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Category:Letter
MONTHYEARML24019A2012024-01-19019 January 2024 Fourth 10-Year Interval, Second Period Owners Activity Report Number 1R24 ML24019A1362024-01-18018 January 2024 Inservice Inspection Request for Information ML24012A2452024-01-12012 January 2024 Response to Request for Additional Information to Proposed Method to Manage Environmentally Assisted Fatigue for the Pressurizer Surge Line ML24010A1532024-01-10010 January 2024 Information Request for the Cybersecurity Baseline Inspection, Notification to Perform Inspection ML23341A0062023-12-21021 December 2023 Project Manager Assignment IR 05000528/20230112023-12-18018 December 2023 License Renewal Inspection Report 05000528/2023011 ML23335A0782023-11-30030 November 2023 Independent Spent Fuel Storage Installation - Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation ML23325A1602023-11-17017 November 2023 Supplemental Submittal - Relief Request 70 Proposed Alternatives for Pressurizer Lower Shell Temperature Nozzle IR 05000528/20234032023-11-13013 November 2023 NRC Security Inspection Report 05000528 2023403, 05000529 2023403, 05000530 2023403 (Full Report) ML23311A2082023-11-0909 November 2023 Reassignment of U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch IV ML23299A3052023-10-26026 October 2023 Response to Request for Additional Information Relief Request 70 Proposed Alternatives for Pressurizer Lower Shell Temperature Nozzle IR 05000528/20230032023-10-17017 October 2023 Integrated Inspection Report 05000528 2023003 and 05000529 2023003 and 05000530 2023003 ML23270B9232023-09-28028 September 2023 Notification of Age-Related Degradation Inspection (05000528/2024012, 05000529/2024012, and 05000530/2024012) and Request for Information ML23251A2332023-09-13013 September 2023 Notification of Post Approval Site Inspection for License Renewal and Request for Information Inspection (05000528/2023011) ML23241B0182023-09-13013 September 2023 Use of Honeywell Mururoa V4F1 and MTH2 Supplied Air Suits within Respiratory Protection Program IR 05000528/20243012023-09-0606 September 2023 Notification of NRC Initial Operator Licensing Examination 05000528/2024301; 05000529/2024301; 05000530/2024301 IR 05000528/20230102023-08-22022 August 2023 Biennial Problem Identification and Resolution Inspection Report 05000528/2023010, 05000529/2023010 and 05000530/2023010 IR 05000528/20230052023-08-21021 August 2023 Updated Inspection Plan for Palo Verde Nuclear Generating Station, Units 1, 2, and 3 (Report 05000528/2023005 and 05000529/2023005 and 05000530/2023005) ML23222A2762023-08-10010 August 2023 Independent Spent Fuel Storage Installation, Registration of Dry Spent Fuel Transportable Storage Canister Identification Numbers AMZDFX175 and AMZDFX176 and Vertical Concrete Cask Identification Numbers AMZDNE175, and AMZDNE176 ML23199A2942023-08-0909 August 2023 Issuance of Amendment Nos. 221, 221, and 221, to Revise Technical Specifications to Adopt TSTF-107, Separate Control Rods That Are Untrippable Versus Inoperable IR 05000528/20230022023-08-0808 August 2023 Integrated Inspection Report 05000528/2023002 and 05000529/2023002 and 05000530/2023002 ML23207A2482023-07-26026 July 2023 License Renewal Pressurizer Surge Line Inspection ML23188A1872023-07-0707 July 2023 Fourth 10-Year Interval, Second Period Owners Activity Report Number 2R24 ML23166B0832023-07-0505 July 2023 Independence Spent Fuel Storage Installation - Issuance of Exemption ML23181A1602023-06-30030 June 2023 2 to Updated Final Safety Analysis Report, and Revision 3 to Operations Quality Assurance Program Description ML23180A2222023-06-29029 June 2023 Application to Revise Technical Specifications (TS) 3.5.1, Safety Injection Tanks (Sits) - Operating, TS 3.5.2, Safety Injection Tanks (Sits) - Shutdown, and TS 3.6.5, Containment Air Temperature ML23181A0772023-06-29029 June 2023 Program Review - Simulator Testing Methodology ML23157A1292023-06-0101 June 2023 Annual Report of Guarantee of Payment of Deferred Premium