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

WIPP RH PSAR DOE/WIPP-03-3174 APPENDIX C
Table 2- 10-160B HAZOP Table
Study Node
Event No.
Deviation Causes Consequences Existing Safeguards Actions Total Rank
(Cons., Freq)
Radiological Rank
(Cons.,Freq)
Comments
10BF-1
While lifting
the drum, drop
drum in the Hot
Cell
Human error;
Equipment
failure (sling)
Potential for
onsite and offsite
consequences;
Potential for
spread of
contamination;
Potential for drum
breach (drop on
top of other
drum).
Training and Procedures;
Facility design;
Ventilation systems;
CAMs; Emergency Response
Procedure;
Preventive Maintenance
Program on crane; Crane
design;
Frequent crane inspections;
Shield door closed in the CUR;
Shield plug in Hot Cell is in
place; Shield door crane
interlocks mitigate direct
radiation exposure and/or
spread of contamination.
NAI 4,4 Facility Worker -
1,4
Onsite Worker - 4,4
Offsite - 4,4
Radiological
Hazard Only
10C-1 Higher than
expected
contamination
found on swipe
- mishandling
by RCT
Human error;
Equipment
failure
(Glovebox leak)
Potential for
spread of
contamination;
Potential for
facility worker
exposure.
Training and procedure;
Glove box design;
Inspection of gloves;
Preventive Maintenance
Program on Glovebox.
NAI 2,4 Facility Worker -
2,4
Onsite Worker -
NA
Offsite - NA
Radiological
Hazard Only
10D-1 Radiation
exposure
during the
process of
taking swipes
or glove box
operations
Glovebox
interlock failure
Worker exposure
to Hot Cell via
glovebox.
Interlocks prevent opening
both doors (on Glovebox
drawer) at the same time;
Glovebox design;
Training and procedures;
Glovebox not in normal
streaming path.
NAI 2,4 Facility Worker -
2,4
Onsite Worker -
NA
Offsite - NA
Radiological
Hazard Only
10D-2 Pinch points in
glovebox,
hands in
glovebox,
operator opens
the gallery side
shield plug
Human error;
Maintenance
activity
Potential for
personnel injury.
Pressure pad (Hot
Cell/Glovebox controls)
interlock with shield plug;
Training and procedures;
Preventive Maintenance
Program on Glovebox;
Configuration of equipment
controls.
NAI 1,4 NA Industrial
Hazard Only
C-51