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- Acceptance...
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Results
Other: ML21196A076, ML22045A053, ML22111A314, ML22193A254, ML22349A148, RA-21-0307, Subsequent License Renewal Application Response to NRC Requests for Confirmation of Information - Set 1, RA-22-0023, Subsequent License Renewal Application - Response to NRC Requests for Confirmation of Information - Set 3, RA-22-0129, Subsequent License Renewal Application, Response to ONS SLRA 2nd Round RAI B4.1-3, RA-22-0137, Subsequent License Renewal Application Response to ONS SLRA Second Round RAI 4.6.1-1a, RA-22-0145, Subsequent License Renewal Application Response to NRC Requests for Confirmation of Information - RAI 3.5.2.2.2.6-L, RA-22-0158, Subsequent License Renewal Application - Response to ONS SLRA Second Round RAI B2.1.9-2a, RA-22-0160, Subsequent License Renewal Application: Responses to ONS SLRA - Second Round RAIs - Trp 76 (Irradiation Structural) - FE 3.5.2.2.2.6, RA-22-0192, Subsequent License Renewal Application Response to ONS SLRA Second Round RAI B2.1.7-4a
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MONTHYEARRA-21-0132, Application for Subsequent Renewed Operating Licenses. Part 7 of 82021-06-0707 June 2021 Application for Subsequent Renewed Operating Licenses. Part 7 of 8 Project stage: Request ML21158A1932021-06-0707 June 2021 Application for Subsequent Renewed Operating Licenses Project stage: Request ML21158A1952021-06-0707 June 2021 Application for Subsequent Renewed Operating Licenses. Part 2 of 8 Project stage: Request ML21196A0762021-07-23023 July 2021 Aging Management Audit Plan Regarding the Subsequent License Renewal Application Review Project stage: Other ML21271A5862021-09-21021 September 2021, 22 September 2021, 28 September 2021 SLRA - RAI B2.1.27-1 Project stage: Request ML21270A2492021-09-27027 September 2021 Beyond Nuclear and Sierra Club Hearing Request Project stage: Request ML21295A7182021-10-22022 October 2021 Applicant'S Answer Opposing Request for Hearing, Petition to Intervene, and Petition for Waiver Submitted by Beyond Nuclear and Sierra Club Project stage: Request ML21295A7172021-10-22022 October 2021 Notices of Appearance for Tracey M. Leroy, Paul M. Bessette, and Ryan K. Lighty on Behalf of Duke Energy Carolinas, LLC Project stage: Request RA-21-0281, Subsequent License Renewal Application, Response to NRC Request for Additional Information B2.1.27-12021-10-22022 October 2021 Subsequent License Renewal Application, Response to NRC Request for Additional Information B2.1.27-1 Project stage: Response to RAI RA-21-0249, Subsequent License Renewal Application Supplement 12021-10-28028 October 2021 Subsequent License Renewal Application Supplement 1 Project stage: Supplement ML21313A2342021-11-0404 November 2021 Attachment: Oconee SLRA - Final Requests for Confirmation of Information - Set 1 Project stage: Request ML21313A2322021-11-0404 November 2021 SLRA - Requests for Confirmation of Information - Set 1 Project stage: Request RA-21-0288, Subsequent License Renewal Application Supplement 22021-11-11011 November 2021 Subsequent License Renewal Application Supplement 2 Project stage: Supplement ML21327A2772021-11-23023 November 2021 SLRA - Requests for Additional Information (Set 1) + 2nd Round RAI B2.1.27-1a Project stage: Request RA-21-0307, Subsequent License Renewal Application Response to NRC Requests for Confirmation of Information - Set 12021-12-0202 December 2021 Subsequent License Renewal Application Response to NRC Requests for Confirmation of Information - Set 1 Project stage: Other RA-21-0316, Subsequent License Renewal Application Supplement 32021-12-15015 December 2021 Subsequent License Renewal Application Supplement 3 Project stage: Supplement RA-21-0325, Response to NRC Requests for Confirmation of Information - Set 22021-12-17017 December 2021 Response to NRC Requests for Confirmation of Information - Set 2 Project stage: Request RA-21-0332, Subsequent License Renewal Application Responses to NRC Request for Additional Information Set 1 and Second Round Request for Additional Information B2.1.27-1a2022-01-0707 January 2022 Subsequent License Renewal Application Responses to NRC Request for Additional Information Set 1 and Second Round Request for Additional Information B2.1.27-1a Project stage: Response to RAI ML22007A0152022-01-0707 January 2022 Subsequent License Renewal Application, Appendix E Responses to