IR 05000261/2007002
| ML071100293 | |
| Person / Time | |
|---|---|
| Site: | Robinson |
| Issue date: | 04/20/2007 |
| From: | Randy Musser NRC/RGN-II/DRP/RPB4 |
| To: | Walt T Carolina Power & Light Co |
| References | |
| IR-07-002 | |
| Download: ML071100293 (40) | |
Text
ril 20, 2007
SUBJECT:
H.B. ROBINSON STEAM ELECTRIC PLANT - NRC INTEGRATED INSPECTION REPORT 05000261/2007002
Dear Mr. Walt:
On March 31, 2007, the US Nuclear Regulatory Commission (NRC) completed an inspection at your H.B. Robinson reactor facility. The enclosed integrated inspection report documents the inspection findings, which were discussed on April 4, with you and other members of your staff.
The inspection examined activities conducted under your license as they relate to safety and compliance with the Commissions rules and regulations and with the conditions of your license.
The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel.
Based on the results of this inspection, the inspectors identified one finding of very low safety significance (Green). This finding was determined to involve violations of NRC requirements.
However, because of its very low safety significance and because it has been entered into your Corrective Action Program (CAP), the NRC is treating this issue as a non-cited violation (NCV),
in accordance with Section VI.A.1 of the NRCs Enforcement Policy. If you contest this 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 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 H.B. Robinson facility.
In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its enclosure will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's
document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
/RA/
Randall A. Musser, Chief Reactor Projects Branch 4 Division of Reactor Projects Docket No.: 50-261 License No.: DPR-23
Enclosure:
Inspection Report 05000261/2007002 w/Attachment: Supplemental Information
REGION II==
Docket No: 50-261 License No: DPR-23 Report No: 005000261/2007002 Facility: H. B. Robinson Steam Electric Plant, Unit 2 Location: 3581 West Entrance Road Hartsville, SC 29550 Dates: January 1, 2007 through March 31, 2007 Inspectors: R. Hagar, Senior Resident Inspector D. Jones, Resident Inspector B. Caballero, Operator Licensing Inspector, (Section 1R11)
J. Díaz Vélez,, Health Physicist (Section 2OS3)
H. Gepford, Senior Health Physicist (Section 2PS1)
W. Loo, Senior Health Physicist (Sections 2PS3, 4OA1 and 4OA5)
E. Lea, Lead Operator Licensing Inspector, (Section 1R11)
Approved by: R. Musser, Chief Reactor Projects Branch 4 Division of Reactor Projects Enclosure
SUMMARY OF FINDINGS
IR 05000261/2007-002, Carolina Power and Light Company; on 01/01/2007-03/31/2007; H.B.
Robinson Steam Electric Plant, Unit 2; Emergency Preparedness.
The report covered a three month period of inspection by resident inspectors, two operator licensing inspectors, two senior health physicists, and a health physicist. One non-cited violation was identified.
The significance of most findings is indicated by their color (Green, White, Yellow, Red) using IMC 0609, Significance Determination Process (SDP). Findings for which the SDP does not apply may be Green or be assigned a severity level after NRC management review. The NRC's program for overseeing the safe operation of commercial nuclear power reactors is described in NUREG-1649,
Reactor Oversight Process, Revision 3, dated July 2000.
NRC-Identified and Self-Revealing Findings
Cornerstone: Emergency Preparedness
- Green.
An NRC-identified non-cited violation of 10 CFR 50.47(b)(10) was identified for the failure to provide adequate respiratory protection equipment for emergency response, compromising the protective actions developed for the plume exposure pathway for emergency workers. An adequate quantity of small and large sized self-contained breathing apparatus (SCBA) respirator masks were not available in the control room for licensed plant operators that were fit-tested for said sizes. This issue was entered into the licensees corrective action program.
This finding is greater than minor because it is associated with the Emergency Preparedness cornerstone attribute of Response Organization Performance and adversely affects the cornerstone objective of ensuring the licensee is capable of implementing adequate measures to protect the health and safety of the public in the event of a radiological emergency. The finding was evaluated using Sheet 1, Failure to Comply, of the Emergency Preparedness SDP.
The issue described was a planning standard problem, was not a risk-significant planning standard problem, and did not involve a planning standard function failure. Therefore, the finding is of very low safety significance (Green). This finding has a cross-cutting aspect in the area of human performance because the procedure used for managing SCBA equipment did not contain information regarding the mask sizes required to be staged in the control room based on fit-test results for emergency responders, resulting an inadequate number of large and small sized masks being available. (Section 2OS3)
Licensee-Identified Violations
None.
REPORT DETAILS
Summary of Plant Status The unit began the inspection period at full rated thermal power, and operated at full power until March 23, when the unit began an end-of-cycle coastdown at the rate of approximately -1% of rated thermal power per day. At the end of the inspection period, the unit was therefore operating at 92% of rated thermal power.
REACTOR SAFETY
Cornerstones: Initiating Events, Mitigating Systems, Barrier Integrity
1R04 Equipment Alignment
a. Inspection Scope
Partial System Walkdowns:
The inspectors performed the following three partial system walkdowns, while the indicated structures, systems, and/or components (SSCs) were out-of-service for maintenance and testing:
System Walked Down SSC Out of Service Date Inspected Service Water Train A D Service Water Pump January 10 Steam Driven Auxiliary Feed A Motor Driven Feed Water March 7 Water Train Train A Service Water Booster Pump A Service Water Booster March 20 Train B Pump To evaluate the operability of the selected trains or systems under these conditions, the inspectors compared observed positions of valves, switches, and electrical power breakers to the procedures and drawings listed in the Attachment.
