IR 05000280/2010005: Difference between revisions
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| issue date = 01/31/2011 | | issue date = 01/31/2011 | ||
| title = IR 05000280-10-005, 05000281-10-005, 10/01/2010 - 12/31/2010; Surry Power Station, Units 1 and 2, Operability Evaluations, Refueling and Other Outage Activities, and Surveillance Testing | | title = IR 05000280-10-005, 05000281-10-005, 10/01/2010 - 12/31/2010; Surry Power Station, Units 1 and 2, Operability Evaluations, Refueling and Other Outage Activities, and Surveillance Testing | ||
| author name = | | author name = Mccoy G | ||
| author affiliation = NRC/RGN-II/DRP/RPB5 | | author affiliation = NRC/RGN-II/DRP/RPB5 | ||
| addressee name = Heacock D | | addressee name = Heacock D | ||
| addressee affiliation = Virginia Electric & Power Co (VEPCO) | | addressee affiliation = Virginia Electric & Power Co (VEPCO) | ||
| docket = 05000280, 05000281 | | docket = 05000280, 05000281 | ||
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=Text= | =Text= | ||
{{#Wiki_filter: | {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION ary 31, 2011 | ||
==SUBJECT:== | |||
SURRY POWER STATION - NRC INTEGRATED INSPECTION REPORT 05000280/2010005, 05000281/2010005 | |||
SUBJECT: SURRY POWER STATION - NRC INTEGRATED INSPECTION REPORT 05000280/2010005, 05000281/2010005 | |||
==Dear Mr. Heacock:== | ==Dear Mr. Heacock:== | ||
On December 31, 2010, the United States Nuclear Regulatory Commission (NRC) completed an inspection at your Surry Power Station, Units 1 and 2. The enclosed inspection report documents the inspection results, which were discussed on January 11, 2011, with Mr. Bischof and other members of your staff | On December 31, 2010, the United States Nuclear Regulatory Commission (NRC) completed an inspection at your Surry Power Station, Units 1 and 2. The enclosed inspection report documents the inspection results, which were discussed on January 11, 2011, with Mr. Bischof and other members of your staff. | ||
The inspections examined activities conducted under your licenses as they relate to safety and compliance with the Commissions rules and regulations and with the conditions of your licenses. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel. | |||
This report documents two findings that have potential safety significance greater than very low safety significance. The findings are associated with the failure to correct multiple conditions adverse to fire protection, and the failure to effectively manage risk with the common emergency switchgear room (ESGR) door. Although these findings have potential safety significance, the findings did not represent immediate safety concerns because compensatory measures to deenergize adjacent loads was in place after the fire to prevent additional failures, and the licensee immediately closed the ESGR door. These findings do not present current safety concerns because for the fire protection issue, the failed load has been repaired and all existing unprotected breakers were isolated from their loads as a compensatory measure to prevent additional failures and for the ESGR door issue, the door has been repaired and access control has been restored to normal. | |||
In addition, the report documents one NRC-identified finding and one self-revealing finding of very low safety significance (Green) which were determined to involve violations of NRC requirements. Additionally, one licensee-identified violation which was determined to be of very low safety significance is listed in this report. The NRC is treating these violations as non-cited violations (NCV) consistent with Section 2.3.2 of the NRC Enforcement Policy because of the very low safety significance of the violations and because they were entered into your corrective action program. If you contest any NCV, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the Nuclear Regulatory Commission, ATTN.: Document Control Desk, Washington DC 20555-0001; with copies to the | |||
VEPCO 2 Regional Administrator Region II; the Director, Office of Enforcement, United States Nuclear Regulatory Commission, Washington, DC 20555-0001; and the NRC Resident Inspector at the Surry Power Station. | |||
In addition, if you disagree with the characterization of any finding in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your disagreement, to the Regional Administrator, Region II; and the NRC Resident Inspector at the Surry Power Station. The information you provide will be considered in accordance with Inspection Manual Chapter 0305. | |||
In accordance with 10 CFR 2.390 of the NRCs Rules of Practice, a copy of this letter, its enclosure, and your response (if any) will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of the NRCs document system (ADAMS). ADAMS is accessible from the NRC Website at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room). | |||
Sincerely,/RA/ Gerald J. McCoy, Chief Reactor Projects Branch 5 Division of Reactor Projects Docket Nos.: 50-280, 50-281 License Nos.: DPR-32, DPR-37 | Sincerely, | ||
/RA/ | |||
Gerald J. McCoy, Chief Reactor Projects Branch 5 Division of Reactor Projects Docket Nos.: 50-280, 50-281 License Nos.: DPR-32, DPR-37 | |||
===Enclosure:=== | ===Enclosure:=== | ||
Inspection Report 05000280/2010005, 05000281/2010005 | Inspection Report 05000280/2010005, 05000281/2010005 w/Attachment: Supplemental Information | ||
== | REGION II== | ||
Docket Nos.: 50-280, 50-281 License Nos.: DPR-32, DPR-37 Report No: 05000280/2010005, 05000281/2010005 Licensee: Virginia Electric and Power Company (VEPCO) | |||
Facility: Surry Power Station, Units 1 and 2 Location: 5850 Hog Island Road Surry, VA 23883 Dates: October 1, 2010 through December 31, 2010 Inspectors: C. Welch, Senior Resident Inspector G. Kolcum, Acting Senior Resident Inspector J. Nadel, Resident Inspector J. Dodson, Senior Project Engineer E. Lea, Senior Operations Engineer (1R11) | |||
R. Hamilton, Senior Health Physics Inspector (2RS1-S3, 4OA1, 4OA5) | |||
L. Lake, Senior Reactor Inspector (1R08) | |||
R. Chow, Reactor Inspector (1R07) | |||
Approved by: Gerald J. McCoy, Chief Reactor Projects Branch 5 Division of Reactor Projects Enclosure | |||
=SUMMARY OF FINDINGS= | |||
IR 05000280/2010005, 05000281/2010005, 10/01/2010 - 12/31/2010; Surry Power Station, | |||
Units 1 and 2, Operability Evaluations, Refueling and Other Outage Activities, and Surveillance Testing. | |||
The report covered a 3 month period of inspection by resident inspectors and by regional engineering, operator licensing and health physics inspectors. This report contains two Green findings, which were non-cited violations (NCVs), and two apparent violations (AVs) with potential safety significance greater than | |||
: '''Green.''' | : '''Green.''' | ||
The significance of most findings is indicated by their color (Green, White, Yellow, Red) using Inspection Manual Chapter (IMC) 0609, | The significance of most findings is indicated by their color (Green, White, Yellow, Red) using Inspection Manual Chapter (IMC) 0609, | ||
Significance Determination Process (SDP). The cross-cutting aspect was determined using IMC 0310, Components Within The Cross-Cutting Areas. Findings for which the SDP does not apply may be Green or be assigned a severity level after NRC management review. 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. | |||
=== | ===NRC Identified and Self-Revealing Findings=== | ||
===Cornerstone: Initiating Events=== | ===Cornerstone: Initiating Events=== | ||
: '''Green.''' | : '''Green.''' | ||
A self-revealing Green NCV of TS 6.4, Unit Operating Procedures and Programs, was identified for the failure to follow procedure 1-OPT-ZZ-001, ESF Actuation with Undervoltage and Degraded Voltage 1H Bus. Specifically, on October 26, 2010, a test lead was incorrectly installed in the Unit 1 relay room for the logic circuit associated with the A train of Consequence Limiting Safeguards (CLS). This resulted in an inadvertent safety injection, isolated component cooling water supply to the standby residual heat removal (RHR) train, and automatically initiated several safety-related components including emergency diesel generator (EDG) #1. Operators entered AP-10.20, Response To Spurious Safety Injection With RCS Temperature Less Than | A self-revealing Green NCV of TS 6.4, Unit Operating Procedures and Programs, was identified for the failure to follow procedure 1-OPT-ZZ-001, ESF Actuation with Undervoltage and Degraded Voltage 1H Bus. Specifically, on October 26, 2010, a test lead was incorrectly installed in the Unit 1 relay room for the logic circuit associated with the A train of Consequence Limiting Safeguards (CLS). This resulted in an inadvertent safety injection, isolated component cooling water supply to the standby residual heat removal (RHR) train, and automatically initiated several safety-related components including emergency diesel generator (EDG) #1. Operators entered AP-10.20, Response To Spurious Safety Injection With RCS Temperature Less Than 350F, and terminated the safety injection in approximately three minutes. The licensee entered this issue into the CAP (CR 400908). | ||
Failure to install the test leads as required by procedure 1-OPT-ZZ-001, is a performance deficiency. The finding is more than minor because it is associated with the configuration control attribute of the Initiating Events Cornerstone and adversely affected the cornerstones objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. The finding, evaluated in accordance with NRC Inspection Manual Chapter (IMC) 0609, Appendix G, Shutdown Operations Significance Determination Process, | |||
Attachment 1, Checklist 3, identified the finding is of very low safety significance (Green)because the finding did not lead to a loss of decay heat removal. This finding has a cross cutting aspect in the work practices component in the Human Performance area, because human error prevention techniques were not properly used commensurate with the risk significance of the assigned task (H.4(a)). (Section 1R22) | |||
===Cornerstone: Mitigating Systems=== | ===Cornerstone: Mitigating Systems=== | ||
* TBD. A self-revealing | * TBD. A self-revealing apparent violation (AV) of Condition 1.B to the Surry Unit 1 and Unit 2 Updated Facility Operating Licenses, DPR-32 and DPR-37, was identified for the licensees failure to take corrective action for degraded conditions adverse to the fire protection program. Specifically, in 2003-2004, three breakers with loads including the Unit 2 1B Refueling Water Storage Tank (RWST) chiller motor, the Unit 1 2B charging component cooling water pump, and the Unit 2 B hydrogen recombiner were identified as being oversized with respect to the Surry design standard for breaker sizing and cable protection. The failure to take corrective action on the affected breakers led to a fault on the Unit 2 RWST Chiller Motor 1B on October 11, 2010, and a resulting fire which damaged the electrical cable and motor controller. The fire was promptly extinguished by the fire brigade. The licensee entered this issue into the CAP (CR 398628) and isolated the remaining breakers to prevent additional failures. | ||
* TBD. A licensee identified AV of 10CFR50.65 (a)(4), Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants, was revealed after the licensee discovered that 2-BS-DR-21, common emergency switchgear room (ESGR) door was blocked open for two hours without clear communication to licensed operators. The licensee did not adequately assess the increase in operational risk that resulted in the required risk management actions of fire and environmentally qualified watches not being established. The licensee immediately corrected the condition by shutting the HELB door and having security control personnel access. The issue was entered into the | |||
The inspectors found that the failure to take action to correct multiple oversized breakers constituted a performance deficiency. The finding is more than minor because it adversely affected the external factors attribute (fire) of the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the Unit 2 1B RWST chiller motor and the Unit 2 B hydrogen recombiner breakers were the most susceptible to fire due to their size; also a cable fault could potentially damage safety related cables routed nearby. In addition, the Unit 1 2B charging component cooling water pump is safety related and was also unprotected. The inspectors reviewed IMC 0609, Appendix F, Attachment 1, and determined the category of post fire safe shutdown was affected and the finding required a phase 3 analysis. The significance of this finding is to be determined pending completion of the phase 3 evaluation. This finding has a cross cutting aspect in the work control component in the Human Performance area because the licensee did not appropriately plan work activities by incorporating risk insights. Specifically, although work orders were planned in 2006 they were neither prioritized consistent with their safety significance nor scheduled and completed in a timely manner. (H.3(a)). (Section 1R15.b.1) | |||
* TBD. A licensee identified AV of 10CFR50.65 (a)(4), Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants, was revealed after the licensee discovered that 2-BS-DR-21, common emergency switchgear room (ESGR) door was blocked open for two hours without clear communication to licensed operators. The licensee did not adequately assess the increase in operational risk that resulted in the required risk management actions of fire and environmentally qualified watches not being established. The licensee immediately corrected the condition by shutting the HELB door and having security control personnel access. The issue was entered into the licensees CAP as CR397720. | |||
The failure to adequately assess the increased risk associated with blocking open the common ESGR door and to take the required risk management actions is a performance deficiency. This finding is more than minor because it is associated with the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. | |||
Specifically, both Unit 1 and Unit 2 plant risk were not evaluated and risk management activities were not put in place when the common ESGR door was blocked open for maintenance and unable to perform its function as a fire barrier, a halon suppression pressure boundary, a main control room pressure boundary, and a HELB boundary. In accordance with IMC 0609, Appendix K, Maintenance Risk Assessment and Risk Management Significance Determination Process, this finding will require a phase 3 analysis. The significance of this finding is to be determined pending completion of the phase 3 evaluation. The inspectors determined that this finding had a cross-cutting aspect in the work control component of the human performance area because the licensee did not appropriately plan work activities by incorporating risk insights (H.3(a)). | Specifically, both Unit 1 and Unit 2 plant risk were not evaluated and risk management activities were not put in place when the common ESGR door was blocked open for maintenance and unable to perform its function as a fire barrier, a halon suppression pressure boundary, a main control room pressure boundary, and a HELB boundary. In accordance with IMC 0609, Appendix K, Maintenance Risk Assessment and Risk Management Significance Determination Process, this finding will require a phase 3 analysis. The significance of this finding is to be determined pending completion of the phase 3 evaluation. The inspectors determined that this finding had a cross-cutting aspect in the work control component of the human performance area because the licensee did not appropriately plan work activities by incorporating risk insights (H.3(a)). | ||
(Section 1R15.b.2) | |||
===Cornerstone: Barrier Integrity=== | ===Cornerstone: Barrier Integrity=== | ||
: '''Green.''' | : '''Green.''' | ||
An NRC-identified Green NCV of Technical Specification (TS) 6.4, Unit Operating Procedures and Programs, was identified. Personnel failed to follow the defined heavy load shipping path inside containment as specified in procedure, GMP-001, Heavy Load Rigging and Movement, which resulted in the movement of the 1B reactor coolant pump motor over exposed reactor fuel. The licensee has entered the issue into the CAP (CR 404106). | An NRC-identified Green NCV of Technical Specification (TS) 6.4, Unit Operating Procedures and Programs, was identified. Personnel failed to follow the defined heavy load shipping path inside containment as specified in procedure, GMP-001, Heavy Load Rigging and Movement, which resulted in the movement of the 1B reactor coolant pump motor over exposed reactor fuel. The licensee has entered the issue into the CAP (CR 404106). | ||
=== | Transport of the 1B reactor coolant pump motor over the exposed reactor core is a performance deficiency. The finding is more than minor because it can reasonably be viewed as a precursor to a significant event, the heavy load traveled over exposed irradiated fuel with the reactor vessel head removed. In accordance with NRC Inspection Manual Chapter (IMC) 0609, Appendix G, Shutdown Operations Significance Determination Process, Attachment 1, Checklist 4, the inspectors conducted a Phase 1 SDP screening and determined the finding required a Phase 2 analysis. The Phase 2 analysis determined the finding is of very low safety significance (Green) because: (1)there is a low probability of dropping the load based on a study in NUREG-1774 performed for crane operating experience; (2) the polar crane was in working condition and had no known deficiencies that would have affected the cranes ability to lift the load; and, (3) the duration of the heavy load lift over the exposed reactor core was very short. In addition, in accordance with NRC IMC 0609, Appendix H, Containment Integrity SDP, the finding would not contribute to LERF due to the time since the reactor was shutdown. The finding has a cross-cutting aspect in the work practices component of the Human Performance area because plant supervisors failed to properly supervise workers executing procedure steps (H.4(c)). (Section 1R20) | ||
One violation of very low safety significance that was identified by the licensee has been reviewed by the inspectors. Corrective actions taken or planned by the licensee have been entered into the | |||
===Licensee Identified Violations=== | |||
One violation of very low safety significance that was identified by the licensee has been reviewed by the inspectors. Corrective actions taken or planned by the licensee have been entered into the licensees corrective action program. This violation and corrective action tracking number are listed in Section 4OA7 of this report | |||
=REPORT DETAILS= | =REPORT DETAILS= | ||
===Summary of Plant Status=== | ===Summary of Plant Status=== | ||
Unit 1 entered the period at full rated thermal power (RTP) and subsequently entered into coast down operations, for refueling outage on October 23, 2010. The unit was taken off-line and the reactor shutdown on October 24. Startup commenced on November 30, 2010. The reactor was brought critical on December 1, 2010. The Unit was connected to the electrical grid, following physics testing, on December 2, 2010. RTP was reached on December 5, 2010. The Unit operated at RTP for the remainder of the period. Unit 2 operated at or near full RTP throughout the inspection period. | |||
Unit 1 entered the period at full rated thermal power (RTP) and subsequently entered into coast down operations, for refueling outage on October 23, 2010. The unit was taken off-line and the reactor shutdown on October 24. Startup commenced on November 30, 2010. The reactor was brought critical on December 1, 2010. The Unit was connected to the electrical grid, following physics testing, on December 2, 2010. RTP was reached on December 5, 2010. The Unit operated at RTP for the remainder of the period. | |||
Unit 2 operated at or near full RTP throughout the inspection period. | |||
==REACTOR SAFETY== | ==REACTOR SAFETY== | ||
Cornerstones: | Cornerstones: Initiating Events, Mitigating Systems, and Barrier Integrity | ||
{{a|1R04}} | |||
==1R04 Equipment Alignment== | |||
===.1 Partial Walkdown=== | ===.1 Partial Walkdown=== | ||
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====b. Findings==== | ====b. Findings==== | ||
No findings were identified. | No findings were identified. {{a|1R05}} | ||
{{a|1R05}} | |||
==1R05 Fire Protection== | ==1R05 Fire Protection== | ||
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====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
The inspectors conducted a defense-in-depth (DID) review for the four fire areas listed below by walkdown and review of licensee documents. The reviews were performed to evaluate the fire protection program operational status and material condition and the adequacy of: | The inspectors conducted a defense-in-depth (DID) review for the four fire areas listed below by walkdown and review of licensee documents. The reviews were performed to evaluate the fire protection program operational status and material condition and the adequacy of: | ||
: (1) control of transient combustibles and ignition sources; | |||
: (2) fire detection and suppression capability; | |||
: (3) passive fire protection features; | |||
: (4) compensatory measures established for out-of-service, degraded or inoperable fire protection equipment, systems, or features; and | |||
: (5) procedures, equipment, fire barriers, and systems so that post-fire capability to safely shutdown the plant is ensured. The inspectors reviewed the corrective action program to verify fire protection deficiencies were being identified and properly resolved. | |||
* Fire zone 15, Unit 1 Containment | * Fire zone 15, Unit 1 Containment | ||
* Fire zone 7, EDG #2 Room | * Fire zone 7, EDG #2 Room | ||
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====b. Findings==== | ====b. Findings==== | ||
No findings were identified. | No findings were identified. {{a|1R07}} | ||
{{a|1R07}} | |||
==1R07 Heat Sink Performance== | ==1R07 Heat Sink Performance== | ||
====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
The inspectors reviewed the | The inspectors reviewed the licensees heat exchanger program document, trending data maintained by the system engineer, maintenance rule information, and specific commitments related to the recirculation spray heat exchangers. The inspectors also directly observed the flow testing of 1-RS-E-1A and 1-RS-E-1D which was performed during the Unit 1, November 2010, refueling outage. Inspectors reviewed records and as found photographs associated with heat exchanger inspections performed during the outage for heat exchangers 1-RS-E-1A, 1B, 1C, and 1D. The inspectors verified significant heat exchanger performance issues were being entered into the licensees corrective action program and appropriately addressed. | ||
