ML20249C518
| ML20249C518 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 06/25/1998 |
| From: | Cruse C BALTIMORE GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9806300224 | |
| Download: ML20249C518 (2) | |
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CH4nt.Es II. CnusE Baltimore Gas and Electric Company Vice President Calvert Cliffs Nuclear Power Plant f)iuclear Energy 1650 Calvert Cliffs Parkway Lusby. Maryland 20657 410 495-4455 June 25,1998 U. S. Nuclear Regulatory Commiuion Washington, DC 20555 ATTENTION:
Document Control Desk SUIMECT:
Calvert Cliffs Nuclear Power Plant Unit No.1; Docket No. 50-317 Extension of the Unit 1 Second Ten-Year Inservice Insocction Interval
REFERENCES:
(a)
Letter from Mr. C. H. Cruse (BGE) to NRC Document Control Desk, dated April 28,1998, " Relief From ASME Code Requirements: Unit 1 Second Ten-Year Inservice Inspection Interval" (b)
Letter from Dr. W. D. Beckner (NRC) to J. W. Yelverton (Entergy Operations, Inc.), dated August 2,1994, " Interim Extension of 120-Month Interval for Inservice Inspection and Inservice Testing (ISI/IST)
Programs for Arkansas Nuclear One, Unit 1 (TAC No. M89337)"
This letter presents an amendment to the Second Ten-Year Inservice Inspection Interval (ISI) extension request proposed in Reference (a). In Reference (a), Baltimore Gas and Electric Company stated that a reason for requesting an extension of the Unit 1 Second Ten-Year Interval was to allow time for us to take advantage of the Nuclear Regulatory Commission's (NRC's) proposed rulemaking.
That rulemaking would allow use of American Society of Mechanical Engineers (ASME)Section XI,1995 Edition through the 1996 Addenda. After conversations with NRC staff, we have concluded that the timing of the issuance of the rulemaking may not be beneficial to our request and have re-evaluated our original request.
Accordingly, we are amending our request to propose an alternative to the requirements of
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10 CFR 50.55a(g)(4)(automatic compliance with the latest approved edition of the ASME Code every g
120 months). This proposal is allowed by 10 CFR 50.55a(a)(3). The proposed alternative would allow 0
an extension to the Second Ten-Year ISI Interval to June 1999, and to continue using the ASME Code,Section XI,1983 Edition (with Summer 1983 Addenia) during the period of this extension. We believe the use of the 1983 Edition of the Code (with Summer 1983 Adderda) during the extension period meets the requirements of 10 CFR 50.55a(a)(3) for ensuring an acceptable level of quality and safety, as it has 1
in the current Second Ten-Year Interval. This request is similar to Entergy Operation's request that was approved by the NRC in Reference (b).
T' 9006300224 900625 PDR ADOCK 05000317 0
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Document Control Desk
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June 25,1998 Page 2 l
l Since the date of the change in the Code of Federal Regulations regarding incorporation of ASME Section XI,1995 Edition with the 1996 Addenda is no longer certain, we have begun *he process of evaluating editions of ASME Section XI published later than the 1989 Edition to apply to the third ISI intervals of both units at Calvert Cliffs Nuclear Power Plant. We expect to submit a line-by-line analysis of a proposed alternative Code edition by January 1999. This submittal will include the program plan for the third ISI interval for both Units I and 2. We will be updating internal programs, procedures, and personnel qualifications for the third ISI interval after the submittal, and expect to have that completed by June 1999. The approval of our proposed alternative to 10 CFR 50.55a (g)(4) will allow us time to complete this work.
There are currently no ASME Section XI ISI examinations scheduled for Unit I between June 1998 and June 1999. During this period, repairs, replacements, and pre-service examinations will continue to be performed using the ASME Section XI 1983 Edition (with Summer 1983 Addenda) and code cases and relief requests approval by the NRC.
This proposed alternative has been reviewed by our Plant Operations and Safety Review Committee and they concluded that extending the Second Ten-Year ISI Interval using the 1983 Edition of Section XI (with Summer 1983 Addenda) of the ASME Code provides an adequate level of quality and safety.
Therefore, we cor:lude that approval of our proposed alternative to extend the Unit 1 Second Ten-Year ISI Interval presents an adeque.te level of quality and safety, and that denial would constitute an unnecessary hardship to Baltimore Gas and Electric Company. We realize that the requirenunts of L
ASME Code IWA-2400(c) will result in a shortening of the third ISI interval. If this proposal is approved, the Un't 1 Third Ten-Year ISI Interval will be from June 1999 to June 2008. We request that the NRC approve this proposal by June 30,1998.
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Should you have questions regarding this matter, we will be pleased to discuss them with you.
I Very truly yours, i
for o
C. H. Cruse Vice President - Nuclear Energy CHC/EMT/bjd cc:
R. S. Fleishman, Esquire H. J. Miller, NRC J. E. Silberg, Esquire Resident Inspector, NRC S. S. Bajwa, NRC R. I. McLean, DNR A. W. Dromerick, NRC.
J. H. Walter, iSC j
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