Complete System Walkdown:
The inspectors conducted a detailed review of the alignment and condition of the Chemical and Volume Control System to verify that the existing alignment of the system was consistent with the correct alignment. To determine the correct system alignment, the inspectors reviewed the procedures, drawings, and the Updated Final Safety Analysis Report (UFSAR) section listed in the Attachment. The inspectors also walked down the system. During the walkdown, the inspectors reviewed the following:
- Valves were correctly positioned and did not exhibit leakage that would impact the functions of any given valve.
- Electrical power was available as required.
- Major system components were correctly labeled, lubricated, cooled, ventilated, etc.
- Hangers and supports were correctly installed and functional.
- Essential support systems were operational.
- Ancillary equipment or debris did not interfere with system performance.
- Tagging clearances were appropriate.
- Valves were locked as required by the locked valve program.
The inspectors reviewed the documents listed in the Attachment to verify that the ability of the system to perform its functions could not be affected by outstanding design issues, temporary modifications, operator workarounds, adverse conditions, and other system-related issues tracked by the engineering department.
The inspectors reviewed the following action requests (ARs) associated with this area to verify that the licensee identified and implemented appropriate corrective actions:
- AR 158872158872 Dedicated Shutdown Distribution Panel Circuit 6 Found Out of Position
- AR 169711-02, Reactor Coolant Pump Vibration Monitor De-energized Unexpectedly
b. Findings
No findings of significance were identified.
1R05 Fire Protection
a. Inspection Scope
For the six areas identified below, the inspectors reviewed the control of transient combustible material and ignition sources, fire detection and suppression capabilities, fire barriers, and any related compensatory measures to verify that those items were consistent with UFSAR Section 9.5.1, Fire Protection System, and UFSAR Appendix 9.5.A, Fire Hazards
Analysis.
The inspectors walked down accessible portions of each area and reviewed results from related surveillance tests to verify that conditions in these areas were consistent with descriptions of the areas in the UFSAR. Documents reviewed are listed in the Attachment.
The following areas were inspected:
Fire Zone Description Diesel Generator B Room Battery Room Control Room 25A/B Turbine Building East and West Ground Floor 25D Dedicated Shutdown Diesel Generator Service Water Pump Area Also, to evaluate the readiness of personnel to prevent and fight fires, the inspectors observed fire brigade performance during the unannounced fire drill in the charging pump room on February 1. That drill challenged the fire brigade to extinguish a simulated oil fire in the vicinity of the B charging pump. Documents reviewed are listed in the Attachment.
The inspectors reviewed the following ARs associated with this area to verify that the licensee identified and implemented appropriate corrective actions:
- AR 211951211951 Equipment Placed Near Ramp to Fire Brigade Storage
- AR 212159212159 Process Improvements for Response to Fire Alarm in the Containment Vessel
- AR 211003211003 Access to Material Needed for Fire Emergency
b. Findings
No findings of significance were identified.
1R06 Flood Protection Measures
a. Inspection Scope
External Flooding Because the A and B emergency diesel generator rooms contain risk-significant components which are susceptible to flooding from external sources, the inspectors walked down those rooms to verify that the area configuration, features, and equipment functions were consistent with the descriptions and assumptions used in UFSAR Section 3.4, Water Level (Flood) Design, and in the supporting basis documents listed in the Attachment.
b. Findings
No findings of significance were identified.
1R07 Heat Sink Performance
a. Inspection Scope
The inspectors observed the inspection of the A component cooling water heat exchanger to verify that inspection results were appropriately categorized against the pre-established acceptance criteria described in procedure CM-201, Safety Related Heat Exchanger Maintenance, Rev. 39. The inspectors also verified that the frequency of inspection was sufficient to detect degradation prior to loss of heat removal capability below design basis values. Documents reviewed are listed in the Attachment.
b. Findings
No findings of significance were identified.
1R11 Licensed Operator Requalification
.1 Quarterly Review
a. Inspection Scope
The inspectors observed licensed-operator performance during requalification simulator training for crew two to verify that operator performance was consistent with expected operator performance, as described in Operations Training LOCT, Rev. 2. This training tested the operators ability to take the reactor critical, perform low power physics testing and synchronize the unit to the grid. The inspectors focused on clarity and formality of communication, the use of procedures, alarm response, control board manipulations, group dynamics, and supervisory oversight. Documents reviewed are listed in the Attachment.
b. Findings
No findings of significance were identified.
.2 Biennial Review
a. Inspection Scope
The inspectors reviewed the facility operating history and documents associated with the licensed operator requalification program in preparation for this inspection. While on site the inspectors reviewed documentation, interviewed licensee personnel, and observed the administration of operating tests and written examinations associated with the operator requalification program. Each of the activities performed by the inspectors was done to assess the effectiveness of the licensee in implementing requalification requirements identified in 10 CFR Part 55, Operators Licenses. The evaluations were also performed to determine if the licensee effectively implemented operator requalification guidelines established in NUREG 1021, Operator Licensing Examination Standards for Power Reactors, and Inspection Procedure 71111.11, Licensed Operator Requalification Program. The inspectors also evaluated the simulation facility for adequacy for use in operator licensing examinations using ANSI/ANS-3.5-1998. The inspectors observed one crew during the performance of the operating tests. Documentation reviewed included written examinations, Job Performance Measures (JPMs), simulator scenarios, licensee procedures, on-shift records, licensed operator qualification records, watchstanding and medical records, simulator modification request records and performance test records, feedback forms, and remediation plans. Documents reviewed are listed in the Attachment.
