Letter Sequence Approval |
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MONTHYEARML0204601192002-02-13013 February 2002 Request for Withholding Information from Public Disclosure, MB3756 Project stage: Withholding Request Acceptance ML0210204302002-04-0505 April 2002 Issuance of Amendment (Tac No. MB3756) Project stage: Approval ML0208507152002-04-0505 April 2002 Issuance of Amendment, Revises Safety Limit Minimum Critical Power Ratio for Single Loop Operation to Reflect Results of Cycle-Specific Calculation for Unit 1 Operating Cycle 21 Project stage: Approval 2002-02-13
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Category:Letter
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[Table view] Category:License-Operating (New/Renewal/Amendments) DKT 50
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[Table view] Category:Safety Evaluation
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[Table view] |
Text
April 5, 2002 Mr. H. L. Sumner, Jr.
Vice President - Nuclear Hatch Project Southern Nuclear Operating Company, Inc.
Post Office Box 1295 Birmingham, Alabama 35201-1295
SUBJECT:
EDWIN I. HATCH NUCLEAR PLANT, UNIT 1 RE: ISSUANCE OF AMENDMENT (TAC NO. MB3756)
Dear Mr. Sumner:
The Nuclear Regulatory Commission has issued the enclosed Amendment No. 229 to Facility Operating License DPR-57 for the Edwin I. Hatch Nuclear Plant, Unit 1. The amendment consists of changes to the Technical Specifications in response to your application dated January 4, 2002, as supplemented by letter dated March 15, 2002.
The amendment revises the Safety Limit Minimum Critical Power Ratio for single loop operation to reflect the results of a cycle-specific calculation for Unit 1 Operating Cycle 21.
A copy of the related Safety Evaluation is also enclosed. A Notice of Issuance will be included in the Commissions biweekly Federal Register notice.
Sincerely,
/Original signed by:/
Leonard N. Olshan, Senior Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-321
Enclosures:
- 1. Amendment No. 229 to DPR-57
- 2. Safety Evaluation cc w/encls: See next page
April 5, 2002 Mr. H. L. Sumner, Jr.
Vice President - Nuclear Hatch Project Southern Nuclear Operating Company, Inc.
Post Office Box 1295 Birmingham, Alabama 35201-1295
SUBJECT:
EDWIN I. HATCH NUCLEAR PLANT, UNIT 1 RE: ISSUANCE OF AMENDMENT (TAC NO. MB3756)
Dear Mr. Sumner:
The Nuclear Regulatory Commission has issued the enclosed Amendment No. 229 to Facility Operating License DPR-57 for the Edwin I. Hatch Nuclear Plant, Unit 1. The amendment consists of changes to the Technical Specifications in response to your application dated January 4, 2002, as supplemented by letter dated March 15, 2002.
The amendment revises the Safety Limit Minimum Critical Power Ratio for single loop operation to reflect the results of a cycle-specific calculation for Unit 1 Operating Cycle 21.
A copy of the related Safety Evaluation is also enclosed. A Notice of Issuance will be included in the Commissions biweekly Federal Register notice.
Sincerely,
/RA/
Leonard N. Olshan, Senior Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-321
Enclosures:
- 1. Amendment No. 229 to DPR-57
- 2. Safety Evaluation cc w/encls: See next page DISTRIBUTION:
PUBLIC CHawes SCahill, RII PDII-1 R/F OGC HBerkow ACRS RLaufer GHill (4)
LOlshan WBeckner Package: ML021050042 *No major changes to SE Accession Number: ML020850715 TS: ML021020430 **See previous concurrence OFFICE PDII-1/PM PDII-1/LA OGC** PDII-1/(A)SC DSSA/SRXB*
NAME LOlshan CHawes JHeck RLaufer RCaruso DATE 4/5/02 4/5/02 4/1/02 4/5/02 3/19/02 OFFICIAL RECORD COPY
SOUTHERN NUCLEAR OPERATING COMPANY, INC.
