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[[Issue date::January 24, 2010]] | [[Issue date::January 24, 2010]] | ||
Mr. Edward D. Halpin, President and Chief Executive Officer STP Nuclear Operating Company P.O. Box 289 Wadsworth, TX 77483 Subject: SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION - NRC INTEGRATED INSPECTION REPORT | Mr. Edward D. Halpin, President and Chief Executive Officer STP Nuclear Operating Company P.O. Box 289 Wadsworth, TX 77483 Subject: SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION | ||
- NRC INTEGRATED INSPECTION REPORT 05000 498/20 10 00 5 AND 05000499/20 1 000 5 | |||
==Dear Mr. Halpin:== | ==Dear Mr. Halpin:== | ||
On December 31, 2010, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at your South Texas Project Electric Generating Station, Units 1 and 2, facility. The enclosed integrated inspection report documents the inspection findings, which were discussed on January 6, 2011, with you and other members of your staff | On December 31, 2010, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at your South Texas Project Electric Generating Station, Units 1 and 2, facility. The enclosed integrated inspection report documents the inspection findings, which were discussed on January 6, 2011, with you and other members of your staff. | ||
The | The inspections examined activities conducted under your license as they relate to safety and compliance with the Commission's rules and regulations and with the conditions of your license. | ||
Sincerely,/RA/ Wayne Walker, Chief Project Branch A Division of Reactor Projects Dockets: 50-498 50-499 Licenses: NPF-76 NPF-80 | The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel. | ||
Based on the results of this inspection, one self-revealing and two NRC identified findings were evaluated under the significance determination process as having very low safety significance (Green). The NRC has determined that violations are associated with these findings. Additionally, two licens ee-identified violations, which were determined to be of very low safety significance, are listed in this report. However, because of the very low safety significance and because they were entered into your corrective action program, the NRC is treating these finding s as noncited violations, consistent with Section 2.3.2 of the NRC Enforcement Policy. | |||
If you contest the se violations or the significance of the noncited violations, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, D.C. | |||
20555-0001, with copies to the Regional Administrator, U.S. | |||
Nuclear Regulatory Commission, Region IV, 612 E. Lamar Blvd, Suite 400, Arlington, Texas, 76011 | |||
-4125; the Director, Office of Enforcement, U.S. Nuclear Regulatory Commission, Washington, D.C. 20555 | |||
-0001; and the NRC Resident Inspector at the facility. | |||
In addition, if you disagree with the crosscutting aspect assigned to 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 IV, and the NRC Resident Inspector at the facility | |||
. U N I T E D S T A T E S N U C L E A R R E G U L A T O R Y C O M M I S S I O N R E G I O N I V 6 12 EAST LAMAR BLVD | |||
, S U I T E 4 0 0 A R L I N G T O N , T E X A S 7 6 0 1 1-4125 STP Nuclear Operating Company In accordance with 10 CFR 2.390 of the NRC's | |||
"Rules of Practice," a copy of this letter, its enclosure, and your response, will be made available electronically for public inspection in the NRC Public Document Room or from the NRC | |||
's document system (ADAMS), accessible from the NRC Web site at http://www.nrc.gov/reading | |||
-rm/adams.html. To the extent possible, your response should not include any personal privacy or proprietary information so that it can be made available to the public without redaction. | |||
Sincerely,/RA/ Wayne Walker, Chief Project Branch A Division of Reactor Projects Dockets: 50 | |||
-498 50-499 Licenses: NPF | |||
-76 NPF-80 | |||
===Enclosure:=== | ===Enclosure:=== | ||
NRC Inspection Report | NRC Inspection Report 05000 498/20 1 0 00 5 and 05000 499/20 10 00 5 | ||
===w/Attachment:=== | ===w/Attachment:=== | ||
Line 37: | Line 59: | ||
===Enclosure:=== | ===Enclosure:=== | ||
Kevin Richards, Senior Vice President and Assistant to CEO STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 David W. Rencurrel Senior Vice President Units 1 and 2 STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 Louis Peter, Plant General Manager STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 STP Nuclear Operating Company | Kevin Richards, Senior Vice President and Assistant to CEO STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 David W. Rencurrel Senior Vice President Units 1 and 2 STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 Louis Peter, Plant General Manager STP Nuclear Operating Company South Texas Project | ||
P.O. Box 289 Wadsworth, TX 77483 | |||
STP Nuclear Operating Company Tim Powell, Vice President, Engineering STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 A. W. Harrison, Manager, Licensing STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 Charles T. Bowman, General Manager, Oversight STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 Marilyn Kistler Senior Staff Specialist, Licensing STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 Cheryl Mele City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704 J. J. Nesrsta/R. K. Temple/ | |||
Ed Alercon/Kevin Pollo | |||
City Public Service P.O. Box 1771 San Antonio, TX 78296 A. H. Gutterman, Esq. Morgan, Lewis & Bockius LLP 1111 Pennsylvania Avenue, NW Washington, DC 20004 | |||
STP Nuclear Operating Company Richard A. Ratliff, P.E., L.M.P. | |||
Radiation Safety Licensing Branch Manager Division for Regulatory Services Texas Department of State Health Mail Code 2385 P.O. Box 149347 Austin, TX 78714 | |||
-9347 Brian Almon Public Utility Commission of Texas P.O. Box 13326 Austin, TX 78711 | |||
-3326 Environmental and Natural Resources Policy Director, Office of the Governor P.O. Box 1242 8 Austin, TX 78711 | |||
-3189 Mr. Nate McDonald Judge , Matagorda County Matagorda County Courthouse | |||
1700 Seventh Street Bay City, TX 77414 Anthony P. Jones, Chief Boiler Inspector Texas Department of Licensing and Regulation Boiler Division E.O. Thompson State Office Building P.O. Box 12157 Austin, TX 78711 Susan M. Jablonski Office of Permitting, Remediation and Registration Texas Commission on Environmental Quality MC-122 P.O. Box 13087 Austin, TX 78711 | |||
-3087 Ted Enos 4200 South Hulen, Suite 422 | |||
Fort Worth, TX 76109 Kevin Howell/Catherine Callaway/Jim von Suskil NRG Energy, Inc. | |||
1301 McKinney, Suite 2300 Houston, TX 77010 | |||
STP Nuclear Operating Company Peter G. Nemeth Crain, Caton, & James, P.C. | |||
P.O. Box 289 Mail Code: N5005 Wadsworth, TX 77483 Chief, Technological Hazards Branch FEMA Region VI 800 North Loop 288 Federal Regional Center Denton, TX 7620 1-3698 Chairperson Radiological Assistance Committee FEMA Region VI 800 North Loop 288 Federal Regional Center Denton, TX 76201 | |||
-3698 C. Kierksey City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704 | |||
STP Nuclear Operating Company Electronic distribution by RIV: | |||
Regional Administrator (Elmo.Collins@nrc.gov) | |||
Deputy Regional Administrator (Art.Howell@nrc.gov) DRP Director (Kriss.Kennedy@nrc.gov) | |||
DRP Deputy Director (Troy.Pruett@nrc.gov) DRS Director (Anton.Vegel@nrc.gov) Senior Resident Inspector (John.Dixon@nrc.gov | |||
) Resident Inspector (Binesh.Tharakan@nrc.gov) | |||
Branch Chief, DRP/A (Wayne.Walker@nrc.gov) Senior Project Engineer, DRP/A (David.Proulx@nrc.gov | |||
) STP Administrative Assistant (Lynn.Wright@nrc.gov) | |||
Project Engineer, DRP/A (Laura.Micewski@nrc.gov) | |||
Public Affairs Officer (Victor.Dricks@nrc.gov | |||
) Public Affairs Officer (Lara.Uselding@nrc.gov | |||
) Project Manager (Mohan.Thadani@nrc.gov) | |||
Branch Chief, DRS/TSB (Michael.Hay@nrc.gov) | |||
RITS Coordinator (Marisa.Herrera@nrc.gov | |||
) Regional Counsel (Karla.Fuller@nrc.gov) | |||
Congressional Affairs Officer (Jenny.Weil@nrc.gov | |||
) Region IV RSLO (Bill.Maier@nrc.gov | |||
) NSIR/DPR/EP (Eric.Schrader@nrc.gov | |||
) OEMail Resource ROPreports OEDO RIV Coordinator (James.Tapp@nrc.gov) DRS/TSB STA (Dale.Powers@nrc.gov | |||
) R:\REACTORS\STP\20 1 0\STP20 10 0 0 5-RP-JLD.doc x SUNSI Rev Compl. | |||
Yes No ADAMS Yes No Reviewer Initials WW Publicly Avail Yes No Sensitive Yes No Sens. Type Initials WW RI:DRP/A SRI:DRP/A SPE:DRP/PBA C:DRS/PSB2 C:DRS/OB BKTharakan JLDixon DLProulx GEWerner MSHaire /RA/T-WWalker /RA/T-WWalker /RA/ /RA/ /RA/GApger for 1/10/11 1/10/11 1/11/11 1/18/11 1/18/11 C:DRS/PSB1 C:DRS/EB1 C:DRS/EB2 C:DRS/TSB C:DRP/PBA MPShannon TRFarnholtz NFO'Keefe MCHay WCWalker /RA/ /RA/ /RA/ /RA/ /RA/ 1/18/11 1/14/11 1/18/11 1/18/11 1/21/11 OFFICIAL RECORD COPY T=Telephone E=E | |||
-mail F=Fax Enclosure U.S. NUCLEAR REGULATORY COMMISSION REGION IV Docket: 05000498, 05000499 License: NPF-76, NPF-80 Report: 05000 498/20 1 00 0 5 and 05000499/20 1 000 5 Licensee: STP Nuclear Operating Company Facility: South Texas Project Electric Generating Station, Units 1 and 2 Location: FM521 - 8 miles west of Wadsworth Wadsworth, Texas 77483 Dates: October 1 through December 31, 20 1 0 Inspectors: | |||
J. Dixon, Senior Resident Inspector P. Elkmann, Senior Emergency Preparedness Inspector A. Fairbanks, Reactor Inspector G. Guerra, CHP, Emergency Preparedness Inspector S. Hedger, Operations Engineer J. Kramer, Senior Resident Inspector, Comanche Peak B. Tharakan, CHP, Resident Inspector Accompanied by: C. Denis se n, Nuclear Safety Professional Development Program L. Micewski, Project Engineer Approved By: | |||
Wayne Walker, Chief, Project Branch A Division of Reactor Projects Enclosure | |||
=SUMMARY OF FINDINGS= | =SUMMARY OF FINDINGS= | ||
IR | IR 05000 498/20 1 00 0 5 , 05000 499/20 1 00 0 5; 10/01/2010 | ||
- 12/31/2010 | |||
; South Texas Project Electric Generating Station, Units 1 and 2 | |||
, Integrated Resident and Regional Report; | |||
Equipment Alignment | |||
; Fire Protection | |||
; Surveillance Testing. The report covered a 3 | |||
-month period of inspection by resident inspectors and announced baseline inspections by regional based inspectors. Three Green noncited violations of very low safety significance were identified. The significance of most findings is indicated by their color (Green, White, Yellow, or Red) using Inspection Manual Chapter 0609, "Significance Determination Process." The crosscutting aspect is determined using Inspection Manual Chapter 0310, "Components within the Cross Cutting Areas." | |||
Findings for which the significance determination process 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 4, dated December 2006. | |||
===A. NRC-Identified Findings and Self-Revealing Findings=== | ===A. NRC-Identified Findings and Self-Revealing Findings=== | ||
Line 46: | Line 130: | ||
===Cornerstone: Mitigating Systems=== | ===Cornerstone: Mitigating Systems=== | ||
: '''Green.''' | : '''Green.''' | ||
On October 21, 2010, the inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criteria III, "Design Control," for the failure to properly ensure that design standards were correctly translated into drawings, procedures, and instructions. Specifically, the failure to ensure that the safety injection flush line valves were tracked in accordance with the locked valve program. The inspectors questioned the licensee about the lack of a lock on these isolation | On October 21, 2010, the inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criteria III, "Design Control," for the failure to properly ensure that design standards were correctly translated into drawings | ||
, procedures | |||
, and instructions. Specifically, the failure to ensure that the safety injection flush line valves were tracked in accordance with the locked valve program. The inspectors questioned the licensee about the lack of a lock on these isolation valv es , because these valves are a single failure away from reducing the amount of flow that would be available for core cooling in the event of a safety injection. | |||
The licensee performed an engineering evaluation as part of Condition Report 10-22911 and concluded that the original 1993 evaluation was not adequately performed and that the valves are currently operable bu t nonconforming since they were not in the locked valve program. The licensee is updating their locked valve program to include the safety injection flush line valves as locked valves. | |||
The finding was more than minor because it was associated with the Mitigating Systems Cornerstone attributes of Design Control and Configuration Control and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. If one of the valves was out of position | |||
, it could have resulted in approximately a n 11 percent reduction in safety injection pump flow. | |||
The inspectors performed the significance determination using NRC Inspection Manual 0609, Attachment 0609.04, "Phase 1 - Initial Screening and Characterization of Findings," dated January 10, 2008, because it affected the Mitigating Systems Cornerstone while the plant was at power. The finding was determined to be of very low safety significance because it was not a design or qualification deficiency | |||
; it did not result in the loss of a system safety function | |||
; it did not represent the loss of a single train for greater than technical specification allowed outage time | |||
; it did not represent a loss of one or more nontechnical specification risk-significant equipment for greater than 24 hours | |||
; and it did not screen as potentially risk significant due to seismic, flooding, or severe weather. This finding did not have crosscutting aspects because the design modification which removed the valves from the locked valve program was performed in 1993 (Section 1R04). | |||
: '''Green.''' | : '''Green.''' | ||
The inspectors identified a noncited violation of license condition 2.E, Fire Protection Program, for the failure to install the required number of smoke detectors (four) in the auxiliary shutdown room per the National Fire Protection Association Standard 72E-1978 on automatic fire detection. On October 5, 2010, during a quarterly fire inspection walkdown of the auxiliary shutdown room, the inspectors identified that the room only had three smoke detectors. The inspectors questioned whether three smoke detectors were sufficient for the size of the room (950 square feet). After further evaluation, the licensee concluded that an additional smoke detector needed to be installed. The licensee's corrective action is to install another smoke detector in each unit's auxiliary shutdown room. The finding was more than minor because it was associated with the Mitigating Systems Cornerstone attribute of Design Control and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences because a fire may not be detected in time to prevent damage to the auxiliary shutdown panel rendering it unavailable or unreliable. The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609, Appendix F, dated February 28, 2005, because the finding affected fire protection defense-in-depth strategies, as described in NRC Inspection Manual Chapter 0609, Attachment 0609.04, Table 3b, "Phase 1 - Initial Screening and Characterization of Findings," dated January 10, 2008. The finding was assigned to the fixed fire protection systems category with a degradation rating of moderate because the room was missing 25 percent of the required smoke detection equipment. The finding was determined to be of very low safety significance because the delta-core damage frequency of 2.34E-7 was less than the 1.0E-5 value in Table 1.4.3, Phase 1 Quantitative Screening Criteria, of NRC Inspection Manual Chapter 0609, Appendix F. This finding did not have crosscutting aspects because the condition existed since initial plant start up (Section 1R05). | The inspectors identified a noncited violation of license condition 2.E, Fire Protection Program, for the failure to install the required number of smoke detectors (four) in the auxiliary shutdown room per the National Fire Protection Association Standard 72E-1978 on automatic fire detection. On October 5, 2010, during a quarterly fire inspection walkdown of the auxiliary shutdown room, the inspectors identified that the room only had three smoke detectors. The inspectors questioned whether three smoke detectors were sufficient for the size of the room (950 square feet). After further evaluation, the licensee concluded that an additional smoke detector needed to be installed. The licensee's corrective action is to install another smoke detector in each unit's auxiliary shutdown room. | ||
The finding was more than minor because it was associated with the Mitigating Systems Cornerstone attribute of Design Control and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences because a fire may not be detected in time to prevent damage to the auxiliary shutdown panel rendering it unavailable or unreliable. The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609, Appendix F, dated February 28, 2005, because the finding affected fire protection defense-in-depth strategies, as described in NRC Inspection Manual Chapter 0609, Attachment 0609.04, Table 3b, "Phase 1 - Initial Screening and Characterization of Findings," dated January 10, 2008. The finding was assigned to the fixed fire protection systems category with a degradation rating of moderate because the room was missing 25 percent of the required smoke detection equipment. The finding was determined to be of very low safety significance because the delta-core damage frequency of 2.34E | |||
-7 was less than the 1.0E | |||
-5 value in Table 1.4.3, Phase 1 Quantitative Screening Criteria, of NRC Inspection Manual Chapter 0609 , Appendix F. This finding did not have crosscutting aspects because the condition existed since initial plant start up (Section 1R05). | |||
: '''Green.''' | : '''Green.''' | ||
On October 17, 2010, the inspectors reviewed a self-revealing noncited violation of 10 CFR Part 50, Appendix B, Criteria V, "Instructions, Procedures, and Drawings," for the failure to follow Procedure 0PSP03-RH-0003, "Residual Heat Removal Pump 1C(2C) Inservice Test," Revision 16. The procedure directs the operator to establish the proper lineup for the test in step 5.2.2 and is followed by a table with various valves and breakers to be aligned by one individual and then verified by a second individual. This table lists mini flow isolation valve MOV-0067C as being required to be open. The first operator failed to perform an adequate self-check to ensure that he was following the procedure and the second operator also failed to perform an adequate self-check to ensure that the valve was in the correct position prior to starting the pump. Consequently, when the first operator started the pump, it tripped on low flow approximately | On October 17, 2010, the inspectors reviewed a self-revealing noncited violation of 10 CFR Part 50, Appendix B, Criteria V, "Instructions, Procedures, and Drawings," for the failure to follow Procedure 0PSP03 | ||
-RH-0003, "Residual Heat Removal Pump 1C(2C) Inservice Test," Revision 16. | |||
The procedure directs the operator to establish the proper lineup for the test in step 5.2.2 and is followed by a table with various valves and breakers to be aligned by one individual and then verified by a second individual. This table lists mini flow isolation valve MOV-0067C as being required to be open. The first operator failed to perform an adequate self-check to ensure that he was following the procedure and the second operator also failed to perform an adequate self-check to ensure that the valve was in the correct position prior to starting the pump. Consequently | |||
, when the first operator started the pump | |||
, it tripped on low flow approximately seconds later. The shift manager then refocused the control room operators | |||
, ensured that everyone was engaged | |||
, re-performed the procedure , and successfully completed the surveillance test. Corrective actions that the licensee implemented includ ed remediating the individuals involved on the use of human performance tools and revising the surveillance test procedures to list the mini flow isolation valves as a separate stand alone step. | |||
The finding was more than minor because it affected the Mitigating Systems Cornerstone attributes of Procedure Quality and Human Performance and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. | |||
This deficiency directly challenged the residual heat removal system by relying on the low flow trip to secure the pump before pump damage occur r ed. The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609, Attachment 0609.04, "Phase 1 | |||
- Initial Screening and Characterization of Findings," dated January 10, 2008, because it affected the Mitigating Systems Cornerstone while the plant was at power. The finding was determined to be of very low safety significance because it was not a design or qualification deficiency | |||
; it did not result in the loss of a system safety function; it did not represent the loss of a single train for greater than technical specification allowed outage time | |||
; it did not represent a loss of one or more nontechnical specification risk-significant equipment for greater than 24 hours | |||
; and it did not screen as potentially risk significant due to seismic, flooding, or severe weather. In addition, this finding had human performance crosscutting aspects associated with work practices in that the licensee did not communicate human error prevention techniques, such as self checking, commensurate with the risk [H.4(a)](Section 1R22). | |||
===B. Licensee-Identified Violations=== | ===B. Licensee-Identified Violations=== | ||
Violations of very low safety significance, which were identified by the licensee, have been reviewed by the inspectors. Corrective actions taken or planned by the licensee have been entered into the licensee's corrective action program. These violations and corrective action tracking numbers (condition report numbers) are listed in Section 4OA7. | Violations of very low safety significance, which were identified by the licensee, have been reviewed by the inspectors. Corrective actions taken or planned by the licensee have been entered into the licensee's corrective action program. These violations and corrective action tracking numbers (condition report numbers) are listed in Section 4OA7. | ||
=REPORT DETAILS= | =REPORT DETAILS= | ||
Summary of Plant Status | |||
===Summary of Plant Status=== | |||
Unit 1 began the inspection period at 100 percent rated thermal power and essentially remained there for the remainder of the inspection period. | |||
Unit 2 began the inspection period at 100 percent rated thermal power and remained there until November 4, 2010, when the unit automatically tripped offline due to an electrical fault in the startup steam generator feedwater pump 24 supply breaker that resulted in the reactor protection system sensing a reactor coolant pump undervoltage condition. | |||
Following forced Outage 2F1001 | |||
, the unit was restarted and went critical on November 25, 2010 | |||
, achieved 100 percent rated thermal power on November 27, 2010, and essentially remained there for the remainder of the inspection period. | |||
==REACTOR SAFETY== | ==REACTOR SAFETY== | ||
Line 63: | Line 189: | ||
==1R01 Adverse Weather Protection== | ==1R01 Adverse Weather Protection== | ||
{{IP sample|IP=IP 71111.01}} | {{IP sample|IP=IP 71111.01}} | ||
Readiness for Seasonal Extreme Weather Conditions a. The inspectors performed a review of the adverse weather procedures for seasonal extremes (e.g., extreme high temperatures, extreme low temperatures, or hurricane season preparations). The inspectors verified that weather-related equipment deficiencies identified during the previous year were corrected prior to the onset of seasonal extremes; and evaluated the implementation of the adverse weather preparation procedures and compensatory measures for the affected conditions before the onset of, and during, the adverse weather conditions. Inspection Scope During the inspection, the inspectors focused on plant-specific design features and the procedures used by plant personnel to mitigate or respond to adverse weather conditions. Additionally, the inspectors reviewed the UFSAR and performance requirements for systems selected for inspection, and verified that operator actions were appropriate as specified by plant-specific procedures. Specific documents reviewed during this inspection are listed in the attachment. The inspectors also reviewed corrective action program items to verify that plant personnel were identifying adverse weather issues at an appropriate threshold and entering them into their corrective action program in accordance with station corrective action procedures. The inspectors' reviews focused specifically on the following plant systems: | Readiness for Seasonal Extreme Weather Conditions a. The inspectors performed a review of the adverse weather procedures for seasonal extremes (e.g., extreme high temperatures, extreme low temperatures, or hurricane season preparations). The inspectors verified that weather | ||
-related equipment deficiencies identified during the previous year were corrected prior to the onset of seasonal extremes; and evaluated the implementation of the adverse weather preparation procedures and compensatory measures for the affected conditions before the onset of, and during, the adverse weather conditions | |||
. Inspection Scope During the inspection, the inspectors focused on plant-specific design features and the procedures used by plant personnel to mitigate or respond to adverse weather conditions. Additionally, the inspectors reviewed the UFSAR and performance requirements for systems selected for inspection, and verified that operator actions were appropriate as specified by plant-specific procedures. Specific documents reviewed during this inspection are listed in the attachment. The inspectors also reviewed corrective action program items to verify that plant personnel were identifying adverse weather issues at an appropriate threshold and entering them into their corrective action program in accordance with station corrective action procedures. | |||
The inspectors' reviews focused specifically on the following plant systems: | |||
November 9, 2010, Units 1 and 2, essential cooling water, auxiliary feedwater, and standby diesel generator systems These activities constitute completion of one readiness for seasonal adverse weather sample as defined in Inspection Procedure 71111.01-05. b. No findings were identified. | |||
Findings | |||
{{a|1R04}} | {{a|1R04}} | ||
==1R04 Equipment Alignments== | ==1R04 Equipment Alignments== | ||
{{IP sample|IP=IP 71111.04}} | {{IP sample|IP=IP 71111.04}} | ||
===.1 Partial Walkdown=== | ===.1 Partial Walkdown=== | ||
a. The inspectors performed partial system walkdowns of the following risk-significant systems: Inspection Scope | |||
a. The inspectors performed partial system walkdowns of the following risk | |||
-significant systems: Inspection Scope October 21, 2010, Unit 2, safety injection system train A October 26, 2010, Unit 2, essential chilled water system train C December 20, 2010, Unit 1, auxiliary feedwater system train B The inspectors selected these systems based on their risk significance relative to the reactor safety cornerstones at the time they were inspected. The inspectors attempted to identify any discrepancies that could affect the function of the system, and, therefore, potentially increase risk. The inspectors reviewed applicable operating procedures, system diagrams, UFSAR, technical specification requirements, administrative technical specification s, outstanding work orders, condition reports, and the impact of ongoing work activities on redundant trains of equipment in order to identify conditions that could have rendered the systems incapable of performing their intended functions. The inspectors also inspected accessible portions of the systems to verify system components and support equipment were aligned correctly and operable. The inspectors examined the material condition of the components and observed operating parameters of equipment to verify that there were no obvious deficiencies. The inspectors also verified that the licensee had properly identified and resolved equipment alignment problems that could cause initiating events or impact the capability of mitigating systems or barriers and entered them into the corrective action program with the appropriate significance characterization. Specific documents reviewed during this inspection are listed in the attachment. | |||
These activities constitute completion of three partial system walkdown sample s as defined in Inspection Procedure 71111.04-05. b. | |||
=====Introduction.===== | =====Introduction.===== | ||
The inspectors identified a Green noncited violation of 10 CFR Part 50, Appendix B, Criteria III, "Design Control," for the failure to properly ensure that design standards were correctly translated into drawings, procedures, and instructions. Specifically, the failure to ensure that the safety injection flush line valves were tracked in accordance with the locked valve program. Findings | The inspectors identified a Green noncited violation of 10 CFR Part 50, Appendix B, Criteria III, "Design Control," for the failure to properly ensure that design standards were correctly translated into drawings | ||
, procedures | |||
, and instructions. Specifically | |||
, the failure to ensure that the safety injection flush line valves were tracked in accordance with the locked valve program. | |||
Findings | |||
=====Description.===== | =====Description.===== | ||