Following the completion of the annual operating tests and written examinations, which ended on March 1, 2007, the inspectors reviewed the overall pass/fail results of the individual JPM operating tests, the simulator operating tests and the written examinations administered by the licensee during the operator licensing requalification cycle. 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 of significance were identified.
1R12 Maintenance Effectiveness
a. Inspection Scope
The inspectors reviewed the two degraded SSC/function performance problems or conditions listed below to verify the appropriate handling of these performance problems or conditions in accordance with 10 CFR 50, Appendix B, Criterion XVI, Corrective Action, and 10 CFR 50.65, Maintenance Rule. Documents reviewed are listed in the Attachment.
The problems/conditions and their corresponding ARs were:
Performance Problem/Condition AR Steam-driven auxiliary feedwater pump suction pressure fluctuations 166937 In Lead/Lag module PM-455A, a low-pressure reactor trip signal was 213638 found out of tolerance During the reviews, the inspectors focused on the following:
- Appropriate work practices,
- Identifying and addressing common cause failures,
- Scoping in accordance with 10 CFR 50,65(b),
- Characterizing reliability issues (performance),
- Charging unavailability (performance),
- Trending key parameters (condition monitoring),
- 10 CFR 50,65(a)(1) or (a)(2) classification and reclassification, and
- Appropriateness of performance criteria for SSCs/functions classified (a)(2) and/or appropriateness and adequacy of goals and corrective actions for SSCs/functions classified (a)(1).
b. Findings
No findings of significance were identified.
1R13 Maintenance Risk Assessments and Emergent Work Evaluation
a. Inspection Scope
For the four time periods listed below, the inspectors reviewed risk assessments and related activities to verify that the licensee performed adequate risk assessments and implemented appropriate risk-management actions when required by 10 CFR 50.65(a)(4). For emergent work, the inspectors also verified that any increase in risk was promptly assessed, and that appropriate risk-management actions were promptly implemented. Documents reviewed are listed in the Attachment. Those periods included the following:
- The work week of January 1 - January 5, including emergent maintenance on the B charging pump and the A circulating water pump
- The work week of January 15 - January 19, including scheduled maintenance on the A circulating water pump that affected the availability of the A service water pump and the motor-driven firewater pump
- The work week of February 16 - February 23, including scheduled maintenance on components in the residual heat removal system
- The work week of March 5 - March 9, including emergent maintenance on the B motor driven auxiliary feedwater train
b. Findings
No findings of significance were identified.
1R15 Operability Evaluations
a. Inspection Scope
The inspectors reviewed the four operability determinations associated with the ARs listed below. The inspectors assessed the accuracy of the evaluations, the use and control of any necessary compensatory measures, and compliance with the Technical Specification (TS). The inspectors verified that the operability determinations were made as specified by Procedure OPS-NGGC-1305, Operability Determinations. The inspectors compared the justifications provided in the determinations to the requirements from the TS, the UFSAR, associated design-basis documents to verify that operability was properly justified and the subject components or systems remained available, such that no unrecognized increase in risk occurred:
- AR 217948217948 Suspected Leakage into A Seal Injection Filter
- AR 219365219365 C Steam Generator Manway Steam Leak
- AR 223822223822 [Auxiliary Feedwater Pump A Flow Control Valve] FCV-1424 went from closed to [neither fully closed nor fully open] status
- AR 226215226215 Operability Determination for Emergency Diesel Generator A (Fuel Racks Not Closed)
Documents reviewed are listed in the Attachment.
b. Findings
No findings of significance were identified.
1R17 Permanent Plant Modifications
a. Inspection Scope
The inspectors reviewed the modification described in Engineering Change 64814, Install a Valve in Series with SI-888R to Perform Throttling, to verify that:
- This modification did not degrade the design bases, licensing bases, and performance capabilities of risk significant SSCs,
- Implementing this modification did not place the plant in an unsafe condition, and
- The design, implementation, and testing of this modification satisfied the requirements of Procedure EGR-NGGC-005, Engineering Change, and 10 CFR 50, Appendix B, Criterion III, Design Control.
Documents reviewed are listed in the Attachment.
b. Findings
No findings of significance were identified.
1R19 Post Maintenance Testing
a. Inspection Scope
For the five post-maintenance tests listed below, the inspectors witnessed the test and/or reviewed the test data to verify that test results adequately demonstrated restoration of the affected safety functions described in the UFSAR and TS. Documents reviewed are listed in the Attachment.
The inspectors witnessed/reviewed the following tests:
Related Test Procedure Title Maintenance Activity Date Inspected OST-207 Comprehensive Flow Replace flow control Test for the Motor valve, FCV-1424 January 22 Driven Auxiliary Feedwater Pumps OST-352-4 Comprehensive Flow Replace pump seals February 1 Test for Containment Spray Pump B OST-201-2 [Motor-Driven Maintenance and February 27 Auxiliary Feedwater inspection of the pump System] Component motor breaker Test - Train B MST-014 Steam Generator Replacement of a Pressure Protection signal comparator for March 15 Channel Testing steam generator pressure channel 486 OST-352-3 Comprehensive Flow Limitorque grease Test for Containment inspection and meggar March 21 Spray Pump A testing
b. Findings
No findings of significance were identified.