Requests for Additional Information (Rai), and Request for Confirmation of Information Project stage: Response to RAI ML22024A0052022-01-19019 January 2022 Breakout Questions - Scoping and Screening - Reactor Coolant System Project stage: Request ML22024A0592022-01-19019 January 2022 ONS - Electrical On-Site and OE Audit (Virtual) - Continued Project stage: Request ML22024A0032022-01-19019 January 2022 Breakout Questions - Fire Protection Scoping and Screening Project stage: Request ML22024A0042022-01-19019 January 2022 Breakout Questions - Scoping - Letdown Cooler Project stage: Request ML22024A0122022-01-19019 January 2022 Breakout Questions - Trp 14 - Buried Piping Project stage: Request ML22024A0212022-01-19019 January 2022 Breakout Questions - Trp 26 - Fire Protection Project stage: Request ML22024A0202022-01-19019 January 2022 Breakout Questions - Trp 21 - Closed Treated Water System Project stage: Request ML22024A0182022-01-19019 January 2022 Breakout Questions - Trp 19 - Steam Generators Project stage: Request ML22024A0162022-01-19019 January 2022 Breakout Questions - Trp 17 - Flow-Accelerated Corrosion Project stage: Request ML22024A0362022-01-19019 January 2022 Breakout Questions - Trp 60 - Fatigue Monitoring Project stage: Request ML22024A0402022-01-19019 January 2022 Breakout Questions - Trp 85 - No Aging Effects Project stage: Request ML22024A0422022-01-19019 January 2022 Breakout Questions - Trp 141 - Identification of TLAAs Project stage: Request ML22024A0462022-01-19019 January 2022 Breakout Questions - Trp 143.2 - Non-Class 1 Fatigue Analyses Project stage: Request ML22024A0482022-01-19019 January 2022 Breakout Questions - Trp 143.3 - EAF - Min Project stage: Request ML22024A0492022-01-19019 January 2022 Breakout Questions - Trp 143.9 - Cycle Projections Project stage: Request ML22024A0562022-01-19019 January 2022 Breakout Questions - Trps 142.1 and 149.13 - Fluence Project stage: Request ML22024A0022022-01-19019 January 2022, 20 January 2022, 21 January 2022 SLRA - Audit Report - Audit Questions Transmitted to Duke Energy Project stage: Request ML22024A0062022-01-20020 January 2022 Breakout Questions - Structural Scoping and Screening Project stage: Request ML22024A0082022-01-20020 January 2022 Breakout Questions - Trp 2 - Water Chemistry Project stage: Request ML22024A0092022-01-20020 January 2022 Breakout Questions - Trp 3 - RPV Closure Head Studs Project stage: Request ML22024A0102022-01-20020 January 2022 Breakout Questions - Trp 10 - Boric Acid Corrosion Project stage: Request ML22024A0152022-01-20020 January 2022 Breakout Questions - Trp 17 - FAC (Continued) Project stage: Request ML22024A0332022-01-20020 January 2022 Breakout Questions - Trp 45 - Masonry Walls Project stage: Request ML22024A0342022-01-20020 January 2022 Breakout Questions - Trp 46 - Structures Monitoring Project stage: Request ML22024A0352022-01-20020 January 2022 Breakout Questions - Trp 47 - Water Control Structures Project stage: Request ML22024A0372022-01-20020 January 2022 Breakout Questions - Trp 74 - Concrete Project stage: Request ML22024A0392022-01-20020 January 2022 Breakout Questions - Trp 77 - Corrosion Structural Project stage: Request ML22024A0412022-01-20020 January 2022 Breakout Questions - Trp 140 - Secondary Shield Wall Tendon Surveillance Project stage: Request ML22024A0432022-01-20020 January 2022 Breakout Questions - Trp 142.03 - PTS Project stage: Request ML22024A0512022-01-20020 January 2022 Breakout Questions - Trp 149.4 - LBB Project stage: Request ML22024A0552022-01-20020 January 2022 Breakout Questions - Trps 62 and 145 - Tendon Prestress Project stage: Request 2021-12-02
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Category:Audit Report
MONTHYEARML23219A1402023-10-10010 October 2023 Audit Report Proposed Alternative to Use ASME Code Case N-752, Risk Informed Categorization and Treatment for Repair/Replacement Activities in Class 2 and 3 Systems XI, Division 1 ML22193A2542022-08-0505 August 2022 SLRA - Audit Report ML22046A0882022-03-11011 March 2022 Audit Summary Report in Support of the License Amendment Request for One-Time Note to Technical Specification 3.7.7, Low Pressure Service Water (LPSW) System ML22045A0532022-02-14014 February 2022 SLRA - Audit Report ML22024A0522022-01-21021 January 2022 Breakout Questions - Trp 149.11 - Rvi Ductility ML22024A0532022-01-21021 January 2022 Breakout Questions - TRP149.12, 149.2, 149.3 ML22024A0382022-01-21021 January 2022 