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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 CHAPTER 5<br />

Table 5.1-10 HAZOP Accident Scenario Ranking Page 9 <strong>of</strong> 13<br />

Accident Scenario # Node Deviation Consequence Qualitative<br />

Consequence<br />

Ranking<br />

(Table 5.1-6)<br />

Qualitative<br />

Frequency<br />

Ranking<br />

(Table 5.1-4)<br />

Prevention/Mitigation<br />

NC3-D<br />

LOC<br />

Confinement<br />

in the WHB<br />

5CE-1<br />

Unload the<br />

cask in the<br />

CUR<br />

Drum carriage<br />

dropped while<br />

lifting due to<br />

carriage<br />

getting caught<br />

and over<br />

stressing<br />

fixture or<br />

basket in the<br />

CUR<br />

Potential for<br />

significant<br />

radioactive<br />

materials<br />

release<br />

4 4 Prevention: PM Program on crane;<br />

Fixture design; Drum carriage design;<br />

Crane design.<br />

Mitigation: Procedures and Training;<br />

Ventilation system; Shield door crane<br />

interlock; Emergency response<br />

procedure.<br />

NC3-D<br />

LOC in the<br />

WHB<br />

12E-1<br />

facility<br />

canister<br />

transfer to<br />

shuttle car<br />

in Transfer<br />

Cell<br />

Drop the<br />

loaded facility<br />

canister into<br />

the Transfer<br />

Cell<br />

Potential for<br />

significant<br />

radioactive<br />

materials<br />

release<br />

4 4 Prevention: PM Program on crane;<br />

Guide tubes; Shuttle car design; Impact<br />

limiter on floor.<br />

Mitigation: Procedures and Training;<br />

Ventilation system; Emergency<br />

response procedure.<br />

NC3-E<br />

LOC in the<br />

WHB<br />

10A-1<br />

Unload<br />

carriage<br />

units in Hot<br />

Cell<br />

Puncture drum<br />

in the Hot<br />

Cell with PAR<br />

manipulator<br />

Potential for<br />

significant<br />

radioactive<br />

materials<br />

release<br />

4 4 Prevention: PM Program on PAR<br />

manipulator; Crane design; Facility<br />

design.<br />

Mitigation: Procedures and Training;<br />

Ventilation system; CAMs; Emergency<br />

response procedure; Shield plug in Hot<br />

Cell is in place; Shield door crane<br />

interlock.<br />

5.1-43 January 22, 2003

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