1R20 Refueling and Outage Activities
Review of Outage Plan
a. Inspection Scope
For the outage scheduled to begin on April 7, the inspectors reviewed the outage risk control plan to verify that the licensee had considered risk in developing the outage schedule, had performed adequate risk assessments, and had planned to implement appropriate risk-management strategies when required by 10 CFR 50.65(a)(4).
Documents reviewed are listed in the Attachment.
b. Findings
No findings of significance were identified.
1R22 Surveillance Testing
a. Inspection Scope
For the six surveillance tests listed below, the inspectors witnessed testing and/or reviewed the test data to verify that the systems, structures, and components involved in these tests satisfied the requirements described in the TS, the UFSAR, and applicable licensee procedures, and that the tests demonstrated that the SSCs were capable of performing their intended safety functions. Documents reviewed are listed in the Attachment.
Test Procedure Title Date Inspected OST-014 [Local Leak Rate Test] of Personnel January 24 Air Lock Door Seals OST-051* Reactor Coolant System Leakage February 5 Evaluation MST-016 Containment Pressure Protection February 7 Channel (Set I, II, and III) Testing OST-101-7 Comprehensive Flow Test for February 15 Charging Pump B EST-010** Containment Personnel Airlock February 27 Leakage Test (Semiannual)
OST-910 Dedicated Shutdown Diesel March 8 Generator (Monthly)
- This procedure was a Reactor Coolant System leakage detection surveillance.
- This procedure included testing of a large containment isolation valve.
b. Findings
No findings of significance were identified.
1R23 Temporary Plant Modifications
a. Inspection Scope
The inspectors reviewed the temporary modification described in Engineering Change 66354, Temporary Cooling Fans for Main Transformer C to verify that there was no significant impact on the operation of the main transformers, and to verify that the modification satisfied the requirements of Procedure EGR-NGGC-005, Engineering Change.
b. Findings
No findings of significance were identified.
RADIATION SAFETY
Cornerstones: Occupational Radiation Safety (OS) and Public Radiation Safety (PS) 2OS3 Radiation Monitoring Instrumentation and Protective Equipment
a. Inspection Scope
Radiation Monitoring Instrumentation and Post-Accident Sampling During tours of the Auxiliary Building and Spent Fuel Pit area, the inspectors observed installed radiation detection equipment including the following instrument types: Area Radiation Monitors, Continuous Air Monitors, Personnel Contamination Monitors (PCMs), and components of the Post-Accident Sampling System. The inspectors observed the physical location of the components and noted the material condition. This inspection did not evaluate the completion and adequacy of radiation survey instrument calibrations performed by the licensees central calibration facility located at the Harris Environmental Monitoring Laboratory. These activities are reviewed during the biannual Harris inspection of IP 71121.03.
During equipment walk-downs, the inspectors observed functional checks of various fixed and portable radiation monitoring/detection instruments. The observations included source/response checks of PCM and portal monitoring (PM) equipment, portable ion chambers and telepoles, SAMs, and a Whole Body Counter (WBC). The inspectors reviewed calibration records and discussed the functional testing and testing intervals for selected PCM and PM equipment located at the RCA exit. PCM equipment detection capabilities were demonstrated using a low-level mixed radionuclide source that was passed through the equipment. The inspectors also observed demonstrations of instrument calibrations checks, including a WBC, a Eberline 6112B (Teletector), and an FH-40 (FAG). The 10 CFR Part 61 analysis for Dry Active Waste was reviewed to determine if calibration and response check sources are representative of the plant source term.
The inspectors reviewed calibration records for select PCMs, PMs, SAMs, WBCs, Eberline 6112Bs, and an FH-40s (FAG). In addition, calibration records were reviewed for R-1 thru R-8, R-9, R-30, R-31A, B, C, R-32A & B and R-33 radiation monitors. The records were evaluated to determine frequency and adequacy of the calibrations. Calibration stickers on portable survey instruments were noted during inspection of storage areas for ready-to-use equipment.
Operability and reliability of selected radiation detection instruments were reviewed against details documented in the following: 10 CFR Part 20; NUREG-0737, Clarification of TMI Action Plan Requirements; TS Section 3; UFSAR Chapter 12; and applicable licensee procedures. Documents reviewed during the inspection are listed in Section 2OS3 of the report
.
Self-Contained Breathing Apparatus (SCBA) and Protective Equipment Selected SCBA units staged for emergency use in the Control Room and other locations were inspected for material condition, air pressure, mask sizes provided, and number of units available. The inspectors also reviewed maintenance records for components of selected SCBA units for the past five years and certification records associated with supplied air quality.
Qualifications for licensee staff responsible for testing SCBA equipment were evaluated.
Maintenance of SCBA equipment was reviewed to determine if repairs were performed by qualified individuals. In addition, selected Control Room operators were interviewed to determine their knowledge of available SCBA equipment locations, including spectacles (corrective lens inserts) if needed, and their training on bottle change-out during periods of extended SCBA use. The inspectors also verified Control Room operators knowledge of their SCBA mask size for which they were fit tested and their knowledge of mask availability if a fitting size was not found inside SCBA kits at the Control Room. Respirator qualification records were reviewed for several Control Room operators and Maintenance department personnel assigned emergency response duties.
