ML17054B215
| ML17054B215 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 11/16/1984 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | Hooten B NIAGARA MOHAWK POWER CORP. |
| References | |
| NUDOCS 8411280571 | |
| Download: ML17054B215 (8) | |
Text
Docket No.
50-410 SOY ge l984 Mr. B. G. Hooten, Executive Director Nuclear Operations Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, New York 13202
Dear Mr. Hooten:
SUBJECT:
RE(VEST FOR INFORMATION CONCERNING LEAD FACTORS FOR SURVEILLANCE SPECIMEN CAPSULES Our Draft SER sent to Mr. Gerald Rhode on March 8, 1984 noted that lead factors for Nine Mile Point 2 needed to be identified.
Although the lead factors have never been formally submitted, discussions with your staff on October 10, 1984 indicated a lead factor of.29 at Nine Mile Point 2.
Accordingly, enclosed is a request for information concerning the lead factors at Nine Mile Point 2.
F If you have any questions concerning the enclosed request for information, please contact the licensing project manager, M. Haughey (301-492-7897).
Sincerely,
Enclosure:
As stated cc:
E. Weinkam B. Elliot, MTEB W. Hazelton, MTEB B.
D. Liaw, MTEB A. Schwencer, Chief Licensing Branch No.
2 Division of Licensing Distribution:
F~F NRC PDR Local PDR PRC System NSIC LBP2 Reading EHylton MHaughey EJordan NGrace Bordenick, OELD ACRS (16)
LB82/DL/PI
/
LB82/DL/BC MHaughey/lb ASchwencer 11//f /84 11/iS/84 Se11aSom'1 Sei11e Il PDR ADOCK 05000g10 E
tl I,'=
I I'
II II K
K
'I I
V f"
Nine Mile Point 2
Mr. B.
G. Hooten Executive Director, Nucl'ear Operations Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, New York 13202 CC:
Mr. Troy B. Conner, Jr.,
Esq.
Conner 8 Wetterhahn Suite 1050 1747 Pennsylvania
- Avenue, N.W.
Washington, D.C.
20006 Richard Goldsmith Syracuse University College of Law E. I. White Hall Campus
- Syracuse, New York 12223 Ezra I. Bialik Assistant Attorney General Environmental Protection Bureau New York State Department of Law 2 World Trade Center New York, New York 10047
.Resident Inspector Nine Mile Point Nuclear Power Station P. 0.
Box 99
- Lycoming, New York 13093
~Mr. John W. Keib, Esq.
Niagara Mohawk Power Corporation 300 Erie Boulevard West
. Syracuse, New York 13202 Jay M. Gutierrez, Esq.
U. S. Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia,.
Pennsylvania 19406 Norman Rademacher, Licensing Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, New York 13202
P
Enclosure RE(UEST FOR INFORMATION LEAD FACTORS I)
Paragraph II.B.2 of Appendix H, 10 CFR 50 requires, in part, that sur-veillance specimen capsules must be located near the inside vessel wall in the beltline region so that the specimen irradiation history duplicates, to the extent practicable within the physical constraints of the system, the neutron spectrum, temperature
- history, and maximum neutron fluence experienced by the reactor vessel inner surface.
To demonstrate compli-ance with these requirements:
a.
Indicate the lead factors for the surveillance capsule relative to the maximum neutron fluence experienced by the reactor vessel inner surface.
b.
Estimate temperature difference between the surveillance capsule and reactor vessel inner wall.
c.
Is there a significant neutron spectrum difference between the materials in the surveillance capsule and the reactor vessel= inner wall?
- 2) If there is a significant lag in neutron fluence, difference in temperature or difference in neutron spectrum between the materials in the surveillance capsule and the reactor vessel inner wall:
a.
To the extent practicable and within the physical constraints of the system, where may the capsules be relocated to better duplicate the irradiation history of the reactor vessel inner wall.
- b. If it is impractical to move the capsule, explain why.
c.
How will irradiation damage to the NMP-2 reactor vessel materials be estimated throughout the design life of the vessel and how will the NMP-2 surveillance program monitor these estimates?
d.
Are there other licensees/applicants whose vessels can comply with the integrated surveillance requirements of Paragraph II.C of Appendix G, 10 CFR 50, and will participate with NMP-2 in an integrated sur-
~
veillance program?
llhich plants?
0