IR 05000440/2011011
| ML111320382 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 05/13/2011 |
| From: | Jamnes Cameron NRC/RGN-III/DRP/B6 |
| To: | Bezilla M FirstEnergy Nuclear Operating Co |
| References | |
| IR-11-011 | |
| Download: ML111320382 (21) | |
Text
May 13, 2011
SUBJECT:
PERRY NUCLEAR POWER PLANT - NRC TEMPORARY INSTRUCTION 2515/183 INSPECTION REPORT 050000440/2011011
Dear Mr. Bezilla:
On April 29, 2011, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at your Perry Nuclear Power Plant, using Temporary Instruction 2515/183, Followup to the Fukushima Daiichi Nuclear Station Fuel Damage Event. The enclosed inspection report documents the inspection results which were discussed on May 6, 2011, with you and other members of your staff.
The objective of this inspection was to promptly assess the capabilities of Perry Nuclear Power Plant to respond to extraordinary consequences similar to those that have recently occurred at the Japanese Fukushima Daiichi Nuclear Station. The results from this inspection, along with the results from this inspection performed at other operating commercial nuclear plants in the United States, will be used to evaluate the U.S. nuclear industrys readiness to safely respond to similar events. These results will also help the NRC to determine if additional regulatory actions are warranted.
All of the potential issues and observations identified by this inspection are contained in this report. The NRCs Reactor Oversight Process will further evaluate any issues to determine if they are regulatory findings or violations. Any resulting findings or violations will be documented by the NRC in a separate report. You are not required to respond to this letter. In accordance with 10 CFR 2.390 of the NRCs Rules of Practice, a copy of this letter and its enclosure will be made available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRCs document system (ADAMS), accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
/RA/
Jamnes L. Cameron, Chief Branch 6 Division of Reactor Projects Docket No. 50-440 License No. NPF-58
Enclosure:
Inspection Report 050000440/2011011 w/Attachment: Supplemental Information
REGION III==
Docket No: 50-440 License No: NPF-58 Report No: 050000440/2011011 Licensee: FirstEnergy Nuclear Operating Company (FENOC)
Facility: Perry Nuclear Power Plant, Unit 1 Location: Perry, Ohio Dates: March 23, 2011, through April 29, 2011 Inspectors: M. Marshfield, Senior Resident Inspector T. Hartman, Resident Inspector Approved by: Jamnes L. Cameron, Chief Branch 6 Division of Reactor Projects Enclosure
SUMMARY OF FINDINGS
IR 05000440/2011011, 03/23/2011 - 04/29/2011; Perry Nuclear Power Plant; Temporary
Instruction 2515/183 - Followup to the Fukushima Daiichi Nuclear Station Fuel Damage Event This report covers an announced Temporary Instruction inspection. The inspection was conducted by resident inspectors. The NRCs program for overseeing the safe operation of commercial nuclear power reactors is described in NUREG-1649, Reactor Oversight Process,
Revision 4, dated December 2006.
INSPECTION SCOPE
The intent of the TI is to provide a broad overview of the industrys preparedness for events that may exceed the current design basis for a plant. The focus of the TI was on
- (1) assessing the licensees capability to mitigate consequences from large fires or explosions on site,
- (2) assessing the licensees capability to mitigate station blackout (SBO) conditions,
- (3) assessing the licensees capability to mitigate internal and external flooding events accounted for by the stations design, and
- (4) assessing the thoroughness of the licensees walk downs and inspections of important equipment needed to mitigate fire and flood events to identify the potential that the equipments function could be lost during seismic events possible for the site. If necessary, a more specific follow-up inspection will be performed at a later date.
INSPECTION RESULTS
All of the potential issues and observations identified by this inspection are contained in this report. The NRCs Reactor Oversight Process will further evaluate any issues to determine if they are regulatory findings or violations. Any resulting findings or violations will be documented by the NRC in a separate report.
