ML12319A006
| ML12319A006 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 11/06/2012 |
| From: | Price J Virginia Electric & Power Co (VEPCO), Dominion |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 12-672 | |
| Download: ML12319A006 (7) | |
Text
10 CFR 50.90 VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINA 23261 November 6, 2012 Attention: Document Control Desk Serial No.12-672 U. S. Nuclear Regulatory Commission NL&OS/ETS RO 11555 Rockville Pike Docket Nos.
50-280/281 Rockville, MD 20852 License Nos.
DPR-32/37 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)
SURRY POWER STATION UNITS 1 AND 2 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION FOR PROPOSED TECHNICAL SPECIFICATIONS TO ADOPT TSTF-510, "REVISION TO STEAM GENERATOR PROGRAM INSPECTION FREQUENCIES AND TUBE SAMPLE SELECTION." USING THE CONSOLIDATED LINE ITEM IMPROVEMENT PROCESS In a letter dated October 16, 2012 (Serial No.12-487), Dominion requested an amendment in the form of changes to the Technical Specifications (TS) to Facility Operating Licenses DPR-32 and 37 for Surry Power Station (SPS) Units 1 and 2, respectively. The proposed amendment would modify the TS requirements regarding steam generator tube inspections and reporting as described in TSTF-510, Revision 2, "Revision to Steam Generator Program Inspection Frequencies and Tube Sample Selection."
In a letter dated October 16, 2012, the NRC requested additional information to complete the review.
The attachments to this letter contain the information requested; specifically the phrase "tube repair criteria" has been replaced with "tube plugging criteria" in the proposed TS change to Steam Generator Program (TS 6.4.Q).
Attachments 1 and 2 provide the corrected marked up TS page (Insert A) and the corrected proposed TS page, respectively. Please use the corrected pages to complete the review of the Steam Generator Program proposed license amendment request.
The proposed revisions do not affect the Significant Hazards Consideration provided in the October 16, 2012 submittal.
Approval of the proposed amendment continues to be requested by July 2013. Once approved, the amendment shall be implemented within 60 days.
Serial No.12-672 Docket Nos. 50-280/281 SG Program Revision Page 2 of 3 If you have any questions or require additional information, please contact Mr. Gary D. Miller at (804) 273-2771.
Very truly yours, J. Alan Price VICKI L. HULL Vice President - Nuclear Engineering Notary Public i
Commonwealth of Virginia i
140542 COMMONWEALTH OF VIRGINIA
)
MyConunlssion Expires May 31. 2014 COUNTY OF HENRICO The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by J. Alan Price, who is Vice President - Nuclear Engineering of Virginia Electric and Power Company. He has affirmed before me that he is duly authorized to execute and file the foregoing document in behalf of that Company, and that the statements in the document are true to the best of his knowledge and belief.
Acknowledged before me this day
,2012.
My Commission Expires(
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Notary Public Commitments made in this letter: None
Enclosures:
- 1. Corrected Marked-up Technical Specifications Page
- 2. Corrected Proposed Technical Specifications Page
Serial No.12-672 Docket Nos. 50-280/281 SG Program Revision Page 3 of 3 cc:
U. S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Avenue, NE Suite 1200 Atlanta, Georgia 30303-1257 State Health Commissioner Virginia Department of Health James Madison Building - 7 th floor 109 Governor Street Suite 730 Richmond, Virginia 23219 NRC Senior Resident Inspector Surry Power Station Ms. K. R. Cotton NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North - Mail Stop 08 G-9A 11555 Rockville Pike Rockville, Maryland 20852-2738 Dr. V. Sreenivas NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North - Mail Stop 08 G-9A 11555 Rockville Pike Rockville, Maryland 20852-2738
Serial No.12-672 Docket Nos. 50-280/281 SG Program Revision Corrected Marked-up Technical Specifications Page Virginia Electric and Power Company (Dominion)
Surry Power Station Units 1 and 2
Insert A - Surry TS 6.4.Q SG Program (600TT)
- b.
After the first refueling outage following SG installation, inspect each SG at least every 48 effective full power months or at least every other refueling outage (whichever results in more frequent inspections). In addition, the minimum number of tubes inspected at each scheduled inspection shall be the number of tubes in all SGs divided by the number of SG inspection outages scheduled in each inspection period as defined in b.1, b.2, and b.3 below. If a degradation assessment indicates the potential for a type of degradation to occur at a location not previously inspected with a technique capable of detecting this type of degradation at this location and that may satisfy the applicable tube plugging criteria, the minimum number of locations inspected with such a capable inspection technique during the remainder of the inspection period may be prorated. The fraction of locations to be inspected for this potential type of degradation at this location at the end of the inspection period shall be no less than the ratio of the number of times the SG is scheduled to be inspected in the inspection period after the determination that a new form of degradation could potentially be occurring at this location divided by the total number of times the SG is scheduled to be inspected in the inspection period. Each inspection period defined below may be extended up to 3 effective full power months to include a SG inspection outage in an inspection period and the subsequent inspection period begins at the conclusion of the included SG inspection outage.
- 1)
After the first refueling outage following SG installation, inspect 100% of the tubes during the next 120 effective full power months. This constitutes the first inspection period;
- 2)
During the next 96 effective full power months, inspect 100% of the tubes. This constitutes the second inspection period; and
- 3)
During the remaining life of the SGs, inspect 100% of the tubes every 72 effective full power months. This constitutes the third and subsequent inspection periods.
Serial No.12-672 Docket Nos. 50-280/281 SG Program Revision Corrected Proposed Technical Specification Page Virginia Electric and Power Company (Dominion)
Surry Power Station Units 1 and 2
TS 6.4-13
- b.
After the first refueling outage following SG installation, inspect each SG at least every 48 effective full power months or at least every other refueling outage (whichever results in more frequent inspections). In addition, the minimum number of tubes inspected at each scheduled inspection shall be the number of tubes in all SGs divided by the number of SG inspection outages scheduled in each inspection period as defined in b. 1, b.2, and b.3 below. If a degradation assessment indicates the potential for a type of degradation to occur at a location not previously inspected with a technique capable of detecting this type of degradation at this location and that may satisfy the applicable tube plugging criteria, the minimum number of locations inspected with such a capable inspection technique during the remainder of the inspection period may be prorated. The fraction of locations to be inspected for this potential type of degradation at this location at the end of the inspection period shall be no less than the ratio of the number of times the SG is scheduled to be inspected in the inspection period after the determination that a new form of degradation could potentially be occurring at this location divided by the total number of times the SG is scheduled to be inspected in the inspection period. Each inspection period defined below may be extended up to 3 effective full power months to include a SG inspection outage in an inspection period and the subsequent inspection outage in an inspection period and the subsequent period begins at the conclusion of the included SG inspection outage.
I. After the first refueling outage following SG installation, inspect 100% of the tubes during the next 120 effective full power months. This constitutes the first inspection period;
- 2. During the next 96 effective full power months, inspect 100% of the tubes.
This constitutes the second inspection period; and
- 3.
During the remaining life of the SGs, inspect 100% of the tubes every 72 effective full power months. This constitutes the third and subsequent inspection periods.
Amendment Nos.