ML16112A368

Enclosure to Indian Point Nuclear Generating Unit Nos. 2 and 3 MSFHI Letter

ML16112A368
Person / Time
Site:	Indian Point
Issue date:	04/29/2016
From:	Rivera-Lugo R F NRC/NRO/DSEA/RHMB
To:
References
Download: ML16112A368 (7)

Text

Indian Point Nuclear Generating Units 2 & 3Table 1. Current Design Basis Flood Hazards for Use in the MSAMechanismStillwater Elevation Waves/ RunupReferenceDesign Basis Hazard ElevationLocal Intense PrecipitationNot included in DBNot included in DBNot included in DBFlood Hazard Reevaulation Report (FHRR) Revision 2, Section 4.1.1Failure of Dams and Onsite Water Control/Storage Structures Streams and RiversProbable Maximum Flood (PMF) on the Hudson River12.7 ft NGVD291.0 ft13.7 ft NGVD29FHRR Revision 2, Section 2.3.1 and Table 4.1-1PMF with Low Tide on the Hudson River13.0 ft NGVD291.0 ft14.0 ft NGVD29FHRR Revision 2, Section 2.3.1 and Table 4.1-1PMF with High Tide on the Hudson River12.4 ft NGVD291.0 ft13.4 ft NGVD29FHRR Revision 2, Section 2.3.1 and Table 4.1-1Storm SurgeProbable Maximum Hurricane (PMH) with Spring High Tide on the Hudson River13.5 ft NGVD291.0 ft14.5 ft NGVD29FHRR Revision 2, Section 2.3.1 and Table 4.1-1Standard Project Hurricane and Standard Project Flood on the Hudson River13.0 ft NGVD291.0 ft14.0 ft NGVD29FHRR Revision 2, Section 2.3.1 and Table 4.1-1 Indian Point Nuclear Generating Units 2 & 3Table 1. Current Design Basis Flood Hazards for Use in the MSAMechanismStillwater Elevation Waves/ RunupReferenceDesign Basis Hazard ElevationNote 1: Reported values are rounded to the nearest one-tenth of a foot.SeicheNot included in DBNot included in DBNot included in DBFHRR Revision 2, Section 4.1.5TsunamiNot included in DBNot included in DBNot included in DBFHRR Revision 2, Section 4.1.6Ice-Induced FloodingNot included in DBNot included in DBNot included in DBFHRR Revision 2, Section 4.1.7Channel Migrations/DiversionsNot included in DBNot included in DBNot included in DBFHRR Revision 2, Section 4.1.8 Indian Point Nuclear Generating Units 2 & 3Table 2. Reevaluated Flood Hazards for Flood-Causing Mechanisms for Use in the MSAMechanismStillwater Elevation Waves/ RunupReevaluated Hazard ElevationReferenceLocal Intense Precipitation18.8 ft NGVD29Minimal18.8 ft NGVD29Letter dated August 18, 2014"Revised FLO-2D Analysis to Address the Current LIP Regarding the Flooding Aspects of Recommendations 2.1 of the Near-Term Task Force Review of the Insights from the Fukushima Dai-ichi Accident Indian Point Units Nos. 2 and 3." ADAMS Accession No.Unit 2 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U2-ABFP-218.8 ft NGVD29Minimal18.8 ft NGVD29Unit 2 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U2-ABFP-319.1 ft NGVD29Minimal19.1 ft NGVD29Unit 2 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U2-CB-118.3 ft NGVD29Minimal18.3 ft NGVD29Unit 3 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U3-ABFP-118.5 ft NGVD29Minimal18.5 ft NGVD29Unit 3 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U3-ABFP-218.6 ft NGVD29Minimal18.6 ft NGVD29Unit 3 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U3-ABFP-318.8 ft NGVD29Minimal18.8 ft NGVD29Unit 3 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U3-PAB-118.9 ft NGVD29Minimal18.9 ft NGVD29Unit 3 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U3-PAB-219.2 ft NGVD29Minimal19.2 ft NGVD29Unit 2 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U2-PAB-119.0 ft NGVD29Minimal19.0 ft NGVD29Unit 2 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U2-ABFP-119.2 ft NGVD29Minimal19.2 ft NGVD29Unit 3 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U3-CB-1 Indian Point Nuclear Generating Units 2 & 3Table 2. Reevaluated Flood Hazards for Flood-Causing Mechanisms for Use in the MSAMechanismStillwater Elevation Waves/ RunupReevaluated Hazard ElevationReferenceStreams and Rivers16.5 ft NGVD292.1 ft18.6 ft NGVD29FHRR Rev. 2 (12/9/2014) Sections 3.4.2.5.1, 3.4.2.5.2, and FHRR (Rev. 12/10/2015) Section 6.2.2Cool Season on Hudson River PMF with Snow Pack Coincident with 25-year Surge and 10% Exceedance High TideFailure of Dams and Onsite Water Control/Storage StructuresStorm Surge18.9 ft NGVD292.9 ft21.8 ft NGVD29Letter dated April 5, 2016 "Entergy Supplement to Basis for Performance of the Mitigating Strategies Assessment with the Flood Hazard Information and Report for Recommendations 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident" ADAMS Accession No.ML16104A041Combined Event with 150,000cfs Flow in Hudson River Coincident with the Probable Maximum Storm Surge (PMSS), Including Antecedent Water Level (AWL) and Coincident Wind-Generated Waves (CWGW) - ValuesReported in Open Water in River Outboard of River Bulkhead and U2 Intake Structure18.9 ft NGVD292.1 ft21.0 ft NGVD29Combined Event with 150,000 cfs Flow in Hudson River Coincident with PMSS, Including AWL and CWGW - Values Reported in Open Areas of Powerblock Yard Between U2 Intake Structure and U2 Turbine Building18.9 ft NGVD294.7 ft23.6 ft NGVD29Combined Event with 150,000 cfs Flow in Hudson River Coincident with PMSS, Including AWL and CWGW - Values Reported at River-facing Sides of Structures Between the River Bulkhead and the Turbine

