29.11.2014 Views

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

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

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

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

WIPP RH PSAR <strong>DOE</strong>/WIPP-03-3174 CHAPTER 5<br />

Table 5.1-10 HAZOP Accident Scenario Ranking Page 13 <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 />

NC-5<br />

Explosion<br />

followed by<br />

fire in the Hot<br />

Cell<br />

11D-2<br />

Prepare<br />

facility<br />

canister for<br />

disposal<br />

Explosion in<br />

the Hot Cell<br />

Potential for<br />

significant<br />

radioactive<br />

materials<br />

release<br />

4 4 Prevention: Welder removed; WAC -<br />

no flammable items in the drum, limits<br />

on gas generation; Vented drums and<br />

canister; Canister lid design; Limited<br />

storage.<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 />

NC-7 Seismic event 20-1<br />

Natural<br />

events<br />

Seismic event<br />

(Design Basis<br />

Earthquake)<br />

Potential for<br />

significant<br />

radioactive<br />

materials<br />

release<br />

4 3 Prevention: WHB (and certain<br />

equipment) designed for DBE; Crane,<br />

PAR, and Hot Cell and equipment in it<br />

is DBE qualified.<br />

Mitigation: HVAC system shutdown<br />

switch, Emergency response plan and<br />

teams; Recovery plan.<br />

NC-7 Seismic event 20-2<br />

Natural<br />

events<br />

Full facility<br />

fire<br />

Potential for<br />

significant<br />

radioactive<br />

materials<br />

release<br />

4 3 Prevention: Limited ignition sources.<br />

Mitigation: HVAC system shutdown<br />

switch; Fire loading/Combustible<br />

Control Program; Emergency response<br />

plan and teams; Recovery plan.<br />

NC8 Tornado 20-3<br />

Natural<br />

events<br />

Tornado event<br />

(Design Basis<br />

Tornado)<br />

Potential for<br />

significant<br />

radioactive<br />

materials<br />

release<br />

4 2 Prevention: WHB (and certain<br />

equipment) designed for DBT; Weather<br />

monitored by CMR; 10-160B cask is<br />

DBT qualified<br />

Mitigation: Emergency response plan<br />

and teams; Recovery plan.<br />

5.1-47 January 22, 2003

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!