Licensee activities associated with maintenance and use of respiratory protection equipment were reviewed against 10 CFR Part 20; RG 8.15, Acceptable Programs for Respiratory Protection; ANSI-Z88.2-1992, American National Standard for Respiratory Protection; and applicable licensee procedures. Documents reviewed are listed in the Attachment.
The inspectors completed nine of the specified line-item samples detailed in IP 71121.03.
b. Findings
Introduction.
A Green NRC-identified non-cited violation (NCV) of 10 CFR 50.47(b)(10) was identified for the failure to provide adequate respiratory protection equipment for emergency response, compromising the protective actions developed for the plume exposure pathway for emergency workers. An adequate quantity of small and large sized self-contained breathing apparatus (SCBA) respirator masks were not available in the control room for licensed plant operators that were fit-tested for said sizes.
Description.
The inspectors evaluated the adequacy of SCBA units staged in the control room for emergency use. Through direct observations at the control room, it was determined that the licensee staged five SCBA units for emergency use. The inspectors determined that, as of January 10, 2007, four units contained medium respirator masks; and one unit contained a small respirator mask. Based on the records reviewed and discussions with licensee personnel, the inspectors noted that no large respirator masks had been staged in the control room. Based on licensee records, the inspectors noted that fifteen individuals in the Emergency Response Organization group were fitted for other than medium sized respirator masks. HPS-NGGC-0015, Managing Respirators, Rev. 5, Section 5.0, prerequisites, states that employees must have a current fit test qualification for the type and size respirators to be worn before the program will permit respirator issue. However, the procedure does not provide guidance for ensuring that an appropriate number of masks corresponding to the fit-test results for emergency responders are staged in emergency response SCBA kits/locations. In the event of an emergency requiring immediate respiratory protection, licensed operators who were fit-tested in large or small respirator masks would not have been qualified to use the pre-staged SCBA equipment and may have been unable to function in the event the control room becomes inhabitable, must evacuate the control room, or must perform emergency response functions in a hazardous environment outside of the control room.
Analysis.
This finding is greater than minor because it is associated with the Emergency Preparedness cornerstone attribute of Response Organization Performance and adversely affects the cornerstone objective of ensuring the licensee is capable of implementing adequate measures to protect the health and safety of the public in the event of a radiological emergency.
The finding was evaluated using Sheet 1, Failure to Comply, of the Emergency Preparedness SDP. The issue described was a planning standard problem, although not a risk-significant planning standard problem, and did not involve a planning standard function failure. Therefore, the finding is of very low safety significance (Green). This finding has a cross-cutting aspect in the area of human performance because the procedure used for managing SCBA equipment did not contain information regarding the mask sizes required to be staged in the control room based on fit-test results for emergency responders, resulting an inadequate number of large and small sized masks being available.
Enforcement.
10 CFR 50.47(b)(10) states, in part, that a range of protective actions will be developed for the plume exposure pathway Emergency Planning Zone (EPZ) for emergency workers. Contrary to the above, as of January 10, 2007, the licensee failed to provide adequate respiratory protective equipment, i.e., SCBA respirator masks for licensed plant operators with emergency response functions fit-tested for small and large sized masks. HPS-NGGC-0015, Managing Respirators, Rev. 5, Section 5.0, prerequisites, states that employees must have a current fit test qualification for the type and size respirator to be worn before the program will permit respirator issue. Because this finding is of very low safety significance and has been entered into the licensees corrective action program (AR No. 00218715), this violation is being treated as an NCV, consistent with Section VI.A of the NRC Enforcement Policy: NCV 05000261/2007002-01, Failure to Provide Adequate Respiratory Protection Equipment for Emergency Response.
Problem Identification and Resolution ARs associated with instrumentation and protective equipment were reviewed and assessed. The inspectors evaluated the licensees ability to identify, characterize, prioritize, and resolve the identified issues in accordance with CAP-NGGC-0200, Corrective Action Program, Rev. 18. Documents reviewed are listed in Section 2OS3 of the report Attachment.
2PS1 Radioactive Gaseous and Liquid Effluent Treatment and Monitoring Systems
a. Inspection Scope
Effluent Monitoring and Radwaste Equipment During inspector walk-downs, accessible sections of the liquid and gaseous radioactive waste (radwaste) processing and effluent systems were evaluated for material condition and conformance with system design diagrams.
The evaluated systems included selected radwaste system processing tanks, pumps, valves, and piping including those associated with the gas decay tanks, gas analyzer, waste condensate tanks, waste holdup tank, drain tanks, and monitor tanks. In addition, liquid and gaseous waste processing and effluent radiation monitoring equipment and sample lines for the containment vessel particulate and gaseous monitors (R-11, R-12), plant vent exhaust monitor skid and sampling lines (R-14), fuel handling building basement and upper level exhaust monitors (R-20, R-21), steam generator blowdown monitors (R-19A/B/C), liquid waste disposal monitor (R-18), and condensate polisher liquid waste monitor (R-37) were evaluated during walk-downs. For select process monitors, local readouts were compared with readings in the control room. The inspectors interviewed chemistry supervision and engineering personnel regarding radwaste equipment configuration and effluent monitor operation, including changes made to the R-14 monitor skid and sampling equipment.
