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| number = ML070740419
| number = ML070740419
| issue date = 04/25/2007
| issue date = 04/25/2007
| title = Pilgrim Nuclear Power Station, License Amendment, Issuance of Amendment Single Control Rod Withdrawal Allowances (TAC No. MC9018)
| title = Pilgrim Nuclear Power Station, License Amendment, Issuance of Amendment Single Control Rod Withdrawal Allowances
| author name = Kim J S
| author name = Kim J S
| author affiliation = NRC/NRR/ADRO/DORL/LPLI-1
| author affiliation = NRC/NRR/ADRO/DORL/LPLI-1

Revision as of 14:03, 10 February 2019

Pilgrim Nuclear Power Station, License Amendment, Issuance of Amendment Single Control Rod Withdrawal Allowances
ML070740419
Person / Time
Site: Pilgrim
Issue date: 04/25/2007
From: Kim J S
NRC/NRR/ADRO/DORL/LPLI-1
To: Kansler M
Entergy Nuclear Operations
kim J, NRR/ADRO/DORL, 415-4125
References
TAC MC9018
Download: ML070740419 (14)


Text

April 25, 2007Mr. Michael KanslerPresident Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601

SUBJECT:

PILGRIM NUCLEAR POWER STATION - ISSUANCE OF AMENDMENT RE: SINGLE CONTROL ROD WITHDRAWAL ALLOWANCES (TAC NO. MC9018)

Dear Mr. Kansler:

The Commission has issued the enclosed Amendment No. 228 to Facility Operating LicenseNo. DPR-35 for the Pilgrim Nuclear Power Station. This amendment is in response to your application dated October 18, 2005, as supplemented on February 23, 2007. The amendment provides allowances for single control rod withdrawal during Hot Shutdownand Cold Shutdown conditions consistent with the Standard Technical Specifications for BoilingWater Reactors (NUREG-1433, Revision 3). The amendment corrects a typographical error and administratively relocates the existing TS 3/4.10.D, "Multiple Control Rod Removal," to TS 3/4.14.E to be consistent with the intent and presentation of special operations. A copy of the related Safety Evaluation is also enclosed. Notice of Issuance will be included inthe Commission's biweekly Federal Register Notice. Sincerely,/RA/James Kim, Project ManagerPlant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket No. 50-293

Enclosures:

1. Amendment No. 228 to License No. DPR-35
2. Safety Evaluationcc w/encls: See next page April 25, 2007Mr. Michael KanslerPresident Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601

SUBJECT:

PILGRIM NUCLEAR POWER STATION - ISSUANCE OF AMENDMENT RE: SINGLE CONTROL ROD WITHDRAWAL ALLOWANCES (TAC NO. MC9018)

Dear Mr. Kansler:

The Commission has issued the enclosed Amendment No. 228 to Facility Operating LicenseNo. DPR-35 for the Pilgrim Nuclear Power Station. This amendment is in response to your application dated October 18, 2005, as supplemented on February 23, 2007. The amendment provides allowances for single control rod withdrawal during Hot Shutdownand Cold Shutdown conditions consistent with the Standard Technical Specifications for BoilingWater Reactors (NUREG-1433, Revision 3). The amendment corrects a typographical error and administratively relocates the existing TS 3/4.10.D, "Multiple Control Rod Removal," to TS 3/4.14.E to be consistent with the intent and presentation of special operations. A copy of the related Safety Evaluation is also enclosed. Notice of Issuance will be included inthe Commission's biweekly Federal Register Notice. Sincerely,/RA/James Kim, Project ManagerPlant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket No. 50-293

Enclosures:

1. Amendment No. 228 to License No. DPR-35
2. Safety Evaluationcc w/encls: See next pageDISTRIBUTION
PUBLICRidsNrrDorlLpl1-1RPowell, RIRidsOGC RP JGilmer PDI-I R/FRidsNrrLASLittle RidsNrrPMJKimGHill (2) JShea RidsAcrsAcnwMailPackage: Accession Number: ML070740419 OFFICELPL1-2/PMlPL1-1/PMLPL1-1/LA SBWB/BCITSB/BCOGC LPL1-1/BCNAMEJSheaJKimSLittleGCranstonTKobetzSUttal MKowalDATE 3/16/073/23/07 3/23/073/23/073/26/07 4/20/07 4/25/07OFFICIAL RECORD COPY ENTERGY NUCLEAR GENERATION COMPANYENTERGY NUCLEAR OPERATIONS, INC.DOCKET NO. 50-293PILGRIM NUCLEAR POWER STATIONAMENDMENT TO FACILITY OPERATING LICENSEAmendment No. 228 License No. DPR-351. The Nuclear Regulatory Commission (the Commission) has found that:A.The application for amendment filed by Entergy Nuclear Operations, Inc. (thelicensee) dated October 18, 2005 as supplemented on February 23, 2007, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commission's rules and regulations;B.The facility will operate in conformity with the application, the provisions of theAct, and the rules and regulations of the Commission;C.There is reasonable assurance: (I) that the activities authorized by thisamendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations;D.The issuance of this amendment will not be inimical to the common defense andsecurity or to the health and safety of the public; andE.The issuance of this amendment is in accordance with 10 CFR Part 51 of theCommission's regulations and all applicable requirements have been satisfied.

2.Accordingly, the license is amended by changes to the Technical Specifications asindicated in the attachment to this license amendment, and paragraph 3.B of Facility Operating License No. DPR-35 is hereby amended to read as follows:B.Technical SpecificationsThe Technical Specifications contained in Appendix A, as revised throughAmendment No. 228, are hereby incorporated in the license. The licensee shall operate the facility in accordance with the Technical Specifications.3.This license amendment is effective as of the date of issuance and shall beimplemented within 90 days.FOR THE NUCLEAR REGULATORY COMMISSION /RA/Mark G. Kowal, ChiefPlant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

Attachment:

Changes to the License and Technical SpecificationsDate of Issuance: April 25, 2007 ATTACHMENT TO LICENSE AMENDMENT NO. 228 FACILITY OPERATING LICENSE NO. DPR-35DOCKET NO. 50-293Replace the following page of the Facility Operating License with the attached revised page. The revised page is identified by amendment number and contains a marginal line indicatingthe area of change.

RemoveInsert 33Replace the following pages of the Appendix A Technical Specifications with the attachedrevised pages. The revised pages are identified by amendment number and contain marginal lines indicating the areas of change.

RemoveInsertiiii iiiiii 3/4.10-23/4.10-2 3/4.10 - -

3/4.14-33/4.14-3

- - - 3/4.14-4

- - -3/4.14-5

- - -3/4.14-6

- - -3/4.14-7

- - - 3/4.14-8

- - -3/4.14-9

- - -3/4.14-10 SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATIONRELATED TO AMENDMENT NO. 228 TO FACILITY OPERATING LICENSE NO. DPR-35ENTERGY NUCLEAR GENERATION COMPANYENTERGY NUCLEAR OPERATIONS, INC.PILGRIM NUCLEAR POWER STATIONDOCKET NO. 50-29

31.0INTRODUCTION

By letter dated October 18, 2005, (Agencywide Documents Access and Management System(ADAMS) Accession No. ML053040450) as supplemented on February 23, 2007 (Accession No. ML070650342), Entergy Nuclear Operations, Inc. (Entergy or the licensee) submitted a request for changes to the Pilgrim Nuclear Power Station (Pilgrim) Technical Specifications (TSs). The amendment would revise the Pilgrim TSs to provide allowances for single control rod withdrawal during Hot Shutdown and Cold Shutdown conditions. These proposed changes are consistent with the Standard Technical Specifications (STS) for Boiling Water Reactors (BWRs) NUREG-1433, "STS General Electric Plants, BWR/4," Revision 3. This amendment would allow additional flexibility to perform certain control rod testing andmaintenance during shutdown with the reactor vessel head bolts tensioned. Additional controls would be applied to ensure that adequate shutdown reactivity margin is maintained.The February 23, 2007, supplemental letter provided additional information that clarified theapplication, but did not expand the scope of the application as originally noticed and did not change the staff's original proposed no significant hazards consideration determination as published in the Federal Register on January 3, 2006 (71 FR 148)

.

