IR 05000280/1998201
| ML18152B818 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 05/11/1998 |
| From: | Stolz J NRC (Affiliation Not Assigned) |
| To: | Ohanlon J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| Shared Package | |
| ML18151A625 | List: |
| References | |
| 50-280-98-201, 50-281-98-201, NUDOCS 9805260010 | |
| Download: ML18152B818 (4) | |
Text
SUBJECT:
SURRY PLANT DESIGN INSPECTION (NRC INSPECTION REPORT NO. 50-280/98-201 ;50-281/98-201)
Dear Mr. O'Hanlon:
From February 16 through March 27, 1998, the staff of the U.S. Nuclear Regulatory _
Commission (NRC), Office of Nuclear Reactor Regulation (NRR), Events Assessments, Generic Communications and Special Inspection Branch, performed a design inspection of the Safety Injection (SI) and_ Recirculation Spray (RS) systems, and their support systems at the Surry Plant. The purpose of the inspection was to evaluate the capability of the selected systems to perform the safety functions required by their design bases, the adherence of the systems to their respective design and licensing bases, and the consistency of the as-built configuration and system operations with the updated final safety analysis report (UFSAR).
The team discussed significant findings of the inspection with your staff during the team exit meeting on March 27, 1998.
As discussed in the enclosed report, the team concluded that the SI and the RS systems were capable of performing their intended safety functions, although some discrepancies were identified regarding adherence of the systems to their design and licensing bases.
The team identified concerns with the SI system design which could result in one of the Unit 2 (Ii low head safety injection (LHSI) pumps operating near dead head conditions. The team also had concerns with the available NPSH for the low head safety injection and RS pumps due to potential sump screen blockage and use of containment overpressure in the NPSH analysis.,
Other concerns involved the design adequacy of the emergency diesel generator (EOG) battery transfer switch and the lack of engineering basis for the acceptability of cross-connecting the DC busses with both batteries tied to the DC busses.
The team found several examples of inadequate corrective actions, such as -failure to correct, 'l {!;) (
discrepancies identified by your Electrical Design Safety Functional Assessment (EDSFA) effort J; in 1992, and failure to take recommended actions from various engineering analyses.
Based on the number of discrepancies found in your UFSAR and your design basis documents (DBDs), your additional attention to improve the quality of these documents appeared warranted.
-i~.10030 _
9805260010 980511
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PDR ADOCK 05000280 ()
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- "" Please provide a schedule, within 60 days, detailing your plans to complete the corrective actions required to resolve the open items listed in Appendix A to the enclosed report. This schedule will enable the* NRC staff to plan for the reinspection and closeout of these items.
As with all NRC inspections, we expect that your staff will evaluate the applicability of the results and specific findings of this inspection to other systems and components throughout the plant. * In addition, please evaluate the inspection findings, both specific and programmatic, against your response to NRC's request (October 9, 1996) for information pursuant to 1 O CFR 50.54(f) regarding adequacy and availability of design bases information.
1n accordance with Title 10, Section 2. 790(a) of the Code of Federal Regulations, a copy of this letter and the enclosure will be placed in the NRC's Public Document Room. Any enforcement action resulting from this inspection will be handled by NRC Region II via separate correspondence.
Should you have any questions concerning the enclosed inspection report, please contact the project manager, Mr. Gordon E. Edison at (301) 415-1448, or the inspection team leader, Mr. James A. Isom, at (301) 415-1109.
Docket Nos.: 50-280 and 50-281
Sincerely,
~
. Stolz, Chief v nts Assessment, Ge ric Communications,
- . and Special Inspection Branch Division of Reactor Program Management Office of Nuclear Reactor Regulation Enclosure: Inspection Report 50-280/98-201;50-281/98-201 cc w/enclosure: See next page
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.J
Mr. J. Virginia Electric and Power Company cc:
Mr. Michael W. Maupin, Esq.
Hunton and Williams Riverfront Plaza, East Tower 951 E. Byrd Street Richmond, Virginia 23219 Mr. David Christian, Manager Surry Power Station Virginia Electric and Power Company 5570 Hog Island Road Surry, Virginia 23883 Senior Resident Inspector Surry Power Station U. S. Nuclear Regulatory Commission 5850 Hog Island Road Surry, Virginia 23883 Chairman Board of Supervisors of Surry County Surry County Courthouse Surry, Virginia 23683 Dr. W. T. Lough Virginia State Corporation Commission Division of Energy Regulation P. 0. Box 1197 Richmond, Virginia 23209 Regional Administrator, Region II U.S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303 Robert B. Strobe, M:D., M.P.H.
State Health Commissioner Office of the Commissioner Virginia Department of Health P.O. Box 2448 Richmond, Virginia 23218 Surry Power Station Office of the Attorney General Commonwealth of Virginia 900 East Main Street Richmond, Virginia 23219 Mr. J. H. McCarthy, Manager Nuclear Licensing & Operations Support Innsbrook Technical Center Virginia Electric and Power Company 5000 Dominion Blvd.
Glen Allen, Virginia 23060 Mr. R. C. Haag U.S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303 Mr. W. R. Matthews, Manager North Anna Power Station P. 0. Box 402 Mineral, Virginia 23117
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e INSPECTION REPORT DATED: ---'-"M.,_,,,a~y_,_1_.,_1,._1=9=9=8 _________ _
DISTRIBUTION:
Docket File 50"'.'280/281 PUBLIC PECB R/F B. Sheron, NRR J. Roe, NRR J. Stolz, NRR D. Norkin, NRR J. Isom C. Rossi, AEOD E. Adensam, NRR P.T. Kuo G. Edison E. Dunnington
- H. Miller, RI L. Reyes, RII A. Beach, RIii E. Merschoff, RIV C. Hehl, RI J. Wiggins, RI L. Plisco, RI I J. Jaudon, RII G. Grant, RIii C. Pederson, RII T. Gwynn, RIV A. Howell, RIV ACRS (3)
OGC (1)
11 S Distribution L. Marsh, NRR M. Cunningham, RES J. Rosenthal, AEOD