ML23144A3722023-05-24024 May 2023 Response to Regulatory Issue Summary (RIS) 2023-01, Preparation and Scheduling of Operator Licensing Examinations ML23143A3912023-05-23023 May 2023 Independent Spent Fuel Storage Installation - Request for Exemption from NAC-MAGNASTOR Certificate of Compliance 72-1031 - Cask Lid Batch 3 Design Requirements ML23145A2772023-05-17017 May 2023 10-PV-2023-05 Post-Exam Comments ML23132A3392023-05-12012 May 2023 Application to Revise Technical Specifications 3.3.11 to Adopt TSTF-266-A, Revision 3, Eliminate the Remote Shutdown System Table of Instrumentation and Controls IR 05000528/20230012023-05-0808 May 2023 and Independent Spent Fuel Storage Installation - Integrated Inspection Report 05000528/2023001 and 05000529/2023001 and 05000530/2023001 and 07200044/2023001 ML23128A0692023-05-0808 May 2023 Notification of Biennial Problem Dentification and Resolution Inspection and Request for Information ML23122A1822023-04-29029 April 2023 Transmittal of Technical Specification Bases Revision 76 ML23122A1912023-04-29029 April 2023 Unit 1 Core Operating Limits Report Revision 32, Unit 2 Core Operating Limits Report Revision 25, Unit 3 Core Operating Limits Report Revision 31 ML23116A2772023-04-26026 April 2023 Independent Spent Fuel Storage Installation, Annual Radioactive Effluent Release Report 2022 ML23115A4012023-04-26026 April 2023 Review of the 2022 Steam Generator Tube Inspections During Refueling Outage 23 ML23115A4982023-04-25025 April 2023 2022 Annual Environmental Operating Report IR 05000528/20230122023-04-19019 April 2023 Notification of Commercial Grade Dedication Inspection (05000528/2023012, 05000529/2023012, and 05000530/2023012) and RFI ML23108A0342023-04-18018 April 2023 NRC Initial Operator Licensing Examination Approval 05000528/2023301; 05000529/2023301; 05000530/2023301 ML23103A4642023-04-13013 April 2023 Annual Radiological Environmental Operating Report 2022 ML23103A4312023-04-13013 April 2023 Emergency Core Cooling System Performance Evaluation Models, 10 CFR 50.46(a)(3)(ii) Annual Report for 2022 IR 05000528/20224012023-04-13013 April 2023 Cyber Security Inspection Report 05000528/2022401 and 05000529/2022401 and 05000530/2022401 ML23102A3292023-04-12012 April 2023 Application for Authorized Use of Mururoa Single-Use, Supplied Air Suits, Models V4F1 and MTH2 ML23102A3242023-04-12012 April 2023 Supplement to Application to Revise Technical Specifications to Adopt TSTF-107-A, Separate Control Rods That Are Untrippable Versus Inoperable ML23089A4002023-03-30030 March 2023 Consolidated Decommissioning Funding Status Report - 2022 ML23088A4012023-03-30030 March 2023 Project Manager Assignment IR 05000528/20234022023-03-29029 March 2023 and 3 - NRC Security Inspection Report 05000528-2023402, 05000529-2023402, and 05000530-2023402, (Cover Letter Only) ML23080A3002023-03-21021 March 2023 Present Levels of Financial Protection 2024-01-19
[Table view] Category:Licensee Response to Notice of Violation
MONTHYEARML13169A2542013-06-13013 June 2013 Reply to Notice of Violation ML1106701692011-02-28028 February 2011 NRC Problem Identification and Resolution Inspection Report 05000528-10-008, 05000529-10-008, 05000530-10-008, and Notice of Violation, Dated January 28, 2011 ML1007701002010-03-11011 March 2010 NRC Integrated Inspection Report 05000528-09-005, 05000529-09-005, and 05000530-09-005, and Notice of Violation, Dated February 9, 2010 IR 05000528/20090062009-04-20020 April 2009 NRC Problem Identification and Resolution, and Confirmatory Action Letter (CAL-4-07-004) Follow-Up Inspection Reports 05000528/2009006, 05000529/2009006, 05000530/2009006 & Notice of Violation, Dated March 20, 2009 ML0912101112009-04-20020 April 2009 NRC Problem Identification and Resolution, and Confirmatory Action Letter (CAL-4-07-004) Follow-Up Inspection Reports 05000528/2009006, 05000529/2009006, 05000530/2009006 & Notice of Violation, Dated March 20, 2009 ML0703900402007-01-24024 January 2007 APS Response to NRC Inspection Report 05000528/2006012; 05000529/2006012; 