On October 21, 2010, during a safety injection system walkdown, the inspectors identified that the safety injection flush lines, 2-inch branch lines that tap off the main safety injection piping at the discharge of the safety injection pumps, had isolation valves that were not locked in place. The inspectors questioned the licensee about the lack of a lock on these isolation valves because these valves are a single failure away from reducing the amount of flow that would be available for core cooling in the event of a safety injection. The licensee determined that, in | On October 21, 2010, during a safety injection system walkdown, the inspectors identified that the safety injection flush lines , 2-inch branch lines that tap off the main safety injection piping at the discharge of the safety injection pumps, had isolation valves that were not locked in place. The inspectors questioned the licensee about the lack of a lock on these isolation valves because these valves are a single failure away from reducing the amount of flow that would be available for core cooling in the event of a safety injection. The licensee determined that | ||
, in 1 993 , the engineering department performed an unreviewed safety question evaluation to remove valves in various systems from the locked valve program. The purpose of the review was to reduce the number of valves in the program, thereby reducing the burden on the operations department. The engineering department focused on the two key attributes of containment integrity and single failure criteria. | |||
As a result of this review | |||
, the engineering department recommended that several dozen valves be removed from the locked valve program because their removal would not impact the containment integrity or single failure criteria requirements. However, as part of a question and response to the plant license (UFSAR Question and Response 440.44N), it states "-the vent and drain lines which may contain recirculation fluid are provided with a locked closed valve-" This question and response identified that the 2-inch safety injection flush line valves were to be locked closed valves. The 1993 evaluation to reduce the number of locked closed valves only looked at the safety injection flush line valves from the requirements of containment integrity as required by general design criteria 57, but did not evaluate the single failure criteria | |||
. The original 1993 evaluation lacked adequate justification and documentation for including the safety injection flush line valve s. The licensee performed another engineering evaluation as part of Condition Report 10-22911 and concluded that the original 1993 evaluation was not adequately performed for the safety injection flush line valve s to be removed from the locked valve program and that the valves are currently operable but nonconforming | |||
, since they are not in the locked valve program. The licensee is updating their locked valve program to include the safety injection flush line valves as locked valves. | |||
=====Analysis.===== | =====Analysis.===== | ||
The failure to perform an adequate design review to address the design requirement for the safety injection flush line valves to remain in the locked valve program was a performance deficiency. The finding was more than minor because it was associated with the Mitigating Systems Cornerstone attributes of Design Control and Configuration Control and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. If one of the valves was out of position, it could have resulted in approximately | The failure to perform an adequate design review to address the design requirement for the safety injection flush line valves to remain in the locked valve program was a performance deficiency. The finding was more than minor because it was associated with the Mitigating Systems Cornerstone attributes of Design Control and Configuration Control and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. If one of the valves was out of position | ||
, it could have resulted in approximately a n 11 percent reduction in safety injection pump flow. The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609, Attachment 0609.04, "Phase 1 | |||
- Initial Screening and Characterization of Findings," dated January 10, 2008, because it affected the Mitigating Systems Cornerstone while the plant was at power. The finding was determined to be of very low safety significance (Green) because it was not a design or qualification deficiency | |||
; it did not result in the loss of a system safety function | |||
; it did not represent the loss of a single train for greater than technical specification allowed outage time | |||
; it did not represent a loss of one or more nontechnical specification risk | |||
-significant equipment for greater than 24 hours; and it did not screen as potentially risk significant due to seismic, flooding, or severe weather. This finding did not have crosscutting aspects because the design modification which removed the valves from the locked valve program was performed in 1993. | |||
=====Enforcement.===== | =====Enforcement.===== | ||
Title 10 CFR Part 50, Appendix B, Criteria III, "Design Control," requires, in part, that measures shall be established to assure that applicable regulatory requirements and design basis are correctly translated into specifications, drawings, procedures, and instructions. Contrary to this, from 1993 until December 2010, the licensee did not have an adequate evaluation to assure that the design basis was correctly translated into specifications, drawings, procedures, and instructions for the safety injection flush line valves to be included and controlled by the locked valve program to ensure operability. The 1993 unreviewed safety question evaluation did not adequately address the design basis for the safety injection flush line valves and incorrectly removed the valves from the locked valve program. The licensee's immediate corrective actions included | Title 10 CFR Part 50, Appendix B, Criteria III, "Design Control," requires, in part, that measures shall be established to assure that applicable regulatory requirements and design basis are correctly translated into specifications, drawings, procedures, and instructions. Contrary to this, from 1993 until December 2010 | ||
, the licensee did not have an adequate evaluation to assure that the design basis was correctly translated into specifications, drawings, procedures, and instructions for the safety injection flush line valves to be included and controlled by the locked valve program to ensure operability. The 1993 unreviewed safety question evaluation did not adequately address the design basis for the safety injection flush line valves and incorrectly removed the valves from the locked valve program. The licensee's immediate corrective actions included verif y i ng the valves were in the correct position and also performing an extent of condition review. They found no other valves that should be included in the locked valve program. Since this violation was of very low safety significance and was documented in the licensee's corrective action program as Condition Report 10-22911, it is being treated as a noncited violation consistent with Section 2.3.2.a of the NRC Enforcement Policy: NCV 05000498/2010005 | |||
-01 and 05000499/2010005 | |||
-01, "Inadequate Design Review Removes Safety Injection Flush Line Valves from Locked Valve Program." | |||
===.2 Complete Walkdown=== | ===.2 Complete Walkdown=== | ||
a. On November 18, 2010, the inspectors performed a complete system alignment inspection of the Unit 1 train A standby diesel generator to verify the functional capability of the system. The inspectors selected this system because it was considered both safety significant and | |||
a. On November 18, 2010, the inspectors performed a complete system alignment inspection of the Unit 1 train A standby diesel generator to verify the functional capability of the system. The inspectors selected this system because it was considered both safety significant and ri sk significant in the licensee's probabilistic risk assessment. The inspectors inspected the system to review mechanical and electrical equipment lineups, electrical power availability, system pressure and temperature indications, as appropriate, component labeling, component lubrication, component and equipment cooling, hangers and supports, operability of support systems, and to ensure that ancillary equipment or debris did not interfere with equipment operation. The inspectors reviewed a sample of past and outstanding work orders to determine whether any deficiencies significantly affected the system function. In addition, the inspectors reviewed the corrective action program database to ensure that system equipment-alignment problems were being identified and appropriately resolved. Specific documents reviewed during this inspection are listed in the attachment. | |||
Inspection Scope These activities constitute completion of one complete system walkdown sample as defined in Inspection Procedure 71111.04-05. b. No findings were identified. | |||
Findings | |||
{{a|R05}} | {{a|R05}} | ||
==R05 Fire Protection== | ==R05 Fire Protection== | ||
{{IP sample|IP=IP 71111.05}} | {{IP sample|IP=IP 71111.05}} | ||
Quarterly Fire Inspection Tours a. The inspectors conducted fire protection walkdowns that were focused on availability, accessibility, and the condition of firefighting equipment in the following risk-significant plant areas: Inspection Scope | Quarterly Fire Inspection Tours a. The inspectors conducted fire protection walkdowns that were focused on availability, accessibility, and the condition of firefighting equipment in the following risk | ||
-significant plant areas: | |||
Inspection Scope October 5, 2010, Unit 1, auxiliary shutdown panel room, Fire Zone Z071 October 5, 2010, Unit 2, auxiliary shutdown panel room, Fire Zone Z071 October 27, 2010, Unit 2, control room heating, ventilation, and air conditioning equipment room train A, Fire Z one Z005 October 27, 2010, Unit 2, control room heating, ventilation, and air conditioning equipment room train B, Fire Z one Z039 October 27, 2010, Unit 2, control room heating, ventilation, and air conditioning equipment room train C, Fire Z one Z049 The inspectors reviewed areas to assess if licensee personnel had implemented a fire protection program that adequately controlled combustibles and ignition sources within the plant; effectively maintained fire detection and suppression capability; maintained passive fire protection features in good material condition; and had implemented adequate compensatory measures for out | |||
-of-service, degraded or inoperable fire protection equipment, systems, or features, in accordance with the licensee's fire plan. The inspectors selected fire areas based on their overall contribution to internal fire risk as documented in the plant's Individual Plant Examination of External Events with later additional insights, their potential to affect equipment that could initiate or mitigate a plant transient, or their impact on the plant's ability to respond to a security event. Using the documents listed in the attachment, the inspectors verified that fire hoses and extinguishers were in their designated locations and available for immediate use; that fire detectors and sprinklers were unobstructed | |||
; that transient material loading was within the analyzed limits; and fire doors, dampers, and penetration seals appeared to be in satisfactory condition. The inspectors also verified that minor issues identified during the inspection were entered into the licensee's corrective action program | |||
. Specific documents reviewed during this inspection are listed in the attachment. | |||
These activities constitute completion of five quarterly fire protection inspection sample s as defined in Inspection Procedure 71111.05-05. b. Introduction | |||
The inspectors identified a Green noncited violation of license condition 2.E, Fire Protection Program, for the failure to install the required number of Findings smoke detectors (four) in the auxiliary shutdown room per the National Fire Protection Association standard on automatic fire detection, NFPA 72E-1978. | . The inspectors identified a Green noncited violation of license condition 2.E, Fire Protection Program, for the failure to install the required number of Findings smoke detectors (four) in the auxiliary shutdown room per the National Fire Protection Association standard on automatic fire detection, NFPA 72E-1978. Description | ||
. On October 5, 2010, during a quarterly fire inspection walkdown of the auxiliary shutdown room, the inspector s identified that the room, approximately 950 square feet in size, only had three smoke detectors. The inspector s notified the licensee that the number of detectors may not meet the requirements of the National Fire Protection Association standard on automatic fire detectors, NFPA 72E-1978, which the licensee is committed to following in their fire hazards analysis. | |||
The inspector s requested the licensee further evaluate whether three smoke detectors met the standard. The licensee performed a calculation using NFPA 72E | |||
-1978 guidance and determined that the number of smoke detectors required to be installed in the auxiliary shutdown room was more than three and thus needed a fourth smoke detector. The licensee acknowledged this condition had existed in both Unit 1 and Unit 2 auxiliary shutdown rooms since initial construction of the buildings and installation of the smoke detectors. The licensee initiated a condition report to install a fourth detector in each unit's auxiliary shutdown room. | |||
=====Analysis.===== | =====Analysis.===== | ||
The failure to install four smoke detectors as required by the standard was a performance deficiency. The finding was more than minor because it was associated with the Mitigating Systems cornerstone attribute of Design Control and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences because a fire may not be detected in time to prevent damage to the auxiliary shutdown panel rendering it unavailable or unreliable. The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609, Appendix F, dated February 28, 2005, because the finding affected fire protection defense-in-depth strategies, as described in NRC Inspection Manual Chapter 0609, Attachment 0609.04, Table 3b, "Phase 1 - Initial Screening and Characterization of Findings," dated January 10, 2008. The finding was assigned a finding category of fixed fire protection systems and a degradation rating of moderate because the room was missing 25 percent of the required smoke detection equipment. The finding was assigned a duration factor of 1.0 because the condition had existed for greater than 30 days and the fire frequency for the area is 2.34E-7. The finding was determined to be of very low safety significance (Green) because the delta-core damage frequency of 2.34E-7 was less than the 1.0E-5 value in Table 1.4.3, Phase 1 Quantitative Screening Criteria, of NRC Inspection Manual Chapter 0609, Appendix F. The finding did not have crosscutting aspects because the condition existed since initial plant start up of Units 1 and 2 in 1988 and 1989, respectively. | The failure to install four smoke detectors as required by the standard was a performance deficiency. The finding was more than minor because it was associated with the Mitigating Systems cornerstone attribute of Design Control and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences because a fire may not be detected in time to prevent damage to the auxiliary shutdown panel rendering it unavailable or unreliable. | ||
The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609, Appendix F, dated February 28, 2005, because the finding affected fire protection defense | |||
-in-depth strategies, as described in NRC Inspection Manual Chapter 0609, Attachment 0609.04, Table 3b, "Phase 1 | |||
- Initial Screening and Characterization of Findings," dated January 10, 2008. The finding was assigned a finding category of fixed fire protection systems and a degradation rating of moderate because the room was missing 25 percent of the required smoke detection equipment. The finding was assigned a duration factor of 1.0 because the condition had existed for greater than 30 days and the fire frequency for the area is 2.34E | |||
-7. The finding was determined to be of very low safety significance (Green) because the delta | |||
-core damage frequency of 2.34E | |||
-7 was less than the 1.0E | |||
-5 value in Table 1.4.3, Phase 1 Quantitative Screening Criteria, of NRC Inspection Manual Chapter 0609 , Appendix F. | |||
The finding did not have crosscutting aspects because the condition existed since initial plant start up of Units 1 and 2 in 1988 and 1989, respectively. | |||
Enforcement | |||
South Texas Project Nuclear Operating Company, Units 1 and 2 license condition 2.E requires, in part, that the licensee implement and maintain in effect all provisions of the Fire Protection Program as described in the Fire Hazards Analysis Report. The Fire Hazards Analysis Report states, in | . South Texas Project Nuclear Operating Company | ||
, Units 1 and 2 license condition 2 | |||
.E requires, in part, that the licensee implement and maintain in effect all provisions of the Fire Protection Program as described in the Fire Hazards Analysis Report. The Fire Hazards Analysis Report states | |||
, in par t , that the licensee is committed to implementing the requirements of National Fire Protection Association standard for automatic fire detection, NFPA 72E-1978. The NFPA 72E-1978 standard requires four smoke detectors be installed in each unit's auxiliary shutdown room, Fire Zone 071. Contrary to the above, from initial plant start up in 1987 for Unit 1 and 1988 for Unit 2, the licensee operated with one less than the required number of smoke detectors in each units' auxiliary shutdown room. | |||
Since this violation was of very low safety significance and was documented in the licensee's corrective action program as Condition Report 10-21670, it is being treated as a noncited violation consistent with Section 2.3.2.a of the NRC Enforcement Policy: NCV 05000498/2010005-02 and 05000499/2010005 | |||
-0 2, "Failure to Install the Required Number of Smoke Detectors (4) in the Auxiliary Shutdown Room s." | |||
{{a|1R06}} | {{a|1R06}} | ||
==1R06 Flood Protection Measures== | ==1R06 Flood Protection Measures== | ||
{{IP sample|IP=IP 71111.06}} | {{IP sample|IP=IP 71111.06}} | ||
a. The inspectors reviewed the UFSAR, the flooding analysis, and plant procedures to assess susceptibilities involving internal flooding; reviewed the corrective action program to determine if licensee personnel identified and corrected flooding problems; inspected underground bunkers/manholes to verify the adequacy of sump pumps, level alarm circuits, cable splices subject to submergence, and drainage for bunkers/manholes; and verified that operator actions for coping with flooding can reasonably achieve the desired outcomes. The inspectors also inspected the areas listed below to verify the adequacy of equipment seals located below the flood line, floor and wall penetration seals, watertight door seals, common drain lines and sumps, sump pumps, level alarms, and control circuits, and temporary or removable flood barriers. Specific documents reviewed during this inspection are listed in the attachment. Inspection Scope | a. The inspectors reviewed the UFSAR, the flooding analysis, and plant procedures to assess susceptibilities involving internal flooding; reviewed the corrective action program to determine if licensee personnel identified and corrected flooding problems; inspected underground bunkers/manholes to verify the adequacy of sump pumps, level alarm circuits, cable splices subject to submergence, and drainage for bunkers/manholes; and verified that operator actions for coping with flooding can reasonably achieve the desired outcomes. The inspectors also inspected the areas listed below to verify the adequacy of equipment seals located below the flood line, floor and wall penetration seals, watertight door seals, common drain lines and sumps, sump pumps, level alarms, and control circuits, and temporary or removable flood barriers. | ||
Specific documents reviewed during this inspection are listed in the attachment. | |||
Inspection Scope November 23, 2010, Unit 1, electrical auxiliary building 10-foot elevation These activities constitute completion of one flood protection measures inspection sample as defined in Inspection Procedure 71111.06-05. b. No findings were identified. | |||
Findings | |||
{{a|1R11}} | {{a|1R11}} | ||
==1R11 Licensed Operator Requalification Program== | ==1R11 Licensed Operator Requalification Program== | ||
{{IP sample|IP=IP 71111.11}} | {{IP sample|IP=IP 71111.11}} | ||
a. On October 14, 2010, the inspectors observed a crew of licensed operations personnel in the plant's simulator to verify that operator performance was adequate, evaluators were identifying and documenting crew performance problems, and training was being conducted in accordance with licensee procedures. The inspectors evaluated the following areas: Inspection Scope | a. On October 14, 2010, the inspectors observed a crew of licensed operations personnel in the plant's simulator to verify that operator performance was adequate, evaluators were identifying and documenting crew performance problems, and training was being conducted in accordance with licensee procedures. The inspectors evaluated the following areas: | ||
Inspection Scope Licensed operator performance Crew's clarity and formality of communications Crew's ability to take timely actions in the conservative direction Crew's prioritization, interpretation, and verification of annunciator alarms Crew's correct use and implementation of abnormal and emergency procedures Control board manipulations Oversight and direction from supervisors Crew's ability to identify and implement appropriate technical specification actions and emergency plan actions and notifications The inspectors compared the crew's performance in these areas to pre | |||
-established operator action expectations and successful critical task completion requirements | |||
. These activities constitute completion of one quarterly licensed | |||
-operator requalification program sample as defined in Inspection Procedure 71111.11. b. No findings were identified. | |||
Findings | |||
{{a|1R12}} | {{a|1R12}} | ||
==1R12 Maintenance Effectiveness== | ==1R12 Maintenance Effectiveness== | ||
{{IP sample|IP=IP 71111.12}} | {{IP sample|IP=IP 71111.12}} | ||
a. The inspectors evaluated degraded performance issues involving the following risk-significant systems: Inspection Scope | a. The inspectors evaluated degraded performance issues involving the following risk-significant systems: | ||
Verifying appropriate performance criteria for structures, systems, and components classified as having an adequate demonstration of performance through preventive maintenance, as described in 10 CFR 50.65(a)(2), or as requiring the establishment of appropriate and adequate goals and corrective actions for systems classified as not having adequate performance, as described in 10 CFR 50.65(a)(1) The inspectors assessed performance issues with respect to the reliability, availability, and condition monitoring of the system. In addition, the inspectors verified maintenance effectiveness issues were entered into the corrective action program with the appropriate significance characterization. Specific documents reviewed during this inspection are listed in the attachment. These activities constitute completion of two quarterly maintenance effectiveness | Inspection Scope October 26, 2010, Units 1 and 2, safety injection November 5, 2010, Units 1 and 2, 7300 processor support system The inspectors reviewed events such as where ineffective equipment maintenance has resulted in valid or invalid automatic actuations of engineered safeguards systems and independently verified the licensee | ||
's actions to address system performance or condition problems in terms of the following: | |||
Implementing appropriate work practices Identifying and addressing common cause failures Scoping of systems in accordance with 10 CFR 50.65(b) | |||
Characterizing system reliability issues for performance Charging unavailability for performance Trending key parameters for condition monitoring Ensuring proper classification in accordance with 10 CFR 50.65(a)(1) or (a)(2) | |||
Verifying appropriate performance criteria for structures, systems, and components classified as having an adequate demonstration of performance through preventive maintenance, as described in 10 CFR 50.65(a)(2), or as requiring the establishment of appropriate and adequate goals and corrective actions for systems classified as not having adequate performance, as described in 10 CFR 50.65(a)(1) | |||
The inspectors assessed performance issues with respect to the reliability, availability, and condition monitoring of the system. In addition, the inspectors verified maintenance effectiveness issues were entered into the corrective action program with the appropriate significance characterization. Specific documents reviewed during this inspection are listed in the attachment. | |||
These activities constitute completion of two quarterly maintenance effectiveness sample s as defined in Inspection Procedure 71111.12-05. b. No findings were identified. | |||
Findings | |||
{{a|1R13}} | {{a|1R13}} | ||
==1R13 Maintenance Risk Assessments and Emergent Work Control== | ==1R13 Maintenance Risk Assessments and Emergent Work Control== | ||
{{IP sample|IP=IP 71111.13}} | {{IP sample|IP=IP 71111.13}} | ||
a. The inspectors reviewed licensee personnel's evaluation and management of plant risk for the maintenance and emergent work activities affecting risk-significant and safety-related equipment listed below to verify that the appropriate risk assessments were performed prior to removing equipment for work: Inspection Scope | a. The inspectors reviewed licensee personnel | ||
's evaluation and management of plant risk for the maintenance and emergent work activities affecting risk-significant and safety-related equipment listed below to verify that the appropriate risk assessments were performed prior to removing equipment for work: | |||
Inspection Scope October 15, 2010, Units 1 and 2, planned maintenance on Unit 1 train D with high risk activity to replace the main generator stator cooling water filters | |||
, and Unit 2 train C large work week maintenance activities including high risk activity to cycle control rod M | |||
-10 lift coil 500 times October 29, 2010, Units 1 and 2, planned maintenance on Unit 1 train B with extensive work on the qualified display processing system, and Unit 2 train A large work week maintenance activities including refurbishing a safety | |||
-related inverter for digital rod position indication November 4 | |||
-25 , 2010, Units 1 and 2, planned maintenance on Unit 1, and Unit 2 outage activities associated with the startup feedwater pump supply breaker failure and the reactor coolant pump 2C seal flange bolting area boric acid leak repair (forced Outage 2F1001) | |||
The inspectors selected these activities based on potential risk significance relative to the reactor safety cornerstones. As applicable for each activity, the inspectors verified that licensee personnel performed risk assessments as required by 10 CFR 50.65(a)(4) and that the assessments were accurate and complete. When licensee personnel performed emergent work, the inspectors verified that the licensee personnel promptly assessed and managed plant risk. The inspectors reviewed the scope of maintenance work, discussed the results of the assessment with the licensee | |||
's probabilistic risk analyst or shift technical advisor, and verified plant conditions were consistent with the risk assessment. The inspectors also reviewed the technical specification requirements and inspected portions of redundant safety systems, when applicable, to verify risk analysis assumptions were valid and applicable requirements were met. | |||
Specific documents reviewed during this inspection are listed in the attachment. | |||
These activities constitute completion of three maintenance risk assessments and emergent work control inspection sample s as defined in Inspection Procedure 71111.13-05. b. No findings were identified. | |||
Findings | |||
{{a|1R15}} | {{a|1R15}} | ||
==1R15 Operability Evaluations== | ==1R15 Operability Evaluations== | ||
{{IP sample|IP=IP 71111.15}} | {{IP sample|IP=IP 71111.15}} | ||
a. The inspectors reviewed the following issues: Inspection Scope | a. The inspectors reviewed the following issues: | ||
Inspection Scope November 12, 2010, Unit 2, reactor coolant pump 2C boric acid leak at the seal housing flange bolting area November 15, 2010, Units 1 and 2, component cooling water supply to nonsafety-related loads November 25, 2010, Unit 1, qualified display processing system APC-A2 communications controller board lockups | |||
; this board has experienced five lockups since April 2010 and no conclusive cause has been determined except for the most likely cause to be noise induced fa i lure December 8, 2010, Unit 2, essential cooling water system train B traveling screen south basket carrier chain with a broken chain link December 10, 2010, Unit 1, polyacrylic acid injection into the feedwater system to reduce iron deposition in the steam generators The inspectors selected these potential operability issues based on the risk significance of the associated components and systems. The inspectors evaluated the technical adequacy of the evaluations to ensure that technical specification operability was properly justified and the subject component or system remained available such that no unrecognized increase in risk occurred. The inspectors compared the operability and design criteria in the appropriate sections of the technical specification s and UFSAR to the licensee personnel's evaluations to determine whether the components or systems were operable. Where compensatory measures were required to maintain operability, the inspectors determined whether the measures in place would function as intended and were properly controlled. The inspectors determined, where appropriate, compliance with bounding limitations associated with the evaluations. Additionally, the inspectors also reviewed a sampling of corrective action documents to verify that the licensee was identifying and correcting any deficiencies associated with operability evaluations. Specific documents reviewed during this inspection are listed in the attachment. | |||