The inspectors reviewed performance records and calibration results for selected radiation monitors and ventilation exhaust systems. For the reviewed monitoring systems, the inspectors reviewed the most recent calibration records, including the functional/flow checks, as appropriate. The inspectors reviewed the out-of-service (OOS) monitors from February 2005 through November 2006 and verified that required compensatory sampling was performed for selected systems. The most recent surveillances on the emergency operations facility, spent fuel pool (SFP), and containment purge exhaust ventilation systems were reviewed.
Performance and operations of the systems were reviewed and discussed with cognizant licensee personnel.
Installed configuration, material condition, operability, and reliability of selected effluent sampling and monitoring equipment were reviewed against details documented in the following:
10 CFR Part 20; American Nuclear Standards Institute (ANSI)/American Society of Mechanical Engineers (ASME) N509-1976, Nuclear Power Plant Air Cleaning Units and Components, and ANSI N510-1975, Testing of Nuclear Air-cleaning Systems; Regulatory Guide (RG) 1.21, Measuring, Evaluating and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Materials In Liquid and Gaseous Effluents from Light-Water Cooled Nuclear Power Plants and RG 1.143 Design Guidance for Radioactive Waste Management Systems, Structures, and Components Installed in Light Water Cooled Reactors; Offsite Dose Calculation Manual (ODCM), Revision (Rev.) 27; Technical Specifications (TS) Section 5.5.4, Radioactive Effluent Controls Program; and Updated Final Safety Analysis Report (UFSAR) Chapters 9 and 11. Procedures and records reviewed during the inspection are listed in Section 2PS1 of the report Attachment.
Effluent Release Processing and Quality Control (QC) Activities The inspectors directly observed and evaluated chemistry staff proficiency in conducting weekly surveillance activities, including the particulate filter and charcoal cartridge change-out and noble gas/tritium collection from the fuel handling building basement exhaust (R-20) and tritium sampling from the condensate polisher liquid waste (R-37). In addition, the inspectors discussed the process for performing liquid and gaseous releases with chemistry personnel. Chemistry technician proficiency in processing and counting effluent samples and generating/closing release permits was evaluated.
QC activities associated with gamma spectroscopy and liquid scintillation counting were discussed with count room technicians and Chemistry supervision. The inspectors reviewed QC charts for January 2007 for High Purity Germanium (HPGe) detector Number (No.) 2 and the liquid scintillation counter, and reviewed licensee procedural guidance for count room QC activities. The inspectors reviewed the two most recent calibration records for HPGe detector Nos. 1 and 3 (select counting geometries) and for the liquid scintillation counter. In addition, results of the radiochemistry cross-check program analyses for the licensees onsite counting room were reviewed and discussed with cognizant licensee individuals.
Selected portions of procedures for effluent sampling, processing, and release were observed and evaluated for consistency with chemistry technician activities. Both gaseous and liquid release permits were reviewed against ODCM specifications for pre-release sampling and effluent monitor setpoints. The inspectors discussed performance of pre-release sampling and analysis and release permit generation with chemistry technicians. The inspectors reviewed the 2004 and 2005 Annual Radiological Effluent Release Reports to evaluate reported doses to the public and ODCM changes. The inspectors reviewed a selection of monthly, quarterly, and annual-to-date dose assessments from liquid and gaseous releases for calendar year 2006.
Dose calculations to members of the public were evaluated and discussed with cognizant licensee personnel.
Current licensee programs for monitoring, tracking, and documenting the results of both routine and abnormal liquid releases to the onsite and offsite surface and ground water environs were reviewed and discussed in detail. The inspectors reviewed selected 10 CFR 50.75(g) reports associated with abnormal liquid releases and corrective actions initiated. Licensee actions to evaluate ground water hydrology and to detect any potential onsite/offsite environmental impact of significant leakage/spills from onsite systems, structures, and components were reviewed and discussed. Recent groundwater monitoring initiatives and radionuclide concentration results for onsite groundwater monitoring wells were reviewed. Initial results of samples collected from the wells did not identify tritium concentrations above environmental detection limits.
Observed task evolutions, count room activities, and offsite dose results were evaluated against details and guidance documented in the following: 10 CFR Part 20 and Appendix I to 10 CFR Part 50; ODCM; RG 1.21; RG 1.109, Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50 Appendix I; RG 1.33, Quality Assurance Program Requirements; and TS Section 5.5.
Procedures and records reviewed during the inspection are listed in Section 2PS1 of the report
.
Problem Identification and Resolution A selection of Action Requests and self-assessments associated with effluent release activities were reviewed and assessed. The inspectors evaluated the licensees ability to identify, characterize, prioritize, and resolve selected issues in accordance with licensee procedure CAP-NGGC-0200, Corrective Action Program, Rev. 18.
Reviewed documents are listed in Section 2PS1 of the report Attachment.
The inspectors completed eleven of the specified line-item samples detailed in Inspection Procedure (IP) 71122.01.
b. Findings
No findings of significance were identified.
