ML081480435
| ML081480435 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 05/30/2008 |
| From: | Gettys E NRC/NRR/ADRO/DLR |
| To: | Mckinney B Susquehanna |
| Gettys Evelyn, NRR/DLR/RLRA 415-4029 | |
| References | |
| Download: ML081480435 (8) | |
Text
May 30, 2008 Mr. Britt T. McKinney Sr. Vice President and Chief Nuclear Officer PPL Susquehanna, LLC 769 Salem Blvd., NUCSB3 Berwick, PA 18603-0467
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION FOR THE REVIEW OF THE SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION
Dear Mr. McKinney:
By letter dated September 13, 2006, PPL Susquehanna, LLC submitted an application pursuant to Title 10 of the Code of Federal Regulations Part 54 (10 CFR Part 54), to renew the operating licenses for Susquehanna Steam Electric Station, Units 1 and 2, for review by the U.S. Nuclear Regulatory Commission (NRC or the staff). The staff is reviewing the information contained in the license renewal application and has identified, in the enclosure, areas where additional information is needed to complete the review. Further requests for additional information may be issued in the future.
Items in the enclosure were discussed with Duane Filchner, and a mutually agreeable date for the response is within 30 days from the date of this letter. If you have any questions, please contact me at 301-415-4029 or e-mail evelyn.gettys@nrc.gov.
Sincerely,
\\RA\\
Evelyn Gettys, Project Manager Projects Branch 1 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-387 and 50-388
Enclosure:
As stated cc w/encl: See next page
ML OFFICE LA:DLR PM:RPB1:DLR BC: RER1:DLR BC: RPB1:DLR NAME SFigueroa EGettys JMedoff forKChang LLund DATE 5/26/08 5/28/08 5/29/08 5/30 /08/
SUSQUEHANNA STEAM ELECTRIC STATION (SSES), UNITS 1 AND 2 LICENSE RENEWAL APPLICATION (LRA)
REQUESTS FOR ADDITIONAL INFORMATION (RAI)
RAI B.2.11-1 In LRA Table 3.4.2-4, Condenser and Air Removal System, the Flow-Accelerated Corrosion (FAC) Program is credited with managing loss of material for carbon steel condensers (shell) in a treated water environment. In Table 3.4.2-7, Main Turbine System, the Flow-Accelerated Corrosion (FAC) Program is credited with managing loss of material for carbon steel turbine casings (high pressure) in a treated water environment.
Please confirm that these components are included in the scope of the existing FAC Program and if not, please justify why the LRA Section B.2.11 is not enhanced to include these components.
RAI B.2.11-2 Please provide information on how SSES expands sample size. What acceptance criterion is used for sample expansion? Is it related to thickness or to wear rates?
RAI B.2.13-1 In Table 3.2.2-7, Standby Gas Treatment System (SGTS), the Piping Corrosion Program is credited for managing the aging effect of loss of material for loop seal piping and valve bodies.
However, a review of the AMP Evaluation results document, LRPD-05, attachment 2.11, section 2.1.b, indicates that SGTS is not included in the scope of the Piping Corrosion Program. Please justify why it is not included.
Please justify how the Piping Corrosion Program will manage the aging effects of these components in SGTS.
RAI B.2.13-2 The staff noted that the current scope of program program element, as described in the LRA, does not include commitments for two GL 89-13 guidelines incorporated in GALL AMP XI.M20.
The specific components of the GL 89-13 program missing from the Piping Corrosion Program are a system walkdown inspection to ensure compliance with the CLB and a review of maintenance, operating, and training practices and procedures.
Please justify why this not an exception to the GALL AMP.
RAI B.2.13-3 In a response to GL 89-13, SSES took an exception to heat transfer capability testing. The GALL Program AMP XI.M20, in the parameters monitored/inspected program element, ENCLOSURE
recommends testing to ensure heat transfer capabilities. In the LRA section B.2.13, SSES has not taken an exception to this program element.
Please justify why no exception is taken in the application.
RAI B.2.13-4 In the operating experience program element of LRA Section B.2.13, the LRA states that SSES has programs in place with operating experience to demonstrate that the effects of aging on the service water systems, and on the safety-related heat exchangers that they serve, will be effectively managed during the period of extended operation.
Please provide some specific examples of issues that were found in the condition reports.
RAI B.2.16-1 The LRA Section B.2.16 takes an exception that the halon/carbon dioxide (CO2) suppression systems and the fuel oil supply line for the diesel-driven fire pump, inspections and tests included in the Fire Protection Program (and addressed in the Technical Requirements Manual) are not credited with aging management but do provide for periodic observation of the related components. While halon/CO2 and fuel supply line internal conditions are not directly inspected or evaluated during these tests and inspections, they do provide indirect confirmation of whether degradation has occurred, prior to a loss of function.
- 1.
Please justify why these tests and inspections, if required, are not credited for license renewal.
- 2.
Please justify why the internal surfaces are not inspected.