2.0REGULATORY EVALUATION

The Pilgrim control rod drive (CRD) system performs three operational functions: rod insertion, rod withdrawal, and rapid shutdown during off normal reactor conditions commonly referred to as a "scram." Appendix A to Title 10 of the Code of Federal Regulations (CFR), Part 50,"General Design Criteria for Nuclear Power Plants (GDC)," provides the design criteria, construction, testing and performance requirements for structures, systems and components important to safety. Although the original approval basis for Pilgrim was the draft GDC, the licensees for Pilgrim have made changes to the facility over the life of the plant that may have invoked some of the final GDC. The extent to which the final GDC have been invoked can be found in specific sections of the Pilgrim Updated Final Safety Analysis Report (UFSAR) and in other Pilgrim design and licensing basis documentation. The following 10 CFR Appendix A Criteria are applicable to the CRD system: GDC 26, Reactivity control system redundancy and capability, which requires that the CRDsystem should be capable of rendering a reactor subcritical under conservative conditions with the control rod with the highest rod worth fully withdrawn from the core. The conservative conditions include the highest positive reactivity contributions due to effects such as temperature and power and the lowest negative reactivity contributions from poisons such as Xenon. Meeting the requirements of GDC 26 ensures that the CRD system will be capable of providing sufficient operational control, reliability and safety during reactivity changes, including those during normal operation and anticipated operational occurrences.GDC 29, Protection against anticipated operational occurrences, requires that the protectionand reactivity control systems shall be designed to ensure an extremely high probability of accomplishing their safety functions in the event of anticipated operational occurrences.Pigrim specifically conforms to the draft GDC for Nuclear Power Plant Construction Permitsissued by the Atomic Energy Commission in July, 1967, which have equivalent requirements as the approved final GDC including the above applicable CRD system GDC. The Nuclear Regulatory Commission (NRC) staff and nuclear steam supply owners groupsdeveloped the STS that established models of the Commission's policy for TSs, and improved the format and clarity of the specifications. NUREG-1433, Revision 3, was approved and issued for use by the NRC on June 30, 2004. The STS includes Special Operations TS limiting conditions for operation (LCOs) in Section 3.10, which allow specified TS requirements to be changed to permit performances of special tests and operations. These special tests and operations are necessary to demonstrate select unit performance characteristics, to perform special maintenance activities, and to perform special evolutions, which otherwise could not beperformed if required to comply with the requirements of the TSs. A special operation may be performed either under the provisions of the appropriate Special Operations LCO or under the other applicable TS requirements. If it is desired to perform the special operation under the provisions of the Special Operations LCO, the requirements of the Special Operations LCO shall be followed. In general, licensees cannot justify TS changes solely on the basis of adopting the STS. Toensure this, the NRC staff makes a determination that proposed changes maintain adequate safety. Changes that result in relaxation (less restrictive condition) of current TS requirements require a detailed justification. The NRC staff reviewed the licensee's proposed changes for compliance with the applicablePilgrim design criteria as established by the draft GDC, and the guidance established in the STS and the licensee's technical justification.

3.0TECHNICAL EVALUATION

3.1Proposed Changes to the Pilgrim TS RequirementsThe licensee's submittal contains the following proposed changes:

3.1.1New Special Operations TS 3/4.14.C, "Single Control Rod Withdrawal - Hot Shutdown,"will be added, including Applicability, Actions, and Surveillance Requirements (SRs) modeled after STS, Specification 3.10.3. Proposed Bases drafts associated with these changes were provided for information. 3.1.2New Special Operations TS 3/4.14.D , "Single Control Rod Withdrawal - ColdShutdown," will be added, including Applicability, Actions, and SRs modeled after STS,Specification 3.10.4. Proposed Bases drafts associated with these changes were provided for information.3.1.3Existing TS 3/4.10.D, "Multiple Control Rod Removal," will be relocated as TS 3/4.14.E and associated Bases changes will be made. Additionally, the requirement specified in 3.10.D.1.b that invokes the source range monitors (SRMs) operability requirements of Specification 3.3.B.3 will be revised to invoke the SRMs operability requirements of 3.10.B.1 and 3.10.B.2. Similarly, SR 4.10.D.1.b will be revised to invoke the SRs of 4.10.B "Core Monitoring". 3.1.4Administrative Changes:a)A typographical error in Surveillance Requirement 4.10.D.1.f will be corrected,i.e., the misspelled word "road" will be changed to the correct word "rod".b)The Table of Contents will be updated to reflect the changes described above.3.2Staff Evaluation of Proposed Changes3.2.1Proposed Special Operations TS 3/4.14.C, "Single Control Rod Withdrawal - HotShutdown," including Applicability, Actions, and SRs

This proposed addition to the Pilgrim TSs is modeled after the STS, Specification 3.10.3. The licensee technical justification for the single rod withdrawal allowance during Hot Shutdown conditions is provided in their submittal dated October 18, 2005. The purpose of this Special Operations LCO is to permit the withdrawal of a single control rodfor testing while in a Hot Shutdown condition. Hot Shutdown Mode as defined in the Pilgrim TS Section 1.0 requires the mode switch in shutdown and reactor coolant temperature greater than 212 °F with no core alterations being performed. When the mode switch is in the shutdown position all control rods are inserted and blocked from withdrawal by the reactor manual control system (RMCS). Circumstances may arise while in a Hot Shutdown condition that require withdrawal of a singlecontrol rod for various tests (e.g., friction tests, scram timing, and coupling integrity checks).

These single control rod withdrawals are accomplished by placing the reactor mode switch in the refuel position. With the mode switch in the refuel position, the RMCS refueling interlocks are in service enforcing restrictions to prevent inadvertent criticality by preventing more than one control rod from being withdrawn and by restricting movement of refueling equipment. The refueling interlocks reinforce operational procedures that prohibit taking the reactor critical during refueling operations when the reactor vessel head is normally removed. For this Special Operations LCO while in a Hot Shutdown condition, it is expected that the reactor vessel head would be in place with the closure bolts fully tensioned consistent with the definition for Hot Shutdown Mode in the STS Table 1.1-1. This Special Operations TS LCO provides additional controls besides the refueling interlocks(TS LCO 3.14.C.2.), before a single control rod withdrawal is allowed in a Hot Shutdown condition. The proposed TS LCO requires two SRMs to be operable (TS LCO 3.14.C.1.), the"full-in" control rod position indication for each control rod to be operable or the associated CRD to be disarmed (TS LCO 3.14.C.3.), all other control rods fully inserted (TS LCO 3.14.C.4.), and the withdrawn control rod to be operable, with associated reactor protection system (Scram) instrumentation trip functions operable (TS LCO 3.14.C.5.a) or all other rods in a 5 x 5 array centered on the withdrawn rod disarmed, allowing the single control rod to be withdrawn assumed to be the strongest worth rod (TS LCO 3.14.C.5.b). These requirements, coupled with a shutdown margin requirement for the most reactive rodfully withdrawn, are adequate to prevent inadvertent criticality when a single rod is withdrawn for maintenance or testing. In addition, the operability requirement for SRMs would provide the operator early indication of an approach to criticality so that action can be taken to prevent this condition.

