ML20237E014

Forwards Request for Addl Info Re Integrated Plant Assessment Rept for Auxiliary Feedwater Sys

ML20237E014
Person / Time
Site:	Calvert Cliffs
Issue date:	08/21/1998
From:	Dave Solorio NRC (Affiliation Not Assigned)
To:	Cruse C BALTIMORE GAS & ELECTRIC CO.
References
TAC-M99215, TAC-MA0295, TAC-MA0296, TAC-MA295, TAC-MA296, NUDOCS 9808280153
Download: ML20237E014 (5)

Text

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August 21, 1998 Mr. Charl;s H. Cruse, Vice President Nuclear Energy Division Baltimore Gas and Electric Company 1650 Calvert Cliffs Parkway Lusby, MD 20657-47027

SUBJECT:

REQUEST FOR ADDITIONAL lt: FORMATION FOR THE REVIEW OF THE CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NOS.1 & 2, INTEGRATED PLANT ASSESSMENT REPORT FOR THE AUXILIARY FEEDWATER SYSTEM (TAC NOS. MA0295, MA0296, AND M99215)

Dear Mr. Cruse:

By letter dated October 22,1997, Baltimore Gas and Electric Company (BGE) submitted for review the Auxiliary Feedwater System (5.1) integrated plant assessment technical report as attached to the " Request for Review and Approval of System and Commodity Reports for License Renewal." BGE requested that the Nuclear Regulatory Commission (NRC) staff review the Auxiliary Feedwater System (5.1) report to determine if the report meets the requirements of 10 CFR 54.21(a), " Contents of application-technical information," and the demonstration required by 10 CFR 54.29(a)(1), " Standards for issuance of a renewed license," to support an application for license renewal if BGE applied in the future. By letter dated April 8,1998, BGE formally submitted its license renewal application.

The NRC staff has reviewed the Auxiliary Feedwater System (5.1) report against the requirements of 10 CFR 54.21(a)(1),10 CFR 54.21(a)(3). By letter dated April 4,1996, the staff approved BGE's methodology for meeting the requirements of 10 CFR 54.21(a)(2). Based on a review of the information submitted, the staff has identified in the enclosure, areas where additional information related to scoping is needed to complete its review. Should the staff have additional information needs related to aging management they will be forwarded under a future correspondence.

Please provide a schedule by letter or telephonically for the submittal of your responses within 30 days of the receipt of this letter. Additionally, the staff would be willing to meet with BGE prior to the submittal of the responses to provide clarifications of the staff's requests for additionalinformation.

Sincerely, David r

ro Manager License Renewal Project Directorate J

J Division of Reactor Program Management Office of Nuclear Reactor Regulation Docket Nos. 50-317 and 50-318

Enclosure:

Request for Additional Information

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Mr. Charles H. Cruse Calvert Cliffs Nuclear Power Plant Baltimore Gas & Electric Company

- Unit Nos.1 and 2 cc:

1 Mr. Joseph H. Walter, Chief Engineer President Public Service Commission of Calvert County Board of Maryland Commissioners Engineering Division i

175 Main Street

- 6 St. Paul Centre Prince Frederick, MD 20678 Baltimore, MD 21202-6806 James P. Bennett, Esquire Kristen A. Burger, Esquire Counsel Maryland People's Counsel Baltimore Gas and Electric Company 6 St. Paul Centre n

P.O. Box 1475 -

Suite 2102 Baltimore, MD 21203 Baltimore, MD 21202-1631

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Jay E. Silberg, Esquire Patricia T. Birnie, Esquire Shaw, Pittman, Potts, and Trowbridge Co-Director 2300 N Street, NW -

Maryland Safe Energy Coalition Washington, DC 20037 P.O. Box 33111

{

Baltimore, MD 21218 j

Mr. Thomas N. Prienett, Director NRM.

Mr. Loren F. Donatell Calvert Cliffs Nuclear Power Plant NRC Technical Training Center 1650 Calvert Cliffs Parkway 5700 Brainerd Road Lusby, MD 20657-4702 Chattanooga, TN 37411-4017 Resident inspector David Lewis U.S. Nuclear Regulatory Commission Shaw, Pittman, Potts, and Trowbridge P.O. Box 287 2300 N Street, NW St. Leonard, MD 20685 Washington, DC 20037 Mr. Richard I. McLean.

