ML061430227

Susquehanna Steam Electric Station, Units 1 and 2 - Withdrawal of Amendment Request for Extended Power Uprate (Tac Nos. MD1059 and MD1060)

ML061430227
Person / Time
Site:	Susquehanna
Issue date:	05/23/2006
From:	Guzman R V Plant Licensing Branch III-2
To:	McKinney B T Susquehanna
Guzman R V, NRR/DLPM 415-1030
References
TAC MD1059, TAC MD1060
Download: ML061430227 (7)

Text

May 23, 2006Mr. Britt T. McKinneySr. Vice President and Chief Nuclear Officer PPL Susquehanna, LLC 769 Salem Blvd., NUCSB3Berwick, PA 18603-0467

SUBJECT:

SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2 -WITHDRAWAL OF AMENDMENT REQUEST FOR EXTENDED POWER UPRATE (TAC NOS. MD1059 AND MD1060)

Dear Mr. McKinney:

By letter dated March 31, 2006, PPL Susquehanna, LLC (PPL, the licensee), submitted itsrequest to amend the operating license for Susquehanna Steam Electric Station, Units 1 and 2 (SSES 1 and 2) to increase the maximum authorized power level from 3489 megawatts thermal (MWt) to 3952 MWt, an increase of approximately 13 percent in thermal power. In a conference call on May 16, 2006, the Nuclear Regulatory Commission (NRC) staff informedPPL that certain areas of the extended power uprate (EPU) application identified during theacceptance review lacked sufficient information for the NRC staff to proceed with its review. The primary concern was that information related to steam dryer stress analyses and modification plans were not sufficient to evaluate the capability of the steam dryers to maintaintheir structural integrity at the proposed EPU conditions. In addition, the NRC staff identifiedseveral areas in RS-001, "Review Standard for Extended Power Uprates," under the Balance of Plant review matrix that were not adequately addressed. The purpose of this letter is to acknowledge PPL's withdrawal of its EPU application in its letterdated May 18, 2006, for SSES 1 and 2, and to inform you that the NRC staff's efforts underTechnical Assignment Control (TAC) Nos. MC1059 and MC1060 have been discontinued. PPL has expressed an interest in meeting with the NRC staff to discuss the results of the acceptance review in support of PPL's plans to resubmit the EPU request in June of 2006. The NRC staff will support the meeting(s), and other requested pre-application activities, under anew TAC.

B. McKinney- 2 -The enclosure to this letter contains the specific review areas for which additional information isneeded to proceed with our review. If you have any questions, please contact me at (301) 415-1030 or at rvg@nrc.gov.

Sincerely,/RA/Richard V. Guzman, Project ManagerPlant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket Nos. 50-387 and 50-388

Enclosure:

As statedcc w/encl: See next page

OFFICELPLI-1/PMLPLI-1/LALPLI-1/BC NAMERGuzmanSLittleRLaufer DATE5/23/065/23/065/23/06 Susquehanna Steam Electric Station, Units 1 and 2 cc:

Robert A. SacconeVice President - Nuclear Operations PPL Susquehanna, LLC 769 Salem Blvd., NUCSB3Berwick, PA 18603-0467Aloysius J. Wrape, IIIGeneral Manager - Performance Improvement and Oversight PPL Susquehanna, LLC Two North Ninth Street, GENPL4 Allentown, PA 18101-1179Terry L. HarpsterGeneral Manager - Plant Support PPL Susquehanna, LLC 769 Salem Blvd., NUCSA4Berwick, PA 18603-0467Rocco R. SgarroManager - Nuclear Regulatory Affairs PPL Susquehanna, LLC Two North Ninth Street, GENPL4 Allentown, PA 18101-1179Walter E. MorrisseySupervising Engineer Nuclear Regulatory Affairs PPL Susquehanna, LLC 769 Salem Blvd., NUCSA4Berwick, PA 18603-0467Michael H. CrowthersSupervising Engineer Nuclear Regulatory Affairs PPL Susquehanna, LLC Two North Ninth Street, GENPL4 Allentown, PA 18101-1179Steven M. CookManager - Quality Assurance PPL Susquehanna, LLC 769 Salem Blvd., NUCSB2Berwick, PA 18603-0467Luis A. RamosCommunity Relations Manager, Susquehanna PPL Susquehanna, LLC 634 Salem Blvd., SSO Berwick, PA 18603-0467Bryan A. Snapp, EsqAssoc. General Counsel PPL Services Corporation Two North Ninth Street, GENTW3 Allentown, PA 18101-1179Supervisor - Document Control ServicesPPL Susquehanna, LLC Two North Ninth Street, GENPL4 Allentown, PA 18101-1179Richard W. OsborneAllegheny Electric Cooperative, Inc.