These activities constitute completion of five operability evaluations inspection samples as defined in Inspection Procedure 71111.15-05. b. No findings were identified. | |||
Findings | |||
{{a|1R18}} | {{a|1R18}} | ||
==1R18 Plant Modifications== | ==1R18 Plant Modifications== | ||
{{IP sample|IP=IP 71111.18}} | {{IP sample|IP=IP 71111.18}} | ||
a. Temporary Modifications To verify that the safety functions of important safety systems were not degraded, the inspectors reviewed the temporary modification titled "Allow 2H Standby Bus to be reenergized without cubicle 1A in use." This temporary modification removed the Unit 2 startup steam generator feedwater pump 24 from service and allowed the unit to restart. Inspection Scope The inspectors reviewed the temporary modification and the associated safety-evaluation screening against the system design bases documentation, including the UFSAR and the technical | a. Temporary Modifications To verify that the safety functions of important safety systems were not degraded, the inspectors reviewed the temporary modification titled "Allow 2H Standby Bus to be reenergized without cubicle 1A in use." This temporary modification removed the Unit 2 startup steam generator feedwater pump 24 from service and allowed the unit to restart. | ||
Inspection Scope The inspectors reviewed the temporary modification and the associated safety-evaluation screening against the system design bases documentation, including the UFSAR and the technical specification s, and verified that the modification did not adversely affect the system operability/availability. The inspectors also verified that the installation and restoration were consistent with the modification documents and that configuration control was adequate. Additionally, the inspectors verified that the temporary modification was identified on control room drawings, appropriate tags were placed on the affected equipment, and licensee personnel evaluated the combined effects on mitigating systems and the integrity of radiological barriers. | |||
These activities constitute completion of one sample for temporary plant modifications as defined in Inspection Procedure 71111.18-05. b. No findings were identified. | |||
Findings | |||
{{a|1R19}} | {{a|1R19}} | ||
==1R19 Postmaintenance Testing== | ==1R19 Postmaintenance Testing== | ||
{{IP sample|IP=IP 71111.19}} | {{IP sample|IP=IP 71111.19}} | ||
a. The inspectors reviewed the following postmaintenance activities to verify that procedures and test activities were adequate to ensure system operability and functional capability: Inspection Scope October 27, 2010, Unit 1, qualified display processing system APC-A2 replacement of power supplies, ac line filter, and backplane board due to a repetitive failure of a communications card | a. The inspectors reviewed the following postmaintenance activities to verify that procedures and test activities were adequate to ensure system operability and functional capability: | ||
Inspection Scope October 27, 2010, Unit 1, qualified display processing system APC | |||
-A2 replacement of power supplies, ac line filter, and backplane board due to a repetitive failure of a communications card October 29, 2010, Unit 1, control room envelope electrical auxiliary building door 365 stuck open October 30, 2010, Unit 2, distribution panel 3 inverter refurbishment, replacement of transformers, chokes, capacitors, and cooling fans November 9, 2010, Unit 1, essential chiller 12A lube oil pressure regulator replacement November 24, 2010, Unit 1, qualified display processing system APC-A2 communications controller board, and the class 1-E 86/30 computer/man-machine interface card December 9, 2010, Unit 2, control room make | |||
-up filtration unit 21B flow control damper motor and pump replacemen t The inspectors selected these activities based upon the structure, system, or component's ability to affect risk. The inspectors evaluated these activities for the following (as applicable): | |||
The effect of testing on the plant had been adequately addressed; testing was adequate for the maintenance performed Acceptance criteria were clear and demonstrated operational readiness; test instrumentation was appropriate The inspectors evaluated the activities against the technical specification s, the UFSA R , 10 CFR Part 50 requirements, licensee procedures, and various NRC generic communications to ensure that the test results adequately ensured that the equipment met the licensing basis and design requirements. In addition, the inspectors reviewed corrective action documents associated with postmaintenance tests to determine whether the licensee was identifying problems and entering them in the corrective action program and that the problems were being corrected commensurate with their importance to safety. Specific documents reviewed during this inspection are listed in the attachment. | |||
These activities constitute completion of six postmaintenance testing inspection samples as defined in Inspection Procedure 71111.19-05. b. No findings were identified. | |||
Findings | |||
{{a|R20}} | {{a|R20}} | ||
==R20 Refueling and Other Outage Activities== | ==R20 Refueling and Other Outage Activities== | ||
{{IP sample|IP=IP 71111.20}} | {{IP sample|IP=IP 71111.20}} | ||
a. The inspectors reviewed the outage safety plan and contingency plans for the Unit 2 forced outage (2F1001) due to the startup feedwater pump breaker failure and leakage at the reactor coolant pump 2C seal housing flange area, conducted November 4-25, 2010, to confirm that licensee personnel had appropriately considered risk, industry experience, and previous site-specific problems in developing and implementing a plan that assured maintenance of defense in depth. During the forced outage, the inspectors observed portions of the shutdown and cooldown processes and monitored licensee controls over the outage activities listed below. Inspection Scope | a. The inspectors reviewed the outage safety plan and contingency plans for the Unit 2 forced outage (2F1001) due to the startup feedwater pump breaker failure and leakage at the reactor coolant pump 2C seal housing flange area, conducted November 4-25 , 2010, to confirm that licensee personnel had appropriately considered risk, industry experience, and previous site | ||
-specific problems in developing and implementing a plan that assured maintenance of defense in depth. During the forced outage, the inspectors observed portions of the shutdown and cooldown processes and monitored licensee controls over the outage activities listed below. | |||
Inspection Scope Configuration management, including maintenance of defense in depth, is commensurate with the outage safety plan for key safety functions and compliance with the applicable technical specification s when taking equipment out of service. | |||
Clearance activities, including confirmation that tags were properly hung and equipment appropriately configured to safely support the work or testing. | |||
Installation and configuration of reactor coolant pressure, level, and temperature instruments to provide accurate indication, accounting for instrument error | |||
. Status and configuration of electrical systems to ensure that technical specification s and outage safety | |||
-plan requirements were met, and controls over switchyard activities. | |||
Monitoring of decay heat removal processes, systems, and components. | |||
Verification that outage work was not impacting the ability of the operations personnel to operate the spent fuel pool cooling system. | |||
Reactor water inventory controls, including flow paths, configurations, and alternative means for inventory addition, and controls to prevent inventory loss. | |||
Controls over activities that could affect reactivity. | |||
Specific documents reviewed during this inspection are listed in the attachment. These activities constitute completion of one refueling outage and other outage inspection sample as defined in Inspection Procedure 71111.20-05. b. No findings were identified. Findings | Maintenance of secondary containment as required by the technical specification s. Start up and ascension to full power operation, tracking of start up prerequisites, walkdown of the drywell (primary containment) to verify that debris had not been left which could block emergency core cooling system suction strainers, and reactor physics testing. | ||
Licensee identification and resolution of problems related to refueling outage activities | |||
. | |||
Specific documents reviewed during this inspection are listed in the attachment. | |||
These activities constitute completion of one refueling outage and other outage inspection sample as defined in Inspection Procedure 71111.20-05. b. No findings were identified. | |||
Findings | |||
{{a|1R22}} | {{a|1R22}} | ||
==1R22 Surveillance Testing== | ==1R22 Surveillance Testing== | ||
{{IP sample|IP=IP 71111.22}} | {{IP sample|IP=IP 71111.22}} | ||
a. The inspectors reviewed the UFSAR, procedure requirements, and technical specifications to ensure that the surveillance activities listed below demonstrated that the systems, structures, and/or components tested were capable of performing their intended safety functions. The inspectors either witnessed or reviewed test data to verify that the significant surveillance test attributes were adequate to address the following: Inspection Scope | a. The inspectors reviewed the UFSAR, procedure requirements, and technical specifications to ensure that the surveillance activities listed below demonstrated that the systems, structures, and/or components tested were capable of performing their intended safety functions. The inspectors either witnessed or reviewed test data to verify that the significant surveillance test attributes were adequate to address the following: | ||
Inspection Scope Preconditioni ng Evaluation of testing impact on the plant Acceptance criteria Test equipment Procedures Jumper/lifted lead controls Test data Testing frequency and method demonstrated technical specification operability Test equipment removal Restoration of plant systems Fulfillment of ASME Code requirements Updating of performance indicator data Engineering evaluations, root causes, and bases for returning tested systems, structures, and component s not meeting the test acceptance criteria were correct Reference setting data Annunciators and alarms setpoints The inspectors also verified that licensee personnel identified and implemented any needed corrective actions associated with the surveillance testing. | |||
October 17, 2010, Unit 2, residual heat removal pump 2C inservice test November 29, 2010, Unit 2, reactor containment building exterior concrete surface examination December 13, 2010, Unit 2, turbine | |||
-driven auxiliary feedwater pump 24 inservice test Specific documents reviewed during this inspection are listed in the attachment. | |||
These activities constitute completion of three surveillance testing inspection samples as defined in Inspection Procedure 71111.22-05. b. | |||
=====Introduction.===== | =====Introduction.===== | ||
The inspectors reviewed a Green self-revealing noncited violation of 10 CFR Part 50, Appendix B, Criteria V, "Instructions, Procedures, and Drawings," for the failure to follow Procedure 0PSP03-RH-0003, "Residual Heat Removal Pump 1C(2C) Inservice Test," Revision 16. Findings | The inspectors reviewed a Green self | ||
-revealing noncited violation of 10 CFR Part 50, Appendix B, Criteria V, "Instructions, Procedures, and Drawings," for the failure to follow Procedure 0PSP03-RH-0003, "Residual Heat Removal Pump 1C(2C) Inservice Test," Revision 16. | |||
Findings | |||
=====Description.===== | =====Description.===== | ||
On October 17, 2010, the Unit 2 control room was performing a surveillance test on residual heat removal pump 2C per Procedure 0PSP03-RH-0003. The procedure directs the operator to establish the proper lineup for the test in step 5.2.2 which states, "IF in Modes 1, 2, or 3 THEN establish the following valve/breaker lineup for RHR Train C and LHSI Train C:," and is followed by a table with various valves and breakers to be aligned by one individual and then verified by another individual. This table lists mini flow isolation valve MOV-0067C as being required to be open. When the first operator was aligning the valve, he used the plant computer indication rather than the control board indication. Because the plant computer lists several valves in a row without any grid lines for reference, the operator | On October 17, 2010, the Unit 2 control room was performing a surveillance test on residual heat removal pump 2C per Procedure 0PSP03 | ||
-RH-0003. The procedure directs the operator to establish the proper lineup for the test in step 5.2.2 which states, " | |||
IF in Modes 1, 2, or 3 THEN establish the following valve/breaker lineup for RHR Train C and LHSI Train C:," and is followed by a table with various valves and breakers to be aligned by one individual and then verified by another individual. This table lists mini flow isolation valve MOV-0067C as being required to be open. When the first operator was aligning the valve | |||
, he used the plant computer indication rather than the control board indication. Because the plant computer lists several valves in a row without any grid lines for reference | |||
, the operator mistak enly read the valve as being open. Additionally, the procedure did not allow for the plant computer to be used for position indication for this valve. | |||
The first operator failed to remain engaged in th e activity at hand and failed to perform an adequate self | |||
-check to ensure that he was following the procedure. | |||
The second operator who verified the position of MOV | |||
-0067C did not identify that the valve was closed and should have been open because he also failed to remain engaged in the activity at hand and failed to perform an adequate self | |||
-check to ensure that the valves listed in the procedure were in the correct position prior to starting the pump. | |||
Consequently | |||
, when the first operator started the pump | |||
, it tripped on low flow approximately 5 seconds later. The operators then identified that they had left MOV-0067C closed. The shift manager then refocused all the control room operators and ensured that everyone was engaged in the task at hand. The operators re-performed the procedure and successfully completed the surveillance test. | |||
Corrective actions that the licensee implemented includ ed remediating the individuals involved on the use of human performance tools and revising the surveillance test procedures for all the residual heat removal pumps to list the mini flow isolation valves as a separate stand alone step and not imbedded in a table with other valves/breakers. | |||
=====Analysis.===== | =====Analysis.===== | ||
The failure to reposition the mini flow isolation valve MOV-0067C as required by the procedure was a performance deficiency. The finding was more than minor because it affected the Mitigating Systems Cornerstone attributes of Procedure Quality and Human Performance and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. This deficiency directly challenged the residual heat removal system by relying on the low flow trip to secure the pump before pump damage | The failure to reposition the mini flow isolation valve MOV-0067C as required by the procedure was a performance deficiency. The finding was more than minor because it affected the Mitigating Systems Cornerstone attributes of Procedure Quality and Human Performance and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. | ||
This deficiency directly challenged the residual heat removal system by relying on the low flow trip to secure the pump before pump damage occur r ed. The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609, Attachment 0609.04, "Phase 1 - Initial Screening and Characterization of Findings," dated January 10, 2008, because it affected the Mitigating Systems Cornerstone while the plant was at power. The finding was determined to be of very low safety significance (Green) because it was not a design or qualification deficiency | |||
; it did not result in the loss of a system safety function; it did not represent the loss of a single train for greater than technical specification allowed outage time | |||
; it did not represent a loss of one or more nontechnical specification risk | |||
-significant equipment for greater than 24 hours | |||
; and it did not screen as potentially risk significant due to seismic, flooding, or severe weather. In addition, this finding had human performance crosscutting aspects associated with work practices in that the licensee did not communicate human error prevention techniques, such as self checking, commensurate with the risk [H.4(a)]. | |||
=====Enforcement.===== | =====Enforcement.===== | ||
Title 10 CFR Part 50, Appendix B, Criteria V, "Instructions, Procedures, and Drawings," requires, in part, that activities affecting quality | Title 10 CFR Part 50, Appendix B, Criteria V, "Instructions, Procedures, and Drawings," requires, in part, that activities affecting quality sh all be prescribed by documented procedures of a type appropriate to the circumstances and shall be accomplished in accordance with these procedures. Procedure 0PSP03 | ||
-RH-0003, "Residual Heat Removal Pump 1C(2C) Inservice Test," Revision 16, step 5.2.2 required that valve "Mini Flow Isolation MOV-0067C" be open. Contrary to this, on October 17, 2010 , during the quarterly surveillance test run | |||
, step 5.2.2 was performed and verified complete with mini flow isolation valve MOV-0067C left in the closed position. This resulted in the residual heat removal pump tripping on its protective relay for low flow. Immediate corrective actions included direct oversight of the reactor operators by a senior reactor operator to ensure the proper valve lineup and completing the quarterly surveillance test, completed later the same day, to ensure residual heat removal pump 2C operability. Since this violation was of very low safety significance and was documented in the licensee's corrective action program as Condition Reports 10-22453 and 10-22472, it is being treated as a noncited violation consistent with Section 2.3.2.a of the NRC Enforcement Policy: NCV 05000499/2010005 | |||
-03, "Failure to Follow Procedure Results in Protective Relay Trip of Residual Heat Removal Pump." | |||
===Cornerstone:=== | ===Cornerstone:=== | ||
Line 157: | Line 456: | ||
==1EP1 Exercise Evaluation== | ==1EP1 Exercise Evaluation== | ||
{{IP sample|IP=IP 71114.01}} | {{IP sample|IP=IP 71114.01}} | ||
a. The inspectors reviewed the objectives and scenario for the 2010 biennial emergency plan exercise to determine if the exercise would acceptably test major elements of the emergency plan. The scenario simulated a sudden increase in reactor coolant activity as indicated by alarms on the failed fuel monitor (loss of the fuel integrity fission product barrier), failure of reactor coolant system chemistry sampling valves, a steam generator tube leak that escalates to a steam generator tube rupture (loss of the reactor coolant system fission product barrier), a halon discharge in the plant computer room, a small radiological release to the environment through the unit vent followed by catastrophic failure of the 1D steam line pressure-operated relief valve (loss of containment fission product barrier), to demonstrate the licensee personnel's capability to implement their emergency plan | a. The inspectors reviewed the objectives and scenario for the 2010 biennial emergency plan exercise to determine if the exercise would acceptably test major elements of the emergency plan. The scenario simulated a sudden increase in reactor coolant activity as indicated by alarms on the failed fuel monitor (loss of the fuel integrity fission product barrier), failure of reactor coolant system chemistry sampling valves, a steam generator tube leak that escalates to a steam generator tube rupture (loss of the reactor coolant system fission product barrier), a halon discharge in the plant computer room, a small radiological release to the environment through the unit vent followed by catastrophic failure of the 1D steam line pressure-operated relief valve (loss of containment fission product barrier), to demonstrate the licensee personnel's capability to implement their emergency plan. | ||
b. No findings were identified. Findings | Inspection Scope The inspectors evaluated exercise performance by focusing on the risk | ||
-significant activities of event classification, offsite notification, recognition of offsite dose consequences, and development of protective action recommendations in the simulator control room and the following dedicated emergency response facilities: | |||
Technical Support Center Operations Support Center Emergency Operations Facility The inspectors also assessed recognition of | |||
, and response to | |||
, abnormal and emergency plant conditions, the transfer of decision making authority and emergency function responsibilities between facilities, onsite and offsite communications, protection of emergency workers, emergency repair evaluation and capability, and the overall implementation of the emergency plan to protect public health and safety and the environment. The inspectors reviewed the current revision of the facility emergency plan, emergency plan implementing procedures associated with operation of the licensee's emergency response facilities, procedures for the performance of associated emergency functions, and other documents as listed in the attachment to this report. | |||
The inspectors compared the observed exercise performance with the requirements in the facility emergency plan, 10 CFR 50.47(b), 10 CFR Part 50 , Appendix E, and with the guidance in the emergency plan implementing procedures and other federal guidance. | |||
The inspectors attended the post | |||
-exercise critiques in each emergency response facility to evaluate the initial licensee self | |||
-assessment of exercise performance. The inspectors also attended a subsequent formal presentation of critique items to plant management. The specific documents reviewed during this inspection are listed in the attachment. | |||
These activities constitute completion of one sample as defined in Inspection Procedure 71114.01-05. | |||
b. No findings were identified. | |||
Findings | |||
{{a|1EP4}} | {{a|1EP4}} | ||
==1EP4 Emergency Action Level and Emergency Plan Changes== | ==1EP4 Emergency Action Level and Emergency Plan Changes== | ||
{{IP sample|IP=IP 71114.04}} | {{IP sample|IP=IP 71114.04}} | ||
a. The | a. The inspector s contacted the licensee staff to verify that no changes to the licensee's emergency plan or implementing procedures requiring regulatory review according to the requirements of Inspection Procedure 71114.04 were submitted by the licensee between January and December 2010. This procedure is closed in accordance with Inspection Manual Chapter 0306, "Information Technology Support for the Reactor Oversight Process," because opportunity to apply the full procedure was not available during the inspection cycle. | ||
Inspection Scope No samples were completed as defined in Inspection Procedure 71114.04-05. b. No findings were identified. | |||
Findings | |||
==OTHER ACTIVITIES== | ==OTHER ACTIVITIES== | ||
Line 170: | Line 489: | ||
{{IP sample|IP=IP 71151}} | {{IP sample|IP=IP 71151}} | ||
===.1 Data Submission Issue=== | ===.1 Data Submission Issue=== | ||
===.2 Mitigating Systems Performance Index - Emergency ac Power System | a. The inspectors performed a review of the performance indicator data submitted by the licensee for the third quarter 20 10 performance indicators for any obvious inconsistencies prior to its public release in accordance with Inspection Manual Chapter 0608, "Performance Indicator Program." | ||
a. The inspectors sampled licensee submittals for the mitigating systems performance index - emergency ac power system performance indicator for Units 1 and 2 for the period from the fourth quarter 2009 through the third quarter 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors Inspection Scope used definitions and guidance contained in NEI Document 99-02, "Regulatory Assessment Performance Indicator Guideline," Revision 6. The inspectors reviewed the licensee's operator narrative logs, mitigating systems performance index derivation reports, issue reports, event reports, and NRC integrated inspection reports for the period of October 2009 through September 2010 to validate the accuracy of the submittals. The inspectors reviewed the mitigating systems performance index component risk coefficient to determine if it had changed by more than 25 percent in value since the previous inspection, and if so, that the change was in accordance with applicable NEI guidance. The inspectors also reviewed the licensee's issue report database to determine if any problems had been identified with the performance indicator data collected or transmitted for this indicator and none were identified. Specific documents reviewed are described in the attachment to this report. These activities constitute completion of one mitigating systems performance | |||
Inspection Scope This review was performed as part of the inspectors' normal plant status activities and, as such, did not constitute a separate inspection sample. | |||
b. No findings were identified. | |||
Findings | |||
===.2 Mitigating Systems Performance Index - Emergency ac Power System=== | |||
(MS06) a. The inspectors sampled licensee submittals for the mitigating systems performance index - emergency ac power system performance indicator for Units 1 and 2 for the period from the fourth quarter 2009 through the third quarter 2010. | |||
To determine the accuracy of the performance indicator data reported during those periods, the inspectors Inspection Scope used definitions and guidance contained in NEI Document 99-02, "Regulatory Assessment Performance Indicator Guideline," Revision | |||
===6. The inspectors reviewed the licensee's operator narrative logs, mitigating systems performance === | |||
index derivation reports, issue reports, event reports | |||
, and NRC integrated inspection reports for the period of October 2009 through September 2010 to validate the accuracy of the submittals. The inspectors reviewed the mitigating systems performance index component risk coefficient to determine if it had changed by more than 25 percent in value since the previous inspection, and if so, that the change was in accordance with applicable NEI guidance. The inspectors also reviewed the licensee's issue report database to determine if any problems had been identified with the performance indicator data collected or transmitted for this indicator and none were identified. Specific documents reviewed are described in the attachment to this report. | |||
These activities constitute completion of one mitigating systems performance i ndex emergency ac power system sample per unit as defined in Inspection Procedure 71151-05. b. No findings were identified. | |||
Findings | |||
===.3 Mitigating Systems Performance Index=== | |||
- High Pressure Injection Systems (MS07) a. The inspectors sampled licensee submittals for the mitigating systems performance index - high pressure injection systems performance indicator for Units 1 and 2 for the period from the fourth quarter 2009 through the third quarter 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99 | |||
-02, "Regulatory Assessment Performance Indicator Guideline," Revision | |||
===6. The inspectors reviewed the licensee's operator narrative logs, issue reports, mitigating systems performance === | |||
index derivation reports, event reports and NRC integrated inspection reports for the period of October 2009 through September 2010 to validate the accuracy of the submittals. The inspectors reviewed the mitigating systems performance index component risk coefficient to determine if it had changed by more than 25 percent in value since the previous inspection, and if so, that the change was in accordance with applicable NEI guidance. The inspectors also reviewed the licensee's issue report database to determine if any problems had been identified with the performance indicator data collected or transmitted for this indicator and none were identified. Specific documents reviewed are described in the attachment to this report. | |||
Inspection Scope These activities constitute completion of one mitigating systems performance index high pressure in jection system sample per unit as defined in Inspection Procedure 71151-05. b. No findings were identified. Findings | |||
===.4 Mitigating Systems Performance Index=== | |||
- Heat Removal System (MS08) a. The inspectors sampled licensee submittals for the mitigating systems performance index - heat removal system performance indicator for Units 1 and 2 for the period from the fourth quarter 2009 through the third quarter 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99 | |||
-02, "Regulatory Assessment Performance Indicator Guideline," Revision | |||
===6. The inspectors reviewed the licensee's operator narrative logs, issue reports, event reports, mitigating systems performance === | |||
index derivation reports, and NRC integrated inspection reports for the period of October 2009 through September 2010 to validate the accuracy of the submittals. The inspectors reviewed the mitigating systems performance index component risk coefficient to determine if it had changed by more than 25 percent in value since the previous inspection, and if so, that the change was in accordance with applicable NEI guidance. The inspectors also reviewed the licensee's issue report database to determine if any problems had been identified with the performance indicator data collected or transmitted for this indicator and none were identified. Specific documents reviewed are described in the attachment to this report. | |||
Inspection Scope These activities constitute completion of one mitigating systems performance i ndex-heat removal system sample per unit as defined in Inspection Procedure 71151-05. b. No findings were identified. | |||
Findings | |||
===.5 Mitigating Systems Performance Index=== | |||
