ML20211G264
| ML20211G264 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 09/23/1997 |
| From: | Le N NRC (Affiliation Not Assigned) |
| To: | Sumner H SOUTHERN NUCLEAR OPERATING CO. |
| References | |
| GL-96-06, GL-96-6, TAC-M97478, TAC-M97479, NUDOCS 9710020177 | |
| Download: ML20211G264 (4) | |
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@'i September 23, 1997 Mr. H. L. Sumner, Jr.
Vice President Hatch Project Southern Nuclear Operating Company, Inc.
P. O. Box 1295 Birmingham, Alabama 35201 1295
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING RESPONSE TO GENERIC LETTER 96 EDWIN 1. HATCH NUCLEAR PLANT, UNITS 1 AND 2 (TAC NOS. M97478 AND M97479)
Dear Mr. Sumner:
By letter dated January 27,1997, Georgia Power Company and Southern Nuclear Operating Company, Inc. (SNC) submitted its 120-day response to Generic Letter (GL) 96-06, " Assurance of Equipment Operability and Containment Integrity During Design Basis Accident Conditions." The submittal addresses the issues of water hammer, two-phase flow and thermally induced pressurization of piping runs penetrating the containment for the Edwin I. Hatch Nuclear Plant, Units 1 and 2.
In its submittal, SNC identified three pipe lines penetrating the containment that are susceptible to thermally induced pressurization and were evaluated for operability for each unit. These lines are associated with penetrations for the residual heat removal shutdown cooling suction line, the drywall floor drain sump discharge line, and the drywall equipment drain sump discharge line. SNC further committed to complete the appropriate corrective actions for these pipe lines prior to the restart from the spring 1997 refueling outage for Unit 2 and during the fall 1997 outage for Unit 1.
In order for the NRC staff to complete its review of SNC's response to GL 96 06, additionalinformation is needed regarding your evaluation of these pipe lines. Therefore, we request that you provide summaries of your evaluations of the above mentioned three pipe lines penetrating the containment for each unit. The summaries should describe the method of analysis, including the assumptions used in the analysis, and the results. You should provide fabrication drawings of the piping sections evaluated and discuss how the criteria used for the evaluations meet the licensing basis criteria for the Hatch f acility. You should also provide the schedule for the completion of any modifications that may be required.
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Mr. H. L. Sumner, Jr.
2-We request that you provide the above information within 30 days from receipt of this letter. If you have any questions on this matter, please contact me at (301) 4151458.
Sincerely, A
Ngoc B. Le, Project Manager Project Directorate 112 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation Docket Nos. 50 321 and 50 bt,6 cc: -See next page I
Edwin 1. Hatch Nuclear Plant cc:
Mr. Ernest L. Blaka, Jr.
Charles A. Patrizia, Esquire Shaw, Pittman, Potts Paul, Hastings, Janofsky & Walker and Trowbridge 10th Floor 2300 N Street, NW.
12P9 Panr.sylvania Avenue Washington, DC 20037 Washington, DC 20004 9500 Mr. D. M. Crowe Chairman Manager, Licensing Appling County Commissioners Southern Nuclear Operating County Courthouse Company, Inc.
Baxley, Georgia 31513 P. O. Box 1295 Birmingham, Alebama 35201 1295 Mr. W. L. Harriston, lil President and Chief Executive Resident In::pector Officer Plant Hatch Southern Nuclear Operating Southern Nuclear Operating Company, Inc.
Company, Inc.
P. O. Box 1295 P. O. Box 439 Birmingham, Alabama 35201-1295 Baxley, Georgia 31513 Mr. J. D. Woodard Regional Administrator, Region II Executive Vice President U.S. Nuclear Regulatory Commission Southern Nuclear Operating Atlanta Federal Center Company, Inc.
61 Forsyth Street, SW, Suite 23T85 P. O. Box 1295 Atlanta, Georgia 30303 Birmingham, Alabama 35201-1295 Mr.- Charles H. Badger Mr. P. W. Wells Office of Planning and Budget General Manager, Edwin 1. Hatch Room 610 Nuclear Plant 270 Washington Street, SW.
Southern Nuclear Operating Atlanta, Georgia 30334 Company, Inc.
P. O. Box 439 Harold Reheis, Director Baxley, Georgia 31513 Department of Natural Resources 205 Butler Street, SE., Suite 1252 Mr. R. D. Barker Atlanta, Georgia 30334 Program Manager Fossil & Nuclear Operations Steven M. Jackson Oghthorpe Power Corporation Senior Engineer - Power Supply 2100 East Exchange Place Municipal Electric Authority P. O. Box 1340 of Georgia Tucker, Georgia 30085-1349 1470 Riveredge Parkway, NW Atlanta, Georgia 30328 4684
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Mr. H. L. Sumner, Jr. September 23, 1997 We request that you provHe the above information within 30 days from receipt of this letter. If you have any quettions on this matter, please contact me at (301) 415-1458.
Sincerely, ORIGINAL SIGNED BY:
Ngoc B. Le, Project Manager Project Directorate ll 2
_ Division of Reactor Projects - 1/II Office of Nuclear Reactor Regulation Docket Nos. 50 321 and 50-366 cc: See next page Distribution:
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