====b. Findings==== | ====b. Findings==== | ||
No findings were identified. | No findings were identified. {{a|1R08}} | ||
{{a|1R08}} | |||
==1R08 Inservice Inspection (ISI) Activities== | ==1R08 Inservice Inspection (ISI) Activities== | ||
{{IP sample|IP=IP 71111.08P}} | {{IP sample|IP=IP 71111.08P}} | ||
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====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
From November 1 to November 12, 2010, the inspectors reviewed the implementation of the | From November 1 to November 12, 2010, the inspectors reviewed the implementation of the licensees In-service Inspection (ISI) program for monitoring degradation of the reactor coolant system (RCS) boundary and risk significant piping boundaries of Unit 1. | ||
The inspectors activities consisted of an on-site review of NDE to evaluate compliance with the applicable edition of the American Society of Mechanical Engineers (ASME) | |||
Boiler and Pressure Vessel Code (BPVC), Section XI (Code of record: 2001 Edition with 2003 Addenda), and to verify that indications and defects (if present) were appropriately evaluated and dispositioned in accordance with the requirements of the ASME Code, Section XI acceptance standards. | |||
The inspectors | The inspectors observed and/or reviewed portions of the NDE activities listed below. | ||
The review included examination procedures, NDE reports, video of the inspection, equipment and personnel qualification records, and calibration reports (as applicable). | |||
* Ultrasonic Testing (UT) of ASME Class 1 weld 12-SI-147-105A in 12 inch Safety Injection piping | * Ultrasonic Testing (UT) of ASME Class 1 weld 12-SI-147-105A in 12 inch Safety Injection piping | ||
* UT examinations of | * UT examinations of C Steam Generator Bottom Head DM welds 1-05DM and 1-06DM | ||
* UT examination of RHR Heat Exchanger welds 1-B08, 1-A01 and 1-A-02 | * UT examination of RHR Heat Exchanger welds 1-B08, 1-A01 and 1-A-02 The inspectors review of welding activities specifically covered the welding activity listed below in order to evaluate compliance with procedures and the ASME Code. The inspectors reviewed the work order, repair and replacement plan, weld data sheets, welding procedures, procedure qualification records, welder qualification records, and NDE reports. | ||
* Repair Replacement Plan 2010-106 associated with Work Order # 3810285663, for replacement of Safety Injection Check Valve 01-SI-147, 4/1/09 | * Repair Replacement Plan 2010-106 associated with Work Order # 3810285663, for replacement of Safety Injection Check Valve 01-SI-147, 4/1/09 | ||
* Welding Technique Sheet and welding Data Sheet for completed weld 12-SI-147-105A-1-05A | * Welding Technique Sheet and welding Data Sheet for completed weld 12-SI-147-105A-1-05A | ||
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====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
The inspectors reviewed the | The inspectors reviewed the licensees BACC program activities to ensure implementation with commitments made in response to NRC Generic Letter 88-05, Boric Acid Corrosion of Carbon Steel Reactor Pressure Boundary, and applicable industry guidance documents. Specifically, the inspectors performed an on-site record review of procedures and the results of the licensees containment walk-down inspections performed during the current fall outage. The inspectors also interviewed the BACC program owner, conducted an independent walk-down of containment to evaluate compliance with licensees BACC program requirements, and verified that degraded or non-conforming conditions, such as boric acid leaks, were properly identified and corrected in accordance with the licensees BACC and corrective action programs. | ||
The inspectors reviewed an engineering evaluation completed for evidence of boric acid found on systems containing borated water to verify compliance with generally accepted industry guidance. | The inspectors reviewed an engineering evaluation completed for evidence of boric acid found on systems containing borated water to verify compliance with generally accepted industry guidance. | ||
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====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
The NRC inspectors interviewed eddy current testing (ET) personnel including the licensee SG engineer, ET Level III, and ET Qualified Data Analyst (QDA), and vendor lead ET Level III; and reviewed documentation related to the SG ISI program. The following items were evaluated against the requirements of the ASME B&PV Code, Section XI; the Technical Specifications; and the guidance documents referenced in NEI 97-06, | The NRC inspectors interviewed eddy current testing (ET) personnel including the licensee SG engineer, ET Level III, and ET Qualified Data Analyst (QDA), and vendor lead ET Level III; and reviewed documentation related to the SG ISI program. The following items were evaluated against the requirements of the ASME B&PV Code, Section XI; the Technical Specifications; and the guidance documents referenced in NEI 97-06, Steam Generator Program Guidelines, Revision 2: | ||
* Assessed whether assumed NDE flaw sizing accuracy was consistent with data from the EPRI examination technique specification sheets (ETSS) or other applicable performance demonstrations | * Assessed whether assumed NDE flaw sizing accuracy was consistent with data from the EPRI examination technique specification sheets (ETSS) or other applicable performance demonstrations | ||
* Reviewed ET data (including historical ET data) from: SG A - Row (R)2, Column (C)57, R3C66, R6C88, R8C38, R16C35, R29C24, and R34C67; | * Reviewed ET data (including historical ET data) from: SG A - Row (R)2, Column (C)57, R3C66, R6C88, R8C38, R16C35, R29C24, and R34C67; and SG B - R1C7, R9C3, R25C85, R31C16, R38C21, R40C50, R40C51,and R41C51 | ||
* Compared the numbers and sizes of SG tube flaws/degradation identified, against the | * Compared the numbers and sizes of SG tube flaws/degradation identified, against the licensees previous outage Operational Assessment predictions | ||
* Reviewed the SG tube ET examination scope and expansion criteria | * Reviewed the SG tube ET examination scope and expansion criteria | ||
* Evaluated the | * Evaluated the licensees SG tube ET examination scope for potential areas of tube degradation identified in prior outage SG tube inspections and/or as identified in NRC generic industry operating experience applicable to the licensees SG tubes | ||
* Reviewed the | * Reviewed the licensees examination scope expansion plans and implementation when defects were identified | ||
* Reviewed the | * Reviewed the licensees repair criteria and processes | ||
* Evaluated ET equipment and techniques used by the licensee to acquire data from the SG tubes for site-validation in accordance with Appendix H, Performance Demonstration for Eddy Current Examination, of EPRI Pressurized Water Reactor Steam Generator Examination Guidelines, Revision 7 | * Evaluated ET equipment and techniques used by the licensee to acquire data from the SG tubes for site-validation in accordance with Appendix H, Performance Demonstration for Eddy Current Examination, of EPRI Pressurized Water Reactor Steam Generator Examination Guidelines, Revision 7 | ||
* Reviewed the | * Reviewed the licensees disposition procedures of irretrievable foreign objects left within the secondary side of the steam generators | ||
* Verified the licensee was complying with appropriate probe wear criteria during implementation of Generic Letter 95-05 | * Verified the licensee was complying with appropriate probe wear criteria during implementation of Generic Letter 95-05 | ||
* Reviewed equipment and data acquisition and analysis personnel certification and medical examination reports | * Reviewed equipment and data acquisition and analysis personnel certification and medical examination reports | ||
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====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
The inspectors performed a review of ISI-related problems which were identified by the licensee and entered into the corrective action program as Condition Reports (CRs). The inspectors reviewed the CRs to confirm that the licensee had appropriately described the scope of the problem, and had initiated corrective actions. The review also included the | The inspectors performed a review of ISI-related problems which were identified by the licensee and entered into the corrective action program as Condition Reports (CRs). | ||
The inspectors reviewed the CRs to confirm that the licensee had appropriately described the scope of the problem, and had initiated corrective actions. The review also included the licensees consideration and assessment of operating experience events applicable to the plant. The inspectors performed this review to ensure compliance with 10CFR Part 50, Appendix B, Criterion XVI, Corrective Action, requirements. The corrective action documents reviewed by the inspectors are listed in the report attachment. | |||
====b. Findings==== | ====b. Findings==== | ||
No findings were identified. | No findings were identified. {{a|1R11}} | ||
{{a|1R11}} | |||
==1R11 Licensed Operator Requalification Program== | ==1R11 Licensed Operator Requalification Program== | ||
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====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
The inspectors observed | The inspectors observed just in time training conducted on October 19, 2010 in both the classroom and the simulator. The training was conducted under scenario RQ-ST-JIT-AIA-2.16. The training focused on the upcoming ramp and Unit 1 shutdown for refueling. The inspectors reviewed procedure 1-GOP-2.7, Unit Shutdown, Power Decrease from Allowable Power to Unit Offline for Refueling Outage and verified that licensed operators were aware of recent changes to the procedure. The inspectors verified that simulator conditions were consistent with the scenario and reflected the actual plant configuration (i.e., simulator fidelity). The inspectors observed a portion of the crews performance to determine whether proper communication, procedure adherence, and human performance techniques were being used. The inspectors observed the evaluators ongoing comments and confirmed items for improvement were identified and discussed with the operators to further enhance performance. | ||
====b. Findings==== | ====b. Findings==== | ||
No findings were identified. | No findings were identified. {{a|1R12}} | ||
{{a|1R12}} | |||
==1R12 Maintenance Effectiveness== | ==1R12 Maintenance Effectiveness== | ||
====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
For the three equipment issues described in the condition reports listed below, the inspectors evaluated the effectiveness of the corresponding licensee's preventive and corrective maintenance. The inspectors performed a detailed review of the problem history and associated circumstances, evaluated the extent of condition reviews, as required, and reviewed the generic implications of the equipment and/or work practice problem(s). Inspectors performed walkdowns of the accessible portions of the system, performed in-office reviews of procedures and evaluations, and held discussions with system engineers. The inspectors compared the | For the three equipment issues described in the condition reports listed below, the inspectors evaluated the effectiveness of the corresponding licensee's preventive and corrective maintenance. The inspectors performed a detailed review of the problem history and associated circumstances, evaluated the extent of condition reviews, as required, and reviewed the generic implications of the equipment and/or work practice problem(s). Inspectors performed walkdowns of the accessible portions of the system, performed in-office reviews of procedures and evaluations, and held discussions with system engineers. The inspectors compared the licensees actions with the requirements of the Maintenance Rule (10 CFR 50.65), station procedures ER-AA-MRL-10, Rev. 4, Maintenance Rule Program; and ER-AA-MRL-100, Rev. 1, Implementing the Maintenance Rule; the Surry Maintenance Rule Scoping and Performance Matrix. | ||
And industry guidance contained in NUMARC 93-01, Rev. 2, Industry Guidance for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants. | |||
* CR 387191, Elevated Temperatures of the AAC Diesel | * CR 387191, Elevated Temperatures of the AAC Diesel | ||
* CR 386337, Low Head Safety Injection Pump 1B is Inoperable due to High Flow | * CR 386337, Low Head Safety Injection Pump 1B is Inoperable due to High Flow during pump testing | ||
* CR 402225, Received Loss of Detector Voltage Alarm for Source Range N-35 on Unit 1 | * CR 402225, Received Loss of Detector Voltage Alarm for Source Range N-35 on Unit 1 | ||
====b. Findings==== | ====b. Findings==== | ||
No findings were identified. | No findings were identified. {{a|1R13}} | ||
{{a|1R13}} | |||
==1R13 Maintenance Risk Assessments and Emergent Work Control== | ==1R13 Maintenance Risk Assessments and Emergent Work Control== | ||
====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
The inspectors evaluated, as appropriate, for the five work activities listed below: (1) the effectiveness of the risk assessments performed before maintenance activities were conducted; (2) the management of risk; (3) that, upon identification of an unforeseen situation, necessary steps were taken to plan and control the resulting emergent work activities; and, (4) that maintenance risk assessments and emergent work problems were adequately identified and resolved. The inspectors verified that the licensee was complying with the requirements of 10 CFR 50.65(a)(4) and the data output from the | The inspectors evaluated, as appropriate, for the five work activities listed below: | ||
: (1) the effectiveness of the risk assessments performed before maintenance activities were conducted; | |||
: (2) the management of risk; | |||
: (3) that, upon identification of an unforeseen situation, necessary steps were taken to plan and control the resulting emergent work activities; and, | |||
: (4) that maintenance risk assessments and emergent work problems were adequately identified and resolved. The inspectors verified that the licensee was complying with the requirements of 10 CFR 50.65(a)(4) and the data output from the licensees safety monitor associated with the risk profile of Units 1 and 2. The inspectors reviewed the corrective action program to verify deficiencies in risk assessments were being identified and properly resolved. | |||
* On-line unplanned entry into an elevated (yellow) risk condition for Unit 2 on October 4 associated with the common emergency switchgear room door being held open without the required risk management actions in place. | * On-line unplanned entry into an elevated (yellow) risk condition for Unit 2 on October 4 associated with the common emergency switchgear room door being held open without the required risk management actions in place. | ||
* On-line unplanned entry into an elevated (yellow) risk condition for Unit 2 on October 27 associated with an issued tornado watch. | * On-line unplanned entry into an elevated (yellow) risk condition for Unit 2 on October 27 associated with an issued tornado watch. | ||
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====b. Findings==== | ====b. Findings==== | ||
No findings were identified. | No findings were identified. {{a|1R15}} | ||
{{a|1R15}} | |||
==1R15 Operability Evaluations== | ==1R15 Operability Evaluations== | ||
====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
The inspectors reviewed the six operability evaluations listed below, affecting risk-significant mitigating systems, to assess as appropriate: | The inspectors reviewed the six operability evaluations listed below, affecting risk-significant mitigating systems, to assess as appropriate: | ||
: (1) the technical adequacy of the evaluations; | |||
: (2) whether continued system operability was warranted; | |||
: (3) whether other existing degraded conditions were considered; | |||
: (4) if compensatory measures were involved, whether the compensatory measures were in place, would work as intended, and were appropriately controlled; and | |||
: (5) where continued operability was considered unjustified, the impact on TS Limiting Conditions for Operation and the risk significance. | |||
The inspectors review included verification that determinations of operability followed procedural requirements of OP-AA-102, Operability Determination. The inspectors reviewed the corrective action program to verify deficiencies in operability determinations were being identified and corrected. | |||
* CR 405545 - 1-SW-MOC-103A/103B leaking | * CR 405545 - 1-SW-MOC-103A/103B leaking | ||
* CR 399859 - Supplemental neutron shields (Benelex) are not included in GSI-191 debris load | * CR 399859 - Supplemental neutron shields (Benelex) are not included in GSI-191 debris load | ||
* CR 398124 - Microtherm | * CR 398124 - Microtherm on CRDM nozzles in Unit 1 and Unit 2 containment | ||
* CR 398628 - Unit 2 RWST chiller caught fire due to short causing breaker and cable damage | * CR 398628 - Unit 2 RWST chiller caught fire due to short causing breaker and cable damage | ||
* CA 173178 - CA to engineering to review NAPS RCE 000976, failure of CRDM fan circuit breaker | * CA 173178 - CA to engineering to review NAPS RCE 000976, failure of CRDM fan circuit breaker | ||
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====b. Findings==== | ====b. Findings==== | ||
===1. Failure To Correct Multiple Conditions Adverse to Fire Protection === | ===1. Failure To Correct Multiple Conditions Adverse to Fire Protection=== | ||
=====Introduction:===== | =====Introduction:===== | ||
A self-revealing apparent violation (AV) of Condition 1.B to the Surry Unit 1 and Unit 2 Updated Facility Operating Licenses, DPR-32 and | A self-revealing apparent violation (AV) of Condition 1.B to the Surry Unit 1 and Unit 2 Updated Facility Operating Licenses, DPR-32 and DPR-37, was identified for the licensees failure to take corrective action for degraded conditions adverse to the fire protection program. Specifically, in 2003-2004, three breakers with loads including the Unit 2 1B Refueling Water Storage Tank (RWST) chiller motor, the Unit 1 2B charging component cooling water pump, and the Unit 2 B hydrogen recombiner were identified as being oversized with respect to the Surry design standard for breaker sizing and cable protection. The failure to take corrective action on the affected breakers led to a fault on the Unit 2 RWST chiller motor 1B on October 11, 2010, and a resulting fire which damaged the electrical cable and motor controller. The fire was promptly extinguished by the fire brigade. | ||
=====Description:===== | =====Description:===== | ||
In 2003 and 2004, three plant issue reports were written: S-2004-1395, S-2004-2571, and S-2003-4662. These reports were written for a population of breakers at the station that were not appropriately sized in accordance with the original Stone and Webster design standards to protect the cables they fed. The two breakers most susceptible to a fire due to inaqequate protection for their respective cables included the Unit 2 1B RWST chiller motor and the Unit 2 B hydrogen recombiner. In addition, the Unit 1 2B charging component cooling water pump was the only safety related load identified as being unprotected. There was a two year delay before a design change package (DCP) was created to begin the process of replacing these breakers. | In 2003 and 2004, three plant issue reports were written: S-2004-1395, S-2004-2571, and S-2003-4662. These reports were written for a population of breakers at the station that were not appropriately sized in accordance with the original Stone and Webster design standards to protect the cables they fed. The two breakers most susceptible to a fire due to inaqequate protection for their respective cables included the Unit 2 1B RWST chiller motor and the Unit 2 B hydrogen recombiner. In addition, the Unit 1 2B charging component cooling water pump was the only safety related load identified as being unprotected. There was a two year delay before a design change package (DCP) was created to begin the process of replacing these breakers. | ||
On October 11, 2010, at 0824 a security officer reported a fire at the Unit 2 1B RWST chiller with arcing, fire, and smoke seen at the control panel. The fire was promptly extinguished at 0831 by the fire brigade. The chiller is located in an outside area next to the RWST inside the Radiologically Controlled Area (RCA). Additionally, smoke was reported in the upper cable vault area coming from breaker cubicle 2-EP-BKR-2C1-1E-2B, which is the breaker that feeds the RWST chiller. A subsequent inspection identified overheated and damaged cabling inside the breaker cubicle. It was discovered that the RWST chiller breaker was a 225 ampere breaker serving a single load of 28 amperes. The cable was sized as a #12 American Wire Gauge rated at 21 amperes. Plant issue report S-2004-2571 first identified that the RWST chiller breaker was oversized. The remaining population of affected breakers were later isolated from their loads as a compensatory measure to prevent additional failures. | On October 11, 2010, at 0824 a security officer reported a fire at the Unit 2 1B RWST chiller with arcing, fire, and smoke seen at the control panel. The fire was promptly extinguished at 0831 by the fire brigade. The chiller is located in an outside area next to the RWST inside the Radiologically Controlled Area (RCA). Additionally, smoke was reported in the upper cable vault area coming from breaker cubicle 2-EP-BKR-2C1-1E-2B, which is the breaker that feeds the RWST chiller. A subsequent inspection identified overheated and damaged cabling inside the breaker cubicle. | ||
It was discovered that the RWST chiller breaker was a 225 ampere breaker serving a single load of 28 amperes. The cable was sized as a #12 American Wire Gauge rated at 21 amperes. Plant issue report S-2004-2571 first identified that the RWST chiller breaker was oversized. The remaining population of affected breakers were later isolated from their loads as a compensatory measure to prevent additional failures. | |||
=====Analysis:===== | =====Analysis:===== | ||