Indian Point Nuclear Generating Units 2 & 3Table 2. Reevaluated Flood Hazards for Flood-Causing Mechanisms for Use in the MSAMechanismStillwater Elevation Waves/ RunupReevaluated Hazard ElevationReferenceStorm Surge18.9 ft NGVD29. ft. ft NGVD29Letter dated April 5, 2016 "Entergy Supplement to Basis for Performance of the Mitigating Strategies Assessment with the Flood Hazard Information and Report for Recommendations 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident" ADAMS Accession No.ML16104A041 Note 2: Reevaluated hazard mechanisms bounded by the current design basis (see Table 1) are not included in this tableNote 3: Reported values are rounded to the nearest one-tenth of a foot.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.

Indian Point Nuclear Generating Units 2 & 3Table 1. Current Design Basis Flood Hazards for Use in the MSAMechanismStillwater Elevation Waves/ RunupReferenceDesign Basis Hazard ElevationLocal Intense PrecipitationNot included in DBNot included in DBNot included in DBFlood Hazard Reevaulation Report (FHRR) Revision 2, Section 4.1.1Failure of Dams and Onsite Water Control/Storage Structures Streams and RiversProbable Maximum Flood (PMF) on the Hudson River12.7 ft NGVD291.0 ft13.7 ft NGVD29FHRR Revision 2, Section 2.3.1 and Table 4.1-1PMF with Low Tide on the Hudson River13.0 ft NGVD291.0 ft14.0 ft NGVD29FHRR Revision 2, Section 2.3.1 and Table 4.1-1PMF with High Tide on the Hudson River12.4 ft NGVD291.0 ft13.4 ft NGVD29FHRR Revision 2, Section 2.3.1 and Table 4.1-1Storm SurgeProbable Maximum Hurricane (PMH) with Spring High Tide on the Hudson River13.5 ft NGVD291.0 ft14.5 ft NGVD29FHRR Revision 2, Section 2.3.1 and Table 4.1-1Standard Project Hurricane and Standard Project Flood on the Hudson River13.0 ft NGVD291.0 ft14.0 ft NGVD29FHRR Revision 2, Section 2.3.1 and Table 4.1-1 Indian Point Nuclear Generating Units 2 & 3Table 1. Current Design Basis Flood Hazards for Use in the MSAMechanismStillwater Elevation Waves/ RunupReferenceDesign Basis Hazard ElevationNote 1: Reported values are rounded to the nearest one-tenth of a foot.SeicheNot included in DBNot included in DBNot included in DBFHRR Revision 2, Section 4.1.5TsunamiNot included in DBNot included in DBNot included in DBFHRR Revision 2, Section 4.1.6Ice-Induced FloodingNot included in DBNot included in DBNot included in DBFHRR Revision 2, Section 4.1.7Channel Migrations/DiversionsNot included in DBNot included in DBNot included in DBFHRR Revision 2, Section 4.1.8 Indian Point Nuclear Generating Units 2 & 3Table 2. Reevaluated Flood Hazards for Flood-Causing Mechanisms for Use in the MSAMechanismStillwater Elevation Waves/ RunupReevaluated Hazard ElevationReferenceLocal Intense Precipitation18.8 ft NGVD29Minimal18.8 ft NGVD29Letter dated August 18, 2014"Revised FLO-2D Analysis to Address the Current LIP Regarding the Flooding Aspects of Recommendations 2.1 of the Near-Term Task Force Review of the Insights from the Fukushima Dai-ichi Accident Indian Point Units Nos. 2 and 3." ADAMS Accession No.Unit 2 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U2-ABFP-218.8 ft NGVD29Minimal18.8 ft NGVD29Unit 2 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U2-ABFP-319.1 ft NGVD29Minimal19.1 