ML16245A720

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MSFHI Tables Final 8-31-2016
ML16245A720
Person / Time
Site: Monticello Xcel Energy icon.png
Issue date: 09/16/2016
From: Richard Rivera-Lugo
NRC/NRO/DSEA/RHMB
To:
Rivera-Lugo R
Shared Package
ML16248A004 List:
References
CAC MF7712
Download: ML16245A720 (2)


Text

Monticello Nuclear Generating Plant, Unit 1 Table 1. Current Design Basis Flood Hazards for Use in the MSA Mechanism Stillwater Waves/ Design Basis Reference Elevation Runup Hazard Elevation Local Intense Precipitation Not included Not included Not included FHRR Section 1.5, 2.1.3 & Table 5 in DB in DB in DB Streams and Rivers Mississippi River Probable 939.2 ft Not 939.2 ft FHRR Section 1.5.1 Maximum Precipitation NGVD29 applicable NGVD29 Failure of Dams and Onsite Water Control/Storage Structures Not included Not included Not included FHRR Section 1.5 in DB in DB in DB Storm Surge Not included Not included Not included FHRR Section 1.5 in DB in DB in DB Seiche Not included Not included Not included FHRR Section 1.5 in DB in DB in DB Tsunami Not included Not included Not included FHRR Section 1.5 in DB in DB in DB Ice-Induced Flooding No Impact No Impact No Impact FHRR Section 1.5.2 on the Site on the Site on the Site Identified Identified Identified Channel Migrations/Diversions Not included Not included Not included FHRR Section 1.5 in DB in DB in DB Note 1: Reported values are rounded to the nearest one-tenth of a foot.

Monticello Nuclear Generating Plant, Unit 1 Table 2. Reevaluated Flood Hazards for Flood-Causing Mechanisms for Use in the MSA Mechanism Stillwater Waves/ Reevaluated Reference Elevation Runup Hazard Elevation Local Intense Precipitation 935.8 ft Minimal 935.8 ft FHRR Section 2.1.2 & Tables 5 and 6 NGVD29 NGVD29 Note 1: The licensee is expected to develop flood event duration parameters and applicable flood associated effects to conduct the MSA. The staff will evaluate the flood event duration parameters (including warning time and period of inundation) and flood associated effects during its review of the MSA.

Note 2: Reevaluated hazard mechanisms bounded by the current design basis (see Table 1) are not included in this table Note 3: Reported values are rounded to the nearest one-tenth of a foot.