ML15240A362
| ML15240A362 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde, Yankee Rowe |
| Issue date: | 09/28/2015 |
| From: | Quinn-Willingham L NRC/NRO/DSEA/RHMB |
| To: | |
| Quinn-Willingham L | |
| Shared Package | |
| ML15268A417 | List: |
| References | |
| TAC MF5546, TAC MF5547, TAC MF5548 | |
| Download: ML15240A362 (3) | |
Text
Palo Verde - Units 1, 2, & 3 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 Unit 1 955.5 ft NGVD29 Minimal 955.5 ft NGVD29 FHRR Section 2.2.1 Unit 2 952.5 ft NGVD29 Minimal 952.5 ft NGVD29 FHRR Section 2.2.1 Unit 3 949.5 ft NGVD29 Minimal 949.5 ft NGVD29 FHRR Section 2.2.1 Failure of Dams and Onsite Water Control/Storage Structures 900.0 ft NGVD29 Not applicable 900.0 ft NGVD29 FHRR Section 2.2.3 Streams and Rivers Winters Wash (at Cross Section AA) 956.4 ft NGVD29 5.6 ft 962.0 ft NGVD29 FHRR Section 2.2.2 FHRR Table 2-2 East Wash (at Cross Section G2) 978.8 ft NGVD29 4.0 ft 982.8 ft NGVD29 FHRR Section 2.2.2 FHRR Table 2-2 Gila River 776.0 ft NGVD29 Not applicable 776.0 ft NGVD29 FHRR Section 2.2.2 Centennial Wash 888.0 ft NGVD29 Not applicable 888.0 ft NGVD29 FHRR Section 2.2.2 Hassayampa River 942.0 ft NGVD29 Not applicable 942.0 ft NGVD29 Email from Michael Dilorenzo, APS to Juan Uribe, NRC,
Subject:
"Palo Verde Flood Hazard Reevaluation Report" (ADAMS Accession No. ML15266A226
Palo Verde - Units 1, 2, & 3 Table 1. Current Design Basis Flood Hazards for Use in the MSA Mechanism Stillwater Elevation Waves/
Runup Reference Design Basis Hazard Elevation Note 1: Reported values are rounded to the nearest one-tenth of a foot.
Storm Surge No Impact on the Site Identified No Impact on the Site Identified No Impact on the Site Identified FHRR Section 2.2.4 Seiche 45-Acre Reservoir 951.0 ft NGVD29 Not applicable 951.0 ft NGVD29 FHRR Section 2.2.6 85-Acre Reservoir 951.0 ft NGVD29 Not applicable 951.0 ft NGVD29 FHRR Section 2.2.6 Evaporation Ponds 937.0 ft NGVD29 Not applicable 937.0 ft NGVD29 FHRR Section 2.2.6 Tsunami No Impact on the Site Identified No Impact on the Site Identified No Impact on the Site Identified FHRR Section 2.2.4 Ice-Induced Flooding No Impact on the Site Identified No Impact on the Site Identified No Impact on the Site Identified FHRR Section 2.2.4 Channel Migrations/Diversions No Impact on the SIte Identified No Impact on the Site Identified No Impact on the Site Identified FHRR Section 2.2.5
Palo Verde - Units 1, 2, & 3 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.
Local Intense Precipitation 957.7 ft NGVD29 Minimal 957.7 ft NGVD29 Staff Assessment Unit 1 955.0 ft NGVD29 Minimal 955.0 ft NGVD29 Staff Assessment Unit 2 952.4 ft NGVD29 Minimal 952.4 ft NGVD29 Staff Assessment Unit 3 Note 1: The licensee is expected to develop flood event duration parameters and applicable flood associated effects to conduct the MSA consistent with the guidance. The NRC staff has reviewed information related to flood event duration parameters (including warning time and period of inundation).