03.01 Assess the licensees capability to mitigate conditions that result from beyond design basis events, typically bounded by security threats, committed to as part of NRC Security Order Section B.5.b issued February 25, 2002, and severe accident management guidelines and as required by Title 10 of the Code of Federal Regulations (10 CFR) 50.54(hh). Use Inspection Procedure (IP) 71111.05T, Fire Protection (Triennial), Section 02.03 and 03.03 as a guideline. If IP 71111.05T was recently performed at the facility the inspector should review the inspection results and findings to identify any other potential areas of inspection. Particular emphasis should be placed on strategies related to the spent fuel pool. The inspection should include, but not be limited to, an assessment of any licensee actions to:
Licensee Action Describe what the licensee did to test or inspect equipment.
a. Verify through test or inspection Licensee actions included the identification of equipment (active and passive) utilized for that equipment is available and implementation of B.5.b actions and any additional equipment used in Severe Accident functional. Active equipment Guidelines (SAGs). The scope of the equipment was defined as that equipment specifically shall be tested and passive designated for B.5.b or SAG mitigation (i.e., special hoses, fittings, diesel battery charger, equipment shall be walked down etc.). All active equipment was functionally tested. Fire pumps in place for B.5.b response and inspected. It is not were tested with a functional water flow test. Permanent plant equipment (i.e., in situ expected that permanently equipment) was not considered in the scope, since it is normally in service, subjected to installed equipment that is planned maintenance, and/or checked on operator rounds. The licensee identified tested under an existing surveillances/tests and performance frequencies for the in situ equipment determined under regulatory testing program be this item, and reviewed the results of recent tests. Passive equipment within the scope was retested.
walked down and inspected.
Describe inspector actions taken to confirm equipment readiness (e.g., observed a This review should be done for a test, reviewed test results, discussed actions, reviewed records, etc.).
reasonable sample of mitigating strategies/equipment.
The licensees actions as discussed above were completed prior to the issuance of NRC TI 2515/183. The inspectors assessed the licensees capabilities by conducting a review of the licensees walkdown activities. In addition, the inspectors independently walked down and inspected all major B.5.b contingency response equipment staged throughout the site.
The results of the inspectors independent walkdowns agreed with the results obtained by the licensee.
Discuss general results including corrective actions by licensee.
All equipment (active and passive) designated to support B.5.b procedure requirements was verified by the licensee to be available and properly located. All passive equipment was walked down and verified to be in place and ready for use. Passive equipment which had surveillance and/or preventative maintenance tasks had those activities performed to verify readiness for use.
All active equipment located at the site was verified in place by the licensee. The licensee retested all active equipment; flow testing was performed on designated B.5.b transportable fire pumps.
Describe the licensees actions to verify that procedures are in place and can be Licensee Action executed (e.g. walkdowns, demonstrations, tests, etc.)
b. Verify through walkdowns or Licensee actions included the identification of those procedures utilized to mitigate the demonstration that procedures consequences of a B.5.b-related event and severe accidents. The licensee then compiled to implement the strategies verification documentation for procedure validations and identified any procedures not associated with B.5.b and issued or validated and any with open change requests. Open change requests were 10 CFR 50.54(hh) are in place reviewed for potential impacts on procedure functionality. Walkdowns were performed on and are executable. Licensees all identified procedures that utilize non-plant equipment or that specify lifted leads or may choose not to connect or jumpers for permanent plant equipment.
operate permanently installed Describe inspector actions and the sample strategies reviewed. Assess whether equipment during this procedures were in place and could be used as intended.
verification.
The licensees actions as discussed above were completed prior to the issuance of NRC TI 2515/183. The inspectors assessed the licensees capabilities by conducting a review of This review should be done for a the licensees walkdown activities. In addition, the inspectors selected a sample of the reasonable sample of mitigating procedures walked down by the licensee and walked those down independently to verify the strategies/equipment.
licensees conclusions. The procedures walked down by the inspectors showed no discrepancies which had not been previously identified by the licensee and entered into the corrective action program (CAP).
Discuss general results including corrective actions by licensee.