- Residual Heat Removal System (MS09) a. The inspectors sampled licensee submittals for the mitigating systems performance index - residual heat removal system performance indicator for Units 1 and 2 for the period from the fourth quarter 2009 through the third quarter 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99 | |||
-02, "Regulatory Assessment Performance Indicator Guideline," Revision | |||
===6. The inspectors reviewed the licensee's operator narrative logs, issue reports, mitigating systems performanc=== | |||
e index derivation reports, event reports and NRC integrated inspection reports for the period of October 2009 through September 2010 to validate the accuracy of the submittals. The inspectors reviewed the mitigating systems performance index component risk coefficient to determine if it had changed by more than 25 percent in value since the previous inspection, and if so, that the change was in accordance with applicable NEI guidance. The inspectors also reviewed the licensee's issue report database to determine if any problems had been identified with the performance indicator data collected or transmitted for this indicator and none were identified. Specific documents reviewed are described in the attachment to this report. | |||
Inspection Scope These activities constitute completion of one mitigating systems performance i ndex residual heat removal system sample per unit as defined in Inspection Procedure 71151-05. b. No findings were identified. | |||
Findings | |||
===.6 Mitigating Systems Performance Index=== | |||
- Cooling Water Systems (MS10) a. The inspectors sampled licensee submittals for the mitigating systems performance index - cooling water systems performance indicator for Units 1 and 2 for the period from the fourth quarter 2009 through the third quarter 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99 | |||
-02, "Regulatory Assessment Performance Indicator Guideline," Revision | |||
===6. The inspectors reviewed the licensee's operator narrative logs, issue reports, mitigating systems performance === | |||
index derivation reports, event reports | |||
, and NRC integrated inspection reports for the period of October 2009 through September 2010 to validate the accuracy of the submittals. The inspectors reviewed the mitigating systems performance index component risk coefficient to determine if it had changed by more than 25 percent in value since the previous inspection, and if so, that the change was in accordance with applicable NEI guidance. The inspectors also reviewed the licensee's issue report database to determine if any problems had been identified with the performance indicator data collected or transmitted for this indicator and none were identified. Specific documents reviewed are described in the attachment to this report. | |||
Inspection Scope These activities constitute completion of one mitigating systems performance index-cooling water system sample per unit as defined in Inspection Procedure 71151-05. b. No findings were identified. | |||
Findings | |||
===.7 Drill/Exercise Performance=== | |||
(EP01) a. The inspectors sampled licensee submittals for the drill/exercise performance | |||
, performance indicator for the period October 2009 through September 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99 | |||
-02, "Regulatory Assessment Performance Indicator Guideline," Revision 6. The inspectors reviewed the licensee's records associated with the performance indicator to verify that the licensee accurately reported the indicator in accordance with relevant procedures and the NEI guidance. Specifically, the inspectors reviewed licensee records and Inspection Scope processes including procedural guidance on assessing opportunities for the performance indicator, assessments of performance indicator opportunities during predesignated control room simulator training sessions | |||
, performance during the 20 10 biennial exercise | |||
, and performance during other drills. The specific documents reviewed during the inspection are described in the attachment to this report. | |||
These activities constitute completion of one sample of the drill/exercise performance as defined in Inspection Procedure 71151-05. b. No findings were identified. | |||
Findings | |||
===. | ===.8 Emergency Response Organization Drill Participation=== | ||
(EP02) a. The inspectors sampled licensee submittals for the emergency response organization drill participation performance indicator for the period October 2009 through September 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99 | |||
a. The inspectors sampled licensee submittals for the | -02, "Regulatory Assessment Performance Indicator Guideline," Revision 6. The inspectors reviewed the licensee's records associated with the performance indicator to verify that the licensee accurately reported the indicator in accordance with relevant procedures and the NEI guidance. Specifically, the inspectors reviewed licensee records and processes including procedural guidance on assessing opportunities for the performance indicator | ||
, and revisions of the roster of personnel assigned to key emergency response organization positions. The specific documents reviewed during the inspection are described in the attachment to this report. Inspection Scope These activities constitute completion of one sample of the emergency response organization drill participation as defined in Inspection Procedure 71151-05. b. No findings were identified. | |||
Findings | |||
===. | ===.9 Alert and Notification System=== | ||
(EP03) a. The inspectors sampled licensee submittals for the alert and notification system performance indicator for the period October 2009 through September 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99 | |||
a. The inspectors sampled licensee submittals for the | -02, "Regulatory Assessment Performance Indicator Guideline," Revision 6. The inspectors reviewed the licensee's records associated with the performance indicator to verify that the licensee accurately reported the indicator in accordance with relevant procedures and the NEI guidance. Specifically, the inspectors reviewed licensee records and Inspection Scope processes including procedural guidance on assessing opportunities for the performance indicator , and results of periodic alert notification system operability tests. The specific documents reviewed during the inspection are described in the attachment to this report. | ||
These activities constitute completion of one sample of the alert and notification system as defined in Inspection Procedure 71151-05. b. No findings were identified. | |||
Findings | |||
{{a|4OA2}} | {{a|4OA2}} | ||
==4OA2 Identification and Resolution of Problems== | ==4OA2 Identification and Resolution of Problems== | ||
{{IP sample|IP=IP 71152}} | {{IP sample|IP=IP 71152}} | ||
Cornerstones: | Cornerstones: | ||
Initiating Events, Mitigating Systems, Barrier Integrity, Emergency Preparedness, Public Radiation Safety, Occupational Radiation Safety, and Physical Protection | |||
===.1 Routine Review of Identification and Resolution of Problems=== | ===.1 Routine Review of Identification and Resolution of Problems=== | ||
a. As part of the various baseline inspection procedures discussed in previous sections of this report, the inspectors routinely reviewed issues during baseline inspection activities and plant status reviews to verify that they were being entered into the licensee's corrective action program at an appropriate threshold, that adequate attention was being given to timely corrective actions, and that adverse trends were identified and addressed. The inspectors reviewed attributes that included the complete and accurate identification of the problem; the timely correction, commensurate with the safety significance; the evaluation and disposition of performance issues, generic implications, common causes, contributing factors, root causes, extent of condition reviews, and previous occurrences reviews; and the classification, prioritization, focus, and timeliness of corrective actions. Minor issues entered into the licensee's corrective action program because of the inspectors' observations are included in the attached list of documents reviewed. Inspection Scope These routine reviews for the identification and resolution of problems did not constitute any additional inspection samples. Instead, by procedure, they were considered an integral part of the inspections performed during the quarter and documented in Section 1 of this report. b. No findings were identified. Findings | |||
a. As part of the various baseline inspection procedures discussed in previous sections of | |||
this report, the inspectors routinely reviewed issues during baseline inspection activities and plant status reviews to verify that they were being entered into the licensee's corrective action program at an appropriate threshold, that adequate attention was being given to timely corrective actions, and that adverse trends were identified and addressed. The inspectors reviewed attributes that included the complete and accurate identification of the problem; the timely correction, commensurate with the safety significance; the evaluation and disposition of performance issues, generic implications, common causes, contributing factors, root causes, extent of condition reviews, and previous occurrences reviews; and the classification, prioritization, focus, and timeliness of corrective actions. Minor issues entered into the licensee's corrective action program because of the inspectors' observations are included in the attached list of documents reviewed. Inspection Scope These routine reviews for the identification and resolution of problems did not constitute any additional inspection samples. Instead, by procedure, they were considered an integral part of the inspections performed during the quarter and documented in Section 1 of this report. | |||
b. No findings were identified. Findings | |||
===.2 Daily Corrective Action Program Reviews=== | ===.2 Daily Corrective Action Program Reviews=== | ||
====a. Inspection Scope==== | ====a. Inspection Scope==== | ||
In order to assist with the identification of repetitive equipment failures and specific human performance issues for follow-up, the inspectors performed a daily screening of items entered into the licensee's corrective action program. The inspectors accomplished this through review of the station's daily corrective action documents. The inspectors performed these daily reviews as part of their daily plant status monitoring activities and, as such, did not constitute any separate inspection samples. b. No findings were identified. Findings | In order to assist with the identification of repetitive equipment failures and specific human performance issues for follow | ||
-up, the inspectors performed a daily screening of items entered into the licensee's corrective action program. The inspectors accomplished this through review of the station's daily corrective action documents. | |||
The inspectors performed these daily reviews as part of their daily plant status monitoring activities and, as such, did not constitute any separate inspection samples. | |||
b. No findings were identified. | |||
Findings | |||
===.3 Semi-Annual Trend Review=== | ===.3 Semi-Annual Trend Review=== | ||
===.4 Selected Issue Follow | a. The inspectors performed a review of the licensee's corrective action program and associated documents to identify trends that could indicate the existence of a more significant safety issue. The inspectors focused their review on repetitive equipment issues, but also considered the results of daily corrective action item screening discussed in Section 4OA2.2 , above, licensee trending efforts, and licensee human performance results. The inspectors nominally considered the 6 | ||
a. During a review of items entered in the licensee's corrective action program, the inspectors recognized several corrective action | -month period of July 2010 through December 2010, although some examples expanded beyond those dates where the scope of the trend warranted. | ||
Inspection Scope The inspectors also included issues documented outside the normal corrective action program in major equipment problem lists, repetitive and/or rework maintenance lists, departmental problem/challenges lists, system health reports, quality assurance audit/surveillance reports, self | |||
-assessment reports, and Maintenance Rule assessments. The inspectors compared and contrasted their results with the results contained in the licensee's corrective action program trending reports. Corrective actions associated with a sample of the issues identified in the licensee's trending reports were reviewed for adequacy. These activities constitute completion of one single semi | |||
-annual trend inspection sample as defined in Inspection Procedure 71152-05. b. No findings were identified. | |||
However, the inspectors did make the following observations: | |||
Finding s and Observations The operations department continues to experience instances of failing to adhere to procedural usage requirements. This same trend was documented in the previous semi | |||
-annual trend review in NRC Inspection Report 05000498/2010003 and 05000499/2010003. Additional examples that have occurred include: (1) operating a containment spray valve without guidance during a surveillance test while the pump w as running; (2) improperly using a note in the procedure to mark a step in the reactor coolant system check valve leak test procedure as not applicable when the note did not apply | |||
, and consequently several valves were not repositioned | |||
; (3) using the data table for the other unit's reference values during a spent fuel pool cooling pump inservice test; (4) and incorrectly reading a step in the reactor start up procedure and marking a step as not applicable when making preparations to take the plant to solid plant operations to draw a bubble that resulted in inadvertently dumping roughly 500 gallons of reactor coolant into the normal containment sump. While all of these issues are minor violations or findings | |||
, they continue to occur with a frequency that raises concerns. The licensee has addressed each of these def iciencies individually and has written several roll | |||
-up condition reports to determine any underlying causes, but events continue to occur even with corrective actions in place. The inspectors have expressed their concern to licensee management that if this trend continues, it could lead to much more significant events. See Section 1R22 of this report for a more significant example of a failure to adhere to procedural usage that resulted in a more than minor violation. The licensee has implemented additional corrective actions, some of which include: high intensity training in the simulator, crew level performance review boards, crew level human performance clock resets, and a 'back to basics' program. | |||
===.4 Selected Issue Follow=== | |||
-up Inspection a. During a review of items entered in the licensee's corrective action program, the inspectors recognized several corrective action item s documenting multiple failures of the Unit 1 qualified display processing system APC | |||
-A2 communication controller board. The inspectors reviewed the licensee's UFSAR, technical specifications, design basis documents, corrective action program, system health reports, and maintenance rule documents to understand the functions and health of the system. Since April 2010 this board has experienced five failures. Per the licensee's own procedures, after the third failure of the same component | |||
, the licensee enters their Preventing Recurring Equipment P roblems (PREP) process to ensure a methodical restoration of the system. The inspectors determined that the licensee followed their procedures and processes, appropriately considered maintenance rule repetitive functional failures, appropriately classified the system in maintenance rule, performed an appropriate operability evaluation | |||
, and has adequate contingency actions in | |||
-place should the failure occur again. These failures were determined to be related to indicated parameters only and not control functions. Specific documents reviewed during this inspection are listed in the attachment. Inspection Scope These activities constitute completion of one in-depth problem identification and resolution sample as defined in Inspection Procedure 71152-05. b. No findings were identified. | |||
Findings | |||
{{a|OA3}} | {{a|OA3}} | ||
==OA3 Event Follow-up== | ==OA3 Event Follow-up== | ||
{{IP sample|IP=IP 71153}} | {{IP sample|IP=IP 71153}} | ||
===.1 (Closed) Licensee Event Report 05000499/2010 | ===.1 (Closed) Licensee Event Report 05000499/2010=== | ||
The licensee submitted this event report in accordance with 10 CFR 50.73(a)(2)(i)(B). On May 22, 2010, at 3:04 p.m., the licensee commenced surveillance testing on the solid state protection system logic train R. The surveillance testing caused one channel of the engineered safety features actuation system to be inoperable. At 3:17 p.m., with one channel inoperable, the licensee entered Technical Specification 3.3.2 Action 18, which required that the containment purge supply and exhaust valves remain closed. At 3:40 p.m., the secondary reactor operator noted that containment pressure was near the high alarm setpoint and commenced the supplemental purge of containment for pressure control. This is a normal plant evolution that is performed to maintain containment pressure within technical specification requirements. Containment purge was started at 3:42 p.m. and was completed at 3:54 p.m. Prior to beginning the purge, the operator failed to inform the control room unit supervisor, and did not review the control room logs to determine if containment purge was allowed at | |||
00, "Containment Purge in Operation When Not Permitted by Technical Specifications" The licensee submitted this event report in accordance with 10 CFR 50.73(a)(2)(i)(B). On May 22, 2010, at 3:04 p.m., the licensee commenced surveillance testing on the solid state protection system logic train R. The surveillance testing caused one channel of the engineered safety features actuation system to be inoperable. At 3:17 p.m., with one channel inoperable, the licensee entered Technical Specification 3.3.2 Action 18 , which required that the containment purge supply and exhaust valves remain closed. | |||
At 3:40 p.m., the secondary reactor operator noted that containment pressure was near the high alarm setpoint and commenced the supplemental purge of containment for pressure control. | |||
This is a normal plant evolution that is performed to maintain containment pressure within technical specification requirements. Containment purge was started at 3:42 p.m. and was completed at 3:54 p.m. Prior to beginning the purge, the operator failed to inform the control room unit supervisor | |||
, and did not review the control room logs to determine if containment purge was allowed at th at time. The solid state protection system testing completed at 4:01 p.m. and the licensee exited Technical Specification 3.3.2 required actions. During shift turnover, the oncoming shift manager identified that a containment purge had been performed while solid state protection system testing was in progress. The inspectors determined that a violation of Technical Specification 3.3.2 occurred because the containment purge supply and exhaust valves were opened while the solid state protection system train R was inhibited from performing its automatic safety functions during the surveillance test. | |||
Train S, the redundant train, was operable to perform the safety functions, if needed. | |||
The enforcement aspects of this licensee event report are described in Section 4OA7. This licensee event report is closed. | |||
===.2 (Closed) Unresolved Item=== | |||
05000498/2007007-08 , 05000499/2007007 | |||
-08 , "Unresolved Item Involving Combined Adverse Conditions not Considered in Fuel Oil Storage Tank Sizing" During an NRC Component Design Basis Inspection, as documented in NRC Inspection Report 05000498/2007007 and 05000499/2007007, the inspectors identified that the standby diesel generator fuel oil storage tank sizing calculation did not account for the combined effects of vortexing and standby diesel generator frequency variations. | |||
Subsequent NRC review of the issue concluded that the licensee had, in fact, accounted for the combined effects of vortexing and standby diesel generator frequency variations. | Subsequent NRC review of the issue concluded that the licensee had, in fact, accounted for the combined effects of vortexing and standby diesel generator frequency variations. | ||
Specifically, the original NRC concern was based on Calculation MC06038, "Standby Diesel Generator Fuel Oil Storage Tank Level Setting Calculation," Revision 2, which incorporated a 7-day fuel oil requirement of 55,360 gallons. The 55,360-gallon requirement originated in the outdated Calculation MC06256, "Sizing of Standby Diesel Generator Fuel Oil Storage Tank," Revision 4. However, Revision 5 of Calculation MC06256 determined a 51,000-gallon 7-day fuel oil requirement. The inspectors confirmed that the combined effect of vortexing and standby diesel generator frequency variations did not adversely impact design basis fuel oil requirements, assuming a 7-day fuel oil consumption of 51,000 gallons. During the subsequent review of this issue, the inspectors noted that because Calculation MC06038, Revision 2, did not correctly reflect the 7-day fuel oil requirement specified in Calculation MC06256, Revision 5, at the time of the unresolved item, it was a violation of 10 CFR Part 50, Appendix B, Criterion III, "Design Control." This failure to comply with Criterion III constitutes a violation of minor significance that is not subject to enforcement action in accordance with the NRC's Enforcement Policy. The inspectors verified that, through condition | Specifically, the original NRC concern was based on Calculation MC06038, "Standby Diesel Generator Fuel Oil Storage Tank Level Setting Calculation," | ||
Revision 2, which incorporated a 7 | |||
-day fuel oil requirement of 55,360 gallons. The 55,360 | |||
-gallon requirement originated in the outdated Calculation MC06256 | |||
, "Sizing of Standby Diesel Generator Fuel Oil Storage Tank," Revision 4. However, Revision 5 of Calculation MC06256 determined a 51,000 | |||
-gallon 7-day fuel oil requirement. The inspectors confirmed that the combined effect of vortexing and standby diesel generator frequency variations did not adversely impact design basis fuel oil requirements, assuming a 7 | |||
-day fuel oil consumption of 51,000 gallons. | |||
During the subsequent review of this issue, the inspectors noted that because Calculation MC06038 | |||
, Revision 2 | |||
, did not correctly reflect the 7-day fuel oil requirement specified in Calculation MC06256, Revision 5, at the time of the unresolved item, it was a violation of 10 CFR Part 50, Appendix B, Criterion III, "Design Control. | |||
" This failure to comply with Criterion III constitutes a violation of minor significance that is not subject to enforcement action in accordance with the NRC's Enforcement Policy. The inspectors verified that, through condition r eports 07-14398 and 07 | |||
-15592, the current Calculation MC06038 , Revision 3, incorporated the 7 | |||
-day fuel oil requirement determined in Revision 5 of Calculation MC06256. This unresolved item is closed. | |||
===.3 Unit 2 Reactor Trip Following Startup Feedwater Pump Breaker Failure=== | |||
On November 3, 2010, at 10:21 a.m. | |||
, Unit 2 experienced an automatic reactor trip due to a sensed undervoltage condition on loop C reactor coolant pump. All reactor coolant pumps remained running. The undervoltage condition was the result of a fault on the 13.8 kV standby electrical bus 2H, cross tied to auxiliary bus 2H which supplies power to loop C reactor coolant pump. The fault on the 13.8 kV bus occurred when the startup feedwater pump motor breaker was closed as part of planned testing. The breaker for the startup feedwater pump catastrophically failed when the arc chutes failed to extinguish the arc, causing a path to ground, and resulted in the licensee declaring a Notification of Unusual Event at 10:38 a.m. due to an explosion inside the protected area, see event notification # 46387 on the NRC website. As a consequence of the resulting electrical alignment, the train C standby diesel generator automatically started and powered the train C safety-related loads | |||
. All control rods fully inserted and all safety features responded as designed. Consequently, with plant conditions stable in Mo de 3 and the fire brigade having assessed the area | |||
, the Notification of Unusual Event was terminated at 12:40 p.m. | |||
The licensee continues to perform a root cause analysis to determine and understand the failure of the breaker and is preparing a licensee event report submittal. Unit 1 was unaffected by the event and remained at 100 percent rated thermal power. | |||
{{a|4OA5}} | {{a|4OA5}} | ||
==4OA5 Other Activities== | ==4OA5 Other Activities== | ||
===.1 Review of Outside Party Evaluation=== | ===.1 Review of Outside Party Evaluation=== | ||
a. The inspectors reviewed the results of the 2010 World Association of Nuclear Operators assessment of the South Texas Project Electric Generating Station. Inspection Scope b. No findings were identified. Findings | |||
a. The inspectors reviewed the results of the 2010 World Association of Nuclear Operators assessment of the South Texas Project Electric Generating Station. | |||
Inspection Scope b. No findings were identified. | |||
Findings | |||
{{a|4OA6}} | {{a|4OA6}} | ||
==4OA6 Meetings== | ==4OA6 Meetings== | ||
Exit Meeting Summary On November 10, 2010, the inspectors conducted a telephonic exit meeting to present the results of the onsite inspection of the 2010 Biennial Emergency Plan Exercise to Mr. G. Powell, Vice President, Technical Support and Oversight, and other members of the licensee staff. The licensee acknowledged the issues presented. The inspectors asked the licensee whether any materials examined during the inspection should be considered proprietary. No proprietary information was identified. On December 14, 2010, the inspectors conducted a telephonic exit meeting with Mr. G. Hildebrant, Manager, Plant Protection, to verify that no changes to the licensee's emergency plan or implementing procedures requiring regulatory review according to the requirements of Inspection Procedure 71114.04 were submitted by the licensee between January and December 2010. On January 6, 2011, the | |||
=====Exit Meeting Summary===== | |||
On November 10, 2010, the inspectors conducted a telephonic exit meeting to present the results of the onsite inspection of the 2010 Biennial Emergency Plan Exercise to Mr. G. Powell, Vice President, Technical Support and Oversight, and other members of the licensee staff. The licensee acknowledged the issues presented. The inspectors asked the licensee whether any materials examined during the inspection should be considered proprietary. No proprietary information was identified. | |||
On December 14, 2010, the inspectors conducted a telephonic exit meeting with Mr. G. Hildebrant, Manager, Plant Protection, to verify that no changes to the licensee's emergency plan or implementing procedures requiring regulatory review according to the requirements of Inspection Procedure 71114.04 were submitted by the licensee between January and December 2010. | |||
On January 6, 2011, the inspector s presented the inspection results to Mr. E. Halpin, President and Chief Executive Officer, and other members of the licensee staff. | |||
The licensee acknowledged the issues presented. The inspector asked the licensee whether any materials examined during the inspection should be considered proprietary. No proprietary information was identified. | |||
{{a|4OA7}} | {{a|4OA7}} | ||
==4OA7 Licensee-Identified Violations== | ==4OA7 Licensee-Identified Violations== | ||
Using Manual Chapter 0609, Appendix H, dated May 6, 2004, the finding was determined to be of very low safety significance because the amount of air purged during the entire evolution was less than 100 percent of the volume of the containment building. The licensee submitted event report LER 05000499/2010 | The following violations of very low safety significance (Green) were identified by the licensee and are violations of NRC requirements which meet the criteria of Section 2.3.2 of the NRC Enforcement Policy, NUREG | ||
-1600, for being dispositioned as noncited violations. Technical Specification 3.3.2 requires, in part, that the engineered safety features actuation system instrumentation channels and interlocks shown in Table 3.3 | |||
-3 shall be operable. Action c of Technical Specification 3.3.2 states that with an engineered safety features actuation system instrumentation channel or interlock inoperable, take the action shown in Table 3.3 | |||
-3. Action 18(a) of Table 3.3 | |||
-3 requires , in part, that with less than the minimum channels operable requirement for automatic actuation logic or actuation relays, operation may continue provided the containment purge supply and exhaust valves are maintained closed. Contrary to the above requirements, on May 22, 2010, the South Texas Project Unit 2 continued operation without maintaining the containment purge valves closed while one channel of engineered safety features actuation system was inoperable. This violation was processed through "Phase 1 - Initial Screening and Characterization of Findings," of Manual Chapter 0609 , Attachment 0609.04, dated January 10, 2008, because the reactor was at power. The finding screened to a Phase 2 evaluation because the finding was associated with the containment purge system of a pressurized water reactor with a large dry containment. | |||
Using Manual Chapter 0609, Appendix H, dated May 6, 2004, the finding was determined to be of very low safety significance because the amount of air purged during the entire evolution was less than 100 percent of the volume of the containment building. The licensee submitted event report LER 05000499/2010 00 (See Section 4OA3) and entered this issue into their corrective action program as Condition Report 10-11730. The licensee's corrective actions included providing additional training to the operators and updating the conduct of operations and containment purge procedures | |||