With the reactor mode switch in refuel, the accident analyses for control rod withdrawal during refueling are applicable. Explicit safety analyses in the Pilgrim UFSAR demonstrate that the functioning of the refueling interlocks and adequate shutdown margin (SDM) as required by the Pilgrim TS 3.3 and TS 4.3, will preclude unacceptable reactivity excursions during normal operation and anticipated operational occurrences.The Pilgrim UFSAR Section 3.6.2.4 specifies the shutdown reactivity control requirements. Thereactivity control must be such that the reactor core, in its most conservative reactive condition, can be maintained subcritical (k-effective less than or equal to 0.99) with the control rod of highest worth fully withdrawn and all others fully inserted. The analyses which demonstrate that SDM can be maintained with the highest worth controlrod withdrawn is discussed in UFSAR Section 3.6.2.4.1. The Pilgrim shutdown margin calculation is performed in accordance with General Electric (GESTAR) methodology, NEDE-24011-P-A-14-US, "Licensing Topical Report, General Electric Standard Application for Reactor Fuel (Supplement for United States), Global Nuclear Fuels," dated June 30, 2000, ADAMS Accession No. ML011230175.). This methodology has been approved by the NRC staff.Further assurance of adequate SDM is demonstrated by periodic testing required by Pilgrim TS SR 4.3.A.1. This surveillance is completed during startup at the beginning of eachoperating cycle to demonstrate that sufficient shutdown margin exists.

As described in theUFSAR Section 7.6, the refueling interlocks restrict the movement of control rods to reinforceoperational procedures that prevent the reactor from becoming critical. These interlocks prevent the withdrawal of more than one control rod and restrict the movement of refueling equipment. Under these conditions, since only one control rod can be withdrawn, the core will always be shut down even with the highest worth control rod withdrawn. The Pilgrim custom TSs require the Average Power Range Monitors (APRMs) scram function tobe operable when the mode switch is in refuel in accordance with TS Table 3.1.1; the APRMs are credited in the Pilgrim FSAR as the means for processing a reactor scram in the event of a rod drop accident. In the proposed amendment, the APRMs scram function would not be required while operating under the conditions of the Special Operations TSs. This is a less restrictive change than the current Pilgrim TS requirements. In response to a request for additional information from the NRC staff, the licensee provided additional justification for not including the APRMs scram function in their proposed Special Operations TS LCO. The licensee amendment request supplement dated February 23, 2007, stated that the tworequired SRMs would provide the operators an early indication of an approach to criticality so that action can be taken to prevent an inadvertent critical condition. Furthermore, the reactor protection system Intermediate Range Monitor (IRM) "high flux" and IRM "inoperative" scram functions will be operable in accordance with the proposed TS LCO. The control rod scram function provides backup protection to normal refueling procedures andthe refueling interlocks, which would also prevent an inadvertent criticality during special operation testing while the plant was in the Hot Shutdown condition with the mode switch in refuel. The APRM scram function is not needed for a single rod out configuration, because by plant design the reactor core has adequate shutdown margin to ensure the core remains subcritical with the highest worth rod fully withdrawn under the most reactive core state.The new Special Operations TS also provides an alternative to the conditions required byproposed TS LCO 3.14.C.5.a. Consistent with the requirements of the STS, the new Pilgrim TS LCO 3.14.C.5.b would provide a conservative alternative in the event that any one of the TS 3.14.C.5.a requirements could not be met. A fully inserted and disarmed 5x5 control rod array provides a minimum separation between a withdrawn control rod and other control rods that could be withdrawn while in the refuel mode. In its supplement dated February 23, 2007, the licensee states that,"The withdrawal of a second control rod is a highly improbable event, requiring twoconcurrent failures; 1)The Operator erroneously selects and initiates withdrawal of a second controlrod (a procedure violation) and 2)The one-rod-out interlock or other control rod withdrawal block required to beoperable fails, thereby enabling withdrawal of the second control rod. By requiring that all control rods in a 5x5 array, centered on the inoperable control rod tobe withdrawn are fully inserted and disarmed, in addition to the required one-rod-out interlock or other required control rod withdrawal block, the conditions that could lead to a challenge to the shutdown margin are precluded from occurring. Therefore, scram capability for the withdrawn control rod at the array center is unnecessary."The NRC staff has determined that performance of special testing with one control rodwithdrawn in the Hot Shutdown condition is bounded by the refuel mode accident and criticality analysis. In addition, this proposed Special Operations TS LCO and SRs are consistent with the STS Specification 3.10.3. Therefore, the NRC staff finds the proposed Special Operations TS 3/4.14.C, "Single Control Rod Withdrawal - Hot Shutdown," acceptable.3.2.2Proposed Special Operations TS 3/4.14.D, "Single Control Rod Withdrawal - ColdShutdown," including Applicability, Actions, and SRs (SR)This proposed addition to the Pilgrim TSs is modeled after the STS, Specification 3.10.4. Thelicensee technical justification for the single rod withdrawal allowance during Cold Shutdown conditions is provided in their submittal dated October 18, 2005. The purpose of this Special Operations LCO is to permit the withdrawal of a single control rodfor testing or maintenance while in a Cold Shutdown condition. Cold Shutdown Mode as defined in the Pilgrim TS Section 1.0 requires the mode switch in shutdown and reactor coolant temperature less than 212 °F with no core alterations being performed. When the mode switch is in the shutdown position all control rods are inserted and blocked from withdrawal by the RMCS. Circumstances may arise while in a Cold Shutdown condition that require withdrawal of a single control rod and or removal of the associated CRD if desired for maintenance. As with a single control rod withdrawal in Hot Shutdown condition, a single rod withdrawal in Cold Shutdown condition is accomplished by placing the reactor mode switch in the refuel position, which places the RMCS refueling interlocks in service enforcing restrictions to prevent inadvertent criticality. For this Special Operations LCO while in a Cold Shutdown condition, it is expected that the reactor vessel head would be in place with the closure bolts fully tensioned consistent with the definition for Cold Shutdown Mode in the STS Table 1.1-1.This proposed Special Operations TS LCO provides controls similar to the Special OperationsLCO discussed above for Hot Shutdown condition with an exception. The Pilgrim Special Operations TS 3.14.2.b would allow a control rod withdrawal block to be inserted as an administrative means to ensure that another control rod would not be withdrawn while completing tests or CRD maintenance under this Special Operations TS in Cold Shutdown.