The licensee reviewed the site SAG strategies and did not identify any issues. Procedures used for B.5.b were reviewed by the licensee and walkdowns were performed by operators to ensure actions taken in the field in response to a B.5.b event could be performed. Open procedure change requests were reviewed by the licensee to verify that there were no immediate procedure changes required. Two changes were identified by the licensee as having potential impact on operator response to a situation because the changes correct erroneous equipment locations identified in the procedures. The licensee upgraded the priority of these two change requests. Some minor enhancements were identified by the licensee and entered into the CAP. Specific condition reports (CRs) are listed in section 03.01(e) below.
Describe the licensees actions and conclusions regarding training and qualifications Licensee Action of operators and support staff.
c. Verify the training and Licensee actions included the identification of training/qualification requirements for qualifications of operators and operators for the implementation of actions needed to mitigate a B.5.b-related event, and for the support staff needed to the implementation of actions needed for SAG processes. The licensee documented that implement the procedures and operator training requirements were current.
work instructions are current for activities related to Security In addition, the licensee identified the training/qualification requirements for applicable Order Section B.5.b and severe emergency response organization (ERO) command and support staff, including security accident management personnel, for the implementation of actions needed to mitigate a B.5.b-related event and guidelines as required by SAG processes. The licensee also verified that ERO command and support staff training 10 CFR 50.54 (hh).
requirements were current.
Describe inspector actions and the sample strategies reviewed to assess training and qualifications of operators and support staff The licensees actions as discussed above were completed prior to the issuance of NRC TI 2515/183. The inspectors assessed the licensees training and qualification activities by conducting a review of training and qualification materials and records related to B.5.b and SAG event response.
Discuss general results including corrective actions by licensee.
The training requirements, qualifications, and associated records needed for operators for the implementation of SAGs and B.5.b event response were reviewed by the licensee.
Training was identified for shift managers, shift engineers, unit supervisors, reactor operators and non-licensed operators. The licensee verified that training requirements were embedded within the position qualifications for operators. The licensee confirmed that all shift operators verify their qualifications prior to assuming a shift position. The training requirements, qualifications, and associated records needed for ERO command and support staff for the implementation of actions needed to mitigate a B.5.b event or implement the SAGs were also reviewed. All ERO command and support staff training requirements were verified as current by the licensee.
Describe the licensees actions and conclusions regarding applicable agreements Licensee Action and contracts are in place.
d. Verify that any applicable Licensee actions included the identification of all applicable contracts and agreements agreements and contracts are in committed to be in place for the mitigation of a B.5.b-related event. The licensee verified place and are capable of that the contracts and agreements were current and documented whether or not the meeting the conditions needed contracts/agreements were capable of meeting the mitigation strategy.
to mitigate the consequences of For a sample of mitigating strategies involving contracts or agreements with offsite these events.
entities, describe inspector actions to confirm agreements and contracts are in place and current (e.g., confirm that offsite fire assistance agreement is in place and This review should be done for a current).
reasonable sample of mitigating The licensees actions as discussed above were completed prior to the issuance of NRC strategies/equipment.
TI 2515/183. The inspectors assessed the licensees capabilities by conducting an independent review of the licensees emergency response agreement with local counties and the standing mutual aid scheme in Ohio, Mutual Aid Box Alarm System, and the State of Ohio Emergency Response Plan. The licensee also maintains several emergency response agreements including with surrounding counties and fire agencies which support mitigation of events at the site. These agreements were verified to be current.
Discuss general results including corrective actions by licensee.
Licensee review of Letters of Agreement and Grant Agreements were found to be current and in place to support mitigation of security threats and mitigation strategies for other on-site events.
Document the corrective action report number and briefly summarize problems noted Licensee Action by the licensee that have significant potential to prevent the success of any existing mitigating strategy.
e. Review any open corrective The following entries into the licensees CAP were made in response to issues identified in action documents to assess Section 03.01:
problems with mitigating strategy implementation CR 11-91320 ONI-ZZZ-7 Spare vs. Future Breaker identified by the licensee.
CR 11-91328 EOP-SPI-1.8 ABI Hose Casing Damaged Assess the impact of the CR 11-91401 B5b Air Compressor Start Procedure problem on the mitigating CR 11-91481 ONI-SPI-D10 Equipment Lists Wrong Size Socket capability and the remaining CR 11-91482 FPI-A-T03 Champion Fire Pump Procedure Enhancements capability that is not impacted.