. Title 10 of the Code of Federal Regulations, Section 50.54(q), requires | |||
, in part, that a licensee maintain and follow an emergency plan that meets the requirements of 50.47(b). Contrary to the above, between May 2 and May 15, 2010, the licensee did not follow the South Texas Project Electric Generating Station Emergency Plan, Revision 20-3. Specifically, the licensee failed to perform a routine silent test of the prompt notification system as required by emergency plan Section E.3, "Notification of the General Public" and NUREG | |||
-0654/FEMA Report 1, Appendix 3, "Means for Providing Prompt Alerting and Notification of Response Organizations and the Population," Section C.3(h), "Siren Testing Guidance," which requires silent system tests be performed every 2 weeks. This finding was more than minor because it affects the Facilities and Equipment (Alert Notification System Testing) attribute of the Emergency Preparedness Cornerstone objective. The licensee has entered this issue into their corrective action program as Condition Report 10-14117. The finding w as evaluated as having very low safety significance because it was a failure to comply with NRC requirements, was associated with a nonrisk | |||
-significant planning standard and d id not constitute a degraded planning standard function. | |||
=SUPPLEMENTAL INFORMATION= | =SUPPLEMENTAL INFORMATION= | ||
Line 248: | Line 737: | ||
===Licensee Personnel=== | ===Licensee Personnel=== | ||
: [[contact::J. Ashcraft]], Manager, Health Physics | : [[contact::J. Ashcraft]], Manager, Health Physics | ||
: [[contact::M. Berg]], Manager, Design Engineering | : [[contact::M. Berg]], Manager, Design Engineering | ||
: [[contact::C. Bowman]], General Manager, Nuclear Safety Assurance | : [[contact::C. Bowman]], General Manager | ||
: [[contact::J. Calvert]], Manager, Training | , Nuclear Safety Assurance | ||
: [[contact::D. Cobb]], STP Employee Concerns Program (EAP) Manager | : [[contact::J. Calvert]], Manager, Training | ||
: [[contact::R. Dunn Jr.]], Manager, Fuels and Analysis | : [[contact::D. Cobb]], STP Employee Concerns Program (EAP) Manager | ||
: [[contact::R. Dunn Jr.]], Manager, Fuels and Analysis | |||
: [[contact::J. Enoch]], Supervisor, Emergency Planning | : [[contact::J. Enoch]], Supervisor, Emergency Planning | ||
: [[contact::T. Frawley]], Manager, Operations | : [[contact::T. Frawley]], Manager, Operations | ||
: [[contact::R. Gangluff]], Manager, Chemistry, Environmental and Health Physics | : [[contact::R. Gangluff]], Manager, Chemistry, Environmental and Health Physics | ||
: [[contact::C. Grantom]], Manager, PRA | : [[contact::C. Grantom]], Manager, PRA | ||
: [[contact::E. Halpin]], President and Chief Executive Officer | : [[contact::E. Halpin]], President and Chief Executive Officer | ||
: [[contact::W. Harrison]], Manager, Licensing | : [[contact::W. Harrison]], Manager, Licensing | ||
G. Hildebrant | |||
: [[contact::G. Janak]], Manager, Operations Division, Unit 1 | , Manager, Plant Protection | ||
: [[contact::B. Jenewein]], Manager, Systems Engineering | : [[contact::G. Janak]], Manager, Operations | ||
: [[contact::J. Lovejoy]], Assistant Maintenance Manager | Division, Unit 1 | ||
: [[contact::N. Mayer]], Manager, Projects | : [[contact::B. Jenewein]], Manager, Systems Engineering | ||
: [[contact::A. McGalliard]], Manager, Performance Improvement | : [[contact::J. Lovejoy]], Assistant Maintenance Manager | ||
: [[contact::R. McNiel]], Manager, Maintenance Engineering | : [[contact::N. Mayer]], Manager, Projects | ||
: [[contact::J. Mertink]], Manager, Maintenance | : [[contact::A. McGalliard]], Manager, Performance Improvement | ||
: [[contact::J. Milliff]], Manager, Operations Division, Unit 2 | : [[contact::R. McNiel]], Manager, Maintenance Engineering | ||
: [[contact::C. Murry]], Manager, Outage and Major Projects | : [[contact::J. Mertink]], Manager, Maintenance | ||
: [[contact::J. Paul]], Engineer, Licensing Consultant | : [[contact::J. Milliff]], Manager, Operations Division, Unit 2 | ||
: [[contact::L. Peter]], Plant General Manager | : [[contact::C. Murry]], Manager, Outage and Major Projects | ||
: [[contact::J. Pierce]], Manager, Operations Training | : [[contact::J. Paul]], Engineer, Licensing Consultant | ||
: [[contact::G. Powell]], Vice President, Tech Support and Oversight | : [[contact::L. Peter]], Plant General Manager | ||
: [[contact::M. Reddix]], Manager, Security | : [[contact::J. Pierce]], Manager, Operations Training | ||
: [[contact::D. Rencurrel]], Senior Vice President, Units 1 and 2 | : [[contact::G. Powell]], Vice President, Tech Support and Oversight | ||
: [[contact::M. Ruvalcaba]], Manager, Testing and Programs | : [[contact::M. Reddix]], Manager, Security | ||
: [[contact::R. Savage]], Engineer, Licensing Staff Specialist | : [[contact::D. Rencurrel]], Senior Vice President, Units 1 and 2 | ||
: [[contact::M. Ruvalcaba]], Manager, Testing and Programs | |||
: [[contact::R. Savage]], Engineer, Licensing Staff Specialist | |||
: [[contact::M. Schaefer]], Manager, I&C Maintenance | : [[contact::M. Schaefer]], Manager, I&C Maintenance | ||
: [[contact::K. Taplett]], Senior Engineer, Licensing Staff | : [[contact::K. Taplett]], Senior Engineer, Licensing Staff | ||
: [[contact::D. Whiddon]], Supervisor, Quality | : [[contact::D. Whiddon]], Supervisor, Quality | ||
: [[contact::D. Zink]], Supervising Engineering Specialist | : [[contact::D. Zink]], Supervising Engineering Specialist | ||
Attachment | |||
Attachment | |||
==LIST OF ITEMS OPENED, CLOSED, AND DISCUSSED== | ==LIST OF ITEMS OPENED, CLOSED, AND DISCUSSED== | ||
===Opened and Closed=== | ===Opened and Closed=== | ||
: 05000498/2010005-01 | : 05000498/2010005 | ||
: 05000499/2010005-01 NCV Inadequate Design Review Removes Safety Injection Flush Line Valves from Locked Valve Program (Section 1R04) | -01 | ||
: 05000498/2010005-02 | : 05000499/2010005 | ||
: 05000499/2010005- | -01 NCV Inadequate Design Review Removes Safety Injection Flush | ||
: 05000499/2010005-03 NCV Failure to Follow Procedure Results in Protective Relay Trip of Residual Heat Removal Pump (Section 1R22) | Line Valves from Locked Valve Program (Section 1R04) | ||
: 05000498/2010005 | |||
-02 | |||
: 05000499/2010005 | |||
-0 2 NCV Failure to Install the Required Number of Smoke Detectors (4) in the Auxiliary Shutdown Room | |||
s (Section 1R05) | |||
: 05000499/2010005 | |||
-03 NCV Failure to Follow Procedure Results in Protective Relay Trip of Residual Heat Removal Pump (Section 1R22) | |||
===Closed=== | ===Closed=== | ||
: [[Closes LER::05000499/LER-2010-003]]-00 LER Containment Purge in Operation When Not Permitted by Technical Specifications (Section 4OA3) | : [[Closes LER::05000499/LER-2010-003]]-00 LER Containment Purge in Operation When Not Permitted by Technical Specifications | ||
: 05000498/2007007-08 | (Section 4OA3) | ||
: 05000498/2007007-08 | |||
: 05000499/2007007 | |||
-08 URI Unresolved Item Involving Combined Adverse Conditions not Considered in Fuel Oil Storage Tank Sizing | |||
(Section 4OA3) | |||
==LIST OF DOCUMENTS REVIEWED== | ==LIST OF DOCUMENTS REVIEWED== | ||
Section 1R | |||
: CONDITION REPORTS 10-2579 10-16664 10-17686 10-20369 10-20371 10-20388 10-22560 PROCEDURES NUMBER TITLE REVISION 0PGP03-ZV-0001 Severe Weather Plan | : 01: | ||
: Adverse Weather Protection | |||
: CONDITION REPORTS | |||
: 10-2579 10-16664 10-17686 10-20369 10-20371 10-20388 10-22560 PROCEDURES | |||
: NUMBER TITLE REVISION 0PGP03-ZV-0001 Severe Weather Plan | |||
: 0PGP03-ZV-0004 Freezing Weather Plan | |||
: 0POP01-ZO-0004 Extreme Cold Weather Guidelines | |||
: 0POP02-NK-0001 Freeze Protection/Heat Trace Operations | |||
: WORK AUTHORIZATION NUMBERS | |||
: 374378 | : 374378 | ||
: 374379 | : 374379 | ||
: 397957 | : 397957 | ||
: Attachment | : Attachment Section 1R | ||
: 04: | |||
: Equipment Alignment | |||
: CONDITION REPORTS 10-179 10-9149 10-14134 10-17308 10-18975 10-20369 10-20371 10-20725 DRAWINGS NUMBER TITLE REVISION 5Q159F00045 #1 Standby Diesel Generator Fuel Oil Storage & Transfer System 33 5Q159F22540 #1 Standby Diesel Jacket Water | : CONDITION REPORTS | ||
: 10-179 10-9149 10-14134 10-17308 10-18975 10-20369 10-20371 10-20725 DRAWINGS NUMBER TITLE REVISION 5Q159F00045 | |||
#1 Standby Diesel Generator Fuel Oil Storage & Transfer System 33 5Q159F22540 #1 | |||
: Standby Diesel Jacket Water | |||
: 5Q159F22542 #1 | |||
: Standby Diesel Lube Oil | |||
: 5R289F05038 #1 | |||
: Essential Cooling Water System Train 1A | |||
: 5V119V10001#2 | |||
: Piping and Instrumentation Diagram - HVAC Essential Chilled Water System | |||
: PROCEDURES | |||
: NUMBER TITLE REVISION 0POP02-AF-0001 Auxiliary Feedwater | |||
: 0POP02-CH-0001 Essential Chilled Water System | |||
: 0POP02-CH-0005 Essential Chiller Operation | |||
: 0POP02-DG-0001 Emergency Diesel Generator 11(21) | |||
: 0POP09-AN-0102 Annunicator Lampbox 1(2) | |||
- 102 Response Instructions | |||
: WORK AUTHORIZATION NUMBERS | |||
: 339336 | : 339336 | ||
: 357442 | : 357442 | ||
Line 315: | Line 846: | ||
: 408433 | : 408433 | ||
: 410688 | : 410688 | ||
: Attachment Section 1R | |||
: 05: | |||
: Fire Protection | |||
: CONDITION REPORTS | |||
: 10-21321 10-21670 10-23305 DRAWINGS NUMBER TITLE REVISION 9-W-01-9-E-0465#1 Mechanical and Electrical Auxiliary Building Fire Detection Plan Elevation 10' | |||
-0" 10 5-V-11-9-V-0050 HVAC Electrical Auxiliary Building Partial Plan Elevation 10'-0" 13 FIRE PREPLANS | |||
: NUMBER TITLE REVISION 0EAB07-FP-0071 Fire Preplan Electrical Auxiliary Building, Auxiliary Shutdown Area | |||
: 0EAB04-FP-0049 Fire Preplan Electrical Auxiliary Building Control Room HVAC Equipment Room, Train C | |||
: 0EAB03-FP-0039 Fire Preplan Electrical Auxiliary Building Control Room HVAC Equipment Room, Train B | |||
: 0EAB02-FP-0005 Fire Preplan Electrical Auxiliary Building Control Room HVAC Equipment Room, Train A | |||
: Section 1R | |||
: 06: | |||
: Flood Protection Measures | |||
: CALCULATIONS | |||
: NUMBER TITLE REVISION | |||
: NC 9707 Facility Response Analysis for E | |||
: AB Flooding and Spray Effects 2 MC6163 Penetration Seal Requirements for Protection Against HELBA and Flooding Effects | |||
: Attachment | : Attachment | ||
: PROCEDURES | |||
: NUMBER TITLE REVISION 0PGP03-ZA-0514 Controlled System or Barrier Impairment | |||
: | : MEG-101 Penetration Seals | ||
: MEG-101 Penetration Seals | |||
==Section 1R12: Maintenance Effectiveness== | ==Section 1R12: Maintenance Effectiveness== | ||
: CONDITION REPORTS 03-18095 06-7099 07-1258 07-7623 08-7568 08-15406 09-16648 09-17420 09-18999 09-20079 10-4446 10-7231 10-7663 10-10743 10-15484 10-17134 10-22918 10-22969 | : CONDITION REPORTS | ||
: MISCELLANEOUS TITLE System Health Report Safety Injection (SI), First Quarter 2009 through Second Quarter 2010 System Health Report 7300 System (BS), First Quarter 2009 through Third Quarter 2010 | : 03-18095 06-7099 07-1258 07-7623 08-7568 08-15406 09-16648 09-17420 09-18999 09-20079 10-4446 10-7231 10-7663 10-10743 10-15484 10-17134 10-22918 10-22969 | ||
: MISCELLANEOUS | |||
: TITLE System Health Report Safety Injection (SI), First Quarter 2009 through Second Quarter 2010 | |||
: System Health Report 7300 System (BS), First Quarter 2009 through Third Quarter 2010 | |||
==Section 1R13: Maintenance Risk Assessment and Emergent Work Controls== | ==Section 1R13: Maintenance Risk Assessment and Emergent Work Controls== | ||
: CONDITION REPORTS 09-14327 10-23832 10-23973 10-24032 10-24051 10-24085 10-24089 10-24455 10-25053 10-25309 | : CONDITION REPORTS | ||
: MISCELLANEOUS NUMBER TITLE REVISION 2149 Work Activity Risk Plan of Action Rod Control Power CAB 2AC 0 2154 Work Activity Risk Plan of Action Generator Stator Cooling Water Filter 11 | : 09-14327 10-23832 10-23973 10-24032 10-24051 10-24085 10-24089 10-24455 10-25053 10-25309 | ||
: PRA-10-037 TS 3.0.4.b Risk Assessment - Unit 2 AFWST Below TS Minimum from Mode 3 to Mode 2 to Mode 1 Risk Assessment | : MISCELLANEOUS | ||
: Attachment PROCEDURES NUMBER TITLE REVISION 0POP02-RC-0003 Filling and Venting the Reactor Coolant System 33 | : NUMBER TITLE REVISION 2149 Work Activity Risk Plan of Action Rod Control Power CAB 2AC 0 2154 Work Activity Risk Plan of Action Generator Stator Cooling Water Filter 11 | ||
: PRA-10-037 TS 3.0.4.b Risk Assessment | |||
- Unit 2 AFWST Below | |||
: TS Minimum from Mode 3 to Mode 2 to Mode 1 Risk Assessment | |||
: Attachment | |||
: PROCEDURES | |||
: NUMBER TITLE REVISION 0POP02-RC-0003 Filling and Venting the Reactor Coolant System 33 | |||
==Section 1R15: Operability Evaluations== | ==Section 1R15: Operability Evaluations== | ||
: CONDITION REPORTS 06-10048 09-14327 10-21988 10-24032 10-25308 10-25445 10-25446 10-25490 10-25822 MISCELLANEOUS NUMBER TITLE REVISION | : CONDITION REPORTS | ||
: South Texas Project Units 1 and 2 Dispersant Application Plan and Pilot Injection Program | : 06-10048 09-14327 10-21988 10-24032 10-25308 10-25445 10-25446 10-25490 10-25822 MISCELLANEOUS | ||
: NUMBER TITLE REVISION | |||
: South Texas Project Units 1 and 2 Dispersant Application Plan and Pilot Injection Program | |||
: CONDITION REPORTS 10-23832 | : 5R209F05020#1 | ||
: PROCEDURES NUMBER TITLE REVISION | : Piping and Instrumentation Component Cooling Water System 18 MC6007 CCW Surge Tank Volume and Levels | ||
: Conduct of Operations | : RC0036 Pipe Stress Analysis for "CC" & "WL" System from Anchor to Letdown HX 1A, Chiller 1A & Subcooler 1A | ||
: Attachment NUMBER TITLE REVISION 0PGP03-ZA-0091 Configuration Risk Management Program | : PROCEDURES | ||
: NUMBER TITLE REVISION 0PCP01-ZA-0038 Plant Chemistry Specifications | |||
: 0POP02-CF-0004 Operation of the TGB Polymer Dispersant Injection System 3 | |||
: Section 1R1 | |||
: 8: | |||
: Plant Modifications | |||
: CONDITION REPORTS | |||
: 10-23832 | |||
: PROCEDURES | |||
: NUMBER TITLE REVISION | |||
: Conduct of Operations | |||
: Attachment | |||
: NUMBER TITLE REVISION 0PGP03-ZA-0091 Configuration Risk Management Program | |||
: 0PGP03-ZO-0003 Temporary Modifications | |||
: 0POP01-ZO-0006 Risk Management Actions | |||
: WORK AUTHORIZATION NUMBER | |||
: S | |||
: 412745 | : 412745 | ||
: 412907 412927 | : 412907 412927 | ||
==Section 1R19: Postmaintenance Testing== | ==Section 1R19: Postmaintenance Testing== | ||
: CONDITION REPORTS 07-1936 10-18338 10-21988 10-22931 10-23037 10-23078 10-23125 10-23227 10-23408 10-23616 10-25200 10-25308 10-26117 10-26198 PROCEDURES NUMBER TITLE REVISION 0PMP05-CH-0003 York Chiller Inspection & Maintenance 300 Tons 6 0PMP07-AM-0012 QDPS | : CONDITION REPORTS | ||
: APC-A2 Removal from Service | : 07-1936 10-18338 10-21988 10-22931 10-23037 10-23078 10-23125 10-23227 10-23408 10-23616 10-25200 10-25308 10-26117 10-26198 PROCEDURES | ||
: VTD-B943-0001 Brookfield Industries, Inc. | : NUMBER TITLE REVISION 0PMP05-CH-0003 York Chiller Inspection & Maintenance 300 Tons 6 0PMP07-AM-0012 QDPS | ||
: APC-A2 Removal from Service | |||
: 0POP02-HE-0001 Electrical Auxiliary Building HVAC System | |||
: 0PSP03-HE-0001 Control Room Emergency Ventilation System | |||
: VTD-B943-0001 Brookfield Industries, Inc. NB | |||
-1000 Door Operator Manual 0 WORK AUTHORIZATION NUMBERS | |||
: 361571 | : 361571 | ||
: 390604 | : 390604 | ||
Line 369: | Line 941: | ||
==Section 1R20: Refueling and Other Outage Activities== | ==Section 1R20: Refueling and Other Outage Activities== | ||
: CONDITION REPORTS 09-14327 10-23832 10-23833 10-23973 10-24032 10-24051 10-24085 10-24089 10-24455 10-24555 10-24637 10-24641 10-25309 MISCELLANEOUS TITLE DATE Shutdown Risk Assessment Group Meeting Minutes November 12, 2010 PROCEDURES NUMBER TITLE REVISION 0PMP05-RC-0004 Reactor Coolant Pump Motor Removal, Inspection, and Replacement | : CONDITION REPORTS | ||
: 09-14327 10-23832 10-23833 10-23973 10-24032 10-24051 10-24085 10-24089 10-24455 10-24555 10-24637 10-24641 10-25309 MISCELLANEOUS | |||
: TITLE DATE Shutdown Risk Assessment Group Meeting Minutes November 12, 2010 | |||
: PROCEDURES | |||
: NUMBER TITLE REVISION 0PMP05-RC-0004 Reactor Coolant Pump Motor Removal, Inspection, and Replacement | |||
: 0POP02-RC-0003 Filling and Venting the Reactor Coolant System | |||
: 0POP03-ZG-0001 Plant Heatup | |||
: 0POP03-ZG-0007 Plant Cooldown | |||
: 0PSP03-RC-0006 Reactor Coolant Inventory | |||
==Section 1R22: Surveillance Testing== | ==Section 1R22: Surveillance Testing== | ||
: CONDITION REPORTS 10-17171 | : CONDITION REPORTS | ||
: PROCEDURES NUMBER TITLE REVISION 4C23NCS0001 Inservice Surveillance of Cont. Post-Tensioning System | : 10-17171 | ||
: Attachment NUMBER TITLE REVISION 0PSP03-AF-0007 Auxiliary Feedwater Pump 14(24) Inservice Test | : PROCEDURES | ||
: NUMBER TITLE REVISION 4C23NCS0001 | |||
: Inservice Surveillance of Cont. Post | |||
-Tensioning System | |||
: 0PMP04-AF-0003 Auxiliary Feedwater Turbine Trip Throttle Valve Maintenance | |||
: 0POP02-AF-0001 Auxiliary Feedwater | |||
: Attachment | |||
: NUMBER TITLE REVISION 0PSP03-AF-0007 Auxiliary Feedwater Pump 14(24) Inservice Test | |||
: 0PSP09-TD-0001 Containment Tendon Test / End Anchorage and Adjacent Concrete Inspection | |||
: WORK AUTHORIZATION NUMBERS | |||
: 366699 | : 366699 | ||
: 377310 | : 377310 | ||
Line 380: | Line 969: | ||
==Section 1EP1: Exercise Evaluation== | ==Section 1EP1: Exercise Evaluation== | ||
: CONDITION REPORTS 08-13217 08-18440 08-18805 08-18806 08-19621 09-00613 09-02685 09-02687 09-03080 09-09546 09-09548 09-10610 09-13771 09-14220 09-14557 09-15118 09-20088 09-20394 10-01590 10-01622 10-02789 10-02982 10-12478 10-12482 10-12976 10-14117 10-16550 10-16654 10-17643 10-17787 MISCELLANEOUS NUMBER TITLE REVISION/DATE | : CONDITION REPORTS | ||
: Evaluation Report: Drill | : 08-13217 08-18440 08-18805 08-18806 08-19621 09-00613 09-02685 09-02687 09-03080 09-09546 09-09548 09-10610 09-13771 09-14220 09-14557 09-15118 09-20088 09-20394 10-01590 10-01622 10-02789 10-02982 10-12478 10-12482 10-12976 10-14117 10-16550 10-16654 10-17643 10-17787 MISCELLANEOUS | ||
: NUMBER TITLE REVISION/DATE | |||
: Evaluation Report: Drill | : Evaluation Report: Drill May 6, 2008 | ||
: Evaluation Report: Drill June 18, 2008 | |||
: Evaluation Report: Drill | : Evaluation Report: Drill August 13, 2008 | ||
: Evaluation Report: Drill November 6, 2008 | |||
: Evaluation Report: Drill | : Evaluation Report: Drill December 1, 2008 | ||
: Evaluation Report: Drill December 4, 2008 | |||
: Evaluation Report: Drill | : Evaluation Report: Drill December 19, 2008 | ||
: Evaluation Report: Drill May 19, 2009 | |||
: Evaluation Report: Drill | : Evaluation Report: Drill June 17, 2009 | ||
: Attachment | |||
: Evaluation Report: Drill | : NUMBER TITLE REVISION/DATE | ||
: Evaluation Report: Drill August 12, 2009 | |||
: Evaluation Report: Drill | : Evaluation Report: Drill January 27,2010 | ||
: Evaluation Report: Drill May 26, 2010 | |||
: Evaluation Report: Drill | : Evaluation Report: Drill July 20, 2010 | ||
: Conduct of Operations (Chapter 2) | |||
: Attachment NUMBER TITLE REVISION/DATE | : Report 08-03 Quality Audit, Emergency Preparedness Report 09-01 Quality Audit, Emergency Response Division Report 10-01 Quality Audit, Emergency Response Division South Texas Project Electric Generating Station Emergency Plan | ||
: Evaluation Report: Drill | : 20-7 PROCEDURES | ||
: NUMBER TITLE REVISION 0ERP01-ZV-EF01 EOF Director | |||
: Evaluation Report: Drill | : 0ERP01-ZV-EF02 Deputy EOF Director 11 0ERP01-ZV-EF10 Offsite Field Team Supervisor | ||
: 0ERP01-ZV-IN01 Emergency Classification | |||
: Evaluation Report: Drill | : 0ERP01-ZV-IN02 Notifications to Offsite Agencies | ||
: 0ERP01-ZV-IN03 Emergency Response Organization Notification | |||
: Evaluation Report: Drill | : 0ERP01-ZV-IN07 Offsite Protective Action Recommendations | ||
: 0ERP01-ZV-SH01 Shift Manager | |||
: Conduct of Operations (Chapter 2) | : 0ERP01-ZV-TP01 Offsite Dose Calculations | ||
: 0ERP01-ZV-TS01 TSC Manager | |||
: 0ERP01-ZV-OS01 OSC Coordinator | |||
: 0ERP01-ZV-OS03 Radiological Coordinator | |||
: Attachment NUMBER TITLE REVISION 0ERP01-ZV-OS06 Emergency Teams | : 0ERP01-ZV-OS04 Security Coordinator | ||
: Attachment | |||
: NUMBER TITLE REVISION 0ERP01-ZV-OS06 Emergency Teams | |||
: 0PCP09-ZR-0005 Determination of Primary to Secondary Leak Rate | |||
: 0PGP03-ZA-0010 Performing and Verifying Station Activities | |||
: 0PGP05-ZV-0001 Emergency Response Exercises and Drills | |||
: 0PGP05-ZV-0003 Emergency Response Organization | |||
: 0PGP05-ZV-0006 Emergency Notification and Response System | |||
: 0PGP06-ZV-0011 Emergency Communications | |||
: 0POP01-ZA-018 Emergency Operating Procedure User's Guide | |||
: 0POP05-E0-E010 Loss of Reactor or Secondary Coolant | |||
: 0POP05-E0-E030 Steam Generator Tube Rupture | |||
: 0POP05-E 0-E020 Faulted Steam Generator Isolation | |||
: 0POP05-E 0-EC31 Steam Generator Tube Rupture with Loss of Reactor Coolant - Sub-cooled Recovery Desired | |||
==Section 4OA1: Performance Indicator Verification== | ==Section 4OA1: Performance Indicator Verification== | ||
: CONDITION REPORTS 10-124 10-17990 10-21452 10-9179 | : CONDITION REPORTS | ||
: MISCELLANEOUS TITLE REVISION Mitigating System Performance Index (MSPI) Bases Document | : 10-124 10-17990 10-21452 10-9179 | ||
: SEG-0007 Mitigating System Performance Indicator Collection and Processing of Data | : MISCELLANEOUS | ||
: Attachment NUMBER TITLE REVISION 0PGP05-ZV-0007 Prompt Notification System | : TITLE REVISION Mitigating System Performance Index (MSPI) Bases Document | ||
: PROCEDURES | |||
: NUMBER TITLE REVISION | |||
: SEG-0007 Mitigating System Performance Indicator Collection and Processing of Data | |||
: 0PGP05-ZN-0007 Preparation and Submittal of NRC Performance Indicators | |||
: Attachment | |||
: NUMBER TITLE REVISION 0PGP05-ZV-0007 Prompt Notification System | |||
: 0PGP05-ZV-0013 Performance Indicator Tracking Guide | |||
: 0PGP05-ZV-0016 Prompt Notification System Implementing Procedure 7 RMG1020 Risk Management Guidelines MSPI User's Manual | |||
==Section 4OA2: Identification and Resolution of Problems== | ==Section 4OA2: Identification and Resolution of Problems== | ||
: CONDITION REPORTS 10-8612 10-10815 10-11513 10-14822 10-20052 10-21988 10-23078 10-23616 10-25175 10-25200 10-25490 PROCEDURES NUMBER TITLE REVISION 0PMP07-AM-0012 QDPS | : CONDITION REPORTS | ||
: APC-A2 Removal from Service | : 10-8612 10-10815 10-11513 10-14822 10-20052 10-21988 10-23078 10-23616 10-25175 10-25200 10-25490 PROCEDURES | ||
: | : NUMBER TITLE REVISION 0PMP07-AM-0012 QDPS | ||
: APC-A2 Removal from Service | |||
: WORK AUTHORIZATION NUMBERS | |||
: 2133 | |||
: 413795 413944 | : 413795 413944 | ||
==Section 4OA3: Event Follow-Up | ==Section 4OA3: == | ||
: | : Event Follow | ||
: Attachment CONDITION REPORTS 10-11730 10-23832 10-23847 10-24085 10-26931 | -Up CALCULATIONS | ||
: NUMBER TITLE REVISION EC05100 Standby Diesel Generator Transient Response Model | |||
: MC06256 Sizing of Standby Diesel Generator Fuel Oil Storage Tank 5 MC06256 Sizing of Standby Diesel Generator Fuel Oil Storage Tank 4 MC06038 Standby Diesel Generator Fuel Oil Storage Tank Level Setting Calculation | |||
: MC06038 Standby Diesel Generator Fuel Oil Storage Tank Level Setting Calculation | |||
: Attachment | |||
: CONDITION REPORTS | |||
: 10-11730 10-23832 10-23847 10-24085 10-26931 | |||
}} | }} |
Revision as of 22:46, 14 August 2018
ML110250753 | |
Person / Time | |
---|---|
Site: | South Texas |
Issue date: | 01/24/2011 |
From: | Walker W C NRC/RGN-IV/DRP/RPB-A |
To: | Halpin E D South Texas |
References | |
IR-10-005 | |
Download: ML110250753 (52) | |
Text
January 24, 2010
Mr. Edward D. Halpin, President and Chief Executive Officer STP Nuclear Operating Company P.O. Box 289 Wadsworth, TX 77483 Subject: SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION
- NRC INTEGRATED INSPECTION REPORT 05000 498/20 10 00 5 AND 05000499/20 1 000 5
Dear Mr. Halpin:
On December 31, 2010, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at your South Texas Project Electric Generating Station, Units 1 and 2, facility. The enclosed integrated inspection report documents the inspection findings, which were discussed on January 6, 2011, with you and other members of your staff.
The inspections examined activities conducted under your license as they relate to safety and compliance with the Commission's 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, one self-revealing and two NRC identified findings were evaluated under the significance determination process as having very low safety significance (Green). The NRC has determined that violations are associated with these findings. Additionally, two licens ee-identified violations, which were determined to be of very low safety significance, are listed in this report. However, because of the very low safety significance and because they were entered into your corrective action program, the NRC is treating these finding s as noncited violations, consistent with Section 2.3.2 of the NRC Enforcement Policy.
If you contest the se violations or the significance of the noncited violations, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, D.C.
20555-0001, with copies to the Regional Administrator, U.S.
Nuclear Regulatory Commission, Region IV, 612 E. Lamar Blvd, Suite 400, Arlington, Texas, 76011
-4125; the Director, Office of Enforcement, U.S. Nuclear Regulatory Commission, Washington, D.C. 20555
-0001; and the NRC Resident Inspector at the facility.
In addition, if you disagree with the crosscutting aspect assigned to 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 IV, and the NRC Resident Inspector at the facility
. U N I T E D S T A T E S N U C L E A R R E G U L A T O R Y C O M M I S S I O N R E G I O N I V 6 12 EAST LAMAR BLVD
, S U I T E 4 0 0 A R L I N G T O N , T E X A S 7 6 0 1 1-4125 STP Nuclear Operating Company In accordance with 10 CFR 2.390 of the NRC's
"Rules of Practice," a copy of this letter, its enclosure, and your response, will be made available electronically for public inspection in the NRC Public Document Room or from the NRC
's document system (ADAMS), accessible from the NRC Web site at http://www.nrc.gov/reading
-rm/adams.html. To the extent possible, your response should not include any personal privacy or proprietary information so that it can be made available to the public without redaction.
Sincerely,/RA/ Wayne Walker, Chief Project Branch A Division of Reactor Projects Dockets: 50
-498 50-499 Licenses: NPF
-76 NPF-80
Enclosure:
NRC Inspection Report 05000 498/20 1 0 00 5 and 05000 499/20 10 00 5
w/Attachment:
Supplemental Information cc w/
Enclosure:
Kevin Richards, Senior Vice President and Assistant to CEO STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 David W. Rencurrel Senior Vice President Units 1 and 2 STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 Louis Peter, Plant General Manager STP Nuclear Operating Company South Texas Project
P.O. Box 289 Wadsworth, TX 77483
STP Nuclear Operating Company Tim Powell, Vice President, Engineering STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 A. W. Harrison, Manager, Licensing STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 Charles T. Bowman, General Manager, Oversight STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 Marilyn Kistler Senior Staff Specialist, Licensing STP Nuclear Operating Company South Texas Project P.O. Box 289 Wadsworth, TX 77483 Cheryl Mele City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704 J. J. Nesrsta/R. K. Temple/
Ed Alercon/Kevin Pollo
City Public Service P.O. Box 1771 San Antonio, TX 78296 A. H. Gutterman, Esq. Morgan, Lewis & Bockius LLP 1111 Pennsylvania Avenue, NW Washington, DC 20004
STP Nuclear Operating Company Richard A. Ratliff, P.E., L.M.P.
Radiation Safety Licensing Branch Manager Division for Regulatory Services Texas Department of State Health Mail Code 2385 P.O. Box 149347 Austin, TX 78714
-9347 Brian Almon Public Utility Commission of Texas P.O. Box 13326 Austin, TX 78711
-3326 Environmental and Natural Resources Policy Director, Office of the Governor P.O. Box 1242 8 Austin, TX 78711
-3189 Mr. Nate McDonald Judge , Matagorda County Matagorda County Courthouse
1700 Seventh Street Bay City, TX 77414 Anthony P. Jones, Chief Boiler Inspector Texas Department of Licensing and Regulation Boiler Division E.O. Thompson State Office Building P.O. Box 12157 Austin, TX 78711 Susan M. Jablonski Office of Permitting, Remediation and Registration Texas Commission on Environmental Quality MC-122 P.O. Box 13087 Austin, TX 78711
-3087 Ted Enos 4200 South Hulen, Suite 422
Fort Worth, TX 76109 Kevin Howell/Catherine Callaway/Jim von Suskil NRG Energy, Inc.
1301 McKinney, Suite 2300 Houston, TX 77010
STP Nuclear Operating Company Peter G. Nemeth Crain, Caton, & James, P.C.
P.O. Box 289 Mail Code: N5005 Wadsworth, TX 77483 Chief, Technological Hazards Branch FEMA Region VI 800 North Loop 288 Federal Regional Center Denton, TX 7620 1-3698 Chairperson Radiological Assistance Committee FEMA Region VI 800 North Loop 288 Federal Regional Center Denton, TX 76201
-3698 C. Kierksey City of Austin Electric Utility Department 721 Barton Springs Road Austin, TX 78704
STP Nuclear Operating Company Electronic distribution by RIV:
Regional Administrator (Elmo.Collins@nrc.gov)
Deputy Regional Administrator (Art.Howell@nrc.gov) DRP Director (Kriss.Kennedy@nrc.gov)
DRP Deputy Director (Troy.Pruett@nrc.gov) DRS Director (Anton.Vegel@nrc.gov) Senior Resident Inspector (John.Dixon@nrc.gov
) Resident Inspector (Binesh.Tharakan@nrc.gov)
Branch Chief, DRP/A (Wayne.Walker@nrc.gov) Senior Project Engineer, DRP/A (David.Proulx@nrc.gov
) STP Administrative Assistant (Lynn.Wright@nrc.gov)
Project Engineer, DRP/A (Laura.Micewski@nrc.gov)
Public Affairs Officer (Victor.Dricks@nrc.gov
) Public Affairs Officer (Lara.Uselding@nrc.gov
) Project Manager (Mohan.Thadani@nrc.gov)
Branch Chief, DRS/TSB (Michael.Hay@nrc.gov)
RITS Coordinator (Marisa.Herrera@nrc.gov
) Regional Counsel (Karla.Fuller@nrc.gov)
Congressional Affairs Officer (Jenny.Weil@nrc.gov
) Region IV RSLO (Bill.Maier@nrc.gov
) NSIR/DPR/EP (Eric.Schrader@nrc.gov
) OEMail Resource ROPreports OEDO RIV Coordinator (James.Tapp@nrc.gov) DRS/TSB STA (Dale.Powers@nrc.gov
) R:\REACTORS\STP\20 1 0\STP20 10 0 0 5-RP-JLD.doc x SUNSI Rev Compl.