RAI B.2.17-1 LRA Table 3.3.2-7, Standby Gas Treatment System (STGS), credits the Fire Water System Program for managing loss of material for valve bodies (deluge). However, the STGS is not included in the list of systems in the scope of the Fire Water System program. Please clarify why the SGTS is not in scope.
RAI B.2.17-2 LRA Table 3.3.2-13 credits the Fire Water System program to manage reduction in heat transfer for heat exchanger tubes. However, the LRA Section B.2.17 states that this program is consistent with GALL AMP XI.M27, which focuses on managing the aging effect of loss of material and not reduction in heat transfer.
Please justify how this program will manage reduction in heat transfer.
RAI B.2.17-3 In the operating experience program element of LRA Section B.2.17, the LRA states that a search of condition reports was performed for the Fire Protection System. When conditions were found that required correction they were repaired in accordance with the site corrective action program.
Please provide some specific examples of issues that were found in the condition reports.
RAI B.2.17-4 CR 233774 addresses through wall leak on a fire water piping header. During the investigation, it was determined that water does not drain properly and stays in the pipe causing corrosion.
Stagnant water in low drainage locations is very conducive to pitting corrosion resulting in through wall leaks. The evaluation also stated that the system is between 15 to 20 years old, and recommended that since it has held up for so long and the corrosion process takes many years, that no changes be made. The expectation was that another 20 or so years of plant life can be had from minor pipe repairs. There were several other instances identified of through wall leakages in the fire water headers.
(a)
Since license renewal will extend the life by another 20 years, please explain if any changes are proposed for the fire water system piping to alleviate this issue.
(b)
Please confirm if representative portions of above ground piping that are included in the enhancement for wall thickness measurement by UT will include the piping where stagnant water is present.
Letter to B. McKinney from E. Gettys, dated May 30, 2008 DISTRIBUTION:
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION FOR THE REVIEW OF THE SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION HARD COPY:
DLR RF E-MAIL:
PUBLIC SSmith (srs3)
SDuraiswamy RidsNrrDlr RidsNrrDlrRlra RidsNrrDlrRlrb RidsNrrDlrRlrc RidsNrrDlrReba RidsNrrDlrRebb RidsNrrDciCvib RidsNrrDciCpnb RidsNrrDraAfpb RidsNrrDeEmcb RidsNrrDeEeeb RidsNrrDssSrxb RidsNrrDssSbpb RidsNrrDssScvb RidsOgcMailCenter RGuzman BRogers EGettys FJaxheimer
Susquehanna Steam Electric Station Units 1 and 2 cc:
Cornelius J. Gannon Vice President - Nuclear Operations PPL Susquehanna, LLC 769 Salem Blvd., NUCSB3 Berwick, PA 18603-0467 Robert M. Paley General Manager - Plant Support PPL Susquehanna, LLC 769 Salem Blvd., NUCSB2 Berwick, PA 18603-0467 Rocco R. Sgarro Manager - Nuclear Regulatory Affairs PPL Susquehanna, LLC Two North Ninth Street, GENPL4 Allentown, PA 18101-1179 Supervisor - Nuclear Regulatory Affairs PPL Susquehanna, LLC 769 Salem Blvd., NUCSA4 Berwick, PA 18603-0467 Michael H. Crowthers Supervisor - Nuclear Regulatory Affairs PPL Susquehanna, LLC Two North Ninth Street, GENPL4 Allentown, PA 18101-1179 Ronald E. Smith General Manager - Site Preparedness and Services PPL Susquehanna, LLC 769 Salem Blvd., NUCSA4 Berwick, PA 18603-0467 Michael H. Rose Manager - Quality Assurance PPL Susquehanna, LLC 769 Salem Blvd., NUCSB2 Berwick, PA 18603-0467 Joseph J. Scopelliti Community Relations Manager, Susquehanna PPL Susquehanna, LLC 634 Salem Blvd., SSO Berwick, PA 18603-0467 Bryan A. Snapp, Esq.
Associate General Counsel PPL Services Corporation Two North Ninth Street, GENTW3 Allentown, PA 18101-1179 Document Control Services PPL Susquehanna, LLC Two North Ninth Street, GENPL4 Allentown, PA 18101-1179 Richard W. Osborne Allegheny Electric Cooperative, Inc.
212 Locust Street P.O. Box 1266 Harrisburg, PA 17108-1266 Director, Bureau of Radiation Protection Pennsylvania Department of Environmental Protection Rachel Carson State Office Building P.O. Box 8469 Harrisburg, PA 17105-8469 Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 35, NUCSA4 Berwick, PA 18603-0035 Regional Administrator, Region 1 U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406
Susquehanna Steam Electric Station Units 1 and 2 cc:
Board of Supervisors Salem Township P.O. Box 405 Berwick, PA 18603-0035 Dr. Judith Johnsrud National Energy Committee Sierra Club 443 Orlando Avenue State College, PA 16803