CR 11-91492 ONI-SPI-D10 Items Not Inventoried by a PM CR 11-91495 ONI-ZZZ-7 Procedure Enhancements; Jumper Cable Staging CR 11-91583 ONI-SPI-A7 Enhancement for Locations at Remote S/D Panel CR 11-91638 Foam Trailers Not on a PM CR 11-91714 MARCS Radio Not Answered During Test w/ Dispatch The inspectors reviewed each CR for potential impact to the licensees mitigation strategies.
No significant impacts were identified.
03.02 Assess the licensees capability to mitigate station blackout (SBO) conditions, as required by 10 CFR 50.63, Loss of All Alternating Current Power, and station design, is functional and valid. Refer to TI 2515/120, Inspection of Implementation of Station Blackout Rule Multi-Plant Action Item A-22 as a guideline. It is not intended that TI 2515/120 be completely reinspected. The inspection should include, but not be limited to, an assessment of any licensee actions to:
Describe the licensees actions to verify the adequacy of equipment needed to Licensee Action mitigate an SBO event.
a. Verify through walkdowns and Licensee actions included the identification of equipment utilized/required for mitigation of inspection that all required an SBO. The licensee then conducted walkdowns of this equipment to ensure they were materials are adequate and adequate and properly staged. Additionally, the licensee also conducted a review of open properly staged, tested, and CAP items for potential SBO equipment impact.
maintained.
Describe inspector actions to verify equipment is available and useable.
The inspectors assessed the licensees capability to mitigate SBO conditions by conducting a review of the licensees walkdown activities. In addition, the inspectors selected a sample of equipment utilized/required for mitigation of an SBO and conducted independent walkdowns of that equipment to verify that the equipment was properly aligned and staged.
The sample of equipment selected by the inspectors included those necessary to complete actions required by the following procedures: Off- Normal Instruction (ONI) R-10 Loss of AC Power; ONI-Special Plant Instruction (SPI) A-7, RCIC Emergency Operation; and ONI-SPI D-10, Hydrogen Igniter Emergency Operation.
Discuss general results including corrective actions by licensee.
The licensee determined that procedures for response to an SBO which are implemented through ONI R-10, Loss of AC Power, were adequate and materials were properly staged to support actions required by procedures. Minor discrepancies with required tools lists (all tools required were present but lists were deficient) and enhancements to procedures were identified and documented in the CAP for the licensee as follows:
CR 11-92018 ONI-SPI-A6, B6 Needs an Additional Tool - Adjustable Wrench CR 11-92207 Not All Items Used in ONI-SPI-A6, B6 on PM Inventory CR 11-91755 Div 3 DG Overspeed Reset Posted Aid Not as Detailed as Attachment CR 11-91756 Labels on ED1C Degraded CR 11-91964 LPCS Flush Connection Not Labeled Licensee Action Describe the licensees actions to verify the capability to mitigate an SBO event.
b. Demonstrate through Licensee actions included the identification of procedures required for response to an SBO, walkdowns that procedures for along with verification that the identified procedures were current and that no critical revision response to an SBO are requests were in place. The licensee then verified that the mitigating procedures had been executable.
properly validated. Additionally, the licensee also conducted a review of open CAP items for potential impact to SBO procedures.
Describe inspector actions to assess whether procedures were in place and could be used as intended.
The inspectors assessed the licensees capabilities by conducting a review of the licensees walkdown activities. In addition, the inspectors selected a sample of the procedures walked down by the licensee and walked those down to independently verify the licensees conclusions. The procedures reviewed by the inspectors included: ONI R-10 Loss of AC Power; ONI- SPI A-7, RCIC Emergency Operation; and ONI-SPI D-10, Hydrogen Igniter Emergency Operation.
Discuss general results including corrective actions by licensee.
The licensee procedure utilized to respond to an SBO is ONI R-10, Loss of AC Power.
