />

high radiation<br />

monitor in Hot<br />

Cell.<br />

C-48

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