GEORGIA POWER COMPANY OGLETHORPE POWER CORPORATION MUNICIPAL ELECTRIC AUTHORITY OF GEORGIA CITY OF DALTON, GEORGIA DOCKET NO. 50-321 EDWIN I. HATCH NUCLEAR PLANT, UNIT 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 229 License No. DPR-57
- 1. The Nuclear Regulatory Commission (the Commission) has found that:
A. The application for amendment to the Edwin I. Hatch Nuclear Plant, Unit 1 (the facility)
Facility Operating License No. DPR-57 filed by Southern Nuclear Operating Company, Inc. (the licensee), acting for itself, Georgia Power Company, Oglethorpe Power Corporation, Municipal Electric Authority of Georgia, and City of Dalton, Georgia (the owners), dated January 4, 2002, as supplemented by letter dated March 15, 2002, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations as set forth in 10 CFR Chapter I; B. The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C. There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations set forth in 10 CFR Chapter I; D. The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E. The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.
- 2. Accordingly, the license is hereby amended by page changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. DPR-57 is hereby amended to read as follows:
(2) Technical Specifications The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised through Amendment No. 229
, are hereby incorporated in the license. Southern Nuclear shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.
- 3. This license amendment is effective as of its date of issuance and shall be implemented within 30 days of issuance.
FOR THE NUCLEAR REGULATORY COMMISSION
/RA/
Richard J. Laufer, Acting Chief, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation
Attachment:
Technical Specification Changes Date of Issuance: April 5, 2002
ATTACHMENT TO LICENSE AMENDMENT NO. 229 FACILITY OPERATING LICENSE NO. DPR-57 DOCKET NO. 50-321 Replace the following page of the Appendix A Technical Specifications with the attached revised page. The revised page is identified by amendment number and contains marginal lines indicating the areas of change.
Remove Insert 2.0-1 2.0-1
SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NO. 229 TO FACILITY OPERATING LICENSE DPR-57 SOUTHERN NUCLEAR OPERATING COMPANY, INC., ET AL.
EDWIN I. HATCH NUCLEAR PLANT, UNIT 1 DOCKET NO. 50-321
1.0 INTRODUCTION
By letter dated January 4, 2002, as supplemented by letter dated March 15, 2002, Southern Nuclear Operating Company, Inc. (Southern Nuclear, the licensee), et al., proposed license amendment to change the Technical Specifications (TS) for the Edwin I. Hatch Nuclear Plant, Unit 1. The proposed changes would revise the Safety Limit Minimum Critical Power Ratio (SLMCPR) for single loop operation (SLO) to reflect the results of a cycle-specific calculation performed for Cycle 21. The supplemental letter dated March 15, 2002, provided clarifying information that did not change the scope of the January 4, 2002, application nor the initial proposed no significant hazards consideration determination.
2.0 EVALUATION The licensee proposed to change the SLMCPR value in TS 2.1.1.2 for Hatch, Unit 1, Cycle 21 operation from 1.08 to 1.09 for SLO with the reactor vessel steam dome pressure greater than or equal to 785 psig and core flow greater than or equal to 10 percent of rated core flow. No change is needed for two-loop operation.
The licensee described the approved methodologies used to calculate the SLMCPR value for the proposed TS change. The Cycle 21 SLMCPR analysis was performed by Global Nuclear Fuel (GNF) using plant- and cycle-specific fuel and core parameters, and NRC-approved methodologies including NEDC-32505P, Revision 1 (R-Factor Calculation Method for GE11, GE12 and GE13 Fuel), NEEDO-10958-A (GETAB), NEDC-32601P(Methodology and Uncertainties for Safety Limit MCPR Evaluations), NEDC-32694P (Power Distribution Uncertainties for Safety Limit MCPR Evaluation), and Amendment 25 to NEDE-24011-P-A (GESTAR II).
The staff has reviewed: (1) the justification for the change on the SLMCPR from 1.08 to 1.09 for SLO using the approach stated in Amendment 25 to GESTAR II; (2) the issue related to the staffs March 2001 audit on GNF data bases for GEXL14 correlation; and (3) the applicability of the previous approved methodologies to GE14 fuel.
The NRC staff identified discrepancies in data bases while conducting an audit on GNFs GEXL correlation development for the Duane Arnold plant-specific power uprate application in
March 2001. The details of the deficiencies are described in a letter to the Duane Arnold licensee dated June 4, 2001. Based on the findings of that audit, the NRC staff requested that the Hatch licensee provide a justification why the overall GEXL14 correlation uncertainty remains valid. In its response to the NRC staffs request for additional information dated March 15, 2002, the licensee provided the results of additional analyses that indicated there is sufficient conservatism for Hatch, Unit 1 Cycle 21 SLMCPR values since no top-peaked power shape is expected during Hatch, Unit 1 Cycle 21 operation. The NRC staff reviewed the licensees evaluation and found it to be acceptable since NRC-approved methodologies were used.