2PS3 Radiological Environmental Monitoring Program (REMP) and Radioactive Material Control Program
a. Inspection Scope
REMP Implementation The licensees Annual Radiological Environmental Operating Report for calendar year 2005 and REMP activities for 2005 were reviewed and discussed with cognizant licensee representatives. The inspectors discussed and evaluated the reported data for trends in radionuclide concentrations, anomalous/
missing data, and land-use census information. QC activities and data for selected sample types listed in the report were reviewed and evaluated. In addition, the inspectors discussed and reviewed air sample pump air flow calibration data with cognizant licensee representatives.
Equipment operational status and staff proficiency for implementing REMP activities were assessed through a review of records, observations of equipment material condition and operating characteristics, assessment of selected sample collection activities, and discussion of collection techniques for sample matrices not directly observed. Collection of weekly air particulate filters/charcoal cartridges, air flow rate determinations, water sampling, and thermoluminescent dosimeter placement were observed at selected sampling station locations.
During observations of air and water sample collection, the inspectors evaluated the proficiency of collection staff and assessed the adequacy and implementation of selected collection techniques. The inspectors also verified that the persons collecting environmental samples were qualified as required by licensee procedures.
REMP guidance, implementation, and results were reviewed against ODCM details and applicable procedures listed in Section 2PS3 of the report Attachment. Environmental laboratory activities including processing and analysis are performed at the Harris Environmental Monitoring Laboratory and were not reviewed during the Robinson plant inspection.
Meteorological Monitoring Program The inspectors toured the meteorological tower and its supporting instrumentation and observed the physical condition of the equipment. The inspectors compared system generated data with data from the control room instrumentation.
The data was also compared with the inspectors observations of wind direction and speed measured at the tower. The inspectors also assessed system reliability and data recovery.
Meteorological tower siting was evaluated based on near-field obstructions, ground cover, proximity to the plant, and distance from terrain that could affect the representativeness of the measurements.
Licensee procedures and activities related to meteorological monitoring were evaluated for consistency with TSs, ODCM, UFSAR Section 2.3, Meteorology, and ANS/ANSI 3.11-2005, "Determining Meteorological Information at Nuclear Facilities." Licensees meteorological monitoring related procedures, reports and records reviewed during the inspection are listed in the report Attachment.
Unrestricted Release of Materials from the Radiologically Controlled Area (RCA) Radiation Protection (RP) program activities associated with the unconditional release of potentially contaminated materials from the Radiological Controlled Area (RCA) egress point was evaluated. The evaluation included a review of calibration records associated with the Small Article Monitor (SAM) equipment located at the RCA exit portal. The inspectors observed source checking of SAM equipment. Source activity and radionuclides used for checks and equipment minimum detectable activities were discussed with an instrument technician.
Provisions for monitoring hard-to-detect nuclides were also discussed. Section 2OS3 describes additional checks on the instrumentation used to control the release of radioactive material.
The Inspectors verified that radiation detection sensitivities were consistent with NRC guidance in IE Circular 81-07, Control of Radioactively Contaminated Material, May 14, 1981, IE Information Notice 85-92, and the ODCM. Documents reviewed are listed in Section 2PS3 of the report Attachment.
Problem Identification and Resolution Audits, self-assessments and selected licensee corrective actions associated with REMP, meteorological monitoring activities and unrestricted release of materials from the RCA were reviewed and discussed with cognizant licensee representatives. The inspectors assessed the licensees ability to identify, characterize, prioritize, and resolve the identified issues. Corrective action program documents were reviewed and evaluated for effective corrective actions. These documents are identified in Section 2PS3 of the report Attachment.
The inspectors completed ten of the specified line-item samples detailed in IP 71122.03.
b. Findings
No findings of significance were identified.
OTHER ACTIVITIES
4OA1 Performance Indicator (PI) Verification
a. Inspection Scope
The inspectors verified the four PIs identified below. For each PI, the inspectors verified the accuracy of the PI data that had been previously reported to the NRC by comparing those data to the actual data, as described below. The inspectors also compared the basis in reporting each data element to the PI definitions and guidance contained in NEI 99-02, Regulatory Assessment Indicator Guideline, Rev. 4. In addition, the inspectors interviewed licensee personnel associated with collecting, evaluating, and distributing these data.
Barrier Integrity Cornerstone To evaluate the Reactor Coolant System (RCS) Specific Activity PI, the inspectors observed sampling and analysis of reactor coolant system samples, and compared the reported performance indicator data with records developed by the licensee while analyzing previous samples, for the period from the first quarter of 2006 through the fourth quarter of 2006.
To evaluate the RCS Leak Rate PI, the inspectors reviewed records of daily measures of RCS identified leakage, for the period from the first quarter of 2006 through the fourth quarter of 2006.
Occupational Radiation Safety Cornerstone To evaluate the Occupational Exposure Control Effectiveness PI, the inspectors reviewed data collected from June through December 2006. The inspectors reviewed the licensees procedure for reporting PI data to the NRC, Regulatory Nuclear Generation Group Corporate Procedure - 0009, NRC Performance Indicators, Rev. 5, as well as records relevant to this PI.
Specifically, the inspectors reviewed selected corrective action issues and individual RCA exit transactions with ED readings exceeding 100 millirem to assess reporting data for potential unplanned exposures and RCA exit transactions which resulted in dose rate alarm activation to evaluate entries where dose rates were higher than expected. Reviewed documents relative to this PI are listed in Section 4OA1 of the report Attachment.