Additionally a combination of ONIs and Emergency Operating Procedures, were identified for walkdowns. All procedures were found to be executable as written. Several enhancements were identified and captured in the CAP as follows:
CR 11-92499 Procedure Enhancements Identified for Increased Priority CR 11-91740 ONI-SPI-B4 Component Location Not Correct CR 11-91741 ONI-SPI-F5 Component Location Not Correct CR 11-91844 ONI-SPI-H1, H2 Enhancements CR 11-91856 ONI-SPI-C3 Human Performance Improvements 03.03 Assess the licensees capability to mitigate internal and external flooding events required by station design. Refer to IP 71111.01, Adverse Weather Protection, Section 02.04, Evaluate Readiness to Cope with External Flooding as a guideline. The inspection should include, but not be limited to, an assessment of any licensee actions to verify through walkdowns and inspections that all required materials and equipment are adequate and properly staged. These walkdowns and inspections shall include verification that accessible doors, barriers, and penetration seals are functional.
Describe the licensees actions to verify the capability to mitigate existing design Licensee Action basis flooding events.
a. Verify through walkdowns and Licensee actions included the identification of equipment and penetration seals inspection that all required utilized/required for mitigation of internal and external flooding. The licensee then materials are adequate and conducted walkdowns of this equipment to ensure it was adequate and properly staged.
properly staged, tested, and The primary equipment credited for flood mitigation in Perry design analyses are room and maintained.
sump level detectors and sump pump running alarms (level switches or transmitters that actuate control room annunciation windows to alert the operators). Credited equipment drains were walked down and determined to be functional. Doors, barriers, and penetration seals that are utilized for mitigation of flooding were identified and checked to see if they were routinely inspected to ensure functionality. Where routine inspections were not performed or could not be relied upon to ensure functionality, the licensee performed walkdowns and inspections to ensure that the components were functional.
Describe inspector actions to verify equipment is available and useable. Assess whether procedures were in place and could be used as intended.
The inspectors assessed the licensees capabilities to mitigate flooding by conducting a review of the licensees walkdown activities. In addition, the inspectors conducted independent walkdowns of selected flood mitigation equipment to review the overall assessment of the licensees flood mitigating capabilities. Licensee flood mitigation procedures were reviewed to verify usability. An external plant walkdown was conducted to review site external flood potential and licensee mitigation strategies. The inspectors' reviews were consistent with the licensee conclusions of functionality.
Discuss general results including corrective actions by licensee.
The licensee determined that, with a couple of minor deficiencies, all doors barriers and penetration seals relied on for internal flooding control and mitigation of external flooding events are tested on a periodic basis which supports the functionality of the equipment.
Deficiencies noted were captured in the CAP as follows:
CR 11-92019 Turbine Building to Heater Bay Wall Penetration Blocked CR 11-92037 Potential Flooding Concern HB 620 CR 11-92215 Degraded Intermediate Building Floor Penetrations CR 11-92301 Flooding Vulnerability for Items Stored At and Near the Swale CR 11-92425 Vulnerability for Flood Barriers at Safety Electrical Manholes CR 11-92555 Penetration Seals Not Inspected Due to Location or Rad Levels 03.04 Assess the thoroughness of the licensees walkdowns and inspections of important equipment needed to mitigate fire and flood events to identify the potential that the equipments function could be lost during seismic events possible for the site. Assess the licensees development of any new mitigating strategies for identified vulnerabilities (e.g., entered it in to the CAP and any immediate actions taken). At a minimum, the licensee should have performed walkdowns and inspections of important equipment (permanent and temporary) such as storage tanks, plant water intake structures, and fire and flood response equipment; and developed mitigating strategies to cope with the loss of that important function. Use IP 71111.21, Component Design Basis Inspection, Appendix 3, Component Walkdown Considerations, as a guideline to assess the thoroughness of the licensees walkdowns and inspections.
Describe the licensees actions to assess the potential impact of seismic events on Licensee Action the availability of equipment used in fire and flooding mitigation strategies.
a. Verify through walkdowns that Licensee actions included the identification of equipment utilized/required for mitigation of all required materials are fire and flood events. Seismic vulnerabilities, including storage locations, were identified, adequate and properly staged, along with mitigating strategies for equipment that was not seismically qualified. The tested, and maintained.
licensee identified that portions of fire suppression system piping which provide fire protection to nuclear plant support systems is seismically qualified and can be supplied from the seismically qualified backup system, which is Emergency Service Water, through various points of interconnection.