The inspectors found that the failure to take action to correct multiple oversized breakers constituted a performance deficiency. The finding is more than minor because it adversely affected the external factors attribute (fire) of the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the Unit 2 1B RWST chiller motor and the Unit 2 B hydrogen recombiner breakers were the most susceptible to fire due to their size; also a cable fault could potentially damage safety related cables routed nearby. In addition, the Unit 1 2B charging component cooling water pump is safety related and its breaker was also unprotected. The inspectors reviewed IMC 0609, Appendix F, Attachment 1, and determined the category of post fire safe shutdown was affected and the finding required a phase 3 analysis. The significance of this finding is to be determined pending completion of the phase 3 evaluation. This finding has a cross cutting aspect in the work control component in the Human Performance area because the licensee did not appropriately plan work activities by incorporating risk insights. Specifically, although work orders were planned in 2006 they were neither prioritized consistent with their safety significance nor scheduled and completed in a timely manner. (H.3(a)). (Section 1R15.B.1) | The inspectors found that the failure to take action to correct multiple oversized breakers constituted a performance deficiency. The finding is more than minor because it adversely affected the external factors attribute (fire) of the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. | ||
Specifically, the Unit 2 1B RWST chiller motor and the Unit 2 B hydrogen recombiner breakers were the most susceptible to fire due to their size; also a cable fault could potentially damage safety related cables routed nearby. In addition, the Unit 1 2B charging component cooling water pump is safety related and its breaker was also unprotected. The inspectors reviewed IMC 0609, Appendix F, Attachment 1, and determined the category of post fire safe shutdown was affected and the finding required a phase 3 analysis. The significance of this finding is to be determined pending completion of the phase 3 evaluation. This finding has a cross cutting aspect in the work control component in the Human Performance area because the licensee did not appropriately plan work activities by incorporating risk insights. Specifically, although work orders were planned in 2006 they were neither prioritized consistent with their safety significance nor scheduled and completed in a timely manner. (H.3(a)). (Section | |||
{{a|1R15}} | |||
==1R15 .B.1)== | |||
=====Enforcement:===== | =====Enforcement:===== | ||
10 CFR Part 50.48 states, in part, that each operating nuclear power plant | 10 CFR Part 50.48 states, in part, that each operating nuclear power plant | ||
. . . must have a fire protection plan that satisfies Criterion 3 of appendix A to this part. | |||
The Surry Unit 1 Updated Facility Operating License DPR-32, and Unit 2 Updated Facility Operating License DPR-37, Condition 1.B, specify, in part, that the licensee implement and maintain in effect all provisions of the approved fire protection program as described in the UFSAR and as approved in the Safety Evaluation Report (SER) and subsequent supplements. The UFSAR requires, in part, that the fire protection program (FPP) meet Appendix A to Branch Technical Position (BTP) APCSB 9.5-1, Guidelines for Fire Protection for Nuclear Power Plants Docketed Prior to July 1, 1976," dated August 23, 1976. Section C.8 of Appendix A to BTP APCSB 9.5-1 requires, in part, that measures be established to assure conditions adverse to fire protection, such as failures, malfunctions, and deficiencies, are promptly identified, reported, and corrected. | |||
Contrary to the above, the licensee failed to take corrective action within an adequate time period for deficiencies associated with circuits where the breakers were not providing the required electrical protection for their associated cables. As a result, on October 11, 2010, a fire developed on the 1B RWST Chiller Motor due to a fault in one of the unprotected cables. The licensee has entered the issue into the CAP (CR 398628). Pending determination of safety significance, this finding is identified as: AV 05000280,281/2010005-01; Failure to Correct Multiple Conditions Adverse to Fire Protection. | |||
===2. Inadequate Risk Evaluation for Leaving Common ESGR Door Open=== | |||
=====Introduction:===== | =====Introduction:===== | ||
A licensee identified AV of 10CFR50.65 (a)(4), Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants, was revealed after the licensee discovered that 2-BS-DR-21, common emergency switchgear room (ESGR) door was blocked open for two hours without clear communication to licensed operators. The licensee did not adequately assess the increase in operational risk that resulted in the required risk management actions of fire and environmentally qualified watches not being established. The licensee immediately corrected the condition by shutting the HELB door and having security control personnel access. The issue was entered into the | A licensee identified AV of 10CFR50.65 (a)(4), Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants, was revealed after the licensee discovered that 2-BS-DR-21, common emergency switchgear room (ESGR) door was blocked open for two hours without clear communication to licensed operators. The licensee did not adequately assess the increase in operational risk that resulted in the required risk management actions of fire and environmentally qualified watches not being established. The licensee immediately corrected the condition by shutting the HELB door and having security control personnel access. The issue was entered into the licensees CAP as CR397720. | ||
=====Description:===== | =====Description:===== | ||
On October 4, 2010, the licensee discovered that 2-BS-DR-21, common emergency switchgear room (ESGR) door would not function electrically to allow access into or out of the room. The common ESGR door functions as a fire barrier, a halon suppression pressure boundary, a main control room pressure boundary, and a HELB boundary. Maintenance was planned to correct the electrical malfunction on the door. Instructions provided by licensed operators to security were to manually open the door each time access was requested. Security misunderstood the instructions and blocked open the door for approximately two hours. Upon discovery of the open ESGR door by licensed operators, the licensee entered TS 3.0.1 and declared all equipment in the common ESGR inoperable. TS 3.0.1 was exited when the ESGR door was closed and secured. | On October 4, 2010, the licensee discovered that 2-BS-DR-21, common emergency switchgear room (ESGR) door would not function electrically to allow access into or out of the room. The common ESGR door functions as a fire barrier, a halon suppression pressure boundary, a main control room pressure boundary, and a HELB boundary. Maintenance was planned to correct the electrical malfunction on the door. | ||
Instructions provided by licensed operators to security were to manually open the door each time access was requested. Security misunderstood the instructions and blocked open the door for approximately two hours. Upon discovery of the open ESGR door by licensed operators, the licensee entered TS 3.0.1 and declared all equipment in the common ESGR inoperable. TS 3.0.1 was exited when the ESGR door was closed and secured. | |||
=====Analysis:===== | =====Analysis:===== | ||
The failure to adequately assess the increased risk associated with blocking open the common ESGR door and to take the required risk management actions is a performance deficiency. This finding is more than minor because it is associated with the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, both Unit 1 and Unit 2 plant risk were not evaluated and risk management activities were not put in place when the common ESGR door was blocked open for maintenance and unable to perform its function as a fire barrier, a halon suppression pressure boundary, a main control room pressure boundary, and a HELB boundary. In accordance with IMC 0609, Appendix K, Maintenance Risk Assessment and Risk Management Significance Determination Process, this finding will require a phase 3 analysis. The significance of this finding is to be determined pending completion of the phase 3 evaluation. The inspectors determined that this finding had a cross-cutting aspect in the work control component in the human performance area because the licensee did not appropriately plan work activities by incorporating risk insights (H.3(a)). | The failure to adequately assess the increased risk associated with blocking open the common ESGR door and to take the required risk management actions is a performance deficiency. This finding is more than minor because it is associated with the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, both Unit 1 and Unit 2 plant risk were not evaluated and risk management activities were not put in place when the common ESGR door was blocked open for maintenance and unable to perform its function as a fire barrier, a halon suppression pressure boundary, a main control room pressure boundary, and a HELB boundary. In accordance with IMC 0609, Appendix K, Maintenance Risk Assessment and Risk Management Significance Determination Process, this finding will require a phase 3 analysis. The significance of this finding is to be determined pending completion of the phase 3 evaluation. The inspectors determined that this finding had a cross-cutting aspect in the work control component in the human performance area because the licensee did not appropriately plan work activities by incorporating risk insights (H.3(a)). | ||
=====Enforcement:===== | =====Enforcement:===== | ||
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====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
For the five risk-significant maintenance activities listed below, the inspectors reviewed the associated post maintenance testing (PMT) procedures and either witnessed the testing and/or reviewed completed records to assess whether: | For the five risk-significant maintenance activities listed below, the inspectors reviewed the associated post maintenance testing (PMT) procedures and either witnessed the testing and/or reviewed completed records to assess whether: | ||
* Unit 1 turbine driven auxiliary feedwater pump maintenance per W.O.s 38102562086 & 038102544025 | : (1) the effect of testing on the plant had been adequately addressed by control room and/or engineering personnel; | ||
: (2) testing was adequate for the maintenance performed; | |||
: (3) test acceptance criteria were clear and adequately demonstrated operational readiness consistent with design and licensing basis documents; | |||
: (4) test instrumentation had current calibrations, range, and accuracy consistent with the application; | |||
: (5) test were performed as written with applicable prerequisites satisfied; | |||
: (6) jumpers installed or leads lifted were properly controlled; | |||
: (7) test equipment was removed following testing; and | |||
: (8) equipment was returned to the status required to perform its safety function. The inspectors reviewed the corrective action program to verify PMT deficiencies were being identified and corrected. Documents reviewed are listed in the Attachment. | |||
* Unit 1 turbine driven auxiliary feedwater pump maintenance per W.O.s 38102562086 | |||
& 038102544025 | |||
* Accumulator discharge check valve replacement per W.O.s 38102856653 and 38102585535. | * Accumulator discharge check valve replacement per W.O.s 38102856653 and 38102585535. | ||
* 1-PT-11.0, Rev.18, Reactor Coolant Pressure Test | * 1-PT-11.0, Rev.18, Reactor Coolant Pressure Test | ||
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====b. Findings==== | ====b. Findings==== | ||
No findings were identified. | No findings were identified. {{a|1R20}} | ||
{{a|1R20}} | |||
==1R20 Refueling and Other Outage Activities== | ==1R20 Refueling and Other Outage Activities== | ||
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====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
In accordance with NRC Inspection Procedure 71111.20, | In accordance with NRC Inspection Procedure 71111.20, Refuelling and Outage Activities, the inspectors monitored licensee controls over the outage activities listed below for the Unit 1 Refueling Outage (RFO) that began on October 24, 2010 and ended November 30, 2010. | ||
Prior to the outage, the inspectors reviewed the | |||
Review of Outage Plan: | |||
Prior to the outage, the inspectors reviewed the Surry Unit 1 2010 RFO Shutdown Risk Review Report to verify the licensee had appropriately considered risk, industry operating experience, and previous site specific problems. | |||
The inspectors verified the outage impact on defense-in-depth for the five shutdown critical safety functions; electrical power availability, inventory control, decay heat removal, reactivity control, and containment; had been appropriately considered and that the Licensee had planned to provide adequate defense-in-depth for each safety function or had established contingencies to minimize the overall risk where redundancy was limited or not available. | |||
On a routine basis, the inspectors reviewed the refueling outage work plan and daily shutdown risk assessments. Periodic updates to the Surry Unit 1 2010 RFO Shutdown Risk Review Report, accounting for schedule changes and unplanned activities, were also reviewed. Detailed risk reviews for specific high risk periods/activities are documented in section 1R13 of this report. | |||
Licensee control of Outage Activities: | Monitoring of Shutdown Activities: | ||
The inspectors observed portions of the reactor shutdown and plant cooldown to assess operator performance with respect to communications, command and control, procedure adherence, and compliance with Technical Specification cooldown limits. Upon shutdown, the inspectors conducted a thorough containment walkdown to identify structures, piping, and supports in containment with stains or deposited material that could indicate previously unidentified leakage from components containing reactor coolant and/or signs of physical damage. | |||
Licensee control of Outage Activities: | |||
The inspectors on a sampling basis monitored the outage activities listed below. | |||
* Licensee configuration management, including daily outage reports, to evaluate defense-in-depth commensurate with the outage safety plan and compliance with the applicable TS when taking equipment out of service. | * Licensee configuration management, including daily outage reports, to evaluate defense-in-depth commensurate with the outage safety plan and compliance with the applicable TS when taking equipment out of service. | ||
* Controls over the status and configuration of electrical systems and switchyard to ensure that TS and outage safety plan requirements were met. | * Controls over the status and configuration of electrical systems and switchyard to ensure that TS and outage safety plan requirements were met. | ||
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* Reactivity controls to verify compliance with TS and those activities which could affect reactivity were reviewed for proper control within the outage risk plan. | * Reactivity controls to verify compliance with TS and those activities which could affect reactivity were reviewed for proper control within the outage risk plan. | ||
* Refueling activities for compliance with TS, to verify proper tracking of fuel assemblies from the spent fuel pool to the core, and to verify foreign material exclusion was maintained. | * Refueling activities for compliance with TS, to verify proper tracking of fuel assemblies from the spent fuel pool to the core, and to verify foreign material exclusion was maintained. | ||
* Containment closure activities, including a detailed containment walkdown prior to startup, to verify that evidence of leakage did not exist and that debris had not been left which could affect the performance of the containment sump. Control of Heavy Loads: | * Containment closure activities, including a detailed containment walkdown prior to startup, to verify that evidence of leakage did not exist and that debris had not been left which could affect the performance of the containment sump. | ||
Control of Heavy Loads: | |||
The inspectors verified station procedures for heavy load lifts were consistent with station analysis and Appendix 9B of the UFSAR to ensure that heavy load lifts were conducted safely. The inspectors reviewed actions to manage the increased risk during these activities and observed the heavy load lift for the Unit 1 reactor vessel head removal and installation of the 1B reactor coolant pump. | |||
Refueling Activities: | |||
The inspectors, on a sampling basis, verified the requirements of TS 3.10, Refueling, were met, and that refueling activities were conducted in accordance with station procedures. Activities were monitored from the control room and refueling bridge to observe the communications and coordination between personnel and to verify core reactivity was controlled and fuel movement was accomplished and tracked in accordance with the fuel movement schedule. The inspectors reviewed the video recording of the core verification to independently verify the as-loaded core configuration matched the designed core reload configuration for Unit 1 cycle 23. | |||
Monitoring of Heat-up and Startup Activities: | Monitoring of Heat-up and Startup Activities: | ||
Prior to startup, the inspectors examined the spaces inside the containment building to verify that debris had not been left which could affect performance of the containment sumps. On a sampling basis the inspectors verified that technical specification, license conditions, and other requirements, commitments, and administrative procedure prerequisites were met for changes in plant configurations/modes. The inspectors performed control room observations, plant walkdowns, reviewed main control board indicators, operator logs, plant computer information, and station procedures to monitor the startup evolution. Control room observations included the approach to criticality, critical operations, low power physics testing, and the synchronization of the main turbine generator to the electrical grid. | |||
====b. Findings==== | ====b. Findings==== | ||
Heavy Load Lift of the 1B RCP Motor Over Exposed Reactor Fuel | Heavy Load Lift of the 1B RCP Motor Over Exposed Reactor Fuel | ||
=====Introduction:===== | =====Introduction:===== | ||
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=====Analysis:===== | =====Analysis:===== | ||
Transport of the 1B reactor coolant pump motor over the exposed reactor core | Transport of the 1B reactor coolant pump motor over the exposed reactor core is a performance deficiency. The finding is more than minor because it can reasonably be viewed as a precursor to a significant event, the heavy load traveled over exposed irradiated fuel with the reactor vessel head removed. In accordance with NRC Inspection Manual Chapter (IMC) 0609, Appendix G, Shutdown Operations Significance Determination Process, Attachment 1, Checklist 4, the inspectors conducted a Phase 1 SDP screening and determined the finding required a Phase 2 analysis. The Phase 2 analysis determined the finding is of very low safety significance (Green) because: (1)there is a low probability of dropping the load based on a study in NUREG-1774 performed for crane operating experience; | ||
: (2) the polar crane was in working condition and had no known deficiencies that would have affected the cranes ability to lift the load; and, | |||
: (3) the duration of the heavy load lift over the exposed reactor core was very short. In addition, in accordance with NRC IMC 0609, Appendix H, Containment Integrity SDP, the finding would not contribute to LERF due to the time since the reactor was shutdown. The finding has a cross-cutting aspect in the work practices component of the Human Performance area because plant supervisors failed to properly supervise workers executing procedure steps (H.4(c)). | |||
=====Enforcement:===== | =====Enforcement:===== | ||
TS 6.4, Unit Operating Procedures and Programs, states that detailed written procedures with appropriate check-off lists and instructions shall be provided and followed. Procedure GMP-001, Heavy Load Rigging and Movement, was established to perform this maintenance activity, which requires in Attachment 2 that heavy loads follow the approved safe load path. Contrary to the above, the licensee moved the 1B RCP motor over the exposed reactor fuel which deviated from the safe load path as outlined in the procedure. Because this finding is of very low safety significance and has been entered into the | TS 6.4, Unit Operating Procedures and Programs, states that detailed written procedures with appropriate check-off lists and instructions shall be provided and followed. Procedure GMP-001, Heavy Load Rigging and Movement, was established to perform this maintenance activity, which requires in Attachment 2 that heavy loads follow the approved safe load path. Contrary to the above, the licensee moved the 1B RCP motor over the exposed reactor fuel which deviated from the safe load path as outlined in the procedure. Because this finding is of very low safety significance and has been entered into the licensees CAP (CR 404106), this violation is being treated as an NCV, consistent with Section 2.3.2 of the NRC Enforcement Policy and is identified as: NCV 05000280/2010005-03; Heavy Load Lift of the 1B RCP Motor Over Exposed Reactor Fuel | ||
{{a|1R22}} | |||
==1R22 Surveillance Testing== | |||
====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
The inspectors witnessed and/or reviewed test records for the seven risk-significant surveillance tests listed below, to determine the SSCs | The inspectors witnessed and/or reviewed test records for the seven risk-significant surveillance tests listed below, to determine the SSCs operational readiness and whether the SSCs selected meet the Technical Specifications (TS), Updated Final Safety Analysis Report (UFSAR), and licensees procedure requirements and if the test adequately demonstrated that the SSCs are capable of performing their intended safety functions (under conditions as close as practical to accident conditions or as required by TS). | ||
In-Service Testing: | |||
* 1-OPT-RS-001, Rev. 20; Containment Outside Recirculation Spray Pumps Flow and Leak Test | * 1-OPT-RS-001, Rev. 20; Containment Outside Recirculation Spray Pumps Flow and Leak Test | ||
* 1-OPT-RH-003, Rev. 17; RHR System Operability Test | * 1-OPT-RH-003, Rev. 17; RHR System Operability Test Surveillance Testing: | ||
* 1-OPT-ZZ-002, Rev. 30; ESF Actuation with Undervoltage and Degraded Voltage - 1J Bus | * 1-OPT-ZZ-002, Rev. 30; ESF Actuation with Undervoltage and Degraded Voltage - | ||
1J Bus | |||
* 1-OSP-SW-007, Rev 5; Service Water Flow Test of Recirculation Spray Heat Exchangers 1-RS-E-1A and 1-RS-E-1D | * 1-OSP-SW-007, Rev 5; Service Water Flow Test of Recirculation Spray Heat Exchangers 1-RS-E-1A and 1-RS-E-1D | ||