Douglas J. Walters l'

Nuclear Programs Nuclear Energy Institute Power Plant Research Program 1776 i Street, N.W.

Maryland Dept. of Natural Resources Suite 400 Tawes State Office Building, B3 Washington, DC 20006-3708 Annapolis, MD 21401 DJW@NEl.ORG l

Regional Administrator, Region I Barth W. Doroshuk l.

U.S. Nuclear Regulatory Commission Baltimore Gas and Electric Company 475 Allendale Road Calvert Cliffs Nuclear Power Plant King of Prussia, PA 19406 1650 Calvert Cliffs Parkway NEF 1st Floor Lusby, Maryland 20657 I

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Distribution-HARD COPY Docket Files PUBLIC PDLR R/F ACRS OGC OEDO R!ll O-16B18 DISTRIBUTION: E-MAIL-FMiraglia (FJM)

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GHolahan (GMH)

SNewberry (SFN)

GBagchi (GXB1)-

RRothman (RLD)

JBrammer (HLB) l CGratton (CXG1) l JMoore (JEM)

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DSolorio (DLS2)

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GHubbard (GTH)

. Slittle (SLL)

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4 REQUEST FOR ADDITIONAL INFORMAIlON I

t' CALVERT CLIFFS NUCLEAR POWER PLANT UNIT NOS.1 & 2 AUXILIARY FEEDWATER SYSTEM INTEGRATED PLANT ASSESSMENT. SECTION 5.1 l

DOCKET NOS. 50 317 AND 50-318 ll.

Section 5.1.1 - Scoolna Regarding the structures and components identified as being within the scope of license renewal for the Auxiliary Feedwater System (AFW), the staff has the following questions:

1.

The licensee's simplified drawing (Figure,5.1-1) and the description of the portion of the AFW system that is within the scope of license renewal in Section 5.1.1.2, including the l

list of the 47 device types on page 5.1-6, were compared with Figure 10-13, " Auxiliary l

Feedwater - Unit 2," (also labeled drawing 84-312, Rev. 2) obtained from the Calvert l

Cliffs Nuclear Power Plant Updated Final Safety Analysis Report. Several components l

identified in Figure 10-13 are not listed as " device types " in Section 5.1.1.2. These components. include the local temperature indicators on the two AFW turbines, the l

steam traps on the piping from the main steam supply lines to each AFW turbine, and the steam supply stop and control valves to each AFW turbine. Nor were the exhaust piping from the AFW turbines to the roof exhausts identified in Section 5.1.

Are these instruments and components within the scope of license renewal? If not, explain why these instruments and components are not within the scope of license renewal. If so, provide a cross reference to where these components are addressed in the license renewal application (LRA) or explain why the scoping process as described in Section 2.0 of LRA did not identify these components / instruments?

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2.

The simplified drawing Figure 5.1-1 and the system interface discussion in Section l

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5.1.1.1 do not provide sufficient detail or are unclear regarding the transitions between

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l the AFW system and the interfacing systems.

For example, in Section 5.1.1.1, under System Interfaces. the interface for the Main j

Steam system is defined as "The turbine throttle valves through the govemor valves to 1

the turbine inlet." However, Figurc 5.1-1 shows the interface for the Main Steam System extending back beyond the throttle valve to a normally closed (and undefined) valve in the Main Steam system. This same question applies to other systems interfaces in Figure 5.1-1, such as Auxiliary Steam.

Please provide a modified version of Figure 5.1-1 or use markups of other existing plant drawings that have sufficient detail such that the transition (focusing on components when applicable) between the AFW system and its interfacing systems can be ascertained by the staff.

3.

Page 5.1-6 includes the list of AFW system device types designated as within the scope of license renewal because they have at least one intended function. Several of these Enclosure

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device types pertain to the monitoring of condensate levelin the condensate storage

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tank (CST) No.12 and are not included on the simplified drawing.

Please provide a more detailed drawing or an additional description of the CST components that support this intended function. Markups of existing drawings would be an alternative which would probably provide sufficient detail. Additionally, include the level indication piping and components and indicate interfaces with other support systems (if any) in the drawings and/or descriptions provided to the staff.

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