The discussion on shutdown margin and accident analysis for the Hot Shutdown TS LCO also apply in the case of the proposed Cold Shutdown TS LCO TS 3/4.14.D.The NRC staff has determined that performance of special testing and/or CRD maintenancewith one control rod withdrawn in the Cold Shutdown condition is bounded by refuel mode accident and criticality analysis. In addition, the proposed Special Operations TS LCO and SRs are consistent with the STS Specification 3.10.4. Therefore, the NRC staff finds the proposed Special Operations TS 3/4.14.D, "Single Control Rod Withdrawal - Cold Shutdown," acceptable.3.2.3 Relocate TS 3/4.10.D, to TS 3/4.14.E and revise SRM operability requirements The proposed relocation of the existing Pilgrim TS 3/4.10.D to TS 3/4.14.E is an administrativechange to place the Pilgrim TS requirements for multiple control rod removal in a more applicable TS section for control rod withdrawal special operations. The change is administrative, with no technical impact and is consistent with the STS Special Operations TSLCO 3.10.6. Additionally, the requirement specified in Pilgrim TS 3.10.D.1.b that invokes the SRM operabilityrequirements of TS 3.3.B.3 is being revised to invoke the SRM operability requirements of TS 3.10.B.1 and TS 3.10.B.2. Similarly, TS SR 4.10.D.1.b will be revised to invoke the SRs of 4.10.B Core Monitoring. These proposed changes are consistent with the SRM operability requirements presented in the STS, LCO 3.3.1.2. They are more restrictive, as well as more pertinent, than the current requirements, in that periodic verification is required and the new SRM requirements in this proposed Special Operations TS section are not related to plant startup conditions. Therefore, the NRC staff finds the proposed relocation and SRM operabilitychanges acceptable.

3.2.4 Administrative

ChangesA typographical error in Pilgrim SR 4.10.D.1.f will be corrected, i.e., the misspelled word "road"will be changed to "rod", in addition, the revision to the Table of Contents to reflect the changesdescribed above are administrative. These administrative changes are, therefore, acceptable.

4.0STATE CONSULTATION

In accordance with the Commission's regulations, the Massachusetts State official was notified of the proposed issuance of the amendment. The State official had no comments.

5.0ENVIRONMENTAL CONSIDERATION

The amendment changes a requirement with respect to installation or use of a facilitycomponent located within the restricted area as defined in 10 CFR Part 20 and changes SRs.