* 1-OSP-TM-003, Rev. 11; Functional Check of Turbine Valves Stroke and Limit Switch Operation | * 1-OSP-TM-003, Rev. 11; Functional Check of Turbine Valves Stroke and Limit Switch Operation Containment Isolation Valve | ||
* 1-OPT-CT-201, Rev. 20; Containment isolation Valve Local Leak Rate Testing, Penetration 57C | * 1-OPT-CT-201, Rev. 20; Containment isolation Valve Local Leak Rate Testing, Penetration 57C | ||
* 1-OPT-CT-201, Rev. 20; Containment isolation Valve Local Leak Rate Testing, Penetration 92 | * 1-OPT-CT-201, Rev. 20; Containment isolation Valve Local Leak Rate Testing, Penetration 92 | ||
====b. Findings==== | ====b. Findings==== | ||
Failure to Follow Procedure Results in Inadvertent Actuation of Safety Injection | Failure to Follow Procedure Results in Inadvertent Actuation of Safety Injection | ||
=====Introduction:===== | =====Introduction:===== | ||
Line 346: | Line 424: | ||
On October 26, 2010, while Unit 1 was in cold shutdown, licensee personnel were in the Unit 1 relay room setting up test equipment to support the upcoming H bus undervoltage and degraded voltage logic testing in accordance with 1-OPT-ZZ-001, ESF Actuation with Undervoltage and Degraded Voltage 1H Bus. Step 6.1.8 aligns the A train of CLS for testing and connects digital multimeters for system actuation monitoring. On step 6.1.8.m, the electrician inadvertently contacted the test lead to a non-targeted component in the cabinet and a spark was observed with a subsequent popping sound. | On October 26, 2010, while Unit 1 was in cold shutdown, licensee personnel were in the Unit 1 relay room setting up test equipment to support the upcoming H bus undervoltage and degraded voltage logic testing in accordance with 1-OPT-ZZ-001, ESF Actuation with Undervoltage and Degraded Voltage 1H Bus. Step 6.1.8 aligns the A train of CLS for testing and connects digital multimeters for system actuation monitoring. On step 6.1.8.m, the electrician inadvertently contacted the test lead to a non-targeted component in the cabinet and a spark was observed with a subsequent popping sound. | ||
The control room received annunciators for logic actuation and safety injection with an immediate indication that the high head safety injection system was pumping through the cold leg injection path. Operators immediately entered AP-10.20, Response To Spurious Safety Injection With RCS Temperature Less Than | The control room received annunciators for logic actuation and safety injection with an immediate indication that the high head safety injection system was pumping through the cold leg injection path. Operators immediately entered AP-10.20, Response To Spurious Safety Injection With RCS Temperature Less Than 350F. Injection was terminated after three minutes. Pressurizer level had increased from approximately 23 percent to 42 percent. The Auxiliary Building Filter Exhaust Fans and EDG #1 auto started due to the logic signal. The logic signal also initiated an A train containment isolation, which resulted in the component cooling water supply valve to the A train of Residual Heat Removal (RHR) Heat Exchanger going closed. | ||
=====Analysis:===== | =====Analysis:===== | ||
Failure to install the test leads as required by procedure 1-OPT-ZZ-001 is a performance deficiency. The finding is more than minor because it is associated with the configuration control attribute of the Initiating Events Cornerstone and adversely affected the | Failure to install the test leads as required by procedure 1-OPT-ZZ-001 is a performance deficiency. The finding is more than minor because it is associated with the configuration control attribute of the Initiating Events Cornerstone and adversely affected the cornerstones objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. The finding, evaluated in accordance with NRC Inspection Manual Chapter (IMC) 0609, Appendix G, Shutdown Operations Significance Determination Process, 1, Checklist 3, identified the finding is of very low safety significance (Green)because the finding did not lead to a loss of decay heat removal. This finding has a cross cutting aspect in the work practices component in the Human Performance area, because human error prevention techniques were not properly used commensurate with the risk significance of the assigned task (H.4(a)). | ||
=====Enforcement:===== | =====Enforcement:===== | ||
TS 6.4, Unit Operating Procedures and Programs, states that detailed written procedures with appropriate check-off lists and instructions shall be provided and followed. Contrary to the above, on October 26, 2010, the licensee failed to follow procedure 1-OPT-ZZ-001, ESF Actuation with Undervoltage and Degraded Voltage 1H Bus, resulting in an inadvertent actuation of safety injection. Because this finding is of very low safety significance and has been entered into the | TS 6.4, Unit Operating Procedures and Programs, states that detailed written procedures with appropriate check-off lists and instructions shall be provided and followed. Contrary to the above, on October 26, 2010, the licensee failed to follow procedure 1-OPT-ZZ-001, ESF Actuation with Undervoltage and Degraded Voltage 1H Bus, resulting in an inadvertent actuation of safety injection. Because this finding is of very low safety significance and has been entered into the licensees CAP (CR 400908),this violation is being treated as a NCV, consistent with Section 2.3.2 of the NRC Enforcement Policy and is identified as: NCV 05000280/2010005-02, Failure to Follow Procedure Results in Inadvertent Actuation of Safety Injection. | ||
this violation is being treated as a NCV, consistent with Section 2.3.2 of the NRC Enforcement Policy and is identified as: NCV 05000280/2010005-02, Failure to Follow Procedure Results in Inadvertent Actuation of Safety Injection. | |||
==RADIATION SAFETY== | ==RADIATION SAFETY== | ||
Cornerstones: | Cornerstones: Occupational Radiation Safety (OS) and Public Radiation Safety (PS) {{a|2RS1}} | ||
{{a|2RS1}} | |||
==2RS1 Radiological Hazard Assessment and Exposure Controls== | ==2RS1 Radiological Hazard Assessment and Exposure Controls== | ||
====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
Hazard Assessment and Instructions to workers | Hazard Assessment and Instructions to workers During facility tours, the inspectors observed labeled radioactive material, postings for radiation areas and high radiation areas (HRAs) in the radiologically controlled area (RCA), and radioactive waste (radwaste) processing and storage locations. Inspectors also observed and evaluated labels on selected containers. The inspectors reviewed survey records for several plant areas including surveys for alpha emitters, hot particles, airborne radioactivity, gamma surveys within areas of high dose rate gradients, and pre-job surveys for upcoming tasks. Inspectors independently surveyed areas in the plant and compared results to radiological conditions and postings in the plant. Inspectors also reviewed air sample records and observed work in potential airborne areas to assess the location of air monitors. | ||
The inspectors discussed changes to plant operations that could contribute to changing radiological conditions since the last inspection. Inspectors attended pre-job briefings for selected tasks and reviewed Radiation Work Permit (RWP) details to assess communication of radiological control requirements and current radiological conditions to workers. RWPs for work in airborne areas were also reviewed to assess airborne radioactive controls and monitoring. | The inspectors discussed changes to plant operations that could contribute to changing radiological conditions since the last inspection. Inspectors attended pre-job briefings for selected tasks and reviewed Radiation Work Permit (RWP) details to assess communication of radiological control requirements and current radiological conditions to workers. RWPs for work in airborne areas were also reviewed to assess airborne radioactive controls and monitoring. | ||
Work Practices | Work Practices The inspectors evaluated access barrier effectiveness including key control for selected U1 and U2 Locked High Radiation Area (LHRA) and Very High Radiation Areas (VHRA) locations. Changes to procedural guidance for LHRA and VHRA controls were discussed with Health Physics (HP) supervisors. Controls and their implementation for storage of irradiated material within the Spent Fuel Pool (SFP) were reviewed and discussed. Areas where dose rates could change significantly as a result of plant shutdown and refueling operations were also discussed. | ||
Occupational workers adherence to selected RWPs and HP technician (HPT)proficiency in providing job coverage were evaluated through direct observations and interviews with licensee staff. Electronic Dosimeter (ED) alarm set points and worker stay times were evaluated against area radiation survey results for jobs in lower containment and lower annulus. ED alarm logs were reviewed and worker response to dose and dose rate alarms during selected work activities was evaluated. HPT coverage and actions at the Unit 1 containment access point were reviewed and discussed in detail. | |||
Control of Radioactive Material The inspectors observed surveys of material and personnel being released from the RCA using small article monitor, personnel contamination monitor, and portal monitor instruments. The inspectors discussed equipment sensitivity, alarm setpoints, and release program guidance with licensee staff. | |||
In addition, the inspector reviewed controls for hand surveying large tools and equipment for release from the RCA and the PA. The inspectors also reviewed source inventory and discussed leak tests for selected sealed sources, and discussed nationally tracked source transactions with licensee staff. | |||
Problem Identification and Resolution The inspectors reviewed selected Condition Reports (CR) associated with radiological hazard assessment and control. The reviewed items included CRs, self-assessments, and quality assurance audit documents. The inspectors evaluated the licensees ability to identify and resolve the issues in accordance with procedure PI-AA-200, Corrective Action. | |||
Radiation protection activities were evaluated against the requirements of Updated Final Safety Analysis Report (UFSAR) Section 12; Technical Specification (TS), Section 6.4 10 CFR Parts 19 and 20; and approved licensee procedures. Licensee programs for monitoring materials and personnel released from the RCA were evaluated against 10 CFR Part 20 and IE Circular 81-07, Control of Radioactively Contaminated Material. | |||
Documents reviewed are listed in Section 2RS1 of the Attachment. | |||
The inspectors completed all specified line-items detailed in Inspection Procedure (IP) 71124.01. | The inspectors completed all specified line-items detailed in Inspection Procedure (IP)71124.01. | ||
====b. Findings==== | ====b. Findings==== | ||
No findings were identified. | No findings were identified. | ||
{{a|2RS2}} | |||
{{a|2RS2}} | |||
==2RS2 As Low As Reasonably Achievable (ALARA)== | ==2RS2 As Low As Reasonably Achievable (ALARA)== | ||
====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
ALARA Program Status | ALARA Program Status The inspectors reviewed and discussed plant exposure history and current trends including the sites Three-Year Rolling Average (TYRA) collective exposure history for calendar year (CY) 2007, through CY 2009. Current and proposed activities to manage site collective exposure and trends regarding collective exposure were evaluated through review of previous TYRA collective exposure data, and review of the licensees 5-year ALARA program implementing plan. The inspectors reviewed the Licensees implementation of the use of Tungsten Vest as an ALARA tool and inspectors reviewed Licensees position paper, procedures, training records, survey methods, and dosimetry results for implementation of Effective Dose Equivalent (EDE)per Regulatory Guide 8.4, Methods for Measuring Effective Dose Equivalent from External Exposure, US Nuclear Regulatory Commission, July 2010, for compliance. | ||
Current ALARA program guidance and recent changes, as applicable, regarding estimating and tracking exposure were discussed and evaluated | Current ALARA program guidance and recent changes, as applicable, regarding estimating and tracking exposure were discussed and evaluated. | ||
Work activities, exposure estimates and mitigation activities were reviewed for the following high collective exposure tasks: | Radiological Work Planning The inspectors reviewed planned work activities and their collective exposure estimates for the current Unit 1 Refueling Outage (RFO). Work activities, exposure estimates and mitigation activities were reviewed for the following high collective exposure tasks: reactor head disassembly and re-assembly; U1 containment scaffold installation and removal; and coatings, painting and all associated work in U1 containment. For the selected tasks, the inspectors reviewed dose mitigation actions and established dose goals. During the inspection, use of remote technologies including teledosimetry and remote visual monitoring were verified as specified in RWP or procedural guidance. Current collective dose data for selected tasks were compared with established estimates and, where applicable, changes to established estimates were discussed with responsible licensee ALARA Planning representatives. The inspectors reviewed previous post-job reviews conducted for the U2 RFO and verified that the items were entered into the licensees corrective action program for evaluation. | ||
Verification of Dose Estimates and Exposure Tracking Systems The inspectors reviewed select ALARA work packages and discussed assumptions with responsible planning personal regarding the bases for the current estimates. The licensees on-line RWP cumulative dose data bases used to track and trend current personal and cumulative exposure data and/or to trigger additional ALARA Planning activities in accordance with current procedures were reviewed and discussed. Selected work-in-progress reviews for S/G secondary side activities and adjustments to cumulative exposure estimate data were evaluated against work scope changes or unanticipated elevated dose rates. | |||
Source Term Reduction and Control The inspectors reviewed historical dose rate trends for shutdown chemistry, cleanup, and resultant chemistry and radiation protection trend-point data against the current U1 RFO data. Licensee actions to mitigate noble gas and iodine exposures resulting from fuel leaks were discussed in detail. | |||
Problem Identification and Resolution The inspectors reviewed and discussed selected CRs associated with ALARA program implementation. The reviewed items included CRs, self-assessments, and quality assurance audit documents. The inspectors evaluated the licensees ability to identify, characterize, prioritize, and resolve the identified issues in accordance with licensee procedure PI-AA-200, Corrective Action. | |||
The licensees ALARA program activities and results were evaluated against the requirements of UFSAR Section 12; Technical Specification (TS), Section 6.4; 10 CFR Parts 19 and 20; and approved licensee procedures. Records reviewed are listed in Sections 2RS1 and 2RS2 of the Attachment. | |||
Radiation worker performance was reviewed as part of observations conducted for IP 71124.01 and is documented in section 2RS1. | Radiation worker performance was reviewed as part of observations conducted for IP 71124.01 and is documented in section 2RS1. | ||
====b. Findings==== | ====b. Findings==== | ||
No findings were identified. | No findings were identified. | ||
{{a|2RS3}} | {{a|2RS3}} | ||
==2RS3 In-Plant Airborne Radioactivity Control and Mitigation== | ==2RS3 In-Plant Airborne Radioactivity Control and Mitigation== | ||
====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
Engineering Controls: The inspectors reviewed the use of temporary and permanent engineering controls to mitigate airborne radioactivity during the refueling outage including the Containment Purge and Auxiliary Ventilation systems. The inspectors observed the use of high efficiency particulate air ventilation and vacuums to control contamination during surface disturbing work. Use of containment purge to reduce airborne levels in general areas was reviewed. The inspectors evaluated the effectiveness of continuous air monitors and air samplers placed in work areas to provide indication of increasing airborne levels. Use of Respiratory Protection Devices | Engineering Controls: The inspectors reviewed the use of temporary and permanent engineering controls to mitigate airborne radioactivity during the refueling outage including the Containment Purge and Auxiliary Ventilation systems. The inspectors observed the use of high efficiency particulate air ventilation and vacuums to control contamination during surface disturbing work. Use of containment purge to reduce airborne levels in general areas was reviewed. The inspectors evaluated the effectiveness of continuous air monitors and air samplers placed in work areas to provide indication of increasing airborne levels. | ||
Use of Respiratory Protection Devices The inspectors reviewed the use of respiratory protection devices to limit the intake of radioactive material. This included review of devices used for routine tasks and devices stored for use in emergency situations. | |||
Selected Self-Contained Breathing Apparatus (SCBA) units, negative pressure respirators (NPRs), and Powered Air Purifying Respirators (PAPRs) staged for routine and emergency use in the Main Control Room and other locations were inspected for material condition, SCBA bottle air pressure, the number of units, and the number of spare masks and air bottles available. The inspectors reviewed maintenance records for selected SCBA units for the past two years and evaluated SCBA and NPR compliance with National Institute for Occupational Safety and Health certification requirements. | |||
The inspectors also reviewed records of air quality testing for supplied-air devices and SCBA bottles. | |||
The inspectors verified the licensee has procedures in place to ensure that the use of respiratory protection devices was ALARA when engineering controls were not practicable. Due to limited respirator use during the period of inspection, the training curriculum for respiratory protection users was reviewed for various types of respiratory protection devices and radworkers and control room operators were interviewed on the use of the devices including SCBA bottle change-out and use of corrective lens inserts. | The inspectors verified the licensee has procedures in place to ensure that the use of respiratory protection devices was ALARA when engineering controls were not practicable. Due to limited respirator use during the period of inspection, the training curriculum for respiratory protection users was reviewed for various types of respiratory protection devices and radworkers and control room operators were interviewed on the use of the devices including SCBA bottle change-out and use of corrective lens inserts. | ||
Respirator qualification records and medical fitness records were reviewed for several Main Control Room operators and emergency responder personnel in the Maintenance and RP departments. In addition, qualifications for individuals responsible for testing and repairing SCBA vital components were evaluated through review of training records. The inspectors verified that the licensee has procedural requirements in place for evaluating air samples for the presence of alpha emitters, and reviewed airborne radioactivity and contamination survey records for several plant areas to ensure air samples are screened and evaluated per the procedure requirements. | Respirator qualification records and medical fitness records were reviewed for several Main Control Room operators and emergency responder personnel in the Maintenance and RP departments. In addition, qualifications for individuals responsible for testing and repairing SCBA vital components were evaluated through review of training records. | ||
The inspectors verified that the licensee has procedural requirements in place for evaluating air samples for the presence of alpha emitters, and reviewed airborne radioactivity and contamination survey records for several plant areas to ensure air samples are screened and evaluated per the procedure requirements. | |||
The inspectors walked-down the respirator issue and storage locations and verified that the equipment was appropriately stored and maintained. Records of monthly and quarterly inventory and inspection of the equipment were also reviewed by the inspectors. The inspectors discussed the process for issuing respirators, and verified that selected individuals qualified for respirator and/or self-contained breathing apparatus (SCBA) use had completed the required training, fit-test, and medical evaluation. | |||
In addition, the inspectors walked-down the compressor used for filling SCBA bottles and reviewed records of Grade D air testing for the compressor and service air systems. | |||
The ability to fill and transport bottles to the control room during an emergency was assessed by the inspectors. | |||
Self-Contained Breathing Apparatus for Emergency Use The inspectors reviewed the status and surveillance records of SCBAs staged for in-plant use during emergencies through review of records and walk-down of SCBA staged in the control room, technical support center, and operations support center. The walk-down verified the appropriate number of SCBA kits were staged as specified by the emergency plan, appropriate mask sizes and types available for use, and, through interviews, that users were knowledgeable of storage locations of SCBA, spare masks, and vision correction, as well as how to don and use the equipment. Selected maintenance records for SCBA units and air cylinder hydrostatic testing documentation were reviewed. | |||
Problem Identification and Resolution Licensee CAP documents associated with the control and mitigation of in-plant radioactivity were reviewed and assessed. This included review of selected CRs related to use of respiratory protection devices including SCBA. The inspectors evaluated the licensees ability to identify, characterize, prioritize, and resolve the identified issues in accordance with procedure PI-AA-200, Corrective Action. The inspectors also evaluated the scope of the licensees internal audit program and reviewed recent assessment results. Licensee CAP documents reviewed are listed in Section 2RS3 of the Attachment. | |||
Radiation protection activities were evaluated against the requirements UFSAR Section 11; 10 CFR Parts 19 and 20; Regulatory Guide 8.15, Acceptable Programs for Respiratory Protection; and approved licensee procedures. Records reviewed are listed in Section 2RS3 of the Attachment. | |||