Yes No ADAMS Yes No Reviewer Initials WW Publicly Avail Yes No Sensitive Yes No Sens. Type Initials WW RI:DRP/A SRI:DRP/A SPE:DRP/PBA C:DRS/PSB2 C:DRS/OB BKTharakan JLDixon DLProulx GEWerner MSHaire /RA/T-WWalker /RA/T-WWalker /RA/ /RA/ /RA/GApger for 1/10/11 1/10/11 1/11/11 1/18/11 1/18/11 C:DRS/PSB1 C:DRS/EB1 C:DRS/EB2 C:DRS/TSB C:DRP/PBA MPShannon TRFarnholtz NFO'Keefe MCHay WCWalker /RA/ /RA/ /RA/ /RA/ /RA/ 1/18/11 1/14/11 1/18/11 1/18/11 1/21/11 OFFICIAL RECORD COPY T=Telephone E=E
-mail F=Fax Enclosure U.S. NUCLEAR REGULATORY COMMISSION REGION IV Docket: 05000498, 05000499 License: NPF-76, NPF-80 Report: 05000 498/20 1 00 0 5 and 05000499/20 1 000 5 Licensee: STP Nuclear Operating Company Facility: South Texas Project Electric Generating Station, Units 1 and 2 Location: FM521 - 8 miles west of Wadsworth Wadsworth, Texas 77483 Dates: October 1 through December 31, 20 1 0 Inspectors:
J. Dixon, Senior Resident Inspector P. Elkmann, Senior Emergency Preparedness Inspector A. Fairbanks, Reactor Inspector G. Guerra, CHP, Emergency Preparedness Inspector S. Hedger, Operations Engineer J. Kramer, Senior Resident Inspector, Comanche Peak B. Tharakan, CHP, Resident Inspector Accompanied by: C. Denis se n, Nuclear Safety Professional Development Program L. Micewski, Project Engineer Approved By:
Wayne Walker, Chief, Project Branch A Division of Reactor Projects Enclosure
SUMMARY OF FINDINGS
IR 05000 498/20 1 00 0 5 , 05000 499/20 1 00 0 5; 10/01/2010
- 12/31/2010
- South Texas Project Electric Generating Station, Units 1 and 2
, Integrated Resident and Regional Report;
Equipment Alignment
- Fire Protection
- Surveillance Testing. The report covered a 3
-month period of inspection by resident inspectors and announced baseline inspections by regional based inspectors. Three Green noncited violations of very low safety significance were identified. The significance of most findings is indicated by their color (Green, White, Yellow, or Red) using Inspection Manual Chapter 0609, "Significance Determination Process." The crosscutting aspect is determined using Inspection Manual Chapter 0310, "Components within the Cross Cutting Areas."
Findings for which the significance determination process 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 4, dated December 2006.
A. NRC-Identified Findings and Self-Revealing Findings
Cornerstone: Mitigating Systems
- Green.
On October 21, 2010, the inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criteria III, "Design Control," for the failure to properly ensure that design standards were correctly translated into drawings
, procedures
, and instructions. Specifically, the failure to ensure that the safety injection flush line valves were tracked in accordance with the locked valve program. The inspectors questioned the licensee about the lack of a lock on these isolation valv es , because these valves are a single failure away from reducing the amount of flow that would be available for core cooling in the event of a safety injection.
The licensee performed an engineering evaluation as part of Condition Report 10-22911 and concluded that the original 1993 evaluation was not adequately performed and that the valves are currently operable bu t nonconforming since they were not in the locked valve program. The licensee is updating their locked valve program to include the safety injection flush line valves as locked valves.
The finding was more than minor because it was associated with the Mitigating Systems Cornerstone attributes of Design Control and Configuration Control and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. If one of the valves was out of position
, it could have resulted in approximately a n 11 percent reduction in safety injection pump flow.
The inspectors performed the significance determination using NRC Inspection Manual 0609, Attachment 0609.04, "Phase 1 - Initial Screening and Characterization of Findings," dated January 10, 2008, because it affected the Mitigating Systems Cornerstone while the plant was at power. The finding was determined to be of very low safety significance because it was not a design or qualification deficiency
- it did not result in the loss of a system safety function
- it did not represent the loss of a single train for greater than technical specification allowed outage time
- it did not represent a loss of one or more nontechnical specification risk-significant equipment for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />
- and it did not screen as potentially risk significant due to seismic, flooding, or severe weather. This finding did not have crosscutting aspects because the design modification which removed the valves from the locked valve program was performed in 1993 (Section 1R04).
- Green.
The inspectors identified a noncited violation of license condition 2.E, Fire Protection Program, for the failure to install the required number of smoke detectors (four) in the auxiliary shutdown room per the National Fire Protection Association Standard 72E-1978 on automatic fire detection. On October 5, 2010, during a quarterly fire inspection walkdown of the auxiliary shutdown room, the inspectors identified that the room only had three smoke detectors. The inspectors questioned whether three smoke detectors were sufficient for the size of the room (950 square feet). After further evaluation, the licensee concluded that an additional smoke detector needed to be installed. The licensee's corrective action is to install another smoke detector in each unit's auxiliary shutdown room.
The finding was more than minor because it was associated with the Mitigating Systems Cornerstone attribute of Design Control and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences because a fire may not be detected in time to prevent damage to the auxiliary shutdown panel rendering it unavailable or unreliable. The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609, Appendix F, dated February 28, 2005, because the finding affected fire protection defense-in-depth strategies, as described in NRC Inspection Manual Chapter 0609, Attachment 0609.04, Table 3b, "Phase 1 - Initial Screening and Characterization of Findings," dated January 10, 2008. The finding was assigned to the fixed fire protection systems category with a degradation rating of moderate because the room was missing 25 percent of the required smoke detection equipment. The finding was determined to be of very low safety significance because the delta-core damage frequency of 2.34E
-7 was less than the 1.0E
-5 value in Table 1.4.3, Phase 1 Quantitative Screening Criteria, of NRC Inspection Manual Chapter 0609 , Appendix F. This finding did not have crosscutting aspects because the condition existed since initial plant start up (Section 1R05).
- Green.
On October 17, 2010, the inspectors reviewed a self-revealing noncited violation of 10 CFR Part 50, Appendix B, Criteria V, "Instructions, Procedures, and Drawings," for the failure to follow Procedure 0PSP03
-RH-0003, "Residual Heat Removal Pump 1C(2C) Inservice Test," Revision 16.
The procedure directs the operator to establish the proper lineup for the test in step 5.2.2 and is followed by a table with various valves and breakers to be aligned by one individual and then verified by a second individual. This table lists mini flow isolation valve MOV-0067C as being required to be open. The first operator failed to perform an adequate self-check to ensure that he was following the procedure and the second operator also failed to perform an adequate self-check to ensure that the valve was in the correct position prior to starting the pump. Consequently
, when the first operator started the pump
, it tripped on low flow approximately seconds later. The shift manager then refocused the control room operators
, ensured that everyone was engaged
, re-performed the procedure , and successfully completed the surveillance test. Corrective actions that the licensee implemented includ ed remediating the individuals involved on the use of human performance tools and revising the surveillance test procedures to list the mini flow isolation valves as a separate stand alone step.
The finding was more than minor because it affected the Mitigating Systems Cornerstone attributes of Procedure Quality and Human Performance and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences.
This deficiency directly challenged the residual heat removal system by relying on the low flow trip to secure the pump before pump damage occur r ed. The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609, Attachment 0609.04, "Phase 1
- Initial Screening and Characterization of Findings," dated January 10, 2008, because it affected the Mitigating Systems Cornerstone while the plant was at power. The finding was determined to be of very low safety significance because it was not a design or qualification deficiency
- it did not result in the loss of a system safety function; it did not represent the loss of a single train for greater than technical specification allowed outage time
- it did not represent a loss of one or more nontechnical specification risk-significant equipment for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />
- and it did not screen as potentially risk significant due to seismic, flooding, or severe weather. In addition, this finding had human performance crosscutting aspects associated with work practices in that the licensee did not communicate human error prevention techniques, such as self checking, commensurate with the risk H.4(a)(Section 1R22).
B. Licensee-Identified Violations
Violations of very low safety significance, which were identified by the licensee, have been reviewed by the inspectors. Corrective actions taken or planned by the licensee have been entered into the licensee's corrective action program. These violations and corrective action tracking numbers (condition report numbers) are listed in Section 4OA7.
REPORT DETAILS
Summary of Plant Status
Unit 1 began the inspection period at 100 percent rated thermal power and essentially remained there for the remainder of the inspection period.
Unit 2 began the inspection period at 100 percent rated thermal power and remained there until November 4, 2010, when the unit automatically tripped offline due to an electrical fault in the startup steam generator feedwater pump 24 supply breaker that resulted in the reactor protection system sensing a reactor coolant pump undervoltage condition.
Following forced Outage 2F1001
, the unit was restarted and went critical on November 25, 2010
, achieved 100 percent rated thermal power on November 27, 2010, and essentially remained there for the remainder of the inspection period.
REACTOR SAFETY
Cornerstones: Initiating Events, Mitigating Systems, Barrier Integrity, and Emergency Preparedness
1R01 Adverse Weather Protection
Readiness for Seasonal Extreme Weather Conditions a. The inspectors performed a review of the adverse weather procedures for seasonal extremes (e.g., extreme high temperatures, extreme low temperatures, or hurricane season preparations). The inspectors verified that weather
-related equipment deficiencies identified during the previous year were corrected prior to the onset of seasonal extremes; and evaluated the implementation of the adverse weather preparation procedures and compensatory measures for the affected conditions before the onset of, and during, the adverse weather conditions
. Inspection Scope During the inspection, the inspectors focused on plant-specific design features and the procedures used by plant personnel to mitigate or respond to adverse weather conditions. Additionally, the inspectors reviewed the UFSAR and performance requirements for systems selected for inspection, and verified that operator actions were appropriate as specified by plant-specific procedures. Specific documents reviewed during this inspection are listed in the attachment. The inspectors also reviewed corrective action program items to verify that plant personnel were identifying adverse weather issues at an appropriate threshold and entering them into their corrective action program in accordance with station corrective action procedures.
The inspectors' reviews focused specifically on the following plant systems:
November 9, 2010, Units 1 and 2, essential cooling water, auxiliary feedwater, and standby diesel generator systems These activities constitute completion of one readiness for seasonal adverse weather sample as defined in Inspection Procedure 71111.01-05. b. No findings were identified.
Findings
1R04 Equipment Alignments
.1 Partial Walkdown
a. The inspectors performed partial system walkdowns of the following risk
-significant systems: Inspection Scope October 21, 2010, Unit 2, safety injection system train A October 26, 2010, Unit 2, essential chilled water system train C December 20, 2010, Unit 1, auxiliary feedwater system train B The inspectors selected these systems based on their risk significance relative to the reactor safety cornerstones at the time they were inspected. The inspectors attempted to identify any discrepancies that could affect the function of the system, and, therefore, potentially increase risk. The inspectors reviewed applicable operating procedures, system diagrams, UFSAR, technical specification requirements, administrative technical specification s, outstanding work orders, condition reports, and the impact of ongoing work activities on redundant trains of equipment in order to identify conditions that could have rendered the systems incapable of performing their intended functions. The inspectors also inspected accessible portions of the systems to verify system components and support equipment were aligned correctly and operable. The inspectors examined the material condition of the components and observed operating parameters of equipment to verify that there were no obvious deficiencies. The inspectors also verified that the licensee had properly identified and resolved equipment alignment problems that could cause initiating events or impact the capability of mitigating systems or barriers and entered them into the corrective action program with the appropriate significance characterization. Specific documents reviewed during this inspection are listed in the attachment.
These activities constitute completion of three partial system walkdown sample s as defined in Inspection Procedure 71111.04-05. b.
Introduction.
The inspectors identified a Green noncited violation of 10 CFR Part 50, Appendix B, Criteria III, "Design Control," for the failure to properly ensure that design standards were correctly translated into drawings
, procedures
, and instructions. Specifically
, the failure to ensure that the safety injection flush line valves were tracked in accordance with the locked valve program.
Findings
Description.
On October 21, 2010, during a safety injection system walkdown, the inspectors identified that the safety injection flush lines , 2-inch branch lines that tap off the main safety injection piping at the discharge of the safety injection pumps, had isolation valves that were not locked in place. The inspectors questioned the licensee about the lack of a lock on these isolation valves because these valves are a single failure away from reducing the amount of flow that would be available for core cooling in the event of a safety injection. The licensee determined that
, in 1 993 , the engineering department performed an unreviewed safety question evaluation to remove valves in various systems from the locked valve program. The purpose of the review was to reduce the number of valves in the program, thereby reducing the burden on the operations department. The engineering department focused on the two key attributes of containment integrity and single failure criteria.
As a result of this review
, the engineering department recommended that several dozen valves be removed from the locked valve program because their removal would not impact the containment integrity or single failure criteria requirements. However, as part of a question and response to the plant license (UFSAR Question and Response 440.44N), it states "-the vent and drain lines which may contain recirculation fluid are provided with a locked closed valve-" This question and response identified that the 2-inch safety injection flush line valves were to be locked closed valves. The 1993 evaluation to reduce the number of locked closed valves only looked at the safety injection flush line valves from the requirements of containment integrity as required by general design criteria 57, but did not evaluate the single failure criteria
. The original 1993 evaluation lacked adequate justification and documentation for including the safety injection flush line valve s. The licensee performed another engineering evaluation as part of Condition Report 10-22911 and concluded that the original 1993 evaluation was not adequately performed for the safety injection flush line valve s to be removed from the locked valve program and that the valves are currently operable but nonconforming
, since they are not in the locked valve program. The licensee is updating their locked valve program to include the safety injection flush line valves as locked valves.
Analysis.
The failure to perform an adequate design review to address the design requirement for the safety injection flush line valves to remain in the locked valve program was a performance deficiency. The finding was more than minor because it was associated with the Mitigating Systems Cornerstone attributes of Design Control and Configuration Control and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. If one of the valves was out of position
, it could have resulted in approximately a n 11 percent reduction in safety injection pump flow. The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609, Attachment 0609.04, "Phase 1
- Initial Screening and Characterization of Findings," dated January 10, 2008, because it affected the Mitigating Systems Cornerstone while the plant was at power. The finding was determined to be of very low safety significance (Green) because it was not a design or qualification deficiency
- it did not result in the loss of a system safety function
- it did not represent the loss of a single train for greater than technical specification allowed outage time
- it did not represent a loss of one or more nontechnical specification risk
-significant equipment for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; and it did not screen as potentially risk significant due to seismic, flooding, or severe weather. This finding did not have crosscutting aspects because the design modification which removed the valves from the locked valve program was performed in 1993.
Enforcement.
Title 10 CFR Part 50, Appendix B, Criteria III, "Design Control," requires, in part, that measures shall be established to assure that applicable regulatory requirements and design basis are correctly translated into specifications, drawings, procedures, and instructions. Contrary to this, from 1993 until December 2010
, the licensee did not have an adequate evaluation to assure that the design basis was correctly translated into specifications, drawings, procedures, and instructions for the safety injection flush line valves to be included and controlled by the locked valve program to ensure operability. The 1993 unreviewed safety question evaluation did not adequately address the design basis for the safety injection flush line valves and incorrectly removed the valves from the locked valve program. The licensee's immediate corrective actions included verif y i ng the valves were in the correct position and also performing an extent of condition review. They found no other valves that should be included in the locked valve program. Since this violation was of very low safety significance and was documented in the licensee's corrective action program as Condition Report 10-22911, it is being treated as a noncited violation consistent with Section 2.3.2.a of the NRC Enforcement Policy: NCV 05000498/2010005
-01 and 05000499/2010005
-01, "Inadequate Design Review Removes Safety Injection Flush Line Valves from Locked Valve Program."
.2 Complete Walkdown
a. On November 18, 2010, the inspectors performed a complete system alignment inspection of the Unit 1 train A standby diesel generator to verify the functional capability of the system. The inspectors selected this system because it was considered both safety significant and ri sk significant in the licensee's probabilistic risk assessment. The inspectors inspected the system to review mechanical and electrical equipment lineups, electrical power availability, system pressure and temperature indications, as appropriate, component labeling, component lubrication, component and equipment cooling, hangers and supports, operability of support systems, and to ensure that ancillary equipment or debris did not interfere with equipment operation. The inspectors reviewed a sample of past and outstanding work orders to determine whether any deficiencies significantly affected the system function. In addition, the inspectors reviewed the corrective action program database to ensure that system equipment-alignment problems were being identified and appropriately resolved. Specific documents reviewed during this inspection are listed in the attachment.
Inspection Scope These activities constitute completion of one complete system walkdown sample as defined in Inspection Procedure 71111.04-05. b. No findings were identified.
Findings
R05 Fire Protection
Quarterly Fire Inspection Tours a. The inspectors conducted fire protection walkdowns that were focused on availability, accessibility, and the condition of firefighting equipment in the following risk
-significant plant areas:
Inspection Scope October 5, 2010, Unit 1, auxiliary shutdown panel room, Fire Zone Z071 October 5, 2010, Unit 2, auxiliary shutdown panel room, Fire Zone Z071 October 27, 2010, Unit 2, control room heating, ventilation, and air conditioning equipment room train A, Fire Z one Z005 October 27, 2010, Unit 2, control room heating, ventilation, and air conditioning equipment room train B, Fire Z one Z039 October 27, 2010, Unit 2, control room heating, ventilation, and air conditioning equipment room train C, Fire Z one Z049 The inspectors reviewed areas to assess if licensee personnel had implemented a fire protection program that adequately controlled combustibles and ignition sources within the plant; effectively maintained fire detection and suppression capability; maintained passive fire protection features in good material condition; and had implemented adequate compensatory measures for out
-of-service, degraded or inoperable fire protection equipment, systems, or features, in accordance with the licensee's fire plan. The inspectors selected fire areas based on their overall contribution to internal fire risk as documented in the plant's Individual Plant Examination of External Events with later additional insights, their potential to affect equipment that could initiate or mitigate a plant transient, or their impact on the plant's ability to respond to a security event. Using the documents listed in the attachment, the inspectors verified that fire hoses and extinguishers were in their designated locations and available for immediate use; that fire detectors and sprinklers were unobstructed
- that transient material loading was within the analyzed limits; and fire doors, dampers, and penetration seals appeared to be in satisfactory condition. The inspectors also verified that minor issues identified during the inspection were entered into the licensee's corrective action program
. Specific documents reviewed during this inspection are listed in the attachment.
These activities constitute completion of five quarterly fire protection inspection sample s as defined in Inspection Procedure 71111.05-05. b. Introduction
. The inspectors identified a Green noncited violation of license condition 2.E, Fire Protection Program, for the failure to install the required number of Findings smoke detectors (four) in the auxiliary shutdown room per the National Fire Protection Association standard on automatic fire detection, NFPA 72E-1978. Description
. On October 5, 2010, during a quarterly fire inspection walkdown of the auxiliary shutdown room, the inspector s identified that the room, approximately 950 square feet in size, only had three smoke detectors. The inspector s notified the licensee that the number of detectors may not meet the requirements of the National Fire Protection Association standard on automatic fire detectors, NFPA 72E-1978, which the licensee is committed to following in their fire hazards analysis.
The inspector s requested the licensee further evaluate whether three smoke detectors met the standard. The licensee performed a calculation using NFPA 72E
-1978 guidance and determined that the number of smoke detectors required to be installed in the auxiliary shutdown room was more than three and thus needed a fourth smoke detector. The licensee acknowledged this condition had existed in both Unit 1 and Unit 2 auxiliary shutdown rooms since initial construction of the buildings and installation of the smoke detectors. The licensee initiated a condition report to install a fourth detector in each unit's auxiliary shutdown room.
Analysis.
The failure to install four smoke detectors as required by the standard was a performance deficiency. The finding was more than minor because it was associated with the Mitigating Systems cornerstone attribute of Design Control and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences because a fire may not be detected in time to prevent damage to the auxiliary shutdown panel rendering it unavailable or unreliable.
The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609, Appendix F, dated February 28, 2005, because the finding affected fire protection defense
-in-depth strategies, as described in NRC Inspection Manual Chapter 0609, Attachment 0609.04, Table 3b, "Phase 1
- Initial Screening and Characterization of Findings," dated January 10, 2008. The finding was assigned a finding category of fixed fire protection systems and a degradation rating of moderate because the room was missing 25 percent of the required smoke detection equipment. The finding was assigned a duration factor of 1.0 because the condition had existed for greater than 30 days and the fire frequency for the area is 2.34E
-7. The finding was determined to be of very low safety significance (Green) because the delta
-core damage frequency of 2.34E
-7 was less than the 1.0E
-5 value in Table 1.4.3, Phase 1 Quantitative Screening Criteria, of NRC Inspection Manual Chapter 0609 , Appendix F.
The finding did not have crosscutting aspects because the condition existed since initial plant start up of Units 1 and 2 in 1988 and 1989, respectively.
Enforcement
. South Texas Project Nuclear Operating Company
, Units 1 and 2 license condition 2
.E requires, in part, that the licensee implement and maintain in effect all provisions of the Fire Protection Program as described in the Fire Hazards Analysis Report. The Fire Hazards Analysis Report states
, in par t , that the licensee is committed to implementing the requirements of National Fire Protection Association standard for automatic fire detection, NFPA 72E-1978. The NFPA 72E-1978 standard requires four smoke detectors be installed in each unit's auxiliary shutdown room, Fire Zone 071. Contrary to the above, from initial plant start up in 1987 for Unit 1 and 1988 for Unit 2, the licensee operated with one less than the required number of smoke detectors in each units' auxiliary shutdown room.
Since this violation was of very low safety significance and was documented in the licensee's corrective action program as Condition Report 10-21670, it is being treated as a noncited violation consistent with Section 2.3.2.a of the NRC Enforcement Policy: NCV 05000498/2010005-02 and 05000499/2010005
-0 2, "Failure to Install the Required Number of Smoke Detectors (4) in the Auxiliary Shutdown Room s."
1R06 Flood Protection Measures
a. The inspectors reviewed the UFSAR, the flooding analysis, and plant procedures to assess susceptibilities involving internal flooding; reviewed the corrective action program to determine if licensee personnel identified and corrected flooding problems; inspected underground bunkers/manholes to verify the adequacy of sump pumps, level alarm circuits, cable splices subject to submergence, and drainage for bunkers/manholes; and verified that operator actions for coping with flooding can reasonably achieve the desired outcomes. The inspectors also inspected the areas listed below to verify the adequacy of equipment seals located below the flood line, floor and wall penetration seals, watertight door seals, common drain lines and sumps, sump pumps, level alarms, and control circuits, and temporary or removable flood barriers.
Specific documents reviewed during this inspection are listed in the attachment.
Inspection Scope November 23, 2010, Unit 1, electrical auxiliary building 10-foot elevation These activities constitute completion of one flood protection measures inspection sample as defined in Inspection Procedure 71111.06-05. b. No findings were identified.
Findings
1R11 Licensed Operator Requalification Program
a. On October 14, 2010, the inspectors observed a crew of licensed operations personnel in the plant's simulator to verify that operator performance was adequate, evaluators were identifying and documenting crew performance problems, and training was being conducted in accordance with licensee procedures. The inspectors evaluated the following areas:
Inspection Scope Licensed operator performance Crew's clarity and formality of communications Crew's ability to take timely actions in the conservative direction Crew's prioritization, interpretation, and verification of annunciator alarms Crew's correct use and implementation of abnormal and emergency procedures Control board manipulations Oversight and direction from supervisors Crew's ability to identify and implement appropriate technical specification actions and emergency plan actions and notifications The inspectors compared the crew's performance in these areas to pre
-established operator action expectations and successful critical task completion requirements
. These activities constitute completion of one quarterly licensed
-operator requalification program sample as defined in Inspection Procedure 71111.11. b. No findings were identified.
Findings
1R12 Maintenance Effectiveness
a. The inspectors evaluated degraded performance issues involving the following risk-significant systems:
Inspection Scope October 26, 2010, Units 1 and 2, safety injection November 5, 2010, Units 1 and 2, 7300 processor support system The inspectors reviewed events such as where ineffective equipment maintenance has resulted in valid or invalid automatic actuations of engineered safeguards systems and independently verified the licensee
's actions to address system performance or condition problems in terms of the following:
Implementing appropriate work practices Identifying and addressing common cause failures Scoping of systems in accordance with 10 CFR 50.65(b)
Characterizing system reliability issues for performance Charging unavailability for performance Trending key parameters for condition monitoring Ensuring proper classification in accordance with 10 CFR 50.65(a)(1) or (a)(2)
Verifying appropriate performance criteria for structures, systems, and components classified as having an adequate demonstration of performance through preventive maintenance, as described in 10 CFR 50.65(a)(2), or as requiring the establishment of appropriate and adequate goals and corrective actions for systems classified as not having adequate performance, as described in 10 CFR 50.65(a)(1)
The inspectors assessed performance issues with respect to the reliability, availability, and condition monitoring of the system. In addition, the inspectors verified maintenance effectiveness issues were entered into the corrective action program with the appropriate significance characterization. Specific documents reviewed during this inspection are listed in the attachment.
These activities constitute completion of two quarterly maintenance effectiveness sample s as defined in Inspection Procedure 71111.12-05. b. No findings were identified.