Describe inspector actions to verify equipment is available and useable. Assess whether procedures were in place and could be used as intended.
The inspectors conducted independent walkdowns of important equipment needed to mitigate fire and flood events to identify the potential that the equipments function could be lost during a seismic event. This equipment included, but was not limited to: major B.5.b contingency response equipment staged throughout the site; installed fire protection and suppression equipment in the Intermediate Building and Control Complex; and installed diesel and electric fire pumps and their controls.
Licensee flood and fire mitigation procedures were reviewed to verify usability. The results of the inspectors reviews were consistent with the licensees conclusions that there were a number of seismic vulnerabilities that potentially need to be addressed.
Discuss general results including corrective actions by the licensee. Briefly summarize any new mitigating strategies identified by the licensee as a result of their reviews.
Seismically qualified is defined as the safety-related structure, system and component (SSCs) that have been formally qualified to function during and after a design basis earthquake, as applicable. The licensees reviews for this issue determined that non-safety related SSCs, in general, were not considered to be either seismically qualified or seismically rugged due to a wide variety of issues. The majority of room flood mitigation sump pumps and flooding detectors were not designed as seismically qualified and have not been evaluated as being seismically rugged. Similarly, the vast majority of the fire protection system, including both installed fire pumps, was not designed as seismically qualified and cannot be considered seismically rugged. Firefighting equipment staged to respond to B.5.b events was not stowed in seismically qualified buildings and locations, as a seismic event and B.5.b event have never been assumed to occur coincidentally.
The licensees reviews identified instances where response capability could be enhanced.
These included developing additional mitigation strategies, reviewing the locations of portable equipment, and reviewing the need for supplemental portable equipment to compensate for the possible loss of the fire water headers, the fire pumps, and much of the fire suppression system piping.
Further, reviews by the licensee identified that, in the event of a postulated earthquake, equipment may not function properly due to loss of essential power or being subjected to physical displacement. An existing mitigation strategy of conducting station surveys per the emergency plan and manning the emergency response organization following a seismic event was considered presently sufficient by the licensee. Further mitigation strategies, the licensee determined, will entail following industry recommendations from other plants that have identified similar beyond-design-bases vulnerabilities. The licensee entered the following minor issues into their CAP:
CR 11-92349 Scaffold Lay Down Area in IB Around Fire Protection Piping CR 11-92350 Three Scaffold Builds are Around Fire Piping CR 11-92352 Two Fire Protection Valves Noted to Have Packing Gland Leaks CR 11-92355 Fire Protection Piping Leaks Were Noted CR 11-92464 Some Equipment Racks in the SB-620' Brigade Station May Topple in Seismic Event. Should Be Fastened to Wall.
CR 11-92349 Two Fire Protection Isolation Valves Were Noted to Have Packing Leaks.
CR 11-92350 Three Scaffold Builds Were Noted to Be Built Around / Near Fire Protection Piping.
CR 11-92410 Some Minor Deficiencies Noted on ESW Pump House Fire Piping.
CR 11-92365 Scaffold Lay Down Area in CC in Close Proximity to Fire Protection Piping.
CR 11-92366 Scaffold Storage Area on 574 Elevation of Control Complex in Close Proximity to Fire Protection Piping and Associated Hose Reel.
CR 11-92557 Components Inaccessible for Walkdown.
Meetings Exit Meeting The inspectors presented the inspection results to Mr. Mark Bezilla and other members of licensee management on May 6, 2011. The inspectors asked the licensee whether any materials examined during the inspection should be considered proprietary. No proprietary information was identified.
SUPPLEMENTAL INFORMATION
KEY POINTS OF CONTACT
Licensee
- M. Bezilla, Site Vice President
- K. Krueger, Plant General Manager
- J. Grabnar, Site Engineering Director
- H. Hanson, Performance Improvement Director
- T. Jardine, Operations Manager
- L. Lindros, Site Security Manager
- M. Stevens, Maintenance Director
Enclosure