Radiation protection activities were evaluated against the requirements UFSAR Section 11; 10 CFR Parts 19 and 20; Regulatory Guide 8.15, Acceptable Programs for Respiratory Protection; and approved licensee procedures. Records reviewed are listed in Section | |||
====b. Findings==== | ====b. Findings==== | ||
Line 422: | Line 519: | ||
====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
The inspectors sampled licensee data for the Performance Indicators (PIs) listed below. To verify the accuracy of the PI data reported during the period reviewed, PI definitions and guidance contained in NEI 99-02, Regulatory Assessment Indicator Guideline, Rev. 6, were used to verify the basis for each data element. | The inspectors sampled licensee data for the Performance Indicators (PIs) listed below. | ||
To verify the accuracy of the PI data reported during the period reviewed, PI definitions and guidance contained in NEI 99-02, Regulatory Assessment Indicator Guideline, Rev. | |||
6, were used to verify the basis for each data element. | |||
===.1 Mitigating Systems Cornerstone=== | ===.1 Mitigating Systems Cornerstone=== | ||
Mitigating Systems Performance Index (MSPI) | |||
Mitigating Systems Performance Index (MSPI) | |||
The inspectors reviewed, on a sampling basis, the Mitigating Systems Performance Index performance indicators (PI) for Units 1 and 2 for the fourth quarter 2009 through the third quarter of 2010. The evaluation included verification of compliance with the licensees NRC Mitigating System Performance Index Basis Document, and review of selected consolidated entry forms for accuracy of information entered into the MSPI calculation computer program. Data reviewed for the monitored components included unavailability, reliability and run times; the number of starts, and failures to start and run. | |||
Information from logs and other plant documentation was used to verify the data was accurate. The data gathering and entry was discussed with cognizant personnel | |||
* Unit 1 and 2 High Pressure Injection System | * Unit 1 and 2 High Pressure Injection System | ||
* Unit 1 and 2 Cooling Water System | * Unit 1 and 2 Cooling Water System | ||
Line 431: | Line 536: | ||
===.2 Occupational Radiation Safety Cornerstone=== | ===.2 Occupational Radiation Safety Cornerstone=== | ||
The inspectors reviewed the Occupational Exposure Control Effectiveness PI results for the ORS Cornerstone from January, to October 2010. For the assessment period, the inspectors reviewed ED alarm logs and selected CRs related to controls for exposure significant areas. The inspectors also reviewed licensee procedural guidance for collecting and documenting PI data. Documents reviewed are listed in sections 2RS1 and 4OA1 of the Attachment. | |||
Reviewed documents are listed in Section | Public Radiation Safety (PS) Cornerstone The inspectors reviewed the Radiological Effluent Technical Specification/Offsite Dose Calculation Manual Radiological Effluent Occurrences PI results from January, through October 2010. The inspectors reviewed CRs, effluent dose data, and licensee procedural guidance for classifying and reporting PI events. The inspectors also interviewed licensee personnel responsible for collecting and reporting the PI data. | ||
Reviewed documents are listed in Section 4OA1 of the Attachment. | |||
====b. Findings==== | ====b. Findings==== | ||
No findings were identified. | No findings were identified. | ||
{{a|4OA2}} | |||
{{a|4OA2}} | |||
==4OA2 Identification and Resolution of Problems== | ==4OA2 Identification and Resolution of Problems== | ||
===.1 Daily Reviews of items Entered into the Corrective Action Program:=== | ===.1 Daily Reviews of items Entered into the Corrective Action Program:=== | ||
As required by NRC Inspection Procedure 71152, | |||
As required by NRC Inspection Procedure 71152, Identification and Resolution of Problems, and in order to help identify repetitive equipment failures or specific human performance issues for follow-up, the inspectors performed a daily screening of items entered into the licensees CAP. This review was accomplished by reviewing daily CR report summaries and periodically attending daily CR Review Team meetings. | |||
===.2 Semi-Annual Trend Review=== | ===.2 Semi-Annual Trend Review=== | ||
====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
As required by Inspection Procedure 71152, Identification and Resolution of Problems, the inspectors performed a review of the | As required by Inspection Procedure 71152, Identification and Resolution of Problems, the inspectors performed a review of the licensees corrective action program and associated documents to identify trends that could indicate the existence of a more significant safety issue. The inspectors review focused on repetitive equipment and corrective maintenance issues but also considered the results of daily inspector corrective action program item screening. The review also included issues documented outside the normal correction action program in system health reports; self-assessment reports, control room status logs, and lists of control room deficiencies. The inspectors review nominally considered the twelve-month period of January 1, 2010 through December 31, 2010. | ||
====b. Findings and Observations==== | ====b. Findings and Observations==== | ||
No findings were identified. In general, the licensee has identified trends and has appropriately addressed the trends with their CAP. | No findings were identified. In general, the licensee has identified trends and has appropriately addressed the trends with their CAP. | ||
{{a|4OA5}} | {{a|4OA5}} | ||
Line 464: | Line 566: | ||
====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
During the inspection period, the inspectors conducted observations of security force personnel and activities to ensure that the activities were consistent with the licensee security procedures and regulatory requirements relating to nuclear plant security. These observations took place during both normal and off-normal plant working hours. These quarterly resident inspector observations of security force personnel and activities did not constitute any additional inspection samples. Rather, they were considered an integral part of the inspectors | During the inspection period, the inspectors conducted observations of security force personnel and activities to ensure that the activities were consistent with the licensee security procedures and regulatory requirements relating to nuclear plant security. | ||
These observations took place during both normal and off-normal plant working hours. | |||
These quarterly resident inspector observations of security force personnel and activities did not constitute any additional inspection samples. Rather, they were considered an integral part of the inspectors normal plant status review and inspection activities. | |||
====b. Findings==== | ====b. Findings==== | ||
No findings were identified. | No findings were identified. | ||
===.2 (Closed) TI 2515/179 Verification of Licensee Responses to NRC Requirement for Inventories of Materials Tracked in the National Source Tracking System (NSTS) | ===.2 (Closed) TI 2515/179 Verification of Licensee Responses to NRC Requirement for=== | ||
The inspectors reviewed the source inventories and identified category 1 and 2 sources that required reporting. The inspectors visually verified the presence of the applicable apparatus and verified presence of the sources by means of a radiation survey through the shielding using a handheld survey meter. The inspectors reviewed the licensees | |||
Inventories of Materials Tracked in the National Source Tracking System (NSTS) | |||
The inspectors reviewed the source inventories and identified category 1 and 2 sources that required reporting. The inspectors visually verified the presence of the applicable apparatus and verified presence of the sources by means of a radiation survey through the shielding using a handheld survey meter. The inspectors reviewed the licensees records of the submittals to the NSTS. This activity was performed concurrently with the performance of IP 71124.01. Since there were no identified compliance issues, TI 2515/179 is deemed to be complete for this licensee. | |||
{{a|4OA6}} | {{a|4OA6}} | ||
==4OA6 Meetings, Including Exit== | ==4OA6 Meetings, Including Exit== | ||
On November 19, 2010, the inspectors discussed results of the onsite radiation protection inspection with Mr. Bischof, Site Vice-President, and other cognizant licensee representatives. The inspectors noted that proprietary information was reviewed during the course of the inspection but would not be included in the documented report. On January 11, 2011 the inspection results were presented to Mr. Bischof and other members of his staff, who acknowledged the findings. The inspectors asked the licensee whether any of the material examined during the inspection should be considered proprietary. No proprietary information was identified. | ===Exit Meeting Summary=== | ||
An interim exit with licensee management and staff was conducted on November 6 and the final exit with licensee management and staff was conducted on November 12, 2010, to discuss the results of the DRS Inservice Inspection. Proprietary information reviewed by the team as part of the routine inspection activities was returned to the licensee in accordance with prescribed controls. | |||
On November 19, 2010, the inspectors discussed results of the onsite radiation protection inspection with Mr. Bischof, Site Vice-President, and other cognizant licensee representatives. The inspectors noted that proprietary information was reviewed during the course of the inspection but would not be included in the documented report. | |||
On January 11, 2011 the inspection results were presented to Mr. Bischof and other members of his staff, who acknowledged the findings. The inspectors asked the licensee whether any of the material examined during the inspection should be considered proprietary. No proprietary information was identified. | |||
{{a|4OA7}} | {{a|4OA7}} | ||
==4OA7 Licensee-Identified Violation== | ==4OA7 Licensee-Identified Violation== | ||
The following finding of very low significance was identified by the licensee and is a violation of NRC requirements which meet the criteria of Section 2.3.2 of the NRC Enforcement Policy, NUREG-1600, for characterization as a Green Non-Cited Violation (NCV). | The following finding of very low significance was identified by the licensee and is a violation of NRC requirements which meet the criteria of Section 2.3.2 of the NRC Enforcement Policy, NUREG-1600, for characterization as a Green Non-Cited Violation (NCV). | ||
* 10 CFR 50, Appendix B, Criterion III, Design Control, requires, in part, that design control measures shall provide for verifying or checking the adequacy of designs such as by the performance of design reviews, by the use of alternate or simplified calculational methods, or by the performance of a suitable testing program. Contrary to this, the licensee identified in CR398124 that they failed to verify the adequacy of design changes that implemented a new drainage path through the primary shield wall. The design changes were inadequate because the impact to the sump from Microtherm insulation known to be installed on the reactor vessel head had not been evaluated or tested. The licensee removed all Microtherm from the Unit 1 reactor head and plans on removing all Microtherm from the Unit 2 reactor head during the outage in Spring 2011. The violation was determined to be of very low safety significance because the licensee was able to show that the debris loading was bounded by testing. | * 10 CFR 50, Appendix B, Criterion III, Design Control, requires, in part, that design control measures shall provide for verifying or checking the adequacy of designs such as by the performance of design reviews, by the use of alternate or simplified calculational methods, or by the performance of a suitable testing program. Contrary to this, the licensee identified in CR398124 that they failed to verify the adequacy of design changes that implemented a new drainage path through the primary shield wall. The design changes were inadequate because the impact to the sump from Microtherm insulation known to be installed on the reactor vessel head had not been evaluated or tested. The licensee removed all Microtherm from the Unit 1 reactor head and plans on removing all Microtherm from the Unit 2 reactor head during the outage in Spring 2011. The violation was determined to be of very low safety significance because the licensee was able to show that the debris loading was bounded by testing. | ||
ATTACHMENT: | ATTACHMENT: SUPPPLEMENTAL INFORMATION | ||
=SUPPLEMENTAL INFORMATION= | =SUPPLEMENTAL INFORMATION= | ||
Line 489: | Line 604: | ||
===Licensee Personnel=== | ===Licensee Personnel=== | ||
: [[contact::M. Adams]], Director, Station Engineering | : [[contact::M. Adams]], Director, Station Engineering | ||
: [[contact::G. Bischof]], Site Vice President | : [[contact::G. Bischof]], Site Vice President | ||
: [[contact::P. Blasioli]], Director Nuclear Protection & Emergency Preparedness | : [[contact::P. Blasioli]], Director Nuclear Protection & Emergency Preparedness | ||
: [[contact::D. Boone]], Supervisor Exposure Control | : [[contact::D. Boone]], Supervisor Exposure Control | ||
: [[contact::G. Canter]], HP Technician (Respiratory Protection Program Manager) | : [[contact::G. Canter]], HP Technician (Respiratory Protection Program Manager) | ||
: [[contact::E. Collins]], Manager Emergency Preparedness | : [[contact::E. Collins]], Manager Emergency Preparedness | ||
: [[contact::J. Eggart]], Manager, Radiation Protection & Chemistry | : [[contact::J. Eggart]], Manager, Radiation Protection & Chemistry | ||
: [[contact::B. Garber]], Supervisor, Licensing | : [[contact::B. Garber]], Supervisor, Licensing | ||
: [[contact::P. Harris]], Supervisor Rad Analysis and Instrumentation | : [[contact::P. Harris]], Supervisor Rad Analysis and Instrumentation | ||
: [[contact::L. Hilbert ]], Manager Outage and Planning | : [[contact::L. Hilbert ]], Manager Outage and Planning | ||
: [[contact::B. Hilt]], | : [[contact::B. Hilt]], Supervisor HP Tech Services | ||
: [[contact::B. Hoffner]], Fleet Emergency Preparedness Manager | : [[contact::B. Hoffner]], Fleet Emergency Preparedness Manager | ||
: [[contact::R. Johnson]], Manager, Operations | : [[contact::R. Johnson]], Manager, Operations | ||
: [[contact::C. Olsen]], Manager, Site Engineering | : [[contact::C. Olsen]], Manager, Site Engineering | ||
: [[contact::K. Sloane]], Plant Manager (Nuclear) | : [[contact::K. Sloane]], Plant Manager (Nuclear) | ||
: [[contact::M. Smith]], Manager Nuclear Oversight | : [[contact::M. Smith]], Manager Nuclear Oversight | ||
: [[contact::B. Stanley]], Director, Station Safety and Licensing | : [[contact::B. Stanley]], Director, Station Safety and Licensing | ||
: [[contact::N. Turner]], Supervisor Emergency Preparedness | : [[contact::N. Turner]], Supervisor Emergency Preparedness | ||
: [[contact::M. Wilda]], Supervisor, Auxiliary Systems | : [[contact::M. Wilda]], Supervisor, Auxiliary Systems | ||
==LIST OF ITEMS== | ==LIST OF ITEMS== | ||
OPENED, CLOSED AND DISCUSSED | |||
===OPENED, CLOSED AND DISCUSSED=== | |||
===Opened=== | ===Opened=== | ||
: 05000280, 281/2010005-01 | : 05000280, 281/2010005-01 AV Failure to Correct Multiple Conditions Adverse to Fire Protection (Section 1R15) | ||
: 05000280, 281/2010005-04 | : 05000280, 281/2010005-04 AV Inadequate Risk Evaluation for Leaving Common ESGR HELB Door Open (Section 1R15) | ||
===Opened and Closed=== | ===Opened and Closed=== | ||
: 05000280/2010005-02 | : 05000280/2010005-02 NCV Failure to Follow Procedure Results in Inadvertent Actuation of Safety Injection (Section 1R22) | ||
: 05000280/2010005-03 | : 05000280/2010005-03 NCV Heavy Load Lift of the 1B RCP Motor Over Exposed Reactor Fuel (Section 1R20) | ||
===Closed=== | ===Closed=== | ||
: 05000280, 281/2515/179 TI | : 05000280, 281/2515/179 TI Verification of Licensee Responses to NRC Requirement for Inventories of Materials Tracked in the National Source Tracking System (NSTS) | ||
(Section 4OA5) | |||
==LIST OF DOCUMENTS REVIEWED== | ==LIST OF DOCUMENTS REVIEWED== | ||
}} | }} |
Latest revision as of 11:42, 21 December 2019
ML110310531 | |
Person / Time | |
---|---|
Site: | Surry ![]() |
Issue date: | 01/31/2011 |
From: | Gerald Mccoy NRC/RGN-II/DRP/RPB5 |
To: | Heacock D Virginia Electric & Power Co (VEPCO) |
References | |
IR-10-005 | |
Download: ML110310531 (45) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION ary 31, 2011
SUBJECT:
SURRY POWER STATION - NRC INTEGRATED INSPECTION REPORT 05000280/2010005, 05000281/2010005
Dear Mr. Heacock:
On December 31, 2010, the United States Nuclear Regulatory Commission (NRC) completed an inspection at your Surry Power Station, Units 1 and 2. The enclosed inspection report documents the inspection results, which were discussed on January 11, 2011, with Mr. Bischof and other members of your staff.
The inspections examined activities conducted under your licenses as they relate to safety and compliance with the Commissions rules and regulations and with the conditions of your licenses. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel.
This report documents two findings that have potential safety significance greater than very low safety significance. The findings are associated with the failure to correct multiple conditions adverse to fire protection, and the failure to effectively manage risk with the common emergency switchgear room (ESGR) door. Although these findings have potential safety significance, the findings did not represent immediate safety concerns because compensatory measures to deenergize adjacent loads was in place after the fire to prevent additional failures, and the licensee immediately closed the ESGR door. These findings do not present current safety concerns because for the fire protection issue, the failed load has been repaired and all existing unprotected breakers were isolated from their loads as a compensatory measure to prevent additional failures and for the ESGR door issue, the door has been repaired and access control has been restored to normal.
In addition, the report documents one NRC-identified finding and one self-revealing finding of very low safety significance (Green) which were determined to involve violations of NRC requirements. Additionally, one licensee-identified violation which was determined to be of very low safety significance is listed in this report. The NRC is treating these violations as non-cited violations (NCV) consistent with Section 2.3.2 of the NRC Enforcement Policy because of the very low safety significance of the violations and because they were entered into your corrective action program. If you contest any NCV, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the Nuclear Regulatory Commission, ATTN.: Document Control Desk, Washington DC 20555-0001; with copies to the
VEPCO 2 Regional Administrator Region II; the Director, Office of Enforcement, United States Nuclear Regulatory Commission, Washington, DC 20555-0001; and the NRC Resident Inspector at the Surry Power Station.
In addition, if you disagree with the characterization of any finding in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your disagreement, to the Regional Administrator, Region II; and the NRC Resident Inspector at the Surry Power Station. The information you provide will be considered in accordance with Inspection Manual Chapter 0305.
In accordance with 10 CFR 2.390 of the NRCs Rules of Practice, a copy of this letter, its enclosure, and your response (if any) will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of the NRCs document system (ADAMS). ADAMS is accessible from the NRC Website at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
/RA/
Gerald J. McCoy, Chief Reactor Projects Branch 5 Division of Reactor Projects Docket Nos.: 50-280, 50-281 License Nos.: DPR-32, DPR-37
Enclosure:
Inspection Report 05000280/2010005, 05000281/2010005 w/Attachment: Supplemental Information
REGION II==
Docket Nos.: 50-280, 50-281 License Nos.: DPR-32, DPR-37 Report No: 05000280/2010005, 05000281/2010005 Licensee: Virginia Electric and Power Company (VEPCO)
Facility: Surry Power Station, Units 1 and 2 Location: 5850 Hog Island Road Surry, VA 23883 Dates: October 1, 2010 through December 31, 2010 Inspectors: C. Welch, Senior Resident Inspector G. Kolcum, Acting Senior Resident Inspector J. Nadel, Resident Inspector J. Dodson, Senior Project Engineer E. Lea, Senior Operations Engineer (1R11)
R. Hamilton, Senior Health Physics Inspector (2RS1-S3, 4OA1, 4OA5)
L. Lake, Senior Reactor Inspector (1R08)
R. Chow, Reactor Inspector (1R07)
Approved by: Gerald J. McCoy, Chief Reactor Projects Branch 5 Division of Reactor Projects Enclosure
SUMMARY OF FINDINGS
IR 05000280/2010005, 05000281/2010005, 10/01/2010 - 12/31/2010; Surry Power Station,
Units 1 and 2, Operability Evaluations, Refueling and Other Outage Activities, and Surveillance Testing.
The report covered a 3 month period of inspection by resident inspectors and by regional engineering, operator licensing and health physics inspectors. This report contains two Green findings, which were non-cited violations (NCVs), and two apparent violations (AVs) with potential safety significance greater than
- Green.
The significance of most findings is indicated by their color (Green, White, Yellow, Red) using Inspection Manual Chapter (IMC) 0609,
Significance Determination Process (SDP). The cross-cutting aspect was determined using IMC 0310, Components Within The Cross-Cutting Areas. Findings for which the SDP does not apply may be Green or be assigned a severity level after NRC management review. 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.
NRC Identified and Self-Revealing Findings
Cornerstone: Initiating Events
- Green.
A self-revealing Green NCV of TS 6.4, Unit Operating Procedures and Programs, was identified for the failure to follow procedure 1-OPT-ZZ-001, ESF Actuation with Undervoltage and Degraded Voltage 1H Bus. Specifically, on October 26, 2010, a test lead was incorrectly installed in the Unit 1 relay room for the logic circuit associated with the A train of Consequence Limiting Safeguards (CLS). This resulted in an inadvertent safety injection, isolated component cooling water supply to the standby residual heat removal (RHR) train, and automatically initiated several safety-related components including emergency diesel generator (EDG) #1. Operators entered AP-10.20, Response To Spurious Safety Injection With RCS Temperature Less Than 350F, and terminated the safety injection in approximately three minutes. The licensee entered this issue into the CAP (CR 400908).
