ML102570804
| ML102570804 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 09/13/2010 |
| From: | Price J Dominion, Virginia Electric & Power Co (VEPCO) |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 09-507A | |
| Download: ML102570804 (5) | |
Text
VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 September 13, 2010 10 CFR 50 Appendix H U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Serial No.
NL&OS/GDM Docket Nos.
License Nos.
09-507A R1 50-280/281 DPR-32/37 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)
SURRY POWER STATION UNITS 1 AND 2 REVISED REACTOR VESSEL MATERIALS SURVEILLANCE CAPSULE WIITHDRAWAL SCHEDULES - UFSAR CHANGE By letter dated October 26, 2009 (Serial No.09-507), Dominion requested NRC review and approval of the proposed reactor vessel material surveillance capsule withdrawal schedules for Surry Units 1 and 2 in accordance with 10 CFR 50, Appendix H, Section III.B.3.
The proposed schedules were developed to accommodate the 60-year license period for Surry Power Station Units 1 and 2 and to satisfy the requirements and guidance of ASTM E-185-82, "Standard Practice for Conducting Surveillance Tests for Light-Water Cooled Nuclear Power Reactor Vessels," dated July 1, 1982.
In subsequent discussions with the NRC Surry Project Manager and the technical review staff, the NRC requested that Dominion ensure that any surveillance capsules removed from the Surry Units 1 and 2 reactor pressure vessels, without the intent to test them, be maintained in a condition that would permit their future use, if necessary.
They also requested that this information be included in the Surry Units 1 and 2 Updated Final Safety Analysis Report (UFSAR).
It is Dominion's opinion that 10 CFR Part 50 Appendix H, as well as ASTM E-185-82, are silent on storage requirements for standby (untested) irradiated surveillance capsules not used to demonstrate compliance with ASTM E-185-82.
However, Dominion and the NRC agreed to include the following proposed wording, which is the same wording previously included in the North Anna Units 1 and 2 UFSAR, into the Surry UFSAR Section 4.1.7:
"Irradiated surveillance capsules which do not require testing to satisfy ASTM E-185 are designated as standby capsules. There currently is no detailed regulatory guidance regarding the treatment of standby capsules that are removed but not tested.
To address this concern, all surveillance capsules placed in storage will be maintained for possible future insertion.
If one or more capsules will not be maintained in such a way as to permit future insertion, then the NRC staff will be notified of this change."
Serial Number 09-507A Docket Nos. 50-280/281 Page 2 of 3 Also, one editorial change is being made to the UFSAR Table 4.1-13 for Surry Unit 2 that was provided in the October 26,2009 submittal. Table 4.1-13 footnote "d" is being revised for consistency with the footnote d in Unit 1 Table 4.1-12 (also included in the October 26, 2009 submittal) by adding the word "Standby" at the beginning of the footnote to appropriately identify the capsules as standby capsules.
The revised Table 4.1-13 is attached with the change indicated by a revision bar in the left-hand margin.
If you have any further questions regarding this submittal, please contact Mr. Gary D. Miller at (804) 273-2771.
Sincerely, Price esident - Nuclear Engineering Commitment made in this letter:
The Surry UFSAR will be revised to address retention of irradiated reactor vessel material surveillance capsules which do not require testing to satisfy ASTM E-185.
Attachment:
Revised UFSAR Table 4.1-13, Surveillance Capsule Withdrawal Schedule for Surry Unit2
cc:
U.S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, Georgia 30303-1257 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 Dr. V. Sreenivas NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 08 G-9A 11555 Rockville Pike Rockville, MD 20852-2738 Serial Number 09-507A Docket Nos. 50-280/281 Page 3 of 3
Serial Number 09-507A Docket Nos. 50-280/281 Attachment Revised UFSAR Table 4.1-13 Surveillance Capsule Withdrawal Schedule for Surry Unit 2 Virginia Electric and Power Company (Dominion)
Surry Power Station Units 1 and 2
Serial Number 09-507A Docket Nos. 50-280/281 Attachment TABLE 4.1-13 Surveillance Capsule Withdrawal Schedulea for Surry Unit 2 Capsule Capsule Withdrawal Insert Est. Capsule Ident.
Location EFPYIYear EFPYIYear Fluence (X1019) b XC 285 0
1.2/1975 NA 0.297 W C 245 0
3.8/1979 NA 0.636 VC 165 0
8.5/1986 NA 1.89 Y
295 0
13.7/1994 NA 1.97 Y
165 0
NA 13.7/1994 NA y C 165 0
19.7/2002 NA 3.14 U
65 0
27.9/2009 NA 3.49 U
285 0 NA 27.9/2009 NA U C 285 0
45.0/2027 NA 5.95 T
55 0
19.7/2002 NA 1.82 T
165 0
NA 19.7/2002 NA T d 165 0
NA NA 5.88 (48.0 EFPY)
Z 305 0
13.7/1994 NA 1.34 Z
245 0
NA 13.7/1994 NA Z
245 0
45.0/2027 NA 4.48 Z
285 0
NA 45.0/2027 NA Zd 285 0
NA NA 5.09 (48.0 EFPY)
S 45 0
15.0/1996 NA 1.07 W1 285 0
NA 10.9/1991 NA W1 e 285 0
16.4/1997 NA 0.690
- a. Withdrawal schedule meets requirements of ASTM E 185-82, Standard Practice for Conducting Surveillance Tests for Light-Water Cooled Nuclear Power Reactor Vessels, dated July 1, 1982.
- b. 48.0 EFPY corresponds to the estimated cumulative core burnup at the end of the 50-year license period. Fluence values for withdrawn capsules are obtained from capsule test reports.
c.
These capsules are required to satisfy the requirements of ASTM E 185-82 during the license period.
- d. Standby capsules T and Z are available to satisfy potential fluence monitoring requirements during the 20-year license renewal period.
- e. Master Integrated Reactor Vessel Materials Surveillance Program capsule.