212 Locust Street P.O. Box 1266 Harrisburg, PA 17108-1266Director, Bureau of Radiation ProtectionPennsylvania Department of Environmental Protection Rachel Carson State Office Building P.O. Box 8469 Harrisburg, PA 17105-8469Senior Resident InspectorU.S. Nuclear Regulatory Commission P.O. Box 35, NUCSA4 Berwick, PA 18603-0035Regional Administrator, Region 1U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406Board of SupervisorsSalem Township

P.O. Box 405 Berwick, PA 18603-0035 Susquehanna Steam Electric Station, Units 1 and 2 cc:Dr. Judith JohnsrudNational Energy Committee Sierra Club 443 Orlando Avenue State College, PA 16803 EnclosureSUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2EXTENDED POWER UPRATE APPLICATIONADDITIONAL INFORMATION NEEDED FOR NRC STAFF REVIEWPPL SUSQUEHANNA, LLCDOCKET NOS. 50-387 AND 50-388By letter to the Nuclear Regulatory Commission (NRC) dated March 31, 2006, PPLSusquehanna, LLC (PPL, the licensee) submitted a request to amend the operating license for Susquehanna Steam Electric Station, Units 1 and 2 (SSES 1 and 2) to increase the maximum authorized power level from 3489 megawatts thermal (MWt) to 3952 MWt, an increase of approximately 13% in thermal power. The NRC staff considers a power uprate in excess ofapproximately 7% to be an "extended power uprate" (EPU). In accordance with its procedures for reviewing EPU applications, the NRC staff performed an acceptance review of PPL's EPU application to determine whether it was sufficient to allow the staff to proceed with its detailed technical review. The NRC staff determined that additional information must be submitted forthe following review areas:Engineering Mechanics - Steam Dryer Structural Evaluation The NRC staff does not consider the information provided in PPL's March 31, 2006, application to be sufficient to evaluate the capability of the steam dryers at SSES 1 and 2 to maintain theirstructural integrity at the proposed EPU conditions. The supplement planned to be provided by PPL as supporting information in the second quarter of 2006 is needed to evaluate the structural capability of the SSES 1 and 2 steam dryers for the proposed EPU conditions.Balance of Plant EvaluationInternally Generated Missiles (Outside Containment)PPL's application is lacking information on the evaluation of impact on structures, systems, andcomponents of postulated turbine missiles (Power Uprate Safety Analysis Report (PUSAR)

Section 7.1), and no evaluation of the EPU impact on other sources of missiles (e.g., effect of increased flow rates and transient effects such as from fast-acting valves, and from main feed pump turbine) (PUSAR 10.1 and 7.4).Internally Generated Missiles (Inside Containment)PPL's application is lacking information on the evaluation of the EPU impact on missile sources(e.g., effect of increased flow rates and transient effects such as from fast-acting valves)

(PUSAR 10.1). Fission Product Control Systems and StructuresPPL's application addresses EPU impact on standby gas treatment system, but does notdiscuss impact on other fission product control systems and structures that are credited. Ultimate Heat SinkThe proposed change to TS 3.7.1 is not adequately addressed and justified; the proposedchange to the licensing basis/analysis is also inadequately addressed and justified; a description/justification for post-modification testing that will be performed to confirm analyticalassumptions with respect to pressure and spray height is needed. Condensate and Feedwater (FW) SystemThe licensing basis change for FW and condensate pump trip is not specifically identified forNRC review and approval; the increased challenges to reactor safety systems are not justified. Emergency Diesel Engine Fuel Oil Storage and Transfer SystemPPL's application is lacking information on the impact that EPU will have on the emergencydiesel generator fuel oil storage/inventory.