ft NGVD29Unit 2 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U2-CB-118.3 ft NGVD29Minimal18.3 ft NGVD29Unit 3 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U3-ABFP-118.5 ft NGVD29Minimal18.5 ft NGVD29Unit 3 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U3-ABFP-218.6 ft NGVD29Minimal18.6 ft NGVD29Unit 3 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U3-ABFP-318.8 ft NGVD29Minimal18.8 ft NGVD29Unit 3 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U3-PAB-118.9 ft NGVD29Minimal18.9 ft NGVD29Unit 3 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U3-PAB-219.2 ft NGVD29Minimal19.2 ft NGVD29Unit 2 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U2-PAB-119.0 ft NGVD29Minimal19.0 ft NGVD29Unit 2 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U2-ABFP-119.2 ft NGVD29Minimal19.2 ft NGVD29Unit 3 Transformer Yard Doors Maximum Water-Surface Elevation - Door ID U3-CB-1 Indian Point Nuclear Generating Units 2 & 3Table 2. Reevaluated Flood Hazards for Flood-Causing Mechanisms for Use in the MSAMechanismStillwater Elevation Waves/ RunupReevaluated Hazard ElevationReferenceStreams and Rivers16.5 ft NGVD292.1 ft18.6 ft NGVD29FHRR Rev. 2 (12/9/2014) Sections 3.4.2.5.1, 3.4.2.5.2, and FHRR (Rev. 12/10/2015) Section 6.2.2Cool Season on Hudson River PMF with Snow Pack Coincident with 25-year Surge and 10% Exceedance High TideFailure of Dams and Onsite Water Control/Storage StructuresStorm Surge18.9 ft NGVD292.9 ft21.8 ft NGVD29Letter dated April 5, 2016 "Entergy Supplement to Basis for Performance of the Mitigating Strategies Assessment with the Flood Hazard Information and Report for Recommendations 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident" ADAMS Accession No.ML16104A041Combined Event with 150,000cfs Flow in Hudson River Coincident with the Probable Maximum Storm Surge (PMSS), Including Antecedent Water Level (AWL) and Coincident Wind-Generated Waves (CWGW) - ValuesReported in Open Water in River Outboard of River Bulkhead and U2 Intake Structure18.9 ft NGVD292.1 ft21.0 ft NGVD29Combined Event with 150,000 cfs Flow in Hudson River Coincident with PMSS, Including AWL and CWGW - Values Reported in Open Areas of Powerblock Yard Between U2 Intake Structure and U2 Turbine Building18.9 ft NGVD294.7 ft23.6 ft NGVD29Combined Event with 150,000 cfs Flow in Hudson River Coincident with PMSS, Including AWL and CWGW - Values Reported at River-facing Sides of Structures Between the River Bulkhead and the Turbine

Indian Point Nuclear Generating Units 2 & 3Table 2. Reevaluated Flood Hazards for Flood-Causing Mechanisms for Use in the MSAMechanismStillwater Elevation Waves/ RunupReevaluated Hazard ElevationReferenceStorm Surge18.9 ft NGVD29. ft. ft NGVD29Letter dated April 5, 2016 "Entergy Supplement to Basis for Performance of the Mitigating Strategies Assessment with the Flood Hazard Information and Report for Recommendations 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident" ADAMS Accession No.ML16104A041 Note 2: Reevaluated hazard mechanisms bounded by the current design basis (see Table 1) are not included in this tableNote 3: Reported values are rounded to the nearest one-tenth of a foot.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.