Findings
1R13 Maintenance Risk Assessments and Emergent Work Control
a. The inspectors reviewed licensee personnel
's evaluation and management of plant risk for the maintenance and emergent work activities affecting risk-significant and safety-related equipment listed below to verify that the appropriate risk assessments were performed prior to removing equipment for work:
Inspection Scope October 15, 2010, Units 1 and 2, planned maintenance on Unit 1 train D with high risk activity to replace the main generator stator cooling water filters
, and Unit 2 train C large work week maintenance activities including high risk activity to cycle control rod M
-10 lift coil 500 times October 29, 2010, Units 1 and 2, planned maintenance on Unit 1 train B with extensive work on the qualified display processing system, and Unit 2 train A large work week maintenance activities including refurbishing a safety
-related inverter for digital rod position indication November 4
-25 , 2010, Units 1 and 2, planned maintenance on Unit 1, and Unit 2 outage activities associated with the startup feedwater pump supply breaker failure and the reactor coolant pump 2C seal flange bolting area boric acid leak repair (forced Outage 2F1001)
The inspectors selected these activities based on potential risk significance relative to the reactor safety cornerstones. As applicable for each activity, the inspectors verified that licensee personnel performed risk assessments as required by 10 CFR 50.65(a)(4) and that the assessments were accurate and complete. When licensee personnel performed emergent work, the inspectors verified that the licensee personnel promptly assessed and managed plant risk. The inspectors reviewed the scope of maintenance work, discussed the results of the assessment with the licensee
's probabilistic risk analyst or shift technical advisor, and verified plant conditions were consistent with the risk assessment. The inspectors also reviewed the technical specification requirements and inspected portions of redundant safety systems, when applicable, to verify risk analysis assumptions were valid and applicable requirements were met.
Specific documents reviewed during this inspection are listed in the attachment.
These activities constitute completion of three maintenance risk assessments and emergent work control inspection sample s as defined in Inspection Procedure 71111.13-05. b. No findings were identified.
Findings
1R15 Operability Evaluations
a. The inspectors reviewed the following issues:
Inspection Scope November 12, 2010, Unit 2, reactor coolant pump 2C boric acid leak at the seal housing flange bolting area November 15, 2010, Units 1 and 2, component cooling water supply to nonsafety-related loads November 25, 2010, Unit 1, qualified display processing system APC-A2 communications controller board lockups
- this board has experienced five lockups since April 2010 and no conclusive cause has been determined except for the most likely cause to be noise induced fa i lure December 8, 2010, Unit 2, essential cooling water system train B traveling screen south basket carrier chain with a broken chain link December 10, 2010, Unit 1, polyacrylic acid injection into the feedwater system to reduce iron deposition in the steam generators The inspectors selected these potential operability issues based on the risk significance of the associated components and systems. The inspectors evaluated the technical adequacy of the evaluations to ensure that technical specification operability was properly justified and the subject component or system remained available such that no unrecognized increase in risk occurred. The inspectors compared the operability and design criteria in the appropriate sections of the technical specification s and UFSAR to the licensee personnel's evaluations to determine whether the components or systems were operable. Where compensatory measures were required to maintain operability, the inspectors determined whether the measures in place would function as intended and were properly controlled. The inspectors determined, where appropriate, compliance with bounding limitations associated with the evaluations. Additionally, the inspectors also reviewed a sampling of corrective action documents to verify that the licensee was identifying and correcting any deficiencies associated with operability evaluations. Specific documents reviewed during this inspection are listed in the attachment.
These activities constitute completion of five operability evaluations inspection samples as defined in Inspection Procedure 71111.15-05. b. No findings were identified.
Findings
1R18 Plant Modifications
a. Temporary Modifications To verify that the safety functions of important safety systems were not degraded, the inspectors reviewed the temporary modification titled "Allow 2H Standby Bus to be reenergized without cubicle 1A in use." This temporary modification removed the Unit 2 startup steam generator feedwater pump 24 from service and allowed the unit to restart.
Inspection Scope The inspectors reviewed the temporary modification and the associated safety-evaluation screening against the system design bases documentation, including the UFSAR and the technical specification s, and verified that the modification did not adversely affect the system operability/availability. The inspectors also verified that the installation and restoration were consistent with the modification documents and that configuration control was adequate. Additionally, the inspectors verified that the temporary modification was identified on control room drawings, appropriate tags were placed on the affected equipment, and licensee personnel evaluated the combined effects on mitigating systems and the integrity of radiological barriers.
These activities constitute completion of one sample for temporary plant modifications as defined in Inspection Procedure 71111.18-05. b. No findings were identified.
Findings
1R19 Postmaintenance Testing
a. The inspectors reviewed the following postmaintenance activities to verify that procedures and test activities were adequate to ensure system operability and functional capability:
Inspection Scope October 27, 2010, Unit 1, qualified display processing system APC
-A2 replacement of power supplies, ac line filter, and backplane board due to a repetitive failure of a communications card October 29, 2010, Unit 1, control room envelope electrical auxiliary building door 365 stuck open October 30, 2010, Unit 2, distribution panel 3 inverter refurbishment, replacement of transformers, chokes, capacitors, and cooling fans November 9, 2010, Unit 1, essential chiller 12A lube oil pressure regulator replacement November 24, 2010, Unit 1, qualified display processing system APC-A2 communications controller board, and the class 1-E 86/30 computer/man-machine interface card December 9, 2010, Unit 2, control room make
-up filtration unit 21B flow control damper motor and pump replacemen t The inspectors selected these activities based upon the structure, system, or component's ability to affect risk. The inspectors evaluated these activities for the following (as applicable):
The effect of testing on the plant had been adequately addressed; testing was adequate for the maintenance performed Acceptance criteria were clear and demonstrated operational readiness; test instrumentation was appropriate The inspectors evaluated the activities against the technical specification s, the UFSA R , 10 CFR Part 50 requirements, licensee procedures, and various NRC generic communications to ensure that the test results adequately ensured that the equipment met the licensing basis and design requirements. In addition, the inspectors reviewed corrective action documents associated with postmaintenance tests to determine whether the licensee was identifying problems and entering them in the corrective action program and that the problems were being corrected commensurate with their importance to safety. Specific documents reviewed during this inspection are listed in the attachment.
These activities constitute completion of six postmaintenance testing inspection samples as defined in Inspection Procedure 71111.19-05. b. No findings were identified.
Findings
R20 Refueling and Other Outage Activities
a. The inspectors reviewed the outage safety plan and contingency plans for the Unit 2 forced outage (2F1001) due to the startup feedwater pump breaker failure and leakage at the reactor coolant pump 2C seal housing flange area, conducted November 4-25 , 2010, to confirm that licensee personnel had appropriately considered risk, industry experience, and previous site
-specific problems in developing and implementing a plan that assured maintenance of defense in depth. During the forced outage, the inspectors observed portions of the shutdown and cooldown processes and monitored licensee controls over the outage activities listed below.
Inspection Scope Configuration management, including maintenance of defense in depth, is commensurate with the outage safety plan for key safety functions and compliance with the applicable technical specification s when taking equipment out of service.
Clearance activities, including confirmation that tags were properly hung and equipment appropriately configured to safely support the work or testing.
Installation and configuration of reactor coolant pressure, level, and temperature instruments to provide accurate indication, accounting for instrument error
. Status and configuration of electrical systems to ensure that technical specification s and outage safety
-plan requirements were met, and controls over switchyard activities.
Monitoring of decay heat removal processes, systems, and components.
Verification that outage work was not impacting the ability of the operations personnel to operate the spent fuel pool cooling system.
Reactor water inventory controls, including flow paths, configurations, and alternative means for inventory addition, and controls to prevent inventory loss.
Controls over activities that could affect reactivity.
Maintenance of secondary containment as required by the technical specification s. Start up and ascension to full power operation, tracking of start up prerequisites, walkdown of the drywell (primary containment) to verify that debris had not been left which could block emergency core cooling system suction strainers, and reactor physics testing.
Licensee identification and resolution of problems related to refueling outage activities
.
Specific documents reviewed during this inspection are listed in the attachment.
These activities constitute completion of one refueling outage and other outage inspection sample as defined in Inspection Procedure 71111.20-05. b. No findings were identified.
Findings
1R22 Surveillance Testing
a. The inspectors reviewed the UFSAR, procedure requirements, and technical specifications to ensure that the surveillance activities listed below demonstrated that the systems, structures, and/or components tested were capable of performing their intended safety functions. The inspectors either witnessed or reviewed test data to verify that the significant surveillance test attributes were adequate to address the following:
Inspection Scope Preconditioni ng Evaluation of testing impact on the plant Acceptance criteria Test equipment Procedures Jumper/lifted lead controls Test data Testing frequency and method demonstrated technical specification operability Test equipment removal Restoration of plant systems Fulfillment of ASME Code requirements Updating of performance indicator data Engineering evaluations, root causes, and bases for returning tested systems, structures, and component s not meeting the test acceptance criteria were correct Reference setting data Annunciators and alarms setpoints The inspectors also verified that licensee personnel identified and implemented any needed corrective actions associated with the surveillance testing.
October 17, 2010, Unit 2, residual heat removal pump 2C inservice test November 29, 2010, Unit 2, reactor containment building exterior concrete surface examination December 13, 2010, Unit 2, turbine
-driven auxiliary feedwater pump 24 inservice test Specific documents reviewed during this inspection are listed in the attachment.
These activities constitute completion of three surveillance testing inspection samples as defined in Inspection Procedure 71111.22-05. b.
Introduction.
The inspectors reviewed a Green self
-revealing noncited violation of 10 CFR Part 50, Appendix B, Criteria V, "Instructions, Procedures, and Drawings," for the failure to follow Procedure 0PSP03-RH-0003, "Residual Heat Removal Pump 1C(2C) Inservice Test," Revision 16.
Findings
Description.
On October 17, 2010, the Unit 2 control room was performing a surveillance test on residual heat removal pump 2C per Procedure 0PSP03
-RH-0003. The procedure directs the operator to establish the proper lineup for the test in step 5.2.2 which states, "
IF in Modes 1, 2, or 3 THEN establish the following valve/breaker lineup for RHR Train C and LHSI Train C:," and is followed by a table with various valves and breakers to be aligned by one individual and then verified by another individual. This table lists mini flow isolation valve MOV-0067C as being required to be open. When the first operator was aligning the valve
, he used the plant computer indication rather than the control board indication. Because the plant computer lists several valves in a row without any grid lines for reference
, the operator mistak enly read the valve as being open. Additionally, the procedure did not allow for the plant computer to be used for position indication for this valve.
The first operator failed to remain engaged in th e activity at hand and failed to perform an adequate self
-check to ensure that he was following the procedure.
The second operator who verified the position of MOV
-0067C did not identify that the valve was closed and should have been open because he also failed to remain engaged in the activity at hand and failed to perform an adequate self
-check to ensure that the valves listed in the procedure were in the correct position prior to starting the pump.
Consequently
, when the first operator started the pump
, it tripped on low flow approximately 5 seconds later. The operators then identified that they had left MOV-0067C closed. The shift manager then refocused all the control room operators and ensured that everyone was engaged in the task at hand. The operators re-performed the procedure and successfully completed the surveillance test.
Corrective actions that the licensee implemented includ ed remediating the individuals involved on the use of human performance tools and revising the surveillance test procedures for all the residual heat removal pumps to list the mini flow isolation valves as a separate stand alone step and not imbedded in a table with other valves/breakers.
Analysis.
The failure to reposition the mini flow isolation valve MOV-0067C as required by the procedure was a performance deficiency. The finding was more than minor because it affected the Mitigating Systems Cornerstone attributes of Procedure Quality and Human Performance and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences.
This deficiency directly challenged the residual heat removal system by relying on the low flow trip to secure the pump before pump damage occur r ed. The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609, Attachment 0609.04, "Phase 1 - Initial Screening and Characterization of Findings," dated January 10, 2008, because it affected the Mitigating Systems Cornerstone while the plant was at power. The finding was determined to be of very low safety significance (Green) because it was not a design or qualification deficiency
- it did not result in the loss of a system safety function; it did not represent the loss of a single train for greater than technical specification allowed outage time
- it did not represent a loss of one or more nontechnical specification risk
-significant equipment for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />
- and it did not screen as potentially risk significant due to seismic, flooding, or severe weather. In addition, this finding had human performance crosscutting aspects associated with work practices in that the licensee did not communicate human error prevention techniques, such as self checking, commensurate with the risk H.4(a).
Enforcement.
Title 10 CFR Part 50, Appendix B, Criteria V, "Instructions, Procedures, and Drawings," requires, in part, that activities affecting quality sh all be prescribed by documented procedures of a type appropriate to the circumstances and shall be accomplished in accordance with these procedures. Procedure 0PSP03
-RH-0003, "Residual Heat Removal Pump 1C(2C) Inservice Test," Revision 16, step 5.2.2 required that valve "Mini Flow Isolation MOV-0067C" be open. Contrary to this, on October 17, 2010 , during the quarterly surveillance test run
, step 5.2.2 was performed and verified complete with mini flow isolation valve MOV-0067C left in the closed position. This resulted in the residual heat removal pump tripping on its protective relay for low flow. Immediate corrective actions included direct oversight of the reactor operators by a senior reactor operator to ensure the proper valve lineup and completing the quarterly surveillance test, completed later the same day, to ensure residual heat removal pump 2C operability. Since this violation was of very low safety significance and was documented in the licensee's corrective action program as Condition Reports 10-22453 and 10-22472, it is being treated as a noncited violation consistent with Section 2.3.2.a of the NRC Enforcement Policy: NCV 05000499/2010005
-03, "Failure to Follow Procedure Results in Protective Relay Trip of Residual Heat Removal Pump."
Cornerstone:
1EP1 Exercise Evaluation
a. The inspectors reviewed the objectives and scenario for the 2010 biennial emergency plan exercise to determine if the exercise would acceptably test major elements of the emergency plan. The scenario simulated a sudden increase in reactor coolant activity as indicated by alarms on the failed fuel monitor (loss of the fuel integrity fission product barrier), failure of reactor coolant system chemistry sampling valves, a steam generator tube leak that escalates to a steam generator tube rupture (loss of the reactor coolant system fission product barrier), a halon discharge in the plant computer room, a small radiological release to the environment through the unit vent followed by catastrophic failure of the 1D steam line pressure-operated relief valve (loss of containment fission product barrier), to demonstrate the licensee personnel's capability to implement their emergency plan.
Inspection Scope The inspectors evaluated exercise performance by focusing on the risk
-significant activities of event classification, offsite notification, recognition of offsite dose consequences, and development of protective action recommendations in the simulator control room and the following dedicated emergency response facilities:
Technical Support Center Operations Support Center Emergency Operations Facility The inspectors also assessed recognition of
, and response to
, abnormal and emergency plant conditions, the transfer of decision making authority and emergency function responsibilities between facilities, onsite and offsite communications, protection of emergency workers, emergency repair evaluation and capability, and the overall implementation of the emergency plan to protect public health and safety and the environment. The inspectors reviewed the current revision of the facility emergency plan, emergency plan implementing procedures associated with operation of the licensee's emergency response facilities, procedures for the performance of associated emergency functions, and other documents as listed in the attachment to this report.
The inspectors compared the observed exercise performance with the requirements in the facility emergency plan, 10 CFR 50.47(b), 10 CFR Part 50 , Appendix E, and with the guidance in the emergency plan implementing procedures and other federal guidance.
The inspectors attended the post
-exercise critiques in each emergency response facility to evaluate the initial licensee self
-assessment of exercise performance. The inspectors also attended a subsequent formal presentation of critique items to plant management. The specific documents reviewed during this inspection are listed in the attachment.
These activities constitute completion of one sample as defined in Inspection Procedure 71114.01-05.
b. No findings were identified.
Findings
1EP4 Emergency Action Level and Emergency Plan Changes
a. The inspector s contacted the licensee staff to verify that no changes to the licensee's emergency plan or implementing procedures requiring regulatory review according to the requirements of Inspection Procedure 71114.04 were submitted by the licensee between January and December 2010. This procedure is closed in accordance with Inspection Manual Chapter 0306, "Information Technology Support for the Reactor Oversight Process," because opportunity to apply the full procedure was not available during the inspection cycle.
Inspection Scope No samples were completed as defined in Inspection Procedure 71114.04-05. b. No findings were identified.
Findings
OTHER ACTIVITIES
4OA1 Performance Indicator Verification
.1 Data Submission Issue
a. The inspectors performed a review of the performance indicator data submitted by the licensee for the third quarter 20 10 performance indicators for any obvious inconsistencies prior to its public release in accordance with Inspection Manual Chapter 0608, "Performance Indicator Program."
Inspection Scope This review was performed as part of the inspectors' normal plant status activities and, as such, did not constitute a separate inspection sample.
b. No findings were identified.
Findings
.2 Mitigating Systems Performance Index - Emergency ac Power System
(MS06) a. The inspectors sampled licensee submittals for the mitigating systems performance index - emergency ac power system performance indicator for Units 1 and 2 for the period from the fourth quarter 2009 through the third quarter 2010.
To determine the accuracy of the performance indicator data reported during those periods, the inspectors Inspection Scope used definitions and guidance contained in NEI Document 99-02, "Regulatory Assessment Performance Indicator Guideline," Revision
6. The inspectors reviewed the licensee's operator narrative logs, mitigating systems performance
index derivation reports, issue reports, event reports
, and NRC integrated inspection reports for the period of October 2009 through September 2010 to validate the accuracy of the submittals. The inspectors reviewed the mitigating systems performance index component risk coefficient to determine if it had changed by more than 25 percent in value since the previous inspection, and if so, that the change was in accordance with applicable NEI guidance. The inspectors also reviewed the licensee's issue report database to determine if any problems had been identified with the performance indicator data collected or transmitted for this indicator and none were identified. Specific documents reviewed are described in the attachment to this report.
These activities constitute completion of one mitigating systems performance i ndex emergency ac power system sample per unit as defined in Inspection Procedure 71151-05. b. No findings were identified.
Findings
.3 Mitigating Systems Performance Index
- High Pressure Injection Systems (MS07) a. The inspectors sampled licensee submittals for the mitigating systems performance index - high pressure injection systems performance indicator for Units 1 and 2 for the period from the fourth quarter 2009 through the third quarter 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99
-02, "Regulatory Assessment Performance Indicator Guideline," Revision
6. The inspectors reviewed the licensee's operator narrative logs, issue reports, mitigating systems performance
index derivation reports, event reports and NRC integrated inspection reports for the period of October 2009 through September 2010 to validate the accuracy of the submittals. The inspectors reviewed the mitigating systems performance index component risk coefficient to determine if it had changed by more than 25 percent in value since the previous inspection, and if so, that the change was in accordance with applicable NEI guidance. The inspectors also reviewed the licensee's issue report database to determine if any problems had been identified with the performance indicator data collected or transmitted for this indicator and none were identified. Specific documents reviewed are described in the attachment to this report.
Inspection Scope These activities constitute completion of one mitigating systems performance index high pressure in jection system sample per unit as defined in Inspection Procedure 71151-05. b. No findings were identified. Findings
.4 Mitigating Systems Performance Index
- Heat Removal System (MS08) a. The inspectors sampled licensee submittals for the mitigating systems performance index - heat removal system performance indicator for Units 1 and 2 for the period from the fourth quarter 2009 through the third quarter 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99
-02, "Regulatory Assessment Performance Indicator Guideline," Revision
6. The inspectors reviewed the licensee's operator narrative logs, issue reports, event reports, mitigating systems performance
index derivation reports, and NRC integrated inspection reports for the period of October 2009 through September 2010 to validate the accuracy of the submittals. The inspectors reviewed the mitigating systems performance index component risk coefficient to determine if it had changed by more than 25 percent in value since the previous inspection, and if so, that the change was in accordance with applicable NEI guidance. The inspectors also reviewed the licensee's issue report database to determine if any problems had been identified with the performance indicator data collected or transmitted for this indicator and none were identified. Specific documents reviewed are described in the attachment to this report.
Inspection Scope These activities constitute completion of one mitigating systems performance i ndex-heat removal system sample per unit as defined in Inspection Procedure 71151-05. b. No findings were identified.
Findings
.5 Mitigating Systems Performance Index
- Residual Heat Removal System (MS09) a. The inspectors sampled licensee submittals for the mitigating systems performance index - residual heat removal system performance indicator for Units 1 and 2 for the period from the fourth quarter 2009 through the third quarter 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99
-02, "Regulatory Assessment Performance Indicator Guideline," Revision
6. The inspectors reviewed the licensee's operator narrative logs, issue reports, mitigating systems performanc
e index derivation reports, event reports and NRC integrated inspection reports for the period of October 2009 through September 2010 to validate the accuracy of the submittals. The inspectors reviewed the mitigating systems performance index component risk coefficient to determine if it had changed by more than 25 percent in value since the previous inspection, and if so, that the change was in accordance with applicable NEI guidance. The inspectors also reviewed the licensee's issue report database to determine if any problems had been identified with the performance indicator data collected or transmitted for this indicator and none were identified. Specific documents reviewed are described in the attachment to this report.
Inspection Scope These activities constitute completion of one mitigating systems performance i ndex residual heat removal system sample per unit as defined in Inspection Procedure 71151-05. b. No findings were identified.
Findings
.6 Mitigating Systems Performance Index
- Cooling Water Systems (MS10) a. The inspectors sampled licensee submittals for the mitigating systems performance index - cooling water systems performance indicator for Units 1 and 2 for the period from the fourth quarter 2009 through the third quarter 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99
-02, "Regulatory Assessment Performance Indicator Guideline," Revision
6. The inspectors reviewed the licensee's operator narrative logs, issue reports, mitigating systems performance
index derivation reports, event reports
, and NRC integrated inspection reports for the period of October 2009 through September 2010 to validate the accuracy of the submittals. The inspectors reviewed the mitigating systems performance index component risk coefficient to determine if it had changed by more than 25 percent in value since the previous inspection, and if so, that the change was in accordance with applicable NEI guidance. The inspectors also reviewed the licensee's issue report database to determine if any problems had been identified with the performance indicator data collected or transmitted for this indicator and none were identified. Specific documents reviewed are described in the attachment to this report.
Inspection Scope These activities constitute completion of one mitigating systems performance index-cooling water system sample per unit as defined in Inspection Procedure 71151-05. b. No findings were identified.
Findings
.7 Drill/Exercise Performance
(EP01) a. The inspectors sampled licensee submittals for the drill/exercise performance
, performance indicator for the period October 2009 through September 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99
-02, "Regulatory Assessment Performance Indicator Guideline," Revision 6. The inspectors reviewed the licensee's records associated with the performance indicator to verify that the licensee accurately reported the indicator in accordance with relevant procedures and the NEI guidance. Specifically, the inspectors reviewed licensee records and Inspection Scope processes including procedural guidance on assessing opportunities for the performance indicator, assessments of performance indicator opportunities during predesignated control room simulator training sessions
, performance during the 20 10 biennial exercise
, and performance during other drills. The specific documents reviewed during the inspection are described in the attachment to this report.
These activities constitute completion of one sample of the drill/exercise performance as defined in Inspection Procedure 71151-05. b. No findings were identified.
Findings
.8 Emergency Response Organization Drill Participation
(EP02) a. The inspectors sampled licensee submittals for the emergency response organization drill participation performance indicator for the period October 2009 through September 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99
-02, "Regulatory Assessment Performance Indicator Guideline," Revision 6. The inspectors reviewed the licensee's records associated with the performance indicator to verify that the licensee accurately reported the indicator in accordance with relevant procedures and the NEI guidance. Specifically, the inspectors reviewed licensee records and processes including procedural guidance on assessing opportunities for the performance indicator
, and revisions of the roster of personnel assigned to key emergency response organization positions. The specific documents reviewed during the inspection are described in the attachment to this report. Inspection Scope These activities constitute completion of one sample of the emergency response organization drill participation as defined in Inspection Procedure 71151-05. b. No findings were identified.
Findings
.9 Alert and Notification System
(EP03) a. The inspectors sampled licensee submittals for the alert and notification system performance indicator for the period October 2009 through September 2010. To determine the accuracy of the performance indicator data reported during those periods, the inspectors used definitions and guidance contained in NEI Document 99
-02, "Regulatory Assessment Performance Indicator Guideline," Revision 6. The inspectors reviewed the licensee's records associated with the performance indicator to verify that the licensee accurately reported the indicator in accordance with relevant procedures and the NEI guidance. Specifically, the inspectors reviewed licensee records and Inspection Scope processes including procedural guidance on assessing opportunities for the performance indicator , and results of periodic alert notification system operability tests. The specific documents reviewed during the inspection are described in the attachment to this report.
These activities constitute completion of one sample of the alert and notification system as defined in Inspection Procedure 71151-05. b. No findings were identified.
Findings
4OA2 Identification and Resolution of Problems
Cornerstones:
Initiating Events, Mitigating Systems, Barrier Integrity, Emergency Preparedness, Public Radiation Safety, Occupational Radiation Safety, and Physical Protection
.1 Routine Review of Identification and Resolution of Problems
a. As part of the various baseline inspection procedures discussed in previous sections of
this report, the inspectors routinely reviewed issues during baseline inspection activities and plant status reviews to verify that they were being entered into the licensee's corrective action program at an appropriate threshold, that adequate attention was being given to timely corrective actions, and that adverse trends were identified and addressed. The inspectors reviewed attributes that included the complete and accurate identification of the problem; the timely correction, commensurate with the safety significance; the evaluation and disposition of performance issues, generic implications, common causes, contributing factors, root causes, extent of condition reviews, and previous occurrences reviews; and the classification, prioritization, focus, and timeliness of corrective actions. Minor issues entered into the licensee's corrective action program because of the inspectors' observations are included in the attached list of documents reviewed. Inspection Scope These routine reviews for the identification and resolution of problems did not constitute any additional inspection samples. Instead, by procedure, they were considered an integral part of the inspections performed during the quarter and documented in Section 1 of this report.
b. No findings were identified. Findings
.2 Daily Corrective Action Program Reviews
a. Inspection Scope
In order to assist with the identification of repetitive equipment failures and specific human performance issues for follow
-up, the inspectors performed a daily screening of items entered into the licensee's corrective action program. The inspectors accomplished this through review of the station's daily corrective action documents.
The inspectors performed these daily reviews as part of their daily plant status monitoring activities and, as such, did not constitute any separate inspection samples.
b. No findings were identified.
Findings
.3 Semi-Annual Trend Review
a. The inspectors performed a review of the licensee's corrective action program and associated documents to identify trends that could indicate the existence of a more significant safety issue. The inspectors focused their review on repetitive equipment issues, but also considered the results of daily corrective action item screening discussed in Section 4OA2.2 , above, licensee trending efforts, and licensee human performance results. The inspectors nominally considered the 6
-month period of July 2010 through December 2010, although some examples expanded beyond those dates where the scope of the trend warranted.
Inspection Scope The inspectors also included issues documented outside the normal corrective action program in major equipment problem lists, repetitive and/or rework maintenance lists, departmental problem/challenges lists, system health reports, quality assurance audit/surveillance reports, self
-assessment reports, and Maintenance Rule assessments. The inspectors compared and contrasted their results with the results contained in the licensee's corrective action program trending reports. Corrective actions associated with a sample of the issues identified in the licensee's trending reports were reviewed for adequacy. These activities constitute completion of one single semi
-annual trend inspection sample as defined in Inspection Procedure 71152-05. b. No findings were identified.