05000530/2006012 ML0633205382006-11-16016 November 2006 Response to NRC Followup Supplemental Inspection Report; 05000528/2006010, 05000529/2006010; 05000530/2006010 ML0632503432006-11-14014 November 2006 APS Response to NRC Inspection Report 05000528-06-011, 05000529-06-011, & 05000530-06-011 ML0612804242006-04-28028 April 2006 EA-05-051 - Palo Verde, Revision to the Reply to Notice of Violation, and Statement as to Payment of Civil Penalty ML0613001822006-04-27027 April 2006 Revision to Reply to Notice of Violation; EA-04-221 ML0701703862006-01-0909 January 2006 APS Response to NRC Inspection Report 05000528-06-012; 05000529-06-012; 05000530-06-012 ML0517301092005-06-0707 June 2005 Reply to a Notice of Violation, EA-05-051, and Statement as to Payment of Civil Penalty ML0516602782005-06-0707 June 2005 Reply to Notice of Violation; EA-04-221 ML0506305532005-02-24024 February 2005 Response to 10CFR50.59 Findings in NRC Special IR 05000528-04-014; 05000529-04-014; 05000530-04-014 ML18192B5031978-07-21021 July 1978 Referring to Inspection Conducted on 4/10-14/1978, Which Identified One Infraction as a Notice of Violation. Response to This Notice Is Recorded on Attachment a 2013-06-13
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10 CFR 2.201 EA-11-006 A':AO A subsidiaryof Pinnacle West CapitalCorporation Dwight C. Mims Mail Station 7605 Palo Verde Nuclear Senior Vice President Tel. 623-393-5403 P.O. Box 52034 Generating Station Regulatory Affairs and Oversight Fax 623-393-6077 Phoenix, Arizona 85072-2034 102-06326-DCM/DFH February 28, 2011 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001
Reference:
Palo Verde Nuclear Generating Station Units 1, 2 and 3 NRC Problem Identification and Resolution Inspection Report 05000528/2010008, 05000529/2010008, 05000530/2010008, and Notice of Violation, dated January 28, 2011
Dear Sirs:
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Units 1, 2 and 3 Docket Nos. STN 50-528, 50-529, and 50-530 Reply to Notice of Violation EA-11-006 In the above referenced letter to Arizona Public Service (APS), the NRC identified that APS failed to correct a water intrusion path to the Unit 2 motor termination boxes for the emergency diesel generator fuel oil transfer pumps and implement adequate corrective actions to preclude repetition.
Pursuant to the requirements of 10 CFR 2.201 and Notice of Violation (NOV) EA-1 1-006, attached to the above referenced letter, APS hereby submits its reply to the NOV. to this letter contains a restatement of the violation. Enclosure 2 contains the APS reply to the NOV.
No commitments are being made to the NRC by this letter.
A member of the STDARS (Strategic Teaming and Resource Sharing) Alliance ZZ7rJII-.
Callaway
- Diablo Canyon - Palo Verde - San Onofre - South Texas - Wolf Creek i
ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Reply to Notice of Violation EA-1 1-006 Page 2 If you have any questions, please contact Marianne Webb, Regulatory Affairs, Compliance Section Leader, at (623) 393-5730.
Sincerely, DCM/MNW/DFH/gat
Enclosures:
- 1. Restatement of Notice of Violation EA-1 1-006
- 2. Reply to Notice of Violation EA-1 1-006 cc: E. E. Collins Jr. NRC Region IV Regional Administrator J. R. Hall NRC NRR Senior Project Manager - (electronic / paper)
L. K. Gibson NRC NRR Project Manager (electronic / paper)
M. A. Brown NRC Senior Resident Inspector for PVNGS
Enclosure 1 Restatement of Notice of Violation EA-1 1-006 During an NRC inspection conducted on November 29, 2010 through December 17, 2010, a violation of NRC requirements was identified. In accordance with NRC enforcement policy, the violation is listed below:
10 CFR Part 50, Appendix B, Criterion XVI, "Corrective Action" requires, in part, that measures shall be established to assure that conditions adverse to quality are promptly identified and corrected. In the case of significant conditions adverse to quality, the measures shall assure that the cause of the condition is determined and corrective action taken to preclude repetition.
