ML20195C717
| ML20195C717 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 11/12/1998 |
| From: | Cruse C BALTIMORE GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9811170200 | |
| Download: ML20195C717 (6) | |
Text
i CHCLES II. CROSE Baltimore Gas and Electric Company Vice President Calvert Cliffs Nuclear Power Plant Nuclear Energy 1650 Calvert Cliffs Parkway Lusby, Maryland 20657 I
410 495 4455 November 12,1998 l
U. S. Nuclear Regulatory Commission Washington, DC 20555 i
ATTENTION:
Document Control Desk
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318 Response to Request for Additional Information for the Re /iew of Calvert Cliffs j
Nuclear Power Plant, Units 1 & 2, Integrated Plant Ass <;ssment Report for the Saltwater System. and Errata I
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REFERENCES:
(a)
Letter from Mr. C. H. Cruse (BG", to NRC Document Control Desk, dated April 8,1998," Application foi License Renewal" (b)
Letter from Mr. D. L. Solorio (NRC) to Mr. C. H. Cruse (BGE),
September 3,1998, " Request for Additional Information for the Review of the Calvert Cliffs Nuclear Power Plant, Units 1 & 2, Integrated Plant Assessment, Sections 4.1,4.2,5.2,5.7,5.15, and 5.16" (c)
Letter from Mr. D. L. Solorio (NRC) to Mr. C. H. Cruse (BGE),
September 24,1998, " Renumbering of NRC Requests for Additional Information on Calvert Cliffs Nuclear Power Plant License Renewal Application Submitted by the Baltimore Gas and Electric Company" Reference (a) forwarded the Baltimore Gas and Electric Company (BGE) license renewal application (LRA).
Reference (b) forwarded questions from NRC staff on six sections of the BGE LRA.
Reference (c) forwarded a numbering system for tracking BGE's response to all of the BGE LRA requests for additional information and the resolution of the responses. Attachment (1) provides our responses to the Saltwater System questions contained in Reference (b). The questions are renumbered in accordance with Reference (c). Attachment (2) provides errata to Section 5.16 of the BGE LRA, Saltwater System.
9811170200 981112 f
PDR ADOCK 050 7
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Document Control Desk
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Should you have further questions regarding this matter, we will be pleased to discuss them with you.
I Very truly yours,
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bW' tre y STATE OF MARYLAND
- TO WIT:
l COUNTY OF CALVERT I, Charles II. Cruse, being duly sworn, state that I am Vice President, Nuclear Energy Division, l
Baltimore Gas and Electric Company (BGE), and that I am duly authorized to execute and file this l
response on behalf of BGE. To the best of my knowledge and belief, the statements contained in this document are true and correct. To the extent that these statements are not based on my personal knowledge, they are based upon information provided by other BGE employees and/or consultants. Such information has been reviewed in accordance with company practice and I believe it to reliable.
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Subscribed and sworn before me, a Notary Public in and for the State of Maryland and County of (d.IL/ATJ
. this /hday of /lcL6m /#v,1998.
WITNESS my Hand and Notarial Seal:
A1/h >
ft/1 LL Notary Public A!/!2O3 My Commission Expires:
Date CHC/KRE/ dim Attachments: (1) Response to Request for Additional Information; Integrated Plant Assessment Report for the Chemical and Volume Control System (2) Errata to Section 5.16, Saltwater System; License Renewal Application cc:
R. S. Fleishman, Esquire C. I. Grimes, NRC J. E. Silberg, Esquire D. L. Solorio, NRC S. S. Bajwa, NRC Resident Inspector, NRC A. W. Dromerick, NRC R. I. McLean, DNR H. J, Miller, NRC J. H. Walter, PSC i
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ATTACHMENT (1)
RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION; INTEGRATED PLANT ASSESSMENT REPORT FOR THE SALTWATER SYSTEM I
j Baltimore Gas and Electric Company Calvert Cliffs Nuclear Power Plant November 12,1998
l ATTACHMENT (1) l RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION; i
INTEGRATED PLANr ASSESSMENT REPORT FOR THE SALTWATER SYSTEM NRC Ouestion No. 5.16.4 If an unacceptable degree ofinternal pitting were discovered while examining a saltwater system group 1 component, describe how Baltimore Gas and Electric Company (BGE) would resolve that condition, in accordance with established procedures, through final disposition. Include a discussion of how augmented inspection might be developed.
l BGE Response i
As described on page 5.16-13 of the License Renewal Application (LRA), a new plant program to discover degradation will be developed to inspect representative Group I components. The program is an Age-Related Degradation Inspection Program.. If discovery of unacceptable degradation occurs, the site Corrective Actions Program will be invoked. Detailed information concerning the site Corrective Actions Program is readily available onsite for review.
NRC Ouestion No. 5.16.5 Provide a summary of the buried piping inspection program as applied to the saltwater system (groups 1 and 2). In the discussion include details of:
a) inspection scope basis; b) inspection methods used; c) frequency ofinspections and the rationale.
BGE Response Periodic inspection of the Saltwater piping's corrosion-resistant interior linings, as described on page 5.16-7, provides an effective means to discover and manage aging effects. For this reason, the buried piping inspection program does not apply to the Saltwater System. All programs credited for managing aging of Saltwater System components are identified in Table 5.16-5 of the LRA on page 5.16-34.
NRC O===elam No. 5.16.6 Page 5.16-16 of the application indicates that the buried saltwater system piping is protected from corrosion, in part, by an impressed current cathodic protection program. However, the application does not indicate that the cathodic protection program will be relied on to manage aging of buried piping for license renewal.
Clarify whether BGE relies on cathodic protection for buried piping. If cathodic protection is relied l
upon for aging management, provide a summary of the program, describe the related inspection and
. verification activities, and describe corrective measures, if any, resulting from operating experience.
BGE Response The programs credited to manage aging effects of the buried piping, device type -LC in Group 2, are described on pages 5.16-17 and 5.16-18 of the LRA. A summary of these programs is contained in L
_ Table 5.16-5. The cathodic protection system is not a credited aging management program.
The statements on page 5.16-16 about the impressed current cathodic protection system do not mean
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the buried saltwater piping is directly connected to the cathodic protection system.
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ATTACHMENT (2) a ERRATA TO SECTION 5.16, SALTWATER SYSTEM; LICENSE RENEWAL APPLICATION l
Baltimore Gas and Electric Company Calvert Cliffs Nuclear Power Plant November 12,1998
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ATTACHMENT (2)
ERRATA TO SECTION 5.16, SALTWATER SYSTEM; LICENSE RENEWAL APPLICATION The following editorial corrections apply to Section 5.16 of the Baltimore Gas and Electric Company License Renewal Application:
- *- On page 5.16-22, in the very middle of the bulleted paragraph, "(20121022)" should read j
"(20191022)."
On page 5.16-34, Table 5.16 5, in the first line item labeled " Modified," the first line of repetitive tasks should read "10122063 through 10122068" vice "10122063 through 10120268."
On page 5.16-34, Table 5.16-5, in the last line item, " Modified" should be " Existing" and
"(modification needed)" should be disregarded.
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