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See also: [[see also::IR 05000280/1998201]]


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{{#Wiki_filter:\I */ VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 October 14, 1999 United States Nuclear Regulatory  
{{#Wiki_filter:\I */ VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 October 14, 1999 United States Nuclear Regulatory Commission Attention:
Commission  
Document Control Desk Washington, D. C. 20555 Gentlemen:
Attention:  
VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS 1 AND 2 RESPONSE TO SURRY PLANT DESIGN INSPECTION Serial No. NL&OS/SLW
Document Control Desk Washington, D. C. 20555 Gentlemen:  
* Docket Nos. License Nos. NRC INSPECTION REPORT NOS. 50-280/98-201 AND 50-281/98-201 INSPECTION ITEM 98-201-20, UNQUALIFIED COATINGS 98-300C R1' 50-280 50-281 DPR-32 DPR-37 In letter Serial No. 98-300 dated July 9, 1998, Virginia Power provided a preliminary scope of work to address design inspection item 9.8-201-20.
VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS 1 AND 2 RESPONSE TO SURRY PLANT DESIGN INSPECTION  
As part of that scope, Virginia Power performed an initial assessment of coatings inside containment at the Surry Power Station. The evaluation clarified the licensing basis for coatings, established coating debris zones of influence, identified quantities and locations of unqualified or indeterminate coatings for the significant majority of items within the zones of influence, and evaluated the impact of coating debris on NPSH margin and sump performance.
Serial No. NL&OS/SLW  
Additionally, visual inspections were completed on accessible coatings inside containment for both Units 1 and 2. The assessments of zones of influence and impact of coating debris on NPSH margin and sump performance are considered preliminary.
* Docket Nos. License Nos. NRC INSPECTION  
The need for further analysis will be assessed following the additional guidance that is expected as a result of the ongoing research being done by the NRG Office of Research on inside containment coating. As an interim and conservative measure, Virginia Power elected to encapsulate,
REPORT NOS. 50-280/98-201  
* repair, or remove degraded coatings identified during the visual inspections that are within the area of concern surrounding the containment sump. In addition, Virginia Power completed a self-assessment of its nuclear coatings program. Enhancements identified in the self-assessment are being implemented to strengthen the control and maintenance of qualified coatings.
AND 50-281/98-201  
Upon issuance of further guidance from the NRG, Virginia Power will perform any additional evaluations that are required.
INSPECTION  
Very truly yours, David A. Christian Vice President  
ITEM 98-201-20, UNQUALIFIED  
-Nuclear Operations 9910290193 991014 PDR ADOCK 05000280 G PDR -I   
COATINGS 98-300C R1' 50-280 50-281 DPR-32 DPR-37 In letter Serial No. 98-300 dated July 9, 1998, Virginia Power provided a preliminary  
'\ . * *
scope of work to address design inspection  
* cc: US Nuclear Regulatory Commission Region II Atlanta Federal Center 61 Forsyth Street, S.W., Suite 23T85 Atlanta, Georgia 30303 Mr. R. A. Musser NRC Senior Resident Inspector Surry Power Station}}
item 9.8-201-20.  
As part of that scope, Virginia Power performed  
an initial assessment  
of coatings inside containment  
at the Surry Power Station. The evaluation  
clarified  
the licensing  
basis for coatings, established  
coating debris zones of influence, identified  
quantities  
and locations  
of unqualified  
or indeterminate  
coatings for the significant  
majority of items within the zones of influence, and evaluated  
the impact of coating debris on NPSH margin and sump performance.  
Additionally, visual inspections  
were completed  
on accessible  
coatings inside containment  
for both Units 1 and 2. The assessments  
of zones of influence  
and impact of coating debris on NPSH margin and sump performance  
are considered  
preliminary.  
The need for further analysis will be assessed following  
the additional  
guidance that is expected as a result of the ongoing research being done by the NRG Office of Research on inside containment  
coating. As an interim and conservative  
measure, Virginia Power elected to encapsulate, * repair, or remove degraded coatings identified  
during the visual inspections  
that are within the area of concern surrounding  
the containment  
sump. In addition, Virginia Power completed  
a self-assessment  
of its nuclear coatings program. Enhancements  
identified  
in the self-assessment  
are being implemented  
to strengthen  
the control and maintenance  
of qualified  
coatings.  
Upon issuance of further guidance from the NRG, Virginia Power will perform any additional  
evaluations  
that are required.  
Very truly yours, David A. Christian  
Vice President  
-Nuclear Operations  
9910290193  
991014 PDR ADOCK 05000280 G PDR -I   
'\ . * * * cc: US Nuclear Regulatory  
Commission  
Region II Atlanta Federal Center 61 Forsyth Street, S.W., Suite 23T85 Atlanta, Georgia 30303 Mr. R. A. Musser NRC Senior Resident Inspector  
Surry Power Station
}}

Revision as of 15:02, 31 July 2019

Submits Response to Violations Noted in Insp Repts 50-280/98-201 & 50-281/98-201.Corrective Actions:Visual Insps Were Completed on Accessible Coatings Inside Containment for Both Units 1 & 2
ML18152B358
Person / Time
Site: Surry  
Issue date: 10/14/1999
From: Christian D
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
50-280-98-201, 50-281-98-201, 98-300C, NUDOCS 9910290193
Download: ML18152B358 (2)
v • d • e


Text

\I */ VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 October 14, 1999 United States Nuclear Regulatory Commission Attention:

Document Control Desk Washington, D. C. 20555 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS 1 AND 2 RESPONSE TO SURRY PLANT DESIGN INSPECTION Serial No. NL&OS/SLW

  • Docket Nos. License Nos. NRC INSPECTION REPORT NOS. 50-280/98-201 AND 50-281/98-201 INSPECTION ITEM 98-201-20, UNQUALIFIED COATINGS 98-300C R1' 50-280 50-281 DPR-32 DPR-37 In letter Serial No.98-300 dated July 9, 1998, Virginia Power provided a preliminary scope of work to address design inspection item 9.8-201-20.

As part of that scope, Virginia Power performed an initial assessment of coatings inside containment at the Surry Power Station. The evaluation clarified the licensing basis for coatings, established coating debris zones of influence, identified quantities and locations of unqualified or indeterminate coatings for the significant majority of items within the zones of influence, and evaluated the impact of coating debris on NPSH margin and sump performance.

Additionally, visual inspections were completed on accessible coatings inside containment for both Units 1 and 2. The assessments of zones of influence and impact of coating debris on NPSH margin and sump performance are considered preliminary.

The need for further analysis will be assessed following the additional guidance that is expected as a result of the ongoing research being done by the NRG Office of Research on inside containment coating. As an interim and conservative measure, Virginia Power elected to encapsulate,

  • repair, or remove degraded coatings identified during the visual inspections that are within the area of concern surrounding the containment sump. In addition, Virginia Power completed a self-assessment of its nuclear coatings program. Enhancements identified in the self-assessment are being implemented to strengthen the control and maintenance of qualified coatings.

Upon issuance of further guidance from the NRG, Virginia Power will perform any additional evaluations that are required.

Very truly yours, David A. Christian Vice President

-Nuclear Operations 9910290193 991014 PDR ADOCK 05000280 G PDR -I

'\ . * *

  • cc: US Nuclear Regulatory Commission Region II Atlanta Federal Center 61 Forsyth Street, S.W., Suite 23T85 Atlanta, Georgia 30303 Mr. R. A. Musser NRC Senior Resident Inspector Surry Power Station
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