Contrary to the above, from April 2009 through September 2010, the licensee failed to correct a significant condition adverse to quality and implement adequate corrective actions to preclude repetition. Specifically, the licensee failed to correct a water intrusion path to the Unit 2 motor termination boxes for the emergency diesel generator fuel oil transfer pumps, resulting in degraded electrical connections and a pump trip.
This Notice of Violation is associated with a Green Significance Determination Process finding.
I
Enclosure 2 Reply to Notice of Violation EA-1 1-006 Arizona Public Service (APS) concurs with the violation. The NRC Integrated Inspection Report 05000528/2010008, 05000529/20109008, and 05000530/2010008, noted that APS failed to restore compliance of the Unit 2 emergency diesel generator fuel oil transfer pumps (DFOTP) within a reasonable time after the previous violation was identified in NCV 05000529/2009-004-002.
The investigation concluded that the previous investigation did not recognize the possibility for water to flow inside the control cable's outer jacket to cause an electrical fault inside the motor termination box of the DFOTP.
The Reason For The Violation The cause for failing to take adequate actions to correct the water intrusion path to the Unit 2 motor termination box for the emergency diesel generator fuel oil transfer pump (DFOTP) was that the investigation from the previous event did not identify an internal water path through a degraded cable outer jacket to the motor termination box. Subsequent investigation determined that the probable cause for the degradation of the cable outer jacket which allowed the water path to develop was the presence of an unknown chemical contaminant on the cable jacket. Corrective actions from the previous investigation focused on an electrical short to ground inside the motor termination box as a result of moisture and corrosion inside the motor termination box. The moisture source was thought to have been caused by water traveling through the conduit around the cables installed in the conduit. The previous investigation did not recognize the possibility for water to flow inside of the control cable's outer jacket to the motor termination box.
The Corrective Steps That Have Been Taken And The Results Achieved As an immediate corrective action, the two conductor control cables and three conductor power cables from the cable pull boxes in the DFOTP vault to the motor termination boxes for the six site DFOTPs were replaced. The control and power cables were spliced to interrupt the drain path through the cable outer jacket around the cables and prevent possible future water drainage into the motor termination box. Additionally, boroscopic examinations were performed for the accessible sections of cable between the diesel building and the DFOTP 1
Enclosure 2 Reply to Notice of Violation EA-1 1-006 vault. This section of cable for the Unit 2 train A DFOTP was replaced due to the degraded condition of its outer jacket. No additional cables in the areas inspected boroscopically needed to be replaced. Finally, the motor termination boxes for the Unit 2 trains A and B DFOTP were replaced due to corrosion. The Units 1 and 3 motor termination boxes were inspected and exhibited no evidence of corrosion or moisture intrusion.
These actions eliminate the potential water flow path to the DFOTP motor termination box through the inside of the cable's outer jacket.
The Corrective Steps That Will Be Taken To Avoid Further Violations In addition to the actions described above, the following design modification, specification changes and extent of condition evaluation will be performed.
" Implement a Design Change Request (DCR) to replace the underground duct banks and associated cabling from all three EDG buildings to the six site DFOST vaults with direct buried submersible cables.
" Revise installation specification 13-EN-0300 "Installation Specification for Electrical Cable in Cable Trays" and 13-EN-0301 "Installation Specification for Electrical Cables in Conduit and Duct Banks" to identify compatible chemicals for cleaning cables.
" Revise installation specification 13-EN-0306 "Installation Specification for Cable Splicing and Termination" to add a requirement to install a cable splice or other means of blocking the flow of water internal to the outer jacket of cables where an electrical component is at a location such that a hydrostatic head may be developed with respect to the cables.
- Evaluate the need for cable splices for critical components and components that support key safety or operational functions, that are located in areas where water may be transported through the outer jacket of the cables.
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Enclosure 2 Reply to Notice of Violation EA-1 1-006 Additionally, Palo Verde will continue to monitor the EDG DFOTP cables as part of the Palo Verde preventive maintenance program to ensure the actions taken are effective to prevent water flow to the DFOTP motor termination box.
The Date When Full Compliance Will Be Achieved Full compliance was achieved on September 23, 2010, with the replacement of the two conductor control cables and three conductor power cables for the Unit 2 trains A and B DFOTP. During replacement these cables were spliced to interrupt the drain path and prevent possible future water drainage into the motor termination box through a path internal to the jackets around the cables.
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