Breakout Questions - Trp 76 - Irradiated Conc Steel ML22024A0172022-01-20020 January 2022 Breakout Questions - Trp 18 - Bolting Integrity ML22024A0222022-01-20020 January 2022 Breakout Questions - Trp 27 - Fire Water System (Continued) ML22024A0432022-01-20020 January 2022 Breakout Questions - Trp 142.03 - PTS ML22024A0412022-01-20020 January 2022 Breakout Questions - Trp 140 - Secondary Shield Wall Tendon Surveillance ML22024A0392022-01-20020 January 2022 Breakout Questions - Trp 77 - Corrosion Structural ML22024A0372022-01-20020 January 2022 Breakout Questions - Trp 74 - Concrete ML22024A0352022-01-20020 January 2022 Breakout Questions - Trp 47 - Water Control Structures ML22024A0342022-01-20020 January 2022 Breakout Questions - Trp 46 - Structures Monitoring ML22024A0332022-01-20020 January 2022 Breakout Questions - Trp 45 - Masonry Walls ML22024A0322022-01-20020 January 2022 Breakout Questions - Trp 44 - Appendix J ML22024A0302022-01-20020 January 2022 Breakout Questions - Trp 42 - ASME XI, Subsection Iwl ML22024A0292022-01-20020 January 2022 Breakout Questions - Trp 41 - IWE ML22024A0232022-01-20020 January 2022 Breakout Questions - Trp 27 - Fire Water System ML22024A0152022-01-20020 January 2022 Breakout Questions - Trp 17 - FAC (Continued) ML22024A0512022-01-20020 January 2022 Breakout Questions - Trp 149.4 - LBB ML22024A0552022-01-20020 January 2022 Breakout Questions - Trps 62 and 145 - Tendon Prestress ML22024A0142022-01-20020 January 2022 Breakout Questions - Trp 16 - PWR Internals ML22024A0572022-01-20020 January 2022 Breakout Questions - Trps 149.5 and 23 - Crane and Inspection of Load Handling ML22024A0102022-01-20020 January 2022 Breakout Questions - Trp 10 - Boric Acid Corrosion ML22024A0092022-01-20020 January 2022 Breakout Questions - Trp 3 - RPV Closure Head Studs ML22024A0082022-01-20020 January 2022 Breakout Questions - Trp 2 - Water Chemistry ML22024A0062022-01-20020 January 2022 Breakout Questions - Structural Scoping and Screening ML22024A0362022-01-19019 January 2022 Breakout Questions - Trp 60 - Fatigue Monitoring ML22024A0162022-01-19019 January 2022 Breakout Questions - Trp 17 - Flow-Accelerated Corrosion ML22024A0032022-01-19019 January 2022 Breakout Questions - Fire Protection Scoping and Screening ML22024A0042022-01-19019 January 2022 Breakout Questions - Scoping - Letdown Cooler ML22024A0052022-01-19019 January 2022 Breakout Questions - Scoping and Screening - Reactor Coolant System ML22024A0212022-01-19019 January 2022 Breakout Questions - Trp 26 - Fire Protection ML22024A0122022-01-19019 January 2022 Breakout Questions - Trp 14 - Buried Piping ML22024A0202022-01-19019 January 2022 Breakout Questions - Trp 21 - Closed Treated Water System ML22024A0182022-01-19019 January 2022 Breakout Questions - Trp 19 - Steam Generators ML22024A0402022-01-19019 January 2022 Breakout Questions - Trp 85 - No Aging Effects ML22024A0422022-01-19019 January 2022 Breakout Questions - Trp 141 - Identification of TLAAs ML22024A0462022-01-19019 January 2022 Breakout Questions - Trp 143.2 - Non-Class 1 Fatigue Analyses ML22024A0482022-01-19019 January 2022 Breakout Questions - Trp 143.3 - EAF - Min ML22024A0492022-01-19019 January 2022 Breakout Questions - Trp 143.9 - Cycle Projections ML22024A0562022-01-19019 January 2022 Breakout Questions - Trps 142.1 and 149.13 - Fluence ML22024A0592022-01-19019 January 2022 ONS - Electrical On-Site and OE Audit (Virtual) - Continued ML21323A1132021-11-23023 November 2021 Subsequent License Renewal Environmental Review Requests for Additional and Subsequent Information - Letter ML20266G2192020-11-0303 November 2020 Regulatory Audit Report Regarding License Amendment Request to Revise the Licensing Basis for High Energy Line Breaks Outside of the Containment Building ML18197A2012018-07-25025 July 2018 Staff Review of Spent Fuel Pool Evaluation Associated with Reevaluated Seismic Hazard Implementation Near- Task Force Recommendation 2.1: Seismic ML18117A2702018-05-0101 May 2018 Summary of Regulatory Audit in Support of License Amendment Request No. 2017-03 ML16067A2912016-03-21021 March 2016 Report of Regulatory Audit Regarding License Amendment Request for Alternate Fission Gas Gap Release Fractions (CAC Nos. MF6480 - MF6486) 2023-10-10
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Text
Oconee Nuclear Station, Units 1, 2, and 3, Subsequent License Renewal Application (SLRA)
TRP 026: Fire Protection
- SLRA SLRA Question / Issue Why are we asking?