Public Radiation Safety Cornerstone To evaluate the Radiological Effluent Technical Specification/Offsite Dose Calculation Manual Radiological Effluent Occurrences PI, the inspectors reviewed a listing of radiological effluent related corrective action program records generated from June through December 2006 and the most recent annual radioactive effluent release report to ensure that radiological effluent release occurrences were properly classified in accordance with NEI 99-02 guidance. In addition, licensee procedural guidance for classifying and reporting PI events was evaluated.
Reviewed documents are listed in Section 4OA1 of the report Attachment.
b. Findings
No findings of significance were identified.
4OA2 Identification and Resolution of Problems
.1 Routine Review of ARs
To aid in the identification of repetitive equipment failures or specific human performance issues for followup, the inspectors performed frequent screenings of items entered into the CAP. The review was accomplished by reviewing daily AR reports.
.2 Annual Sample Review
a. Inspection Scope
The inspectors selected AR 210311210311 Manual Reactor Trip Due to 100 percent Load Rejection for detailed review. The inspectors selected this AR because it relates specifically to the Initiating Events Cornerstone. The inspectors reviewed this report to verify:
- complete and accurate identification of the problem in a timely manner;
- evaluation and disposition of performance issues;
- evaluation and disposition of operability and reportability issues;
- consideration of extent of condition, generic implications, common cause, and previous occurrences;
- appropriate classification and prioritization of the problem;
- identification of root and contributing causes of the problem;
- identification of corrective actions which were appropriately focused to correct the problem; and
- completion of corrective actions in a timely manner.
The inspectors also reviewed this AR to verify compliance with the requirements of the CAP as delineated in Procedure CAP-NGGC-0200, Corrective Action Program, and 10 CFR 50, Appendix B. Documents reviewed are listed in the Attachment.
b. Observations and Findings
No findings of significance were identified.
4OA3 Event Follow-up
(Closed) LER 2006-001-00, Manual Reactor Trip Due to Failure of a Turbine Governor Valve Electro-Hydraulic Control Card. This Licensee Event Report (LER) reports the reactor trip that was discussed in section 4OA3.1 of inspection report 05000261/2006005. As described in that section, no findings of significance were identified through the inspectors review of the event.
This LER further reports that the root cause of the reactor trip was failure of a turbine governor valve electro-hydraulic control system card. Section 4OA2.2 of this report describes the inspectors review of the associated root-cause investigation report (AR 210311210311 and states that no findings of significance were identified. This LER presents no new information, and is therefore closed.
4OA5 Other Activities
a. Inspection Scope
Independent Spent Fuel Storage Installation (ISFSI) Radiological Controls The inspectors reviewed gamma-ray, neutron, and contamination surveys of the ISFSI facility. Inspectors also observed routine gamma-ray surveys and compared the results to previous surveys and TS limits. The inspectors evaluated implementation of radiological controls, including labeling and posting, and discussed controls with an HP Technician and HP supervisory staff.
Environmental monitoring for direct radiation from the ISFSI was reviewed, and inspectors observed placement of TLDs.
Radiological control activities for ISFSI areas were evaluated against 10 CFR Part 20, 10 CFR Part 72, and Amendment 8 to the Certificate of Compliance (CoC) No. 1004 details.
Documents reviewed are listed in Section 4OA5 of the report Attachment.
b. Findings
No findings of significance were identified.
4OA6 Meetings, Including Exit
On January 12, 2007, the inspectors discussed the results of the inspection described in section 2OS3 with Mr. T. Walt and other responsible staff. The inspectors noted that proprietary information was reviewed during the course of the inspection but would not be included in the documented report. During a followup telephone exit on January 18, the inspectors reviewed and discussed with G. Sanders, Licensing Engineer, the cross-cutting aspect associated with the Green NCV described in section 2OS3.
On April 4, 2007, the resident inspectors presented the inspection results to Mr. T. Walt and other members of his staff. The inspectors confirmed that, except as noted above, proprietary information was not provided or examined during the inspections.
ATTACHMENT:
SUPPLEMENTAL INFORMATION
KEY POINTS OF CONTACT
Licensee personnel
- C. Bach, Superintendent, Environmental and Chemistry
- C. Baucom, Licensing Supervisor
- D. Blakeney, Outage and Scheduling Manager
- B. Clark, Nuclear Assurance Manager
- B. Davis, Superintendent, Technical Services
- W. Farmer, Engineering Manager
- J. Huegel, Maintenance Manager
- E. Kapopoulos, Plant General Manager
- J. Lucas, Manager, Support Services - Nuclear
- G. Ludlum, Training Manager
- W. Noll, Director of Site Operations
- G. Sanders, Licensing Engineer
- L. Sanders, Continued Training Supervisor
- J. Stanley, Superintendent, Systems Engineering
- T. Tovar, Radiation Protection Superintendent
- T. Walt, Vice President
- S. Wheeler, Supervisor, Regulatory Support
- D. Winters, Superintendent, Operator Training
NRC personnel
- R. Musser, Chief, Reactor Projects Branch 4
LIST OF ITEMS OPENED, CLOSED, AND DISCUSSED
Opened and Closed
2007002-01 NCV Failure to Provide Adequate Respiratory Protection Equipment for Emergency Response (Section 2OS3)
Closed
2006-001-00 LER Manual Reactor Trip Due to Failure of a Turbine Governor Valve Electro-Hydraulic Control Card (Section 4OA3)
Previous Items
Closed
None
Discussed
None