ML20135E732

Forwards Request for Addl Info Re Proposed TS Changes to Reactor Coolant Sys Flow Limit

ML20135E732
Person / Time
Site:	Calvert Cliffs
Issue date:	03/05/1997
From:	Dromerick A NRC (Affiliation Not Assigned)
To:	Cruse C BALTIMORE GAS & ELECTRIC CO.
References
TAC-M97855, NUDOCS 9703100139
Download: ML20135E732 (4)

Text

. _ ._ .

Mr. Charles H. Cruse

• Vice President - Nuclear Energy flarch 5,1997 Baltimore Gas and Electric Company Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby, MD 20657-4702

SUBJECT:

REQUEST.FOR ADDITIONAL INFORMATION - PROPOSED TECHNICAL SPECIFICATION CHANGES TO REACTOR COOLANT SYSTEM FLOW LIMIT, CALVERT CLIFFS NUCLEAR POWER PLANT, UNITS 1 AND 2 (TAC NOS. M97855 AND M97856)

Dear Mr. Cruse:

By letter dated January 31, 1997, the Baltimore Gas and Electric Company, the licensee, pursuant to 10 CFR 50.90, requested an amendment to Facility Operating License DPR-53 and DPR-69 for the Calvert Cliffs, Units 1 and 2, respectively. The amendment proposed a modification to Technical Specifications for a reduction of the total reactor coolant system flow rate lower limit by 30,000 gallons per minute (gpm) from 370,000 gpm. The NRC staff is reviewing your submittal and has determined that additional information is required for us to complete our review. The information requested is addressed in the enclosure. In order to meet your schedule, the staff requests that the additional information be provided by March 19, 1997.

If you have any questions regarding this matter, please contact me at 301-415-3473.

Sincerely, ORIGINAL SIGNED BY:

Alexander W. Dromerick, Senior Project Manager Project Directorate I-l Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos. 50-317 and 50-318

Enclosure:

Request for Additional Information cc w/ encl: See next page DISTRIBUTION:

Docket File SVarga Slittle ACRS '

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I o%,g / March 5, 1997 Mr. Charles H. Cruse  !

Vice President - Nuclear Energy '

Baltimore Gas and Electric Company l Calvert Cliffs Nuclear Power Plant l 1650 Calvert Cliffs Parkway Lusby, MD 20657-4702

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - PROPOSED TECHNICAL i SPECIFICATION CHANGES TO REACTOR COOLANT SYSTEM FLOW LIMIT, CALVERT  ;

CLIFFS NUCLEAR F0WER PLANT, UNITS 1 AND 2 (TAC NOS. M97855 AND M97856)

Dear Mr. Cruse:

By letter dated January 31, 1997, the Baltimore Gas and Electric Company, the licensee, pursuant to 10 CFR 50.90, requested an amendment to Facility Operating License DPR-53 and DPR-69 for the Calvert Cliffs, Units 1 and 2, respectively. The amendment proposed a modification to Te. anical Specifications for a reduction of the total reactor coolant system flow rate lower limit by 30,000 gallons per minute (gpm) from 370,000 gpm. The NRC staff is reviewing your submittal and has determined that additional information is required for us to complete our review. The information requested is addressed in the enclosure. In order to meet your schedule, the staff requests that the cdditional information be provided by March 19, 1997.

If you have any questions regarding this matter, please contsct me at 301-415-3473.

Sincerely,

' U Alexander W. Dromerick, Senior Project Manager Project Directorate I-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos. 50-317 and 50-318

Enclosure:

Request for Additional Information cc w/ encl: See next page

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REQUEST FOR ADDITIONAL INFORMATION PROPOSED AMENDMENT FOR REDUCED RCS FLOW CALVERT CLIFFS NUCLEAR POWER PLANT. UNITS 1 AND 2

1. All revised accident analyses must assess the consequences of the accident with respect to GDC 19. Please transmit the assumptions and dose associated with your analyses to demonstrate that GDC 19 is met.

2. The January 31, 1997, submittal contained no dose assessments for either i

the SGTR or the rod ejection accidents, yet it would appear that the consequences would be increased from previous analyses as a result of the increased plugging. Provide the assumptions and the dose assessments for the SGTR and the rod ejection accidents with the increased steam generator tube plugging.

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4 Enclosure 1

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1 l ? t l Mr. Charles H. Cruse Calvert Cliffs Nuclear Power Plant Baltimore Gas & Electric Company Unit Nos. I and 2 I cc:

President Mr. Joseph H. Walter, Chief Engineer Calvert County Board of Public Service Commission of Commissioners Maryland 175 Main Street Engineering Division  :

Prince Frederick, MD 20678 6 St. Paul Centre Baltimore, MD 21202-6806 James P. Bennett, Esquire Counsel Kristen A. Burger, Esquire Baltimore Gas and Electric Company Maryland People's Counsel P.O. Box 1475 6 St. Paul Centre Baltimore, MD 21203 Suite 2102 Baltimore, MD 21202-1631 Jay E. Silberg, Esquire Shaw, Pittman, Potts, and Trowbridge Patricia T. Birnie, Esquire 2300 N Street, NW Co-Director Washington, DC 20037 Maryland Safe Energy Coalition P.O. Box 33111 Mr. Terrence J. Camilleri, Director, Baltimore, MD 21218 NRM Calvert Cliffs Nuclear Power Plant Mr. Larry Bell 1650 Calvert Cliffs Parkway NRC Technical Training Center Lusby, MD 20657-4702 5700 Brainerd Road Chattanooga, TN 37411-4017 .

Resident Inspector l U.S. Nuclear Regulatory Commission P.O. Box 287 St. Leonard, MD 20685 Mr. Richard I. McLean Administrator - Radioecology Department of Natural Resources 580 Taylor Avenue Tawes State Office Building, B3 Annapolis, MD 21401 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 i

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