Failure to install the test leads as required by procedure 1-OPT-ZZ-001, is a performance deficiency. The finding is more than minor because it is associated with the configuration control attribute of the Initiating Events Cornerstone and adversely affected the cornerstones objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. The finding, evaluated in accordance with NRC Inspection Manual Chapter (IMC) 0609, Appendix G, Shutdown Operations Significance Determination Process,
Attachment 1, Checklist 3, identified the finding is of very low safety significance (Green)because the finding did not lead to a loss of decay heat removal. This finding has a cross cutting aspect in the work practices component in the Human Performance area, because human error prevention techniques were not properly used commensurate with the risk significance of the assigned task (H.4(a)). (Section 1R22)
Cornerstone: Mitigating Systems
- TBD. A self-revealing apparent violation (AV) of Condition 1.B to the Surry Unit 1 and Unit 2 Updated Facility Operating Licenses, DPR-32 and DPR-37, was identified for the licensees failure to take corrective action for degraded conditions adverse to the fire protection program. Specifically, in 2003-2004, three breakers with loads including the Unit 2 1B Refueling Water Storage Tank (RWST) chiller motor, the Unit 1 2B charging component cooling water pump, and the Unit 2 B hydrogen recombiner were identified as being oversized with respect to the Surry design standard for breaker sizing and cable protection. The failure to take corrective action on the affected breakers led to a fault on the Unit 2 RWST Chiller Motor 1B on October 11, 2010, and a resulting fire which damaged the electrical cable and motor controller. The fire was promptly extinguished by the fire brigade. The licensee entered this issue into the CAP (CR 398628) and isolated the remaining breakers to prevent additional failures.
The inspectors found that the failure to take action to correct multiple oversized breakers constituted a performance deficiency. The finding is more than minor because it adversely affected the external factors attribute (fire) of the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the Unit 2 1B RWST chiller motor and the Unit 2 B hydrogen recombiner breakers were the most susceptible to fire due to their size; also a cable fault could potentially damage safety related cables routed nearby. In addition, the Unit 1 2B charging component cooling water pump is safety related and was also unprotected. The inspectors reviewed IMC 0609, Appendix F, Attachment 1, and determined the category of post fire safe shutdown was affected and the finding required a phase 3 analysis. The significance of this finding is to be determined pending completion of the phase 3 evaluation. This finding has a cross cutting aspect in the work control component in the Human Performance area because the licensee did not appropriately plan work activities by incorporating risk insights. Specifically, although work orders were planned in 2006 they were neither prioritized consistent with their safety significance nor scheduled and completed in a timely manner. (H.3(a)). (Section 1R15.b.1)
- TBD. A licensee identified AV of 10CFR50.65 (a)(4), Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants, was revealed after the licensee discovered that 2-BS-DR-21, common emergency switchgear room (ESGR) door was blocked open for two hours without clear communication to licensed operators. The licensee did not adequately assess the increase in operational risk that resulted in the required risk management actions of fire and environmentally qualified watches not being established. The licensee immediately corrected the condition by shutting the HELB door and having security control personnel access. The issue was entered into the licensees CAP as CR397720.
The failure to adequately assess the increased risk associated with blocking open the common ESGR door and to take the required risk management actions is a performance deficiency. This finding is more than minor because it is associated with the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences.
Specifically, both Unit 1 and Unit 2 plant risk were not evaluated and risk management activities were not put in place when the common ESGR door was blocked open for maintenance and unable to perform its function as a fire barrier, a halon suppression pressure boundary, a main control room pressure boundary, and a HELB boundary. In accordance with IMC 0609, Appendix K, Maintenance Risk Assessment and Risk Management Significance Determination Process, this finding will require a phase 3 analysis. The significance of this finding is to be determined pending completion of the phase 3 evaluation. The inspectors determined that this finding had a cross-cutting aspect in the work control component of the human performance area because the licensee did not appropriately plan work activities by incorporating risk insights (H.3(a)).
(Section 1R15.b.2)
Cornerstone: Barrier Integrity
- Green.
An NRC-identified Green NCV of Technical Specification (TS) 6.4, Unit Operating Procedures and Programs, was identified. Personnel failed to follow the defined heavy load shipping path inside containment as specified in procedure, GMP-001, Heavy Load Rigging and Movement, which resulted in the movement of the 1B reactor coolant pump motor over exposed reactor fuel. The licensee has entered the issue into the CAP (CR 404106).
Transport of the 1B reactor coolant pump motor over the exposed reactor core is a performance deficiency. The finding is more than minor because it can reasonably be viewed as a precursor to a significant event, the heavy load traveled over exposed irradiated fuel with the reactor vessel head removed. In accordance with NRC Inspection Manual Chapter (IMC) 0609, Appendix G, Shutdown Operations Significance Determination Process, Attachment 1, Checklist 4, the inspectors conducted a Phase 1 SDP screening and determined the finding required a Phase 2 analysis. The Phase 2 analysis determined the finding is of very low safety significance (Green) because: (1)there is a low probability of dropping the load based on a study in NUREG-1774 performed for crane operating experience; (2) the polar crane was in working condition and had no known deficiencies that would have affected the cranes ability to lift the load; and, (3) the duration of the heavy load lift over the exposed reactor core was very short. In addition, in accordance with NRC IMC 0609, Appendix H, Containment Integrity SDP, the finding would not contribute to LERF due to the time since the reactor was shutdown. The finding has a cross-cutting aspect in the work practices component of the Human Performance area because plant supervisors failed to properly supervise workers executing procedure steps (H.4(c)). (Section 1R20)
Licensee Identified Violations
One violation of very low safety significance that was identified by the licensee has been reviewed by the inspectors. Corrective actions taken or planned by the licensee have been entered into the licensees corrective action program. This violation and corrective action tracking number are listed in Section 4OA7 of this report
REPORT DETAILS
Summary of Plant Status
Unit 1 entered the period at full rated thermal power (RTP) and subsequently entered into coast down operations, for refueling outage on October 23, 2010. The unit was taken off-line and the reactor shutdown on October 24. Startup commenced on November 30, 2010. The reactor was brought critical on December 1, 2010. The Unit was connected to the electrical grid, following physics testing, on December 2, 2010. RTP was reached on December 5, 2010. The Unit operated at RTP for the remainder of the period.
Unit 2 operated at or near full RTP throughout the inspection period.
REACTOR SAFETY
Cornerstones: Initiating Events, Mitigating Systems, and Barrier Integrity
1R04 Equipment Alignment
.1 Partial Walkdown
a. Inspection Scope
The inspectors performed a partial walk down on the five risk-significant systems identified below to verify the redundant or diverse train for equipment removed from service was operable and/or that the system had been properly aligned to perform its designated safety function following an extended outage. During the walkdown, the inspectors verified the positions of critical valves, breakers, and control switches by in-field observation and/or review of the main control board. To determine the correct configuration to support system operation, the inspectors reviewed applicable operating procedures, station drawings, the Updated Final Safety Analysis Report, and the Technical Specifications. During the walkdown, the inspectors attempted to identify any discrepancies that could impact the function of the system, and, therefore, potentially increase risk.
- Unit 1 containment spray system
- Unit 1 inside and outside recirculation spray systems
- Unit 1 low head safety injection system and passive accumulators
- Unit 1 motor driven auxiliary feedwater systems
- Unit 1 turbine driven auxiliary feedwater system
b. Findings
No findings were identified.
1R05 Fire Protection
.1 Quarterly Fire Protection Reviews
a. Inspection Scope
The inspectors conducted a defense-in-depth (DID) review for the four fire areas listed below by walkdown and review of licensee documents. The reviews were performed to evaluate the fire protection program operational status and material condition and the adequacy of:
- (1) control of transient combustibles and ignition sources;
- (2) fire detection and suppression capability;
- (3) passive fire protection features;
- (4) compensatory measures established for out-of-service, degraded or inoperable fire protection equipment, systems, or features; and
- (5) procedures, equipment, fire barriers, and systems so that post-fire capability to safely shutdown the plant is ensured. The inspectors reviewed the corrective action program to verify fire protection deficiencies were being identified and properly resolved.
- Fire zone 15, Unit 1 Containment
- Fire zone 7, EDG #2 Room
- Fire zone 8, EDG #3 Room
- Fire zone 17, Auxiliary Building - 27ft elevation
b. Findings
No findings were identified.
1R07 Heat Sink Performance
a. Inspection Scope
The inspectors reviewed the licensees heat exchanger program document, trending data maintained by the system engineer, maintenance rule information, and specific commitments related to the recirculation spray heat exchangers. The inspectors also directly observed the flow testing of 1-RS-E-1A and 1-RS-E-1D which was performed during the Unit 1, November 2010, refueling outage. Inspectors reviewed records and as found photographs associated with heat exchanger inspections performed during the outage for heat exchangers 1-RS-E-1A, 1B, 1C, and 1D. The inspectors verified significant heat exchanger performance issues were being entered into the licensees corrective action program and appropriately addressed.
b. Findings
No findings were identified.
1R08 Inservice Inspection (ISI) Activities
.1 Non-Destructive Examination (NDE) Activities and Welding Activities
a. Inspection Scope
From November 1 to November 12, 2010, the inspectors reviewed the implementation of the licensees In-service Inspection (ISI) program for monitoring degradation of the reactor coolant system (RCS) boundary and risk significant piping boundaries of Unit 1.
The inspectors activities consisted of an on-site review of NDE to evaluate compliance with the applicable edition of the American Society of Mechanical Engineers (ASME)
Boiler and Pressure Vessel Code (BPVC),Section XI (Code of record: 2001 Edition with 2003 Addenda), and to verify that indications and defects (if present) were appropriately evaluated and dispositioned in accordance with the requirements of the ASME Code,Section XI acceptance standards.
The inspectors observed and/or reviewed portions of the NDE activities listed below.
The review included examination procedures, NDE reports, video of the inspection, equipment and personnel qualification records, and calibration reports (as applicable).
- Ultrasonic Testing (UT) of ASME Class 1 weld 12-SI-147-105A in 12 inch Safety Injection piping
- UT examinations of C Steam Generator Bottom Head DM welds 1-05DM and 1-06DM
- UT examination of RHR Heat Exchanger welds 1-B08, 1-A01 and 1-A-02 The inspectors review of welding activities specifically covered the welding activity listed below in order to evaluate compliance with procedures and the ASME Code. The inspectors reviewed the work order, repair and replacement plan, weld data sheets, welding procedures, procedure qualification records, welder qualification records, and NDE reports.
- Repair Replacement Plan 2010-106 associated with Work Order # 3810285663, for replacement of Safety Injection Check Valve 01-SI-147, 4/1/09
- Welding Technique Sheet and welding Data Sheet for completed weld 12-SI-147-105A-1-05A
b. Findings
No findings were identified.
.2 PWR Vessel Upper Head Penetration (VUHP) Inspection Activities
a. Inspection Scope
No volumetric/surface or bare metal visual (BMV) inspections were planned this outage.
b. Findings
N/A
.3 Boric Acid Corrosion Control (BACC) Inspection Activities
a. Inspection Scope
The inspectors reviewed the licensees BACC program activities to ensure implementation with commitments made in response to NRC Generic Letter 88-05, Boric Acid Corrosion of Carbon Steel Reactor Pressure Boundary, and applicable industry guidance documents. Specifically, the inspectors performed an on-site record review of procedures and the results of the licensees containment walk-down inspections performed during the current fall outage. The inspectors also interviewed the BACC program owner, conducted an independent walk-down of containment to evaluate compliance with licensees BACC program requirements, and verified that degraded or non-conforming conditions, such as boric acid leaks, were properly identified and corrected in accordance with the licensees BACC and corrective action programs.
The inspectors reviewed an engineering evaluation completed for evidence of boric acid found on systems containing borated water to verify compliance with generally accepted industry guidance.
- CR #401992 - possible through wall leak on SI ICV-3581
- CR #401994 - Boric Acid leak on Seal Table fitting 1-RC-TW-J7
- CR #402001 - Packing leak on valve 1-SI-339
b. Findings
No findings were identified.
.4 Steam Generator (SG) Tube Inspection Activities
a. Inspection Scope
The NRC inspectors interviewed eddy current testing (ET) personnel including the licensee SG engineer, ET Level III, and ET Qualified Data Analyst (QDA), and vendor lead ET Level III; and reviewed documentation related to the SG ISI program. The following items were evaluated against the requirements of the ASME B&PV Code,Section XI; the Technical Specifications; and the guidance documents referenced in NEI 97-06, Steam Generator Program Guidelines, Revision 2:
- Assessed whether assumed NDE flaw sizing accuracy was consistent with data from the EPRI examination technique specification sheets (ETSS) or other applicable performance demonstrations
- Reviewed ET data (including historical ET data) from: SG A - Row (R)2, Column (C)57, R3C66, R6C88, R8C38, R16C35, R29C24, and R34C67; and SG B - R1C7, R9C3, R25C85, R31C16, R38C21, R40C50, R40C51,and R41C51
- Compared the numbers and sizes of SG tube flaws/degradation identified, against the licensees previous outage Operational Assessment predictions
- Evaluated the licensees SG tube ET examination scope for potential areas of tube degradation identified in prior outage SG tube inspections and/or as identified in NRC generic industry operating experience applicable to the licensees SG tubes
- Reviewed the licensees examination scope expansion plans and implementation when defects were identified
- Reviewed the licensees repair criteria and processes
- Evaluated ET equipment and techniques used by the licensee to acquire data from the SG tubes for site-validation in accordance with Appendix H, Performance Demonstration for Eddy Current Examination, of EPRI Pressurized Water Reactor Steam Generator Examination Guidelines, Revision 7
- Reviewed the licensees disposition procedures of irretrievable foreign objects left within the secondary side of the steam generators
- Verified the licensee was complying with appropriate probe wear criteria during implementation of Generic Letter 95-05
- Reviewed equipment and data acquisition and analysis personnel certification and medical examination reports
b. Findings
No findings were identified.
.5 Identification and Resolution of Problems
a. Inspection Scope
The inspectors performed a review of ISI-related problems which were identified by the licensee and entered into the corrective action program as Condition Reports (CRs).
The inspectors reviewed the CRs to confirm that the licensee had appropriately described the scope of the problem, and had initiated corrective actions. The review also included the licensees consideration and assessment of operating experience events applicable to the plant. The inspectors performed this review to ensure compliance with 10CFR Part 50, Appendix B, Criterion XVI, Corrective Action, requirements. The corrective action documents reviewed by the inspectors are listed in the report attachment.
b. Findings
No findings were identified.
1R11 Licensed Operator Requalification Program
.1 Annual Review of Licensee Requalification Examination Results
a. Inspection Scope
On January 5, 2010, the licensee completed the annual requalification operating test and on February 16, 2010, the licensee completed the comprehensive biennial requalification written examinations tests required to be administered to all licensed operators in accordance with 10 CFR 55.59(a)(2). The inspectors performed an in-office review of the overall pass/fail results of the written examinations, individual operating tests and the crew simulator operating tests. These results were compared to the thresholds established in Manual Chapter 609 Appendix I, Operator Requalification Human Performance Significance Determination Process.
b. Findings
No findings were identified.
.2 Resident Inspector Quarterly Review
a. Inspection Scope
The inspectors observed just in time training conducted on October 19, 2010 in both the classroom and the simulator. The training was conducted under scenario RQ-ST-JIT-AIA-2.16. The training focused on the upcoming ramp and Unit 1 shutdown for refueling. The inspectors reviewed procedure 1-GOP-2.7, Unit Shutdown, Power Decrease from Allowable Power to Unit Offline for Refueling Outage and verified that licensed operators were aware of recent changes to the procedure. The inspectors verified that simulator conditions were consistent with the scenario and reflected the actual plant configuration (i.e., simulator fidelity). The inspectors observed a portion of the crews performance to determine whether proper communication, procedure adherence, and human performance techniques were being used. The inspectors observed the evaluators ongoing comments and confirmed items for improvement were identified and discussed with the operators to further enhance performance.
b. Findings
No findings were identified.
1R12 Maintenance Effectiveness
a. Inspection Scope
For the three equipment issues described in the condition reports listed below, the inspectors evaluated the effectiveness of the corresponding licensee's preventive and corrective maintenance. The inspectors performed a detailed review of the problem history and associated circumstances, evaluated the extent of condition reviews, as required, and reviewed the generic implications of the equipment and/or work practice problem(s). Inspectors performed walkdowns of the accessible portions of the system, performed in-office reviews of procedures and evaluations, and held discussions with system engineers. The inspectors compared the licensees actions with the requirements of the Maintenance Rule (10 CFR 50.65), station procedures ER-AA-MRL-10, Rev. 4, Maintenance Rule Program; and ER-AA-MRL-100, Rev. 1, Implementing the Maintenance Rule; the Surry Maintenance Rule Scoping and Performance Matrix.
And industry guidance contained in NUMARC 93-01, Rev. 2, Industry Guidance for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants.
- CR 387191, Elevated Temperatures of the AAC Diesel
- CR 386337, Low Head Safety Injection Pump 1B is Inoperable due to High Flow during pump testing
- CR 402225, Received Loss of Detector Voltage Alarm for Source Range N-35 on Unit 1
b. Findings
No findings were identified.
1R13 Maintenance Risk Assessments and Emergent Work Control
a. Inspection Scope
The inspectors evaluated, as appropriate, for the five work activities listed below:
- (1) the effectiveness of the risk assessments performed before maintenance activities were conducted;
- (2) the management of risk;
- (3) that, upon identification of an unforeseen situation, necessary steps were taken to plan and control the resulting emergent work activities; and,
- (4) that maintenance risk assessments and emergent work problems were adequately identified and resolved. The inspectors verified that the licensee was complying with the requirements of 10 CFR 50.65(a)(4) and the data output from the licensees safety monitor associated with the risk profile of Units 1 and 2. The inspectors reviewed the corrective action program to verify deficiencies in risk assessments were being identified and properly resolved.
- On-line unplanned entry into an elevated (yellow) risk condition for Unit 2 on October 4 associated with the common emergency switchgear room door being held open without the required risk management actions in place.
- On-line unplanned entry into an elevated (yellow) risk condition for Unit 2 on October 27 associated with an issued tornado watch.
- Shutdown elevated (yellow) risk condition for Unit 1 on November 10 associated with planned shutdown activities.
- On-line unplanned entry into an elevated (yellow) risk condition for Unit 1 on December 1 associated with an issued tornado watch during preparations for criticality.
- On-line green risk condition for Unit 2 on December 10 associated with the planned removal of the A circulating water line spray shield.
b. Findings
No findings were identified.
1R15 Operability Evaluations
a. Inspection Scope
The inspectors reviewed the six operability evaluations listed below, affecting risk-significant mitigating systems, to assess as appropriate:
- (1) the technical adequacy of the evaluations;
- (2) whether continued system operability was warranted;
- (3) whether other existing degraded conditions were considered;
- (4) if compensatory measures were involved, whether the compensatory measures were in place, would work as intended, and were appropriately controlled; and
- (5) where continued operability was considered unjustified, the impact on TS Limiting Conditions for Operation and the risk significance.
The inspectors review included verification that determinations of operability followed procedural requirements of OP-AA-102, Operability Determination. The inspectors reviewed the corrective action program to verify deficiencies in operability determinations were being identified and corrected.
