ML20248H955
| ML20248H955 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 06/01/1998 |
| From: | Padovan L NRC (Affiliation Not Assigned) |
| To: | Gabe Taylor SOUTH CAROLINA ELECTRIC & GAS CO. |
| References | |
| GL-97-04, GL-97-4, TAC-M95646, NUDOCS 9806080326 | |
| Download: ML20248H955 (3) | |
Text
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. UNITED STATES p
s NUCLEAR REGULATORY COMMIS810N WAsMINGTON, D.C. 30006 0301 June 1, 1998 Mr. Gary J. Taylor Vice President, Nuclear Operations South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station Post Office Box 88 Jenkinsville, South Carolina 29065
SUBJECT:
COMPLETION OF LICENSING ACTION FOR GENERIC LETTER 97 VIRGIL C. SUMMER NUCLEAR STATION (TAC NO. M95646)
Dear Mr. Taylor:
The U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 97-04, " Assurance of Sufficient Not Positive Suction Head for Emergency Core Cooling and Containment Heat Removal Pumps," to all holders of operating licenses or construction permits on October 7,1997. The NRC issued GL 97-04 to confirm the adequacy of the net positive suction head (NPSH) available for emergency core cooling (including core spray and decay heat removal) and containment heat removal pumps under all design-basis accident scenarios, in GL 97-04, the NRC staff specifically requested that licensees provide the information outlined below for each of their facilities.
- 1. Specify the general methodology used to calculate the head loss associated with the ECCS suction strainers.
- 3. Specify whether the current design-basis NPSH analysis differs from the most recent analysis reviewed and approved by the NRC for which a safety evaluation was issued.
- 4. Specify whether containment overpressure (i.e., containment pressure above the vapor pressure of the sump or suppression pool fluid) was credited in the calculation of available NPSH. Specify the amount of overpressure needed and the minimum overpressure available.
- 5. When containment overpressure is credited in the calculation of available NPSH, confirm that an appropriate containment pressure analysis was done to establish the minimum containment pressure.
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in response to GL 97-04, you provided letters dated ' ovember 6,1997, and January 5,1998, N
for the Summer plant. These submittals provided the information GL 97-04 requested. The
. staff has reviewed your response and has concluded that all requested information has been
. provided; therefore, we consider GL 97-04 to be closed for your facility. Thank you for your prompt and complete response. Please contact me if you have any questions regarding this
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matter.
Sincerely, (Original Signed By)
L. Mark Padovan, Project Manager
' Project Directorate ll-1 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation I
Docket No. 50-395 cc: See next page DISTRIBUTION emulesPPlir"-
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...e Mr. Gary J. Taylor VIRGIL C. SUMMER NUCLEAR STATION South Carolina Electric & Gas Company cc:
Mr. R. J. White J.
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Knotts, Jr., Esquire Nuclear Coordinator Winston & Strawn Law Firm S.C. Public Service Authority 1400 L Street, N.W.
c/o Virgil C. Summer Nuclear Station Washington, D.C.
20005-3502-Post Office Box 88. Mail Code 802 Jenkinsv111e South Carolina 29065 Resident Inspector / Summer NPS c/o U.S. Nuclear Regulatory Commission Route 1 Box 64 Jenkinsv111e, South Carolina 29065 Regional Administrator, Region II U.S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303 Chairman, Fairfield County Council Drawer 60 Winnsboro, South Carolina 29180 Mr. Virgil R. Autry Director of Radioactive Waste Management Bureau of Solid.& Hazardous Waste Management Department of Health & Environmental Control 2600 Bull Street Columbia, South Carolina 29201 Mr. Robert M. Fowlkes, Manager Operations South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station, Mail Code 303 Post Office Box 88 Jenkinsville. South Carolina 29065 Ms. April R. Rice.-Manager Nuclear Licensing & Operating Experience South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station, Mail Code 830 Post Office Box 88 Jenkinsville. South Carolina 29065-