ML020290505

Request for Additional Information Related to Request for Review and Approval of Design Basis Change Regarding Realignment of Refueling Water Storage Pool Boundary Isolation Valves to the Purification System

ML020290505
Person / Time
Site:	Waterford
Issue date:	01/29/2002
From:	Kalyanam N NRC/NRR/DLPM/LPD4
To:	Herron J Entergy Nuclear Generation Co
References
TAC MB1688
Download: ML020290505 (5)

Text

January 29, 2002 Mr. John T. Herron Vice President Operations Entergy Operations, Inc.

17265 River Road Killona, LA 70066-0751

SUBJECT:

WATERFORD STEAM ELECTRIC STATION, UNIT 3 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO REQUEST FOR REVIEW AND APPROVAL OF DESIGN BASIS CHANGE REGARDING REALIGNMENT OF REFUELING WATER STORAGE POOL (RWSP) BOUNDARY ISOLATION VALVES TO THE RWSP PURIFICATION SYSTEM (TAC NO. MB1688).

Dear Mr. Herron:

By letter dated April 2, 2001, Entergy Operations, Inc. requested review and approval, pursuant to 10 CFR 50.59, of changes to the Waterford Steam Electric Station, Unit 3, design basis as described in the Final Safety Analysis Report for which it has been determined an unreviewed safety question exists. The change concerns design requirements for the alignment of the RWSP boundary isolation valves to the RWSP Purification System.

After reviewing your request, the Nuclear Regulatory Commission staff has determined that additional information is required to complete the review. On January 22, 2002, we discussed this information with your staff by telephone and they agreed to provide the additional information requested in the enclosure within 30 days of receipt of this letter.

If you have any questions, please call me at (301) 415-1480.

Sincerely,

/RA/

N. Kalyanam, Project Manager, Section 1 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-382

Enclosure:

Request for Additional Information cc: See next page

January 29, 2002 Mr. John T. Herron Vice President Operations Entergy Operations, Inc.

17265 River Road Killona, LA 70066-0751

SUBJECT:

WATERFORD STEAM ELECTRIC STATION, UNIT 3 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO REQUEST FOR REVIEW AND APPROVAL OF DESIGN BASIS CHANGE REGARDING REALIGNMENT OF REFUELING WATER STORAGE POOL (RWSP) BOUNDARY ISOLATION VALVES TO THE RWSP PURIFICATION SYSTEM (TAC NO. MB1688).

Dear Mr. Herron:

By letter dated April 2, 2001, Entergy Operations, Inc. requested review and approval, pursuant to 10 CFR 50.59, of changes to the Waterford Steam Electric Station, Unit 3, design basis as described in the Final Safety Analysis Report for which it has been determined an unreviewed safety question exists. The change concerns design requirements for the alignment of the RWSP boundary isolation valves to the RWSP Purification System.

After reviewing your request, the Nuclear Regulatory Commission staff has determined that additional information is required to complete the review. On January 22, 2002, we discussed this information with your staff by telephone and they agreed to provide the additional information requested in the enclosure within 30 days of receipt of this letter.

If you have any questions, please call me at (301) 415-1480.

Sincerely,

/RA/

N. Kalyanam, Project Manager, Section 1 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-382

Enclosure:

Request for Additional Information cc: See next page DISTRIBUTION PUBLIC PDIV-1 r/f Rids OgcRp RidsAcrsAcnwMailCenter RidsNrrDlpmLpdiv1 (RGramm) RidsNrrPMNKalyanam RidsNrrLADJohnson RidsRgn4MailCenter (KBrockman) J. Bongarra Accession No.: ML020290505 OFFICE PDIV-1/PM PDIV-1/LA PDIV-1/SC NAME NKalyanam DJohnson RGramm DATE 01/29/02 01/29/02 01/29/02 OFFICIAL RECORD COPY

REQUEST FOR ADDITIONAL INFORMATION RELATED TO REQUEST FOR REVIEW AND APPROVAL OF DESIGN BASIS CHANGE REGARDING REALIGNMENT OF REFUELING WATER STORAGE POOL (RWSP) BOUNDARY ISOLATION VALVES TO THE RWSP PURIFICATION SYSTEM ENTERGY OPERATIONS, INC.

WATERFORD STEAM ELECTRIC STATION, UNIT 3

1. Page 4 of 17, Attachment 1 - please explain what is meant by, ...stationing a dedicated operator in the vicinity of the isolation valves who is in communication with the control room and available to secure the system lineup. Specifically, where is this operator located in relation to the valves? Per figure 6.2-35, how far are valves FS423 and FS404 from one another? In the walkdown and American National Standards Institute (ANSI) 58.8 calculation, did the times specified (i.e., 11 minutes and 54 minutes, respectively) include securing both valves?

2. Page 10 of 17, Attachment 1 - ANSI 58.8 calculations. The calculated time of 54 minutes does not appear to take into consideration the fixed sub-interval time of 30 minutes that is specified by ANSI 58.8, "... If safety-related operator actions are performed outside of the control room, the fixed sub-interval shall be extended to 30 minutes to allow the operator sufficient time to make the necessary preparations and to reach the location at which the action is to be performed. Per paragraph 4.2 of ANSI 58.8 (1984), ...each safety-related and required operator action... shall have a TI operator calculated for it (this includes a value for the fixed sub-interval). Please explain how the times associated with the various actions on page 10 of 17 were derived, with respect to ANSI 58.8 guidance.

3. Page 11 of 17, Attachment 1 - please describe how the actual plant walkdown was conducted, e.g., who participated in the walkdown - Were they qualified remote operator(s) or training staff? How many times was the walkdown conducted and how many qualified operators participated? Were there any failures? Were both valves isolated in a total of 11 minutes as part of the walkdown? What is involved with actually isolating the valves, i.e., are any tools required, ladders for access, chains to be removed/manipulated, etc? Was the walkdown accomplished by personnel with prior knowledge of what they were being asked to accomplish or were they naive to the scenario?

Waterford Generating Station 3 cc:

Mr. Michael E. Henry, Administrator Regional Administrator, Region IV and State Liaison Officer U. S. Nuclear Regulatory Commission Department of Environmental Quality 611 Ryan Plaza Drive, Suite 1000 P. O. Box 82135 Arlington, TX 76011 Baton Rouge, LA 70884-2135 Parish President Council Vice President, Operations Support St. Charles Parish Entergy Operations, Inc. P. O. Box 302 P. O. Box 31995 Hahnville, LA 70057 Jackson, MS 39286-1995 Executive Vice-President Director and Chief Operating Officer Nuclear Safety Assurance Entergy Operations, Inc.

Entergy Operations, Inc. P. O. Box 31995 17265 River Road Jackson, MS 39286-1995 Killona, LA 70066-0751 Chairman Wise, Carter, Child & Caraway Louisiana Public Services Commission P. O. Box 651 Baton Rouge, LA 70825-1697 Jackson, MS 39205 General Manager Plant Operations Waterford 3 SES Entergy Operations, Inc.

17265 River Road Killona, LA 70066-0751 Licensing Manager Entergy Operations, Inc.

17265 River Road Killona, LA 70066-0751 Winston & Strawn 1400 L Street, N.W.

Washington, DC 20005-3502 Resident Inspector/Waterford NPS P. O. Box 822 Killona, LA 70066-0751