ML15230A236
| ML15230A236 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 09/03/2015 |
| From: | Chaput P NRC/NRO/DSEA/RHMB |
| To: | |
| Chaput P | |
| Shared Package | |
| ML15230A523 | List: |
| References | |
| Download: ML15230A236 (3) | |
Text
Braidwood Station, Units 1 and 2 Table 1. Current Design Basis Flood Hazards for Use in the MSA Mechanism Stillwater Elevation Waves/
Runup Reference Design Basis Hazard Elevation Local Intense Precipitation 601.9 ft MSL Not applicable 601.9 ft MSL FHRR Section 2.2.2 Failure of Dams and Onsite Water Control/Storage Structures No impact on the site identified No impact on the site identified No impact on the site identified FHRR Section 2.2.3 Streams and Rivers PMF on Mazon River 582.0 ft MSL 2.0 ft 584.0 ft MSL FHRR Section 2.2.2 PMF on Cooling Pond 598.2 ft MSL 4.1 ft 602.3 ft MSL FHRR Section 2.2.4 Storm Surge No impact on the site identified No impact on the site identified No impact on the site identified FHRR Section 2.2.5 Seiche No impact on the site identified No impact on the site identified No impact on the site identified FHRR Section 2.2.5 Tsunami No impact on the site identified No impact on the site identified No impact on the site identified FHRR Section 2.2.6 Ice-Induced Flooding Ice jam flooding - Near Intake 555.0 ft MSL Not applicable 555.0 ft MSL FHRR Section 2.2.7
Braidwood Station, Units 1 and 2 Table 1. Current Design Basis Flood Hazards for Use in the MSA Mechanism Stillwater Elevation Waves/
Runup Reference Design Basis Hazard Elevation Note: Reported values are rounded to the nearest one-tenth of a foot.
Channel Migrations/Diversions No impact on the site identified No impact on the site identified No impact on the site identified FHRR Section 2.2.8
Braidwood Station, Units 1 and 2 Table 2. Reevaluated Flood Hazards for Flood-Causing Mechanisms for Use in the MSA Mechanism Stillwater Elevation Waves/
Runup Reevaluated Hazard Elevation Reference 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.
Streams and Rivers 599.4 ft MSL 2.5 ft 601.9 ft MSL FHRR Table 4.4 PMF on Cooling Pond 594.3 ft MSL 1.5 ft 595.8 ft MSL FHRR Table 4.3 PMF on Mazon River 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.