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

WIPP RH PSAR DOE/WIPP-03-3174 CHAPTER 1
Table 1.3-1
MEI Risk Evaluation Guidelines
Description
Estimated Annual
Frequency of
Occurrence
Description
Radiological
Guidelines
Nonradiological
Guidelines
Normal
operations
1 $ f >10 -1
Anticipated 10 -1 $ f $ 10 -2 Incidents that may occur
several times during the
lifetime of the facility.
(Incidents that commonly
occur)
Unlikely 10 -2 $ f > 10 -4 Accidents that are not
anticipated to occur during
the lifetime of the facility.
Natural phenomena of this
class include: Uniform
Building Code-level
earthquake, 100-year flood,
maximum wind gust, etc.
# 2.5 rem
(25 mSv)
# 6.5 rem
(65 mSv)
ERPG-1
ERPG-1
Extremely
Unlikely
10 -4 $f > 10 -6 Accidents that will probably
not occur during the life
cycle of the facility.
# 25 rem
(250 mSv)
ERPG-2
Beyond
Extremely
Unlikely
10 -6 $ f All other accidents. No Guidelines No Guidelines
1.3-24 January 24, 2003