Section Page 1 2.3, 3.3 2-163, GALL-SLR Item VII.G.A-789, SRP Item 3.3- The NRC staff is seeking 3-778 1, 255 identifies the aging effects for fire clarification on the materials of damper assemblies as loss of material due construction of the fire damper to general, pitting, crevice corrosion; assemblies and the applicable cracking due to SCC; hardening, loss of aging affects for the fire damper strength, shrinkage due to elastomer assemblies.
degradation. The term fire damper assembly includes both the frame and the damper as evidenced by the aging effects requiring management as cited in GALL-SLR Item VII.G.A-789, SRP Item 3.3-1, 255.
For example, hardening and loss of strength would not be applicable aging effects if the intent of the GALL-SLR were to only manage aging effects associated with housings, which are typically constructed of steel materials.
SLRA Table 2.3.3.5-3 refers to damper housing and SLRA Table 3.3.2-29 cites GALL-SLR Item VII.G.A-789, SRP Item 3.3-1, 255 for managing loss of material for the galvanized steel, steel, and stainless steel damper housing by the Fire Protection program.
The NRC staff notes that damper assemblies is used in SLRA section B2.1.15.
Please state the material of construction for the fire damper assemblies other than the
housing that perform their intended isolation function in the closed position and the basis for why the aging effects cited in GALL-SLR Item VII.G.A-789, SRP Item 3.3-1, 255 are not applicable to portions of the fire damper assembly other than the housing.
2 3.5 3-504, SLR-ISG-2021-02-Mechanical, Updated The NRC staff is seeking 3- Aging Management Criteria for Mechanical clarification on the AMR item 1453 Portions of Subsequent License Renewal used for fire barriers -
Guidance (Agencywide Documents Access penetration seals.
and Management System (ADAMS)
Accession No. ML20181A434) added AMR Items VII.G.A-805, VII.G.A-806, and VII.G.A-807 to Table VII.G in NUREG-2191, Generic Aging Lessons Learned for Subsequent License Renewal (GALL-SLR)
Report, and Table 3.3-1 in NUREG-2192, Standard Review Plan for Review of Subsequent License Renewal Applications for Nuclear Power Plants. The aging effects for cementitious coatings, silicates, and subliming compounds used as fireproofing/fire barriers exposed to air are loss of material, change in material properties, cracking/delamination, and separation.
SLRA Table 3.3.1 states that AMR items 3.3.1-267 and 3.3.1-268 are not used and are addressed under AMR item 3.3.1-269.
SLRA Table 3.5.2-23 cites AMR item 3.3.1-269 for fire barriers - penetration seals (cerafiber bulk, cerafiber blanket, cerafoam, pyrocrete, mineral wool, 3M Putty). AMR
item 3.3.1-269 is for silicates used as fireproofing/fire barriers.
3M Putty would be considered a subliming compound which is the specific fireproofing/fire barrier material for AMR item 3.3.1-267. In addition, Pyrocrete would be considered a cementitious coating which is the specific fireproofing/fire barrier material for AMR item 3.3.1-268.
Please discuss the basis for using the silicates AMR item for cementitious coatings and subliming compounds.
3 3.3 3- AMR item 3.3.1-060 is cited for grout fire The NRC staff is seeking 1454 barriers - penetration seals. However, this clarification on the use of AMR item is for reinforced concrete industry standard note A for structural fire barriers: walls, ceilings and grout fire barriers - penetration floors. Industry standard note A is cited seals.
which is Consistent with NUREG-2191 item for component, material, environment, and aging effect. AMP is consistent with NUREG-2191 AMP.
