ML082970788
| ML082970788 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 10/28/2008 |
| From: | Thadani M Plant Licensing Branch IV |
| To: | Heflin A Union Electric Co |
| Thadani, M C, NRR/DORL/LP4, 415-1476 | |
| References | |
| GL-07-001, TAC MD4307 | |
| Download: ML082970788 (4) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 28, 2008 Mr. Adam C. Heflin Senior Vice President and Chief Nuclear Officer Union Electric Company P.O. Box 620 Fulton, MO 65251 SUB~IECT:
CALLAWAY PLANT, UNIT 1 - CLOSEOUT OF GENERIC LETTER 2007-01, "INACCESSIBLE OR UNDERGROUND POWER CABLE FAILURES THAT DISABLE ACCIDENT MITIGATION SYSTEMS OR CAUSE PLANT TRANSIENTS" (TAC NO. MD4307)
Dear Mr. Heflin:
On February 7,2007, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 2007-01, "Inaccessible or Underground Power Cable Failures That Disable Accident Mitigation Systems or Cause Plant Transients" (Agencywide Documents Access and Management System (ADAMS) Accession No. ML070360665). GL 2007-01 requested that licensees provide the following information within 90 days of the date of the GL:
(1)
A history of inaccessible or underground power cable failures for all cables that are within the scope of Section 50.65 of Title 10 of the Code of Federal Regulations (10 CFR 50.65, the Maintenance Rule) and for all voltage levels including the cable type, cable manufacturer, date of failure, type of service, voltage class, years of service, and the root causes for the failure; and (2)
A description of all inspection, testing, and monitoring programs to detect the degradation of inaccessible or underground power cables that support emergency diesel generators (EDGs), offsite power, emergency service water (ESW), service water, component cooling water, and other systems that are within the scope of 10 CFR 50.65 (the Maintenance Rule).
In your letter dated May 7,2007 (ADAMS Accession No. ML071350411), you provided the information requested in GL 2007-01 including:
(1)
A history of inaccessible or underground power cable failures for all cables that are within the scope of 10 CFR 50.65 (the Maintenance Rule) and for all voltage levels including the cable type, cable manufacturer, date of failure, type of service, voltage class, years of service, and the root causes for the failure; and (2)
A description of all inspection, testing, and monitoring programs to detect the degradation of inaccessible or underground power cables that support EDGs, offsite power, ESW, service water, component cooling water, and other systems that are within the scope of 10 CFR 50.65 (the Maintenance Rule).
A. Heflin
- 2 The !\\IRC staff has reviewed the submitted information and has concluded that for Callaway Plant, Unit 1, your response to GL 2007-01 is adequate. Based on this review, your response to GL 2007-01 is considered closed and no further action is requested of you at this time.
If you have any questions regarding this letter, please feel free to contact me at (301) 415-1476 or mohan.thadani@nrc.gov.
Sincerely,
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Mohan C. Thadani, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-483 cc: See next page
Callaway Plant, Unit 1 (9/19/2008) cc:
Missouri Public Service Commission Governor Office Building 200 Madison Street P.O. Box 360 Jefferson City, MO 65102-0360 Certrec Corporation 4200 S. Hulen, Suite 422 FortWorth,TX 76109 Technical Services Branch Chief FEMA Region VII 2323 Grand Blvd., Suite 900 Kansas City, MO 64108-2670 Additional Distribution via Listserv
October 28, 2008 A. Heflin
- 2 The NRC staff has reviewed the submitted information and has concluded that for Callaway Plant, Unit 1, your response to GL 2007-01 is adequate. Based on this review, your response to GL 2007-01 is considered closed and no further action is requested of you at this time.
If you have any questions regarding this letter, please feel free to contact me at (301) 415-1476 or mohan.thadani@nrc.gov.
Sincerely, IRAI Mohan C. Thadani, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-483 cc: See next page DISTRIBUTION:
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