However, the inspectors did make the following observations:
Finding s and Observations The operations department continues to experience instances of failing to adhere to procedural usage requirements. This same trend was documented in the previous semi
-annual trend review in NRC Inspection Report 05000498/2010003 and 05000499/2010003. Additional examples that have occurred include: (1) operating a containment spray valve without guidance during a surveillance test while the pump w as running; (2) improperly using a note in the procedure to mark a step in the reactor coolant system check valve leak test procedure as not applicable when the note did not apply
, and consequently several valves were not repositioned
- (3) using the data table for the other unit's reference values during a spent fuel pool cooling pump inservice test; (4) and incorrectly reading a step in the reactor start up procedure and marking a step as not applicable when making preparations to take the plant to solid plant operations to draw a bubble that resulted in inadvertently dumping roughly 500 gallons of reactor coolant into the normal containment sump. While all of these issues are minor violations or findings
, they continue to occur with a frequency that raises concerns. The licensee has addressed each of these def iciencies individually and has written several roll
-up condition reports to determine any underlying causes, but events continue to occur even with corrective actions in place. The inspectors have expressed their concern to licensee management that if this trend continues, it could lead to much more significant events. See Section 1R22 of this report for a more significant example of a failure to adhere to procedural usage that resulted in a more than minor violation. The licensee has implemented additional corrective actions, some of which include: high intensity training in the simulator, crew level performance review boards, crew level human performance clock resets, and a 'back to basics' program.
.4 Selected Issue Follow
-up Inspection a. During a review of items entered in the licensee's corrective action program, the inspectors recognized several corrective action item s documenting multiple failures of the Unit 1 qualified display processing system APC
-A2 communication controller board. The inspectors reviewed the licensee's UFSAR, technical specifications, design basis documents, corrective action program, system health reports, and maintenance rule documents to understand the functions and health of the system. Since April 2010 this board has experienced five failures. Per the licensee's own procedures, after the third failure of the same component
, the licensee enters their Preventing Recurring Equipment P roblems (PREP) process to ensure a methodical restoration of the system. The inspectors determined that the licensee followed their procedures and processes, appropriately considered maintenance rule repetitive functional failures, appropriately classified the system in maintenance rule, performed an appropriate operability evaluation
, and has adequate contingency actions in
-place should the failure occur again. These failures were determined to be related to indicated parameters only and not control functions. Specific documents reviewed during this inspection are listed in the attachment. Inspection Scope These activities constitute completion of one in-depth problem identification and resolution sample as defined in Inspection Procedure 71152-05. b. No findings were identified.
Findings
OA3 Event Follow-up
.1 (Closed) Licensee Event Report 05000499/2010
00, "Containment Purge in Operation When Not Permitted by Technical Specifications" The licensee submitted this event report in accordance with 10 CFR 50.73(a)(2)(i)(B). On May 22, 2010, at 3:04 p.m., the licensee commenced surveillance testing on the solid state protection system logic train R. The surveillance testing caused one channel of the engineered safety features actuation system to be inoperable. At 3:17 p.m., with one channel inoperable, the licensee entered Technical Specification 3.3.2 Action 18 , which required that the containment purge supply and exhaust valves remain closed.
At 3:40 p.m., the secondary reactor operator noted that containment pressure was near the high alarm setpoint and commenced the supplemental purge of containment for pressure control.
This is a normal plant evolution that is performed to maintain containment pressure within technical specification requirements. Containment purge was started at 3:42 p.m. and was completed at 3:54 p.m. Prior to beginning the purge, the operator failed to inform the control room unit supervisor
, and did not review the control room logs to determine if containment purge was allowed at th at time. The solid state protection system testing completed at 4:01 p.m. and the licensee exited Technical Specification 3.3.2 required actions. During shift turnover, the oncoming shift manager identified that a containment purge had been performed while solid state protection system testing was in progress. The inspectors determined that a violation of Technical Specification 3.3.2 occurred because the containment purge supply and exhaust valves were opened while the solid state protection system train R was inhibited from performing its automatic safety functions during the surveillance test.
Train S, the redundant train, was operable to perform the safety functions, if needed.
The enforcement aspects of this licensee event report are described in Section 4OA7. This licensee event report is closed.
.2 (Closed) Unresolved Item
05000498/2007007-08 , 05000499/2007007
-08 , "Unresolved Item Involving Combined Adverse Conditions not Considered in Fuel Oil Storage Tank Sizing" During an NRC Component Design Basis Inspection, as documented in NRC Inspection Report 05000498/2007007 and 05000499/2007007, the inspectors identified that the standby diesel generator fuel oil storage tank sizing calculation did not account for the combined effects of vortexing and standby diesel generator frequency variations.
Subsequent NRC review of the issue concluded that the licensee had, in fact, accounted for the combined effects of vortexing and standby diesel generator frequency variations.
Specifically, the original NRC concern was based on Calculation MC06038, "Standby Diesel Generator Fuel Oil Storage Tank Level Setting Calculation,"
Revision 2, which incorporated a 7
-day fuel oil requirement of 55,360 gallons. The 55,360
-gallon requirement originated in the outdated Calculation MC06256
, "Sizing of Standby Diesel Generator Fuel Oil Storage Tank," Revision 4. However, Revision 5 of Calculation MC06256 determined a 51,000
-gallon 7-day fuel oil requirement. The inspectors confirmed that the combined effect of vortexing and standby diesel generator frequency variations did not adversely impact design basis fuel oil requirements, assuming a 7
-day fuel oil consumption of 51,000 gallons.
During the subsequent review of this issue, the inspectors noted that because Calculation MC06038
, Revision 2
, did not correctly reflect the 7-day fuel oil requirement specified in Calculation MC06256, Revision 5, at the time of the unresolved item, it was a violation of 10 CFR Part 50, Appendix B, Criterion III, "Design Control.
" This failure to comply with Criterion III constitutes a violation of minor significance that is not subject to enforcement action in accordance with the NRC's Enforcement Policy. The inspectors verified that, through condition r eports 07-14398 and 07
-15592, the current Calculation MC06038 , Revision 3, incorporated the 7
-day fuel oil requirement determined in Revision 5 of Calculation MC06256. This unresolved item is closed.
.3 Unit 2 Reactor Trip Following Startup Feedwater Pump Breaker Failure
On November 3, 2010, at 10:21 a.m.
, Unit 2 experienced an automatic reactor trip due to a sensed undervoltage condition on loop C reactor coolant pump. All reactor coolant pumps remained running. The undervoltage condition was the result of a fault on the 13.8 kV standby electrical bus 2H, cross tied to auxiliary bus 2H which supplies power to loop C reactor coolant pump. The fault on the 13.8 kV bus occurred when the startup feedwater pump motor breaker was closed as part of planned testing. The breaker for the startup feedwater pump catastrophically failed when the arc chutes failed to extinguish the arc, causing a path to ground, and resulted in the licensee declaring a Notification of Unusual Event at 10:38 a.m. due to an explosion inside the protected area, see event notification 46387 on the NRC website. As a consequence of the resulting electrical alignment, the train C standby diesel generator automatically started and powered the train C safety-related loads
. All control rods fully inserted and all safety features responded as designed. Consequently, with plant conditions stable in Mo de 3 and the fire brigade having assessed the area
, the Notification of Unusual Event was terminated at 12:40 p.m.
The licensee continues to perform a root cause analysis to determine and understand the failure of the breaker and is preparing a licensee event report submittal. Unit 1 was unaffected by the event and remained at 100 percent rated thermal power.
4OA5 Other Activities
.1 Review of Outside Party Evaluation
a. The inspectors reviewed the results of the 2010 World Association of Nuclear Operators assessment of the South Texas Project Electric Generating Station.
Inspection Scope b. No findings were identified.
Findings
4OA6 Meetings
Exit Meeting Summary
On November 10, 2010, the inspectors conducted a telephonic exit meeting to present the results of the onsite inspection of the 2010 Biennial Emergency Plan Exercise to Mr. G. Powell, Vice President, Technical Support and Oversight, and other members of the licensee staff. The licensee acknowledged the issues presented. The inspectors asked the licensee whether any materials examined during the inspection should be considered proprietary. No proprietary information was identified.
On December 14, 2010, the inspectors conducted a telephonic exit meeting with Mr. G. Hildebrant, Manager, Plant Protection, to verify that no changes to the licensee's emergency plan or implementing procedures requiring regulatory review according to the requirements of Inspection Procedure 71114.04 were submitted by the licensee between January and December 2010.
On January 6, 2011, the inspector s presented the inspection results to Mr. E. Halpin, President and Chief Executive Officer, and other members of the licensee staff.
The licensee acknowledged the issues presented. The inspector asked the licensee whether any materials examined during the inspection should be considered proprietary. No proprietary information was identified.
4OA7 Licensee-Identified Violations
The following violations of very low safety significance (Green) were identified by the licensee and are violations of NRC requirements which meet the criteria of Section 2.3.2 of the NRC Enforcement Policy, NUREG
-1600, for being dispositioned as noncited violations. Technical Specification 3.3.2 requires, in part, that the engineered safety features actuation system instrumentation channels and interlocks shown in Table 3.3
-3 shall be operable. Action c of Technical Specification 3.3.2 states that with an engineered safety features actuation system instrumentation channel or interlock inoperable, take the action shown in Table 3.3
-3. Action 18(a) of Table 3.3
-3 requires , in part, that with less than the minimum channels operable requirement for automatic actuation logic or actuation relays, operation may continue provided the containment purge supply and exhaust valves are maintained closed. Contrary to the above requirements, on May 22, 2010, the South Texas Project Unit 2 continued operation without maintaining the containment purge valves closed while one channel of engineered safety features actuation system was inoperable. This violation was processed through "Phase 1 - Initial Screening and Characterization of Findings," of Manual Chapter 0609 , Attachment 0609.04, dated January 10, 2008, because the reactor was at power. The finding screened to a Phase 2 evaluation because the finding was associated with the containment purge system of a pressurized water reactor with a large dry containment.
Using Manual Chapter 0609, Appendix H, dated May 6, 2004, the finding was determined to be of very low safety significance because the amount of air purged during the entire evolution was less than 100 percent of the volume of the containment building. The licensee submitted event report LER 05000499/2010 00 (See Section 4OA3) and entered this issue into their corrective action program as Condition Report 10-11730. The licensee's corrective actions included providing additional training to the operators and updating the conduct of operations and containment purge procedures
. Title 10 of the Code of Federal Regulations, Section 50.54(q), requires
, in part, that a licensee maintain and follow an emergency plan that meets the requirements of 50.47(b). Contrary to the above, between May 2 and May 15, 2010, the licensee did not follow the South Texas Project Electric Generating Station Emergency Plan, Revision 20-3. Specifically, the licensee failed to perform a routine silent test of the prompt notification system as required by emergency plan Section E.3, "Notification of the General Public" and NUREG
-0654/FEMA Report 1, Appendix 3, "Means for Providing Prompt Alerting and Notification of Response Organizations and the Population," Section C.3(h), "Siren Testing Guidance," which requires silent system tests be performed every 2 weeks. This finding was more than minor because it affects the Facilities and Equipment (Alert Notification System Testing) attribute of the Emergency Preparedness Cornerstone objective. The licensee has entered this issue into their corrective action program as Condition Report 10-14117. The finding w as evaluated as having very low safety significance because it was a failure to comply with NRC requirements, was associated with a nonrisk
-significant planning standard and d id not constitute a degraded planning standard function.
SUPPLEMENTAL INFORMATION
KEY POINTS OF CONTACT
Licensee Personnel
- J. Ashcraft, Manager, Health Physics
- M. Berg, Manager, Design Engineering
- C. Bowman, General Manager
, Nuclear Safety Assurance
- J. Calvert, Manager, Training
- R. Dunn Jr., Manager, Fuels and Analysis
- J. Enoch, Supervisor, Emergency Planning
- T. Frawley, Manager, Operations
- R. Gangluff, Manager, Chemistry, Environmental and Health Physics
- C. Grantom, Manager, PRA
- E. Halpin, President and Chief Executive Officer
- W. Harrison, Manager, Licensing
G. Hildebrant
, Manager, Plant Protection
- G. Janak, Manager, Operations
Division, Unit 1
- B. Jenewein, Manager, Systems Engineering
- J. Lovejoy, Assistant Maintenance Manager
- N. Mayer, Manager, Projects
- A. McGalliard, Manager, Performance Improvement
- R. McNiel, Manager, Maintenance Engineering
- J. Mertink, Manager, Maintenance
- J. Milliff, Manager, Operations Division, Unit 2
- C. Murry, Manager, Outage and Major Projects
- J. Paul, Engineer, Licensing Consultant
- L. Peter, Plant General Manager
- J. Pierce, Manager, Operations Training
- G. Powell, Vice President, Tech Support and Oversight
- M. Reddix, Manager, Security
- D. Rencurrel, Senior Vice President, Units 1 and 2
- M. Ruvalcaba, Manager, Testing and Programs
- R. Savage, Engineer, Licensing Staff Specialist
- M. Schaefer, Manager, I&C Maintenance
- K. Taplett, Senior Engineer, Licensing Staff
- D. Whiddon, Supervisor, Quality
- D. Zink, Supervising Engineering Specialist
Attachment
LIST OF ITEMS OPENED, CLOSED, AND DISCUSSED
Opened and Closed
-01
-01 NCV Inadequate Design Review Removes Safety Injection Flush
Line Valves from Locked Valve Program (Section 1R04)
-02
-0 2 NCV Failure to Install the Required Number of Smoke Detectors (4) in the Auxiliary Shutdown Room
s (Section 1R05)
-03 NCV Failure to Follow Procedure Results in Protective Relay Trip of Residual Heat Removal Pump (Section 1R22)
Closed
- 05000499/LER-2010-003-00 LER Containment Purge in Operation When Not Permitted by Technical Specifications
(Section 4OA3)
-08 URI Unresolved Item Involving Combined Adverse Conditions not Considered in Fuel Oil Storage Tank Sizing
(Section 4OA3)
LIST OF DOCUMENTS REVIEWED
Section 1R
- 01:
- Adverse Weather Protection
- CONDITION REPORTS
- 10-2579 10-16664 10-17686 10-20369 10-20371 10-20388 10-22560 PROCEDURES
- NUMBER TITLE REVISION 0PGP03-ZV-0001 Severe Weather Plan
- 0PGP03-ZV-0004 Freezing Weather Plan
- 0POP01-ZO-0004 Extreme Cold Weather Guidelines
- 0POP02-NK-0001 Freeze Protection/Heat Trace Operations
- WORK AUTHORIZATION NUMBERS
- 374378
- 374379
- 397957
- Attachment Section 1R
- 04:
- Equipment Alignment
- CONDITION REPORTS
- 10-179 10-9149 10-14134 10-17308 10-18975 10-20369 10-20371 10-20725 DRAWINGS NUMBER TITLE REVISION 5Q159F00045
- 1 Standby Diesel Generator Fuel Oil Storage & Transfer System 33 5Q159F22540 #1
- Standby Diesel Jacket Water
- 5Q159F22542 #1
- Standby Diesel Lube Oil
- 5R289F05038 #1
- Essential Cooling Water System Train 1A
- 5V119V10001#2
- Piping and Instrumentation Diagram - HVAC Essential Chilled Water System
- PROCEDURES
- NUMBER TITLE REVISION 0POP02-AF-0001 Auxiliary Feedwater
- 0POP02-CH-0001 Essential Chilled Water System
- 0POP02-CH-0005 Essential Chiller Operation
- 0POP09-AN-0102 Annunicator Lampbox 1(2)
- 102 Response Instructions
- WORK AUTHORIZATION NUMBERS
- 339336
- 357442
- 375852
- 376611
- 390622
- 393949
- 394419
- 398285
- 407918
- 408433
- 410688
- Attachment Section 1R
- 05:
- Fire Protection
- CONDITION REPORTS
- 10-21321 10-21670 10-23305 DRAWINGS NUMBER TITLE REVISION 9-W-01-9-E-0465#1 Mechanical and Electrical Auxiliary Building Fire Detection Plan Elevation 10'
-0" 10 5-V-11-9-V-0050 HVAC Electrical Auxiliary Building Partial Plan Elevation 10'-0" 13 FIRE PREPLANS
- NUMBER TITLE REVISION 0EAB07-FP-0071 Fire Preplan Electrical Auxiliary Building, Auxiliary Shutdown Area
- 0EAB04-FP-0049 Fire Preplan Electrical Auxiliary Building Control Room HVAC Equipment Room, Train C
- 0EAB03-FP-0039 Fire Preplan Electrical Auxiliary Building Control Room HVAC Equipment Room, Train B
- 0EAB02-FP-0005 Fire Preplan Electrical Auxiliary Building Control Room HVAC Equipment Room, Train A
- Section 1R
- 06:
- Flood Protection Measures
- CALCULATIONS
- NUMBER TITLE REVISION
- NC 9707 Facility Response Analysis for E
- AB Flooding and Spray Effects 2 MC6163 Penetration Seal Requirements for Protection Against HELBA and Flooding Effects
- Attachment
- PROCEDURES
- NUMBER TITLE REVISION 0PGP03-ZA-0514 Controlled System or Barrier Impairment
- MEG-101 Penetration Seals
Section 1R12: Maintenance Effectiveness
- CONDITION REPORTS
- 03-18095 06-7099 07-1258 07-7623 08-7568 08-15406 09-16648 09-17420 09-18999 09-20079 10-4446 10-7231 10-7663 10-10743 10-15484 10-17134 10-22918 10-22969
- MISCELLANEOUS
- TITLE System Health Report Safety Injection (SI), First Quarter 2009 through Second Quarter 2010
- System Health Report 7300 System (BS), First Quarter 2009 through Third Quarter 2010
Section 1R13: Maintenance Risk Assessment and Emergent Work Controls
- CONDITION REPORTS
- 09-14327 10-23832 10-23973 10-24032 10-24051 10-24085 10-24089 10-24455 10-25053 10-25309
- MISCELLANEOUS
- NUMBER TITLE REVISION 2149 Work Activity Risk Plan of Action Rod Control Power CAB 2AC 0 2154 Work Activity Risk Plan of Action Generator Stator Cooling Water Filter 11
- PRA-10-037 TS 3.0.4.b Risk Assessment
- Unit 2 AFWST Below
- TS Minimum from Mode 3 to Mode 2 to Mode 1 Risk Assessment
- Attachment
- PROCEDURES
- NUMBER TITLE REVISION 0POP02-RC-0003 Filling and Venting the Reactor Coolant System 33
Section 1R15: Operability Evaluations
- CONDITION REPORTS
- 06-10048 09-14327 10-21988 10-24032 10-25308 10-25445 10-25446 10-25490 10-25822 MISCELLANEOUS
- NUMBER TITLE REVISION
- South Texas Project Units 1 and 2 Dispersant Application Plan and Pilot Injection Program
- 5R209F05020#1
- Piping and Instrumentation Component Cooling Water System 18 MC6007 CCW Surge Tank Volume and Levels
- RC0036 Pipe Stress Analysis for "CC" & "WL" System from Anchor to Letdown HX 1A, Chiller 1A & Subcooler 1A
- PROCEDURES
- NUMBER TITLE REVISION 0PCP01-ZA-0038 Plant Chemistry Specifications
- 0POP02-CF-0004 Operation of the TGB Polymer Dispersant Injection System 3
- Section 1R1
- 8:
- Plant Modifications
- CONDITION REPORTS
- 10-23832
- PROCEDURES
- NUMBER TITLE REVISION
- Conduct of Operations
- Attachment
- NUMBER TITLE REVISION 0PGP03-ZA-0091 Configuration Risk Management Program
- 0POP01-ZO-0006 Risk Management Actions
- WORK AUTHORIZATION NUMBER
- S
- 412745
- 412907 412927
Section 1R19: Postmaintenance Testing
- CONDITION REPORTS
- 07-1936 10-18338 10-21988 10-22931 10-23037 10-23078 10-23125 10-23227 10-23408 10-23616 10-25200 10-25308 10-26117 10-26198 PROCEDURES
- NUMBER TITLE REVISION 0PMP05-CH-0003 York Chiller Inspection & Maintenance 300 Tons 6 0PMP07-AM-0012 QDPS
- APC-A2 Removal from Service
- 0POP02-HE-0001 Electrical Auxiliary Building HVAC System
- VTD-B943-0001 Brookfield Industries, Inc. NB
-1000 Door Operator Manual 0 WORK AUTHORIZATION NUMBERS
- 361571
- 390604
- 396570
- 405692
- 412109
- 412133
- 412168
- 412395
- 412474
- 412510
- 413160
- 413795
- 413944
- 414563
- Attachment
Section 1R20: Refueling and Other Outage Activities
- CONDITION REPORTS
- 09-14327 10-23832 10-23833 10-23973 10-24032 10-24051 10-24085 10-24089 10-24455 10-24555 10-24637 10-24641 10-25309 MISCELLANEOUS
- TITLE DATE Shutdown Risk Assessment Group Meeting Minutes November 12, 2010
- PROCEDURES
- NUMBER TITLE REVISION 0PMP05-RC-0004 Reactor Coolant Pump Motor Removal, Inspection, and Replacement
- 0POP02-RC-0003 Filling and Venting the Reactor Coolant System
- 0POP03-ZG-0001 Plant Heatup
- 0POP03-ZG-0007 Plant Cooldown
- 0PSP03-RC-0006 Reactor Coolant Inventory
Section 1R22: Surveillance Testing
- CONDITION REPORTS
- 10-17171
- PROCEDURES
- NUMBER TITLE REVISION 4C23NCS0001
- Inservice Surveillance of Cont. Post
-Tensioning System
- 0PMP04-AF-0003 Auxiliary Feedwater Turbine Trip Throttle Valve Maintenance
- Attachment
- NUMBER TITLE REVISION 0PSP03-AF-0007 Auxiliary Feedwater Pump 14(24) Inservice Test
- 0PSP09-TD-0001 Containment Tendon Test / End Anchorage and Adjacent Concrete Inspection
- WORK AUTHORIZATION NUMBERS
- 366699
- 377310
- 377990 410741
Section 1EP1: Exercise Evaluation
- CONDITION REPORTS
- 08-13217 08-18440 08-18805 08-18806 08-19621 09-00613 09-02685 09-02687 09-03080 09-09546 09-09548 09-10610 09-13771 09-14220 09-14557 09-15118 09-20088 09-20394 10-01590 10-01622 10-02789 10-02982 10-12478 10-12482 10-12976 10-14117 10-16550 10-16654 10-17643 10-17787 MISCELLANEOUS
- NUMBER TITLE REVISION/DATE
- Evaluation Report: Drill May 6, 2008
- Evaluation Report: Drill June 18, 2008
- Evaluation Report: Drill August 13, 2008
- Evaluation Report: Drill November 6, 2008
- Evaluation Report: Drill December 1, 2008
- Evaluation Report: Drill December 4, 2008
- Evaluation Report: Drill December 19, 2008
- Evaluation Report: Drill May 19, 2009
- Evaluation Report: Drill June 17, 2009
- Attachment
- NUMBER TITLE REVISION/DATE
- Evaluation Report: Drill August 12, 2009
- Evaluation Report: Drill January 27,2010
- Evaluation Report: Drill May 26, 2010
- Evaluation Report: Drill July 20, 2010
- Conduct of Operations (Chapter 2)
- Report 08-03 Quality Audit, Emergency Preparedness Report 09-01 Quality Audit, Emergency Response Division Report 10-01 Quality Audit, Emergency Response Division South Texas Project Electric Generating Station Emergency Plan
- 20-7 PROCEDURES
- NUMBER TITLE REVISION 0ERP01-ZV-EF01 EOF Director
- 0ERP01-ZV-EF02 Deputy EOF Director 11 0ERP01-ZV-EF10 Offsite Field Team Supervisor
- 0ERP01-ZV-IN01 Emergency Classification
- 0ERP01-ZV-IN02 Notifications to Offsite Agencies
- 0ERP01-ZV-IN03 Emergency Response Organization Notification
- 0ERP01-ZV-IN07 Offsite Protective Action Recommendations
- 0ERP01-ZV-SH01 Shift Manager
- 0ERP01-ZV-TP01 Offsite Dose Calculations
- 0ERP01-ZV-TS01 TSC Manager
- 0ERP01-ZV-OS01 OSC Coordinator
- 0ERP01-ZV-OS03 Radiological Coordinator
- 0ERP01-ZV-OS04 Security Coordinator
- Attachment
- NUMBER TITLE REVISION 0ERP01-ZV-OS06 Emergency Teams
- 0PCP09-ZR-0005 Determination of Primary to Secondary Leak Rate
- 0PGP03-ZA-0010 Performing and Verifying Station Activities
- 0PGP05-ZV-0001 Emergency Response Exercises and Drills
- 0PGP05-ZV-0003 Emergency Response Organization
- 0PGP05-ZV-0006 Emergency Notification and Response System
- 0PGP06-ZV-0011 Emergency Communications
- 0POP01-ZA-018 Emergency Operating Procedure User's Guide
- 0POP05-E0-E010 Loss of Reactor or Secondary Coolant
- 0POP05-E0-E030 Steam Generator Tube Rupture
- 0POP05-E 0-E020 Faulted Steam Generator Isolation
- 0POP05-E 0-EC31 Steam Generator Tube Rupture with Loss of Reactor Coolant - Sub-cooled Recovery Desired
Section 4OA1: Performance Indicator Verification
- CONDITION REPORTS
- 10-124 10-17990 10-21452 10-9179
- MISCELLANEOUS
- TITLE REVISION Mitigating System Performance Index (MSPI) Bases Document
- PROCEDURES
- NUMBER TITLE REVISION
- SEG-0007 Mitigating System Performance Indicator Collection and Processing of Data
- 0PGP05-ZN-0007 Preparation and Submittal of NRC Performance Indicators
- Attachment
- NUMBER TITLE REVISION 0PGP05-ZV-0007 Prompt Notification System
- 0PGP05-ZV-0013 Performance Indicator Tracking Guide
- 0PGP05-ZV-0016 Prompt Notification System Implementing Procedure 7 RMG1020 Risk Management Guidelines MSPI User's Manual
Section 4OA2: Identification and Resolution of Problems
- CONDITION REPORTS
- 10-8612 10-10815 10-11513 10-14822 10-20052 10-21988 10-23078 10-23616 10-25175 10-25200 10-25490 PROCEDURES
- NUMBER TITLE REVISION 0PMP07-AM-0012 QDPS
- APC-A2 Removal from Service
- WORK AUTHORIZATION NUMBERS
- 2133
- 413795 413944
Section 4OA3:
- Event Follow
-Up CALCULATIONS
- MC06256 Sizing of Standby Diesel Generator Fuel Oil Storage Tank 5 MC06256 Sizing of Standby Diesel Generator Fuel Oil Storage Tank 4 MC06038 Standby Diesel Generator Fuel Oil Storage Tank Level Setting Calculation
- MC06038 Standby Diesel Generator Fuel Oil Storage Tank Level Setting Calculation
- Attachment
- CONDITION REPORTS
- 10-11730 10-23832 10-23847 10-24085 10-26931