- CR 405545 - 1-SW-MOC-103A/103B leaking
- CR 399859 - Supplemental neutron shields (Benelex) are not included in GSI-191 debris load
- CR 398124 - Microtherm on CRDM nozzles in Unit 1 and Unit 2 containment
- CR 398628 - Unit 2 RWST chiller caught fire due to short causing breaker and cable damage
- CR331819 - Klockner-Moeller breaker contacter testing practice
b. Findings
1. Failure To Correct Multiple Conditions Adverse to Fire Protection
Introduction:
A self-revealing apparent violation (AV) of Condition 1.B to the Surry Unit 1 and Unit 2 Updated Facility Operating Licenses, DPR-32 and DPR-37, was identified for the licensees failure to take corrective action for degraded conditions adverse to the fire protection program. Specifically, in 2003-2004, three breakers with loads including the Unit 2 1B Refueling Water Storage Tank (RWST) chiller motor, the Unit 1 2B charging component cooling water pump, and the Unit 2 B hydrogen recombiner were identified as being oversized with respect to the Surry design standard for breaker sizing and cable protection. The failure to take corrective action on the affected breakers led to a fault on the Unit 2 RWST chiller motor 1B on October 11, 2010, and a resulting fire which damaged the electrical cable and motor controller. The fire was promptly extinguished by the fire brigade.
Description:
In 2003 and 2004, three plant issue reports were written: S-2004-1395, S-2004-2571, and S-2003-4662. These reports were written for a population of breakers at the station that were not appropriately sized in accordance with the original Stone and Webster design standards to protect the cables they fed. The two breakers most susceptible to a fire due to inaqequate protection for their respective cables included the Unit 2 1B RWST chiller motor and the Unit 2 B hydrogen recombiner. In addition, the Unit 1 2B charging component cooling water pump was the only safety related load identified as being unprotected. There was a two year delay before a design change package (DCP) was created to begin the process of replacing these breakers.
On October 11, 2010, at 0824 a security officer reported a fire at the Unit 2 1B RWST chiller with arcing, fire, and smoke seen at the control panel. The fire was promptly extinguished at 0831 by the fire brigade. The chiller is located in an outside area next to the RWST inside the Radiologically Controlled Area (RCA). Additionally, smoke was reported in the upper cable vault area coming from breaker cubicle 2-EP-BKR-2C1-1E-2B, which is the breaker that feeds the RWST chiller. A subsequent inspection identified overheated and damaged cabling inside the breaker cubicle.
It was discovered that the RWST chiller breaker was a 225 ampere breaker serving a single load of 28 amperes. The cable was sized as a #12 American Wire Gauge rated at 21 amperes. Plant issue report S-2004-2571 first identified that the RWST chiller breaker was oversized. The remaining population of affected breakers were later isolated from their loads as a compensatory measure to prevent additional failures.
Analysis:
The inspectors found that the failure to take action to correct multiple oversized breakers constituted a performance deficiency. The finding is more than minor because it adversely affected the external factors attribute (fire) of the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences.
Specifically, the Unit 2 1B RWST chiller motor and the Unit 2 B hydrogen recombiner breakers were the most susceptible to fire due to their size; also a cable fault could potentially damage safety related cables routed nearby. In addition, the Unit 1 2B charging component cooling water pump is safety related and its breaker was also unprotected. The inspectors reviewed IMC 0609, Appendix F, Attachment 1, and determined the category of post fire safe shutdown was affected and the finding required a phase 3 analysis. The significance of this finding is to be determined pending completion of the phase 3 evaluation. This finding has a cross cutting aspect in the work control component in the Human Performance area because the licensee did not appropriately plan work activities by incorporating risk insights. Specifically, although work orders were planned in 2006 they were neither prioritized consistent with their safety significance nor scheduled and completed in a timely manner. (H.3(a)). (Section
1R15 .B.1)
Enforcement:
10 CFR Part 50.48 states, in part, that each operating nuclear power plant
. . . must have a fire protection plan that satisfies Criterion 3 of appendix A to this part.
The Surry Unit 1 Updated Facility Operating License DPR-32, and Unit 2 Updated Facility Operating License DPR-37, Condition 1.B, specify, in part, that the licensee implement and maintain in effect all provisions of the approved fire protection program as described in the UFSAR and as approved in the Safety Evaluation Report (SER) and subsequent supplements. The UFSAR requires, in part, that the fire protection program (FPP) meet Appendix A to Branch Technical Position (BTP) APCSB 9.5-1, Guidelines for Fire Protection for Nuclear Power Plants Docketed Prior to July 1, 1976," dated August 23, 1976. Section C.8 of Appendix A to BTP APCSB 9.5-1 requires, in part, that measures be established to assure conditions adverse to fire protection, such as failures, malfunctions, and deficiencies, are promptly identified, reported, and corrected.
Contrary to the above, the licensee failed to take corrective action within an adequate time period for deficiencies associated with circuits where the breakers were not providing the required electrical protection for their associated cables. As a result, on October 11, 2010, a fire developed on the 1B RWST Chiller Motor due to a fault in one of the unprotected cables. The licensee has entered the issue into the CAP (CR 398628). Pending determination of safety significance, this finding is identified as: AV 05000280,281/2010005-01; Failure to Correct Multiple Conditions Adverse to Fire Protection.
2. Inadequate Risk Evaluation for Leaving Common ESGR Door Open
Introduction:
A licensee identified AV of 10CFR50.65 (a)(4), Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants, was revealed after the licensee discovered that 2-BS-DR-21, common emergency switchgear room (ESGR) door was blocked open for two hours without clear communication to licensed operators. The licensee did not adequately assess the increase in operational risk that resulted in the required risk management actions of fire and environmentally qualified watches not being established. The licensee immediately corrected the condition by shutting the HELB door and having security control personnel access. The issue was entered into the licensees CAP as CR397720.
Description:
On October 4, 2010, the licensee discovered that 2-BS-DR-21, common emergency switchgear room (ESGR) door would not function electrically to allow access into or out of the room. The common ESGR door functions as a fire barrier, a halon suppression pressure boundary, a main control room pressure boundary, and a HELB boundary. Maintenance was planned to correct the electrical malfunction on the door.
Instructions provided by licensed operators to security were to manually open the door each time access was requested. Security misunderstood the instructions and blocked open the door for approximately two hours. Upon discovery of the open ESGR door by licensed operators, the licensee entered TS 3.0.1 and declared all equipment in the common ESGR inoperable. TS 3.0.1 was exited when the ESGR door was closed and secured.
Analysis:
The failure to adequately assess the increased risk associated with blocking open the common ESGR door and to take the required risk management actions is a performance deficiency. This finding is more than minor because it is associated with the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, both Unit 1 and Unit 2 plant risk were not evaluated and risk management activities were not put in place when the common ESGR door was blocked open for maintenance and unable to perform its function as a fire barrier, a halon suppression pressure boundary, a main control room pressure boundary, and a HELB boundary. In accordance with IMC 0609, Appendix K, Maintenance Risk Assessment and Risk Management Significance Determination Process, this finding will require a phase 3 analysis. The significance of this finding is to be determined pending completion of the phase 3 evaluation. The inspectors determined that this finding had a cross-cutting aspect in the work control component in the human performance area because the licensee did not appropriately plan work activities by incorporating risk insights (H.3(a)).
Enforcement:
10 CFR Part 50.65 (a)(4) requires that, before performing maintenance activities, the licensee shall assess and manage the increase in risk that may result from the proposed maintenance activity. Contrary to the above, on October 4, 2010, the licensee failed to adequately assess the risk associated with leaving the common ESGR room door open for two hours. Pending determination of safety significance, this finding is identified as: AV 05000280, 281/2010005-04; Inadequate Risk Evaluation for Leaving Common ESGR Door Open.
1R19 Post Maintenance Testing
a. Inspection Scope
For the five risk-significant maintenance activities listed below, the inspectors reviewed the associated post maintenance testing (PMT) procedures and either witnessed the testing and/or reviewed completed records to assess whether:
- (1) the effect of testing on the plant had been adequately addressed by control room and/or engineering personnel;
- (2) testing was adequate for the maintenance performed;
- (3) test acceptance criteria were clear and adequately demonstrated operational readiness consistent with design and licensing basis documents;
- (4) test instrumentation had current calibrations, range, and accuracy consistent with the application;
- (5) test were performed as written with applicable prerequisites satisfied;
- (6) jumpers installed or leads lifted were properly controlled;
- (7) test equipment was removed following testing; and
- (8) equipment was returned to the status required to perform its safety function. The inspectors reviewed the corrective action program to verify PMT deficiencies were being identified and corrected. Documents reviewed are listed in the Attachment.
- Unit 1 turbine driven auxiliary feedwater pump maintenance per W.O.s 38102562086
& 038102544025
- Accumulator discharge check valve replacement per W.O.s 38102856653 and 38102585535.
- 1-PT-11.0, Rev.18, Reactor Coolant Pressure Test
- 1-NPT-RX-14, Rev. 15; Hot Rod Drops By Bank
- 1-NPT-RX-008, Rev 23; Startup Physics Testing
b. Findings
No findings were identified.
1R20 Refueling and Other Outage Activities
.1 Unit 1 Refueling Outage
a. Inspection Scope
In accordance with NRC Inspection Procedure 71111.20, Refuelling and Outage Activities, the inspectors monitored licensee controls over the outage activities listed below for the Unit 1 Refueling Outage (RFO) that began on October 24, 2010 and ended November 30, 2010.
Review of Outage Plan:
Prior to the outage, the inspectors reviewed the Surry Unit 1 2010 RFO Shutdown Risk Review Report to verify the licensee had appropriately considered risk, industry operating experience, and previous site specific problems.
The inspectors verified the outage impact on defense-in-depth for the five shutdown critical safety functions; electrical power availability, inventory control, decay heat removal, reactivity control, and containment; had been appropriately considered and that the Licensee had planned to provide adequate defense-in-depth for each safety function or had established contingencies to minimize the overall risk where redundancy was limited or not available.
On a routine basis, the inspectors reviewed the refueling outage work plan and daily shutdown risk assessments. Periodic updates to the Surry Unit 1 2010 RFO Shutdown Risk Review Report, accounting for schedule changes and unplanned activities, were also reviewed. Detailed risk reviews for specific high risk periods/activities are documented in section 1R13 of this report.
Monitoring of Shutdown Activities:
The inspectors observed portions of the reactor shutdown and plant cooldown to assess operator performance with respect to communications, command and control, procedure adherence, and compliance with Technical Specification cooldown limits. Upon shutdown, the inspectors conducted a thorough containment walkdown to identify structures, piping, and supports in containment with stains or deposited material that could indicate previously unidentified leakage from components containing reactor coolant and/or signs of physical damage.
Licensee control of Outage Activities:
The inspectors on a sampling basis monitored the outage activities listed below.
- Licensee configuration management, including daily outage reports, to evaluate defense-in-depth commensurate with the outage safety plan and compliance with the applicable TS when taking equipment out of service.
- Controls over the status and configuration of electrical systems and switchyard to ensure that TS and outage safety plan requirements were met.
- Licensee implementation of clearance activities to ensure equipment was appropriately configured to safely support the work or testing.
- Decay heat removal processes to verify proper operation and that steam generators, when relied upon, were a viable means of backup cooling.
- Controls to ensure that outage work was not impacting the ability to operate the spent fuel pool cooling system during and after core offload.
- Reactor water inventory controls including flow paths, configurations, and alternative means for inventory addition, and controls to prevent inventory loss.
- Reactivity controls to verify compliance with TS and those activities which could affect reactivity were reviewed for proper control within the outage risk plan.
- Refueling activities for compliance with TS, to verify proper tracking of fuel assemblies from the spent fuel pool to the core, and to verify foreign material exclusion was maintained.
- Containment closure activities, including a detailed containment walkdown prior to startup, to verify that evidence of leakage did not exist and that debris had not been left which could affect the performance of the containment sump.
Control of Heavy Loads:
The inspectors verified station procedures for heavy load lifts were consistent with station analysis and Appendix 9B of the UFSAR to ensure that heavy load lifts were conducted safely. The inspectors reviewed actions to manage the increased risk during these activities and observed the heavy load lift for the Unit 1 reactor vessel head removal and installation of the 1B reactor coolant pump.
Refueling Activities:
The inspectors, on a sampling basis, verified the requirements of TS 3.10, Refueling, were met, and that refueling activities were conducted in accordance with station procedures. Activities were monitored from the control room and refueling bridge to observe the communications and coordination between personnel and to verify core reactivity was controlled and fuel movement was accomplished and tracked in accordance with the fuel movement schedule. The inspectors reviewed the video recording of the core verification to independently verify the as-loaded core configuration matched the designed core reload configuration for Unit 1 cycle 23.
Monitoring of Heat-up and Startup Activities:
Prior to startup, the inspectors examined the spaces inside the containment building to verify that debris had not been left which could affect performance of the containment sumps. On a sampling basis the inspectors verified that technical specification, license conditions, and other requirements, commitments, and administrative procedure prerequisites were met for changes in plant configurations/modes. The inspectors performed control room observations, plant walkdowns, reviewed main control board indicators, operator logs, plant computer information, and station procedures to monitor the startup evolution. Control room observations included the approach to criticality, critical operations, low power physics testing, and the synchronization of the main turbine generator to the electrical grid.
b. Findings
Heavy Load Lift of the 1B RCP Motor Over Exposed Reactor Fuel
Introduction:
An NRC-identified Green NCV of Technical Specification (TS) 6.4, Unit Operating Procedures and Programs, was identified. Personnel failed to follow the defined heavy load shipping path inside containment as specified in procedure, GMP-001, Heavy Load Rigging and Movement, which resulted in the movement of the 1B reactor coolant pump motor over exposed reactor fuel.
Description:
On November 17, 2010, the reactor was in refueling shutdown mode with the reactor vessel head removed, the cavity flooded in excess of 23 feet, and more than two thirds of the core had been loaded into the reactor vessel. The inspectors observed movement of the B reactor coolant pump motor (1-RC-P-1B) from the containment equipment hatch to the pump cubicle. During transport of the motor with the polar crane, the inspectors noted that the transport path deviated from the safe load path and the reactor coolant pump motor was rigged over the exposed reactor core for several minutes during the transport. The implementing procedure was GMP-001, Heavy Load Rigging and Movement. The inspectors confirmed their observations with refueling personnel located closer to the reactor cavity.
Analysis:
Transport of the 1B reactor coolant pump motor over the exposed reactor core is a performance deficiency. The finding is more than minor because it can reasonably be viewed as a precursor to a significant event, the heavy load traveled over exposed irradiated fuel with the reactor vessel head removed. In accordance with NRC Inspection Manual Chapter (IMC) 0609, Appendix G, Shutdown Operations Significance Determination Process, Attachment 1, Checklist 4, the inspectors conducted a Phase 1 SDP screening and determined the finding required a Phase 2 analysis. The Phase 2 analysis determined the finding is of very low safety significance (Green) because: (1)there is a low probability of dropping the load based on a study in NUREG-1774 performed for crane operating experience;
- (2) the polar crane was in working condition and had no known deficiencies that would have affected the cranes ability to lift the load; and,
- (3) the duration of the heavy load lift over the exposed reactor core was very short. In addition, in accordance with NRC IMC 0609, Appendix H, Containment Integrity SDP, the finding would not contribute to LERF due to the time since the reactor was shutdown. The finding has a cross-cutting aspect in the work practices component of the Human Performance area because plant supervisors failed to properly supervise workers executing procedure steps (H.4(c)).
Enforcement:
TS 6.4, Unit Operating Procedures and Programs, states that detailed written procedures with appropriate check-off lists and instructions shall be provided and followed. Procedure GMP-001, Heavy Load Rigging and Movement, was established to perform this maintenance activity, which requires in Attachment 2 that heavy loads follow the approved safe load path. Contrary to the above, the licensee moved the 1B RCP motor over the exposed reactor fuel which deviated from the safe load path as outlined in the procedure. Because this finding is of very low safety significance and has been entered into the licensees CAP (CR 404106), this violation is being treated as an NCV, consistent with Section 2.3.2 of the NRC Enforcement Policy and is identified as: NCV 05000280/2010005-03; Heavy Load Lift of the 1B RCP Motor Over Exposed Reactor Fuel
1R22 Surveillance Testing
a. Inspection Scope
The inspectors witnessed and/or reviewed test records for the seven risk-significant surveillance tests listed below, to determine the SSCs operational readiness and whether the SSCs selected meet the Technical Specifications (TS), Updated Final Safety Analysis Report (UFSAR), and licensees procedure requirements and if the test adequately demonstrated that the SSCs are capable of performing their intended safety functions (under conditions as close as practical to accident conditions or as required by TS).
In-Service Testing:
- 1-OPT-RS-001, Rev. 20; Containment Outside Recirculation Spray Pumps Flow and Leak Test
- 1-OPT-RH-003, Rev. 17; RHR System Operability Test Surveillance Testing:
- 1-OPT-ZZ-002, Rev. 30; ESF Actuation with Undervoltage and Degraded Voltage -
1J Bus
- 1-OSP-SW-007, Rev 5; Service Water Flow Test of Recirculation Spray Heat Exchangers 1-RS-E-1A and 1-RS-E-1D
- 1-OSP-TM-003, Rev. 11; Functional Check of Turbine Valves Stroke and Limit Switch Operation Containment Isolation Valve
- 1-OPT-CT-201, Rev. 20; Containment isolation Valve Local Leak Rate Testing, Penetration 57C
- 1-OPT-CT-201, Rev. 20; Containment isolation Valve Local Leak Rate Testing, Penetration 92
b. Findings
Failure to Follow Procedure Results in Inadvertent Actuation of Safety Injection
Introduction:
A self-revealing Green NCV of TS 6.4, Unit Operating Procedures and Programs, was identified for the failure to follow procedure 1-OPT-ZZ-001, ESF Actuation with Undervoltage and Degraded Voltage 1H Bus. Specifically, on October 26, 2010, a test lead was incorrectly installed in the Unit 1 relay room for the logic circuit associated with the A train of Consequence Limiting Safeguards (CLS). This resulted in an inadvertent safety injection, isolated component cooling water supply to the standby residual heat removal (RHR) train, and automatically initiated several safety-related components including emergency diesel generator (EDG) #1.
Description:
On October 26, 2010, while Unit 1 was in cold shutdown, licensee personnel were in the Unit 1 relay room setting up test equipment to support the upcoming H bus undervoltage and degraded voltage logic testing in accordance with 1-OPT-ZZ-001, ESF Actuation with Undervoltage and Degraded Voltage 1H Bus. Step 6.1.8 aligns the A train of CLS for testing and connects digital multimeters for system actuation monitoring. On step 6.1.8.m, the electrician inadvertently contacted the test lead to a non-targeted component in the cabinet and a spark was observed with a subsequent popping sound.
The control room received annunciators for logic actuation and safety injection with an immediate indication that the high head safety injection system was pumping through the cold leg injection path. Operators immediately entered AP-10.20, Response To Spurious Safety Injection With RCS Temperature Less Than 350F. Injection was terminated after three minutes. Pressurizer level had increased from approximately 23 percent to 42 percent. The Auxiliary Building Filter Exhaust Fans and EDG #1 auto started due to the logic signal. The logic signal also initiated an A train containment isolation, which resulted in the component cooling water supply valve to the A train of Residual Heat Removal (RHR) Heat Exchanger going closed.
Analysis:
Failure to install the test leads as required by procedure 1-OPT-ZZ-001 is a performance deficiency. The finding is more than minor because it is associated with the configuration control attribute of the Initiating Events Cornerstone and adversely affected the cornerstones objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. The finding, evaluated in accordance with NRC Inspection Manual Chapter (IMC) 0609, Appendix G, Shutdown Operations Significance Determination Process, 1, Checklist 3, identified the finding is of very low safety significance (Green)because the finding did not lead to a loss of decay heat removal. This finding has a cross cutting aspect in the work practices component in the Human Performance area, because human error prevention techniques were not properly used commensurate with the risk significance of the assigned task (H.4(a)).