To address the audit issue about the applicability of the previously approved methodologies to GE14 fuel, GNF submitted two letters for the staffs review: (1) FLN-2001-016, from Glen A.
Watford to USNRC, Confirmation of 10x10 Fuel Design Applicability to Improved SLMCPR, Power Distribution and R-Factor Methodologies, dated September 24, 2001, and (2)
FLN-2001-017, from Glen A. Watford to USNRC, Confirmation of Applicability of GEXL14 Correlation and Associated R-Factor Methodology for Calculating SLMCPR Values in Core Containing GE14 Fuel, dated October 1, 2001. The NRC staff reviewed the GNF evaluation contained in the two letters and found the approach, supplemented by the approach dealing with a proposed higher interim GEXL14 correlation uncertainty discussed in the licensees RAI response, dated March 15, 2002, is acceptable for this application because NRC-approved methodologies were used and GNF committed to perform additional tests.
Based on the results of the review of the January 4 and March 15, 2002, submittals, the staff found that the SLMCPR analysis for Hatch, Unit 1 Cycle 21 operation using the plant- and cycle-specific parameters in conjunction with the approved method is acceptable. The proposed Cycle 21 SLMCPR values will ensure that 99.9 percent of the fuel rods in the core will not experience boiling transition, which satisfies the requirements of General Design Criterion 10 of Appendix A to 10 CFR Part 50 regarding acceptable fuel design limits. The staff has also concluded that the justification for analyzing and determining the SLMCPR value of 1.09 for SLO operation and no change of 1.07 value for two recirculation loop operation is acceptable for Hatch, Unit 1 Cycle 21 since approved methodologies are used. Also, the analysis shows that a top-peaked power shape related to the issue of the data bases for GEXL 14 correlation is not applicable to, and does not have any impact on, Hatch, Unit 1 Cycle 21 operation.
3.0 STATE CONSULTATION
In accordance with the Commission's regulations, the Georgia State official was notified of the proposed issuance of the amendment. The State official had no comments.
4.0 ENVIRONMENTAL CONSIDERATION
The amendment changes a requirement with respect to the installation or use of facility components located within the restricted area as defined in 10 CFR Part 20. 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 (67 FR 5333). 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.
5.0 CONCLUSION
The Commission has concluded, based on the considerations discussed above, that: (1) there is 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 Commissions 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 Contributor: T. Huang Date: April 5, 2002
Edwin I. Hatch Nuclear Plant cc:
Mr. Ernest L. Blake, Jr. Charles A. Patrizia, Esquire Shaw, Pittman, Potts Paul, Hastings, Janofsky & Walker and Trowbridge 10th Floor 2300 N Street, NW. 1299 Pennsylvania Avenue Washington, DC 20037 Washington, DC 20004-9500 Mr. D. M. Crowe Chairman Manager, Licensing Appling County Commissioners Southern Nuclear Operating County Courthouse Company, Inc. Baxley, Georgia 31513 P. O. Box 1295 Birmingham, Alabama 35201-1295 Mr. J. D. Woodard Executive Vice President Resident Inspector Southern Nuclear Operating Plant Hatch Company, Inc.
11030 Hatch Parkway N. P. O. Box 1295 Baxley, Georgia 31531 Birmingham, Alabama 35201-1295 Mr. Charles H. Badger Mr. P. W. Wells Office of Planning and Budget General Manager, Edwin I. Hatch Room 610 Nuclear Plant 270 Washington Street, SW. Southern Nuclear Operating Atlanta, Georgia 30334 Company, Inc.
U.S. Highway 1 North Harold Reheis, Director P. O. Box 2010 Department of Natural Resources Baxley, Georgia 31515 205 Butler Street, SE., Suite 1252 Atlanta, Georgia 30334 Mr. L. M. Bergen Resident Manager Steven M. Jackson Oglethorpe Power Corporation Senior Engineer - Power Supply Edwin I. Hatch Nuclear Plant Municipal Electric Authority P. O. Box 2010 of Georgia Baxley, Georgia 31515 1470 Riveredge Parkway, NW Atlanta, Georgia 30328-4684