The NRC staff has determined that the amendment involves no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, and that there is no significant increase in individual or cumulative occupational radiation exposure. The Commission has previously issued a proposed finding that the amendment involves no significant hazards consideration, and there has been no public comment on such finding (71 FR 148). Accordingly, the amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9). Pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendment.

6.0 CONCLUSION

The Commission has concluded, based on the considerations discussed above, that: (1) thereis reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) such activities will be conducted in compliance with the Commission's regulations, and (3) the issuance of the amendment will not be inimical to the common defense and security or to the health and safety of the public.Principal Contributors: J. Gilmer, J. Shea Date: April 25, 2007 Pilgrim Nuclear Power Station cc:

Regional Administrator, Region IU. S. Nuclear Regulatory Commission

475 Allendale Road King of Prussia, PA 19406-1415Senior Resident InspectorU. S. Nuclear Regulatory Commission Pilgrim Nuclear Power Station Post Office Box 867 Plymouth, MA 02360Chairman, Board of Selectmen11 Lincoln Street Plymouth, MA 02360ChairmanNuclear Matters Committee Town Hall 11 Lincoln Street Plymouth, MA 02360Chairman, Duxbury Board of SelectmenTown Hall 878 Tremont Street Duxbury, MA 02332Office of the CommissionerMassachusetts Department of Environmental Protection One Winter Street Boston, MA 02108Office of the Attorney GeneralOne Ashburton Place 20th Floor Boston, MA 02108MA Department of Public HealthRadiation Control Program Schrafft Center, Suite 1M2A 529 Main Street Charlestown, MA 02129Secretary of Public SafetyExecutive Office of Public Safety One Ashburton Place Boston, MA 02108 Director, Massachusetts EmergencyManagement Agency Attn: James Muckerheide 400 Worcester Road Framingham, MA 01702-5399Mr. William D. MeinertNuclear Engineer Massachusetts Municipal Wholesale Electric Company P.O. Box 426 Ludlow, MA 01056-0426Mr. Kevin H. BronsonGeneral Manager, Plant Operations Entergy Nuclear Operations, Inc.

Pilgrim Nuclear Power Station 600 Rocky Hill Road Plymouth, MA 02360-5508Mr. Michael A. BalduzziSite Vice President Entergy Nuclear Operations, Inc.

Pilgrim Nuclear Power Station 600 Rocky Hill Road Plymouth, MA 02360-5508Mr. Stephen J. BethayDirector, Nuclear Safety Assurance Entergy Nuclear Operations, Inc.

Pilgrim Nuclear Power Station 600 Rocky Hill Road Plymouth, MA 02360-5508Mr. Bryan S. FordManager, Licensing Entergy Nuclear Operations, Inc.

Pilgrim Nuclear Power Station 600 Rocky Hill Road Plymouth, MA 02360-5508

Pilgrim Nuclear Power Station cc:Mr. Gary J. Taylor Chief Executive Officer Entergy Operations 1340 Echelon Parkway Jackson, MS 39213Mr. John T. HerronSr. VP and Chief Operating Officer Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601Mr. Oscar LimpiasVice President, Engineering Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601Mr. Christopher SchwarzVice President, Operations Support Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601Mr. Michael KanslerPresident Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601Mr. John F. McCannDirector, Nuclear Safety Assurance Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601

Ms. Charlene D. Faison Manager, Licensing Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601Mr. Michael J. ColombDirector of Oversight Entergy Nuclear Operations, Inc.

440 Hamilton Avenue White Plains, NY 10601Assistant General CounselEntergy Nuclear Operations, Inc.440 Hamilton Avenue White Plains, NY 10601Ms. Stacey LousteauTreasury Department Entergy Services, Inc.

639 Loyola Avenue New Orleans, LA 70113Mr. James Sniezek5486 Nithsdale Drive Salisbury, MD 21801-2490Mr. Michael D. Lyster5931 Barclay Lane Naples, FL 34110-7306Mr. Garrett D. Edwards814 Waverly Road Kennett Square, PA 19348