Enforcement:
TS 6.4, Unit Operating Procedures and Programs, states that detailed written procedures with appropriate check-off lists and instructions shall be provided and followed. Contrary to the above, on October 26, 2010, the licensee failed to follow procedure 1-OPT-ZZ-001, ESF Actuation with Undervoltage and Degraded Voltage 1H Bus, resulting in an inadvertent actuation of safety injection. Because this finding is of very low safety significance and has been entered into the licensees CAP (CR 400908),this violation is being treated as a NCV, consistent with Section 2.3.2 of the NRC Enforcement Policy and is identified as: NCV 05000280/2010005-02, Failure to Follow Procedure Results in Inadvertent Actuation of Safety Injection.
RADIATION SAFETY
Cornerstones: Occupational Radiation Safety (OS) and Public Radiation Safety (PS)
2RS1 Radiological Hazard Assessment and Exposure Controls
a. Inspection Scope
Hazard Assessment and Instructions to workers During facility tours, the inspectors observed labeled radioactive material, postings for radiation areas and high radiation areas (HRAs) in the radiologically controlled area (RCA), and radioactive waste (radwaste) processing and storage locations. Inspectors also observed and evaluated labels on selected containers. The inspectors reviewed survey records for several plant areas including surveys for alpha emitters, hot particles, airborne radioactivity, gamma surveys within areas of high dose rate gradients, and pre-job surveys for upcoming tasks. Inspectors independently surveyed areas in the plant and compared results to radiological conditions and postings in the plant. Inspectors also reviewed air sample records and observed work in potential airborne areas to assess the location of air monitors.
The inspectors discussed changes to plant operations that could contribute to changing radiological conditions since the last inspection. Inspectors attended pre-job briefings for selected tasks and reviewed Radiation Work Permit (RWP) details to assess communication of radiological control requirements and current radiological conditions to workers. RWPs for work in airborne areas were also reviewed to assess airborne radioactive controls and monitoring.
Work Practices The inspectors evaluated access barrier effectiveness including key control for selected U1 and U2 Locked High Radiation Area (LHRA) and Very High Radiation Areas (VHRA) locations. Changes to procedural guidance for LHRA and VHRA controls were discussed with Health Physics (HP) supervisors. Controls and their implementation for storage of irradiated material within the Spent Fuel Pool (SFP) were reviewed and discussed. Areas where dose rates could change significantly as a result of plant shutdown and refueling operations were also discussed.
Occupational workers adherence to selected RWPs and HP technician (HPT)proficiency in providing job coverage were evaluated through direct observations and interviews with licensee staff. Electronic Dosimeter (ED) alarm set points and worker stay times were evaluated against area radiation survey results for jobs in lower containment and lower annulus. ED alarm logs were reviewed and worker response to dose and dose rate alarms during selected work activities was evaluated. HPT coverage and actions at the Unit 1 containment access point were reviewed and discussed in detail.
Control of Radioactive Material The inspectors observed surveys of material and personnel being released from the RCA using small article monitor, personnel contamination monitor, and portal monitor instruments. The inspectors discussed equipment sensitivity, alarm setpoints, and release program guidance with licensee staff.
In addition, the inspector reviewed controls for hand surveying large tools and equipment for release from the RCA and the PA. The inspectors also reviewed source inventory and discussed leak tests for selected sealed sources, and discussed nationally tracked source transactions with licensee staff.
Problem Identification and Resolution The inspectors reviewed selected Condition Reports (CR) associated with radiological hazard assessment and control. The reviewed items included CRs, self-assessments, and quality assurance audit documents. The inspectors evaluated the licensees ability to identify and resolve the issues in accordance with procedure PI-AA-200, Corrective Action.
Radiation protection activities were evaluated against the requirements of Updated Final Safety Analysis Report (UFSAR) Section 12; Technical Specification (TS), Section 6.4 10 CFR Parts 19 and 20; and approved licensee procedures. Licensee programs for monitoring materials and personnel released from the RCA were evaluated against 10 CFR Part 20 and IE Circular 81-07, Control of Radioactively Contaminated Material.
Documents reviewed are listed in Section 2RS1 of the Attachment.
The inspectors completed all specified line-items detailed in Inspection Procedure (IP)71124.01.
b. Findings
No findings were identified.
2RS2 As Low As Reasonably Achievable (ALARA)
a. Inspection Scope
ALARA Program Status The inspectors reviewed and discussed plant exposure history and current trends including the sites Three-Year Rolling Average (TYRA) collective exposure history for calendar year (CY) 2007, through CY 2009. Current and proposed activities to manage site collective exposure and trends regarding collective exposure were evaluated through review of previous TYRA collective exposure data, and review of the licensees 5-year ALARA program implementing plan. The inspectors reviewed the Licensees implementation of the use of Tungsten Vest as an ALARA tool and inspectors reviewed Licensees position paper, procedures, training records, survey methods, and dosimetry results for implementation of Effective Dose Equivalent (EDE)per Regulatory Guide 8.4, Methods for Measuring Effective Dose Equivalent from External Exposure, US Nuclear Regulatory Commission, July 2010, for compliance.
Current ALARA program guidance and recent changes, as applicable, regarding estimating and tracking exposure were discussed and evaluated.
Radiological Work Planning The inspectors reviewed planned work activities and their collective exposure estimates for the current Unit 1 Refueling Outage (RFO). Work activities, exposure estimates and mitigation activities were reviewed for the following high collective exposure tasks: reactor head disassembly and re-assembly; U1 containment scaffold installation and removal; and coatings, painting and all associated work in U1 containment. For the selected tasks, the inspectors reviewed dose mitigation actions and established dose goals. During the inspection, use of remote technologies including teledosimetry and remote visual monitoring were verified as specified in RWP or procedural guidance. Current collective dose data for selected tasks were compared with established estimates and, where applicable, changes to established estimates were discussed with responsible licensee ALARA Planning representatives. The inspectors reviewed previous post-job reviews conducted for the U2 RFO and verified that the items were entered into the licensees corrective action program for evaluation.
Verification of Dose Estimates and Exposure Tracking Systems The inspectors reviewed select ALARA work packages and discussed assumptions with responsible planning personal regarding the bases for the current estimates. The licensees on-line RWP cumulative dose data bases used to track and trend current personal and cumulative exposure data and/or to trigger additional ALARA Planning activities in accordance with current procedures were reviewed and discussed. Selected work-in-progress reviews for S/G secondary side activities and adjustments to cumulative exposure estimate data were evaluated against work scope changes or unanticipated elevated dose rates.
Source Term Reduction and Control The inspectors reviewed historical dose rate trends for shutdown chemistry, cleanup, and resultant chemistry and radiation protection trend-point data against the current U1 RFO data. Licensee actions to mitigate noble gas and iodine exposures resulting from fuel leaks were discussed in detail.
Problem Identification and Resolution The inspectors reviewed and discussed selected CRs associated with ALARA program implementation. The reviewed items included CRs, self-assessments, and quality assurance audit documents. The inspectors evaluated the licensees ability to identify, characterize, prioritize, and resolve the identified issues in accordance with licensee procedure PI-AA-200, Corrective Action.
The licensees ALARA program activities and results were evaluated against the requirements of UFSAR Section 12; Technical Specification (TS), Section 6.4; 10 CFR Parts 19 and 20; and approved licensee procedures. Records reviewed are listed in Sections 2RS1 and 2RS2 of the Attachment.
Radiation worker performance was reviewed as part of observations conducted for IP 71124.01 and is documented in section 2RS1.
b. Findings
No findings were identified.
2RS3 In-Plant Airborne Radioactivity Control and Mitigation
a. Inspection Scope
Engineering Controls: The inspectors reviewed the use of temporary and permanent engineering controls to mitigate airborne radioactivity during the refueling outage including the Containment Purge and Auxiliary Ventilation systems. The inspectors observed the use of high efficiency particulate air ventilation and vacuums to control contamination during surface disturbing work. Use of containment purge to reduce airborne levels in general areas was reviewed. The inspectors evaluated the effectiveness of continuous air monitors and air samplers placed in work areas to provide indication of increasing airborne levels.
Use of Respiratory Protection Devices The inspectors reviewed the use of respiratory protection devices to limit the intake of radioactive material. This included review of devices used for routine tasks and devices stored for use in emergency situations.
Selected Self-Contained Breathing Apparatus (SCBA) units, negative pressure respirators (NPRs), and Powered Air Purifying Respirators (PAPRs) staged for routine and emergency use in the Main Control Room and other locations were inspected for material condition, SCBA bottle air pressure, the number of units, and the number of spare masks and air bottles available. The inspectors reviewed maintenance records for selected SCBA units for the past two years and evaluated SCBA and NPR compliance with National Institute for Occupational Safety and Health certification requirements.
The inspectors also reviewed records of air quality testing for supplied-air devices and SCBA bottles.
The inspectors verified the licensee has procedures in place to ensure that the use of respiratory protection devices was ALARA when engineering controls were not practicable. Due to limited respirator use during the period of inspection, the training curriculum for respiratory protection users was reviewed for various types of respiratory protection devices and radworkers and control room operators were interviewed on the use of the devices including SCBA bottle change-out and use of corrective lens inserts.
Respirator qualification records and medical fitness records were reviewed for several Main Control Room operators and emergency responder personnel in the Maintenance and RP departments. In addition, qualifications for individuals responsible for testing and repairing SCBA vital components were evaluated through review of training records.
The inspectors verified that the licensee has procedural requirements in place for evaluating air samples for the presence of alpha emitters, and reviewed airborne radioactivity and contamination survey records for several plant areas to ensure air samples are screened and evaluated per the procedure requirements.
The inspectors walked-down the respirator issue and storage locations and verified that the equipment was appropriately stored and maintained. Records of monthly and quarterly inventory and inspection of the equipment were also reviewed by the inspectors. The inspectors discussed the process for issuing respirators, and verified that selected individuals qualified for respirator and/or self-contained breathing apparatus (SCBA) use had completed the required training, fit-test, and medical evaluation.
In addition, the inspectors walked-down the compressor used for filling SCBA bottles and reviewed records of Grade D air testing for the compressor and service air systems.
The ability to fill and transport bottles to the control room during an emergency was assessed by the inspectors.
Self-Contained Breathing Apparatus for Emergency Use The inspectors reviewed the status and surveillance records of SCBAs staged for in-plant use during emergencies through review of records and walk-down of SCBA staged in the control room, technical support center, and operations support center. The walk-down verified the appropriate number of SCBA kits were staged as specified by the emergency plan, appropriate mask sizes and types available for use, and, through interviews, that users were knowledgeable of storage locations of SCBA, spare masks, and vision correction, as well as how to don and use the equipment. Selected maintenance records for SCBA units and air cylinder hydrostatic testing documentation were reviewed.
Problem Identification and Resolution Licensee CAP documents associated with the control and mitigation of in-plant radioactivity were reviewed and assessed. This included review of selected CRs related to use of respiratory protection devices including SCBA. The inspectors evaluated the licensees ability to identify, characterize, prioritize, and resolve the identified issues in accordance with procedure PI-AA-200, Corrective Action. The inspectors also evaluated the scope of the licensees internal audit program and reviewed recent assessment results. Licensee CAP documents reviewed are listed in Section 2RS3 of the Attachment.
Radiation protection activities were evaluated against the requirements UFSAR Section 11; 10 CFR Parts 19 and 20; Regulatory Guide 8.15, Acceptable Programs for Respiratory Protection; and approved licensee procedures. Records reviewed are listed in Section 2RS3 of the Attachment.
b. Findings
No findings were identified.
OTHER ACTIVITIES
4OA1 Performance Indicator (PI) Verification
a. Inspection Scope
The inspectors sampled licensee data for the Performance Indicators (PIs) listed below.
To verify the accuracy of the PI data reported during the period reviewed, PI definitions and guidance contained in NEI 99-02, Regulatory Assessment Indicator Guideline, Rev.
6, were used to verify the basis for each data element.
.1 Mitigating Systems Cornerstone
Mitigating Systems Performance Index (MSPI)
The inspectors reviewed, on a sampling basis, the Mitigating Systems Performance Index performance indicators (PI) for Units 1 and 2 for the fourth quarter 2009 through the third quarter of 2010. The evaluation included verification of compliance with the licensees NRC Mitigating System Performance Index Basis Document, and review of selected consolidated entry forms for accuracy of information entered into the MSPI calculation computer program. Data reviewed for the monitored components included unavailability, reliability and run times; the number of starts, and failures to start and run.
Information from logs and other plant documentation was used to verify the data was accurate. The data gathering and entry was discussed with cognizant personnel
- Unit 1 and 2 High Pressure Injection System
- Unit 1 and 2 Cooling Water System
- Unit 1 and 2 Residual Heat Removal System
.2 Occupational Radiation Safety Cornerstone
The inspectors reviewed the Occupational Exposure Control Effectiveness PI results for the ORS Cornerstone from January, to October 2010. For the assessment period, the inspectors reviewed ED alarm logs and selected CRs related to controls for exposure significant areas. The inspectors also reviewed licensee procedural guidance for collecting and documenting PI data. Documents reviewed are listed in sections 2RS1 and 4OA1 of the Attachment.
Public Radiation Safety (PS) Cornerstone The inspectors reviewed the Radiological Effluent Technical Specification/Offsite Dose Calculation Manual Radiological Effluent Occurrences PI results from January, through October 2010. The inspectors reviewed CRs, effluent dose data, and licensee procedural guidance for classifying and reporting PI events. The inspectors also interviewed licensee personnel responsible for collecting and reporting the PI data.
Reviewed documents are listed in Section 4OA1 of the Attachment.
b. Findings
No findings were identified.
4OA2 Identification and Resolution of Problems
.1 Daily Reviews of items Entered into the Corrective Action Program:
As required by NRC Inspection Procedure 71152, Identification and Resolution of Problems, and in order to help identify repetitive equipment failures or specific human performance issues for follow-up, the inspectors performed a daily screening of items entered into the licensees CAP. This review was accomplished by reviewing daily CR report summaries and periodically attending daily CR Review Team meetings.
.2 Semi-Annual Trend Review
a. Inspection Scope
As required by Inspection Procedure 71152, Identification and Resolution of Problems, the inspectors performed a review of the licensees corrective action program and associated documents to identify trends that could indicate the existence of a more significant safety issue. The inspectors review focused on repetitive equipment and corrective maintenance issues but also considered the results of daily inspector corrective action program item screening. The review also included issues documented outside the normal correction action program in system health reports; self-assessment reports, control room status logs, and lists of control room deficiencies. The inspectors review nominally considered the twelve-month period of January 1, 2010 through December 31, 2010.
b. Findings and Observations
No findings were identified. In general, the licensee has identified trends and has appropriately addressed the trends with their CAP.
4OA5 Other Activities
.1 Quarterly Resident Inspector Observations of Security Personnel and Activities
a. Inspection Scope
During the inspection period, the inspectors conducted observations of security force personnel and activities to ensure that the activities were consistent with the licensee security procedures and regulatory requirements relating to nuclear plant security.
These observations took place during both normal and off-normal plant working hours.
These quarterly resident inspector observations of security force personnel and activities did not constitute any additional inspection samples. Rather, they were considered an integral part of the inspectors normal plant status review and inspection activities.
b. Findings
No findings were identified.
.2 (Closed) TI 2515/179 Verification of Licensee Responses to NRC Requirement for
Inventories of Materials Tracked in the National Source Tracking System (NSTS)
The inspectors reviewed the source inventories and identified category 1 and 2 sources that required reporting. The inspectors visually verified the presence of the applicable apparatus and verified presence of the sources by means of a radiation survey through the shielding using a handheld survey meter. The inspectors reviewed the licensees records of the submittals to the NSTS. This activity was performed concurrently with the performance of IP 71124.01. Since there were no identified compliance issues, TI 2515/179 is deemed to be complete for this licensee.
4OA6 Meetings, Including Exit
Exit Meeting Summary
An interim exit with licensee management and staff was conducted on November 6 and the final exit with licensee management and staff was conducted on November 12, 2010, to discuss the results of the DRS Inservice Inspection. Proprietary information reviewed by the team as part of the routine inspection activities was returned to the licensee in accordance with prescribed controls.
On November 19, 2010, the inspectors discussed results of the onsite radiation protection inspection with Mr. Bischof, Site Vice-President, and other cognizant licensee representatives. The inspectors noted that proprietary information was reviewed during the course of the inspection but would not be included in the documented report.
On January 11, 2011 the inspection results were presented to Mr. Bischof and other members of his staff, who acknowledged the findings. The inspectors asked the licensee whether any of the material examined during the inspection should be considered proprietary. No proprietary information was identified.
4OA7 Licensee-Identified Violation
The following finding of very low significance was identified by the licensee and is a violation of NRC requirements which meet the criteria of Section 2.3.2 of the NRC Enforcement Policy, NUREG-1600, for characterization as a Green Non-Cited Violation (NCV).
- 10 CFR 50, Appendix B, Criterion III, Design Control, requires, in part, that design control measures shall provide for verifying or checking the adequacy of designs such as by the performance of design reviews, by the use of alternate or simplified calculational methods, or by the performance of a suitable testing program. Contrary to this, the licensee identified in CR398124 that they failed to verify the adequacy of design changes that implemented a new drainage path through the primary shield wall. The design changes were inadequate because the impact to the sump from Microtherm insulation known to be installed on the reactor vessel head had not been evaluated or tested. The licensee removed all Microtherm from the Unit 1 reactor head and plans on removing all Microtherm from the Unit 2 reactor head during the outage in Spring 2011. The violation was determined to be of very low safety significance because the licensee was able to show that the debris loading was bounded by testing.
ATTACHMENT: SUPPPLEMENTAL INFORMATION
SUPPLEMENTAL INFORMATION
KEY POINTS OF CONTACT
Licensee Personnel
- M. Adams, Director, Station Engineering
- G. Bischof, Site Vice President
- P. Blasioli, Director Nuclear Protection & Emergency Preparedness
- D. Boone, Supervisor Exposure Control
- E. Collins, Manager Emergency Preparedness
- J. Eggart, Manager, Radiation Protection & Chemistry
- B. Garber, Supervisor, Licensing
- P. Harris, Supervisor Rad Analysis and Instrumentation
- L. Hilbert, Manager Outage and Planning
- B. Hoffner, Fleet Emergency Preparedness Manager
- R. Johnson, Manager, Operations
- C. Olsen, Manager, Site Engineering
- K. Sloane, Plant Manager (Nuclear)
- M. Smith, Manager Nuclear Oversight
- B. Stanley, Director, Station Safety and Licensing
- N. Turner, Supervisor Emergency Preparedness
- M. Wilda, Supervisor, Auxiliary Systems
LIST OF ITEMS
OPENED, CLOSED AND DISCUSSED
Opened
- 05000280, 281/2010005-01 AV Failure to Correct Multiple Conditions Adverse to Fire Protection (Section 1R15)
- 05000280, 281/2010005-04 AV Inadequate Risk Evaluation for Leaving Common ESGR HELB Door Open (Section 1R15)
Opened and Closed
- 05000280/2010005-02 NCV Failure to Follow Procedure Results in Inadvertent Actuation of Safety Injection (Section 1R22)
- 05000280/2010005-03 NCV Heavy Load Lift of the 1B RCP Motor Over Exposed Reactor Fuel (Section 1R20)
Closed
- 05000280, 281/2515/179 TI Verification of Licensee Responses to NRC Requirement for Inventories of Materials Tracked in the National Source Tracking System (NSTS)
(Section 4OA5)