Please discuss the use of industry standard note A.
4 B2.1.15 B-120 Section 4.5 in Revision 1 of SLR-ONS- The purpose of this question is AMPR-XI.M26 states, Inspections that do to ensure consistency with not meet acceptance criteria are referred to monitoring and trending and the Corrective Action Program. Under the corrective actions program Corrective Action Program, the results of the elements of AMP XI.M26 in inspections of the aging effects of cracking GALL-SLR.
and loss of material on fire barrier penetration seals, fire barriers, fire damper assemblies, and fire doors are subject to trending, as appropriate, to provide for timely
detection of aging effects so that the appropriate corrective actions can be taken.
Following review of SLRA Section B2.1.15 and Revision 1 of SLR-ONS-AMPR-XI.M26, it is unclear to the NRC staff if trending of inspection results is performed outside of the corrective action program for instances where results are not entered into the corrective action program.
The corrective actions program element of AMP XI.M25 in GALL-SLR states, If any projected inspection results will not meet acceptance criteria prior to the next scheduled inspection, inspection frequencies are adjusted as determined by the sites corrective action program. However, neither SLRA Section B2.1.15 nor Revision 1 of SLR-ONS-AMPR-XI.M26 discuss adjusting inspection frequencies based on projected inspection results not meeting acceptance criteria.
Please clarify whether inspection results not entered into the corrective action program are trended, and whether inspection frequencies are adjusted based on project inspection results not meeting acceptance criteria.
5 3.5 3- SLRA Table 2.4.1-1 and SLRA Table 3.5.2-1 The NRC staff is seeking 1354 cite a fire barrier intended function for the clarification on programs other following components: than the Fire Protection program managing aging effects
- Concrete Elements (Accessible) associated with the fire barrier
- Concrete Elements (Inaccessible) intended function.
SLRA Table 2.4.2-1 and SLRA Table 3.5.2-2 cite a fire barrier intended function for concrete cylinder walls.
SLRA Table 2.4.3-1 and SLRA Table 3.5.2-3 cite a fire barrier intended function for accessible and inaccessible concrete elements.
However, the Fire Protection program is not credited to manage the aging affects for any of these components.
It is unclear to the NRC staff whether the programs credited to manage the applicable aging effects are capable of ensuring the fire barrier intended function is maintained during the subsequent period of extended operation. Specifically, it is unclear whether the inspections and acceptance criteria for the credited programs are equivalent to those in the Fire Protection program; the credit programs perform inspections on the same frequency as required by the Fire Protection program; and the credited programs procedures have been updated, if necessary, to ensure the fire barrier intended function is maintained during the subsequent period of extended operation.
6 2.4, 3.5 2-340, In several sections (2.4.1, 2.4.3, 2.4.7.4, The NRC staff is seeking 3- 2.4.7.5, 2.4.7.6, and 2.4.7.7) of the SLRA it clarification on fire stops, fire 1451 states, in part, fire barriers (fire seals, fire wraps, and coatings.
stops, fire wraps, coatings) are addressed as bulk commodities in Section 2.4.8.
However, SLRA Section 2.4.8, including Table 2.4.8-2, and SLRA Table 3.5.2-23 include only Fire Barriers - Penetration Seals and Seismic Gap Filler Material as the components with a fire barrier function.
Please discuss where fire stops, fire wraps, and coatings are identified and addressed, and the AMR items for managing applicable aging effects.
7 Section 7.1 of MP/3/A/1705/018, Fire The NRC staff is seeking Protection - Penetration - Fire And Flood clarification on requirements Barrier - Inspection And Minor Repair, when fire barriers may be states that penetrations/barriers may be inaccessible.
located in elevated radiation areas and other similar penetrations where both sides area accessible can be inspected. In addition, this section states that the Cerafiber cloth/blanket in the RPS/ES cabinets cannot be inspected due to the configuration.
Are there requirements on when a direct visual inspection must be performed for these instances?
8 Enclosure 9.2 of MP/3/A/1705/018 states The NRC staff is seeking that Fiber Board or Fiber Blanket are held in clarification on materials used for place with secure methods such as threaded securing fire wraps.
thru-rods, stainless tie wire, etc.
Section 6.1 of EPRI 3002013084, Long-Term Operations: Subsequent License Renewal Aging Effects for Structures and Structural Components (Structural Tools),
November 2018, states, in part, wire and other appurtenances used to secure fire
wrap to the item being protected - is considered to be part of the fire wrap itself.
Please identify the materials used for securing fire wraps and where they are addressed, including AMR items for managing applicable aging effects.