ML20202D017
| ML20202D017 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 06/20/1986 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Hukill H GENERAL PUBLIC UTILITIES CORP. |
| References | |
| NUDOCS 8607110502 | |
| Download: ML20202D017 (4) | |
Text
i D m r5 - c>/ 6 June 20,1986 Docket No. 50-289 Mr. Henry D. Hukill, Vice President-and Director -7TMI-1 GPU Nuclear Corporation P. O. Box 480 Middletown,-Pennsylvania -17057
Dear Mr.-Hukill:
SUBJECT:
FLUENCE PROJECTIONS PER 10 CFR 50.61 By letter dated January 23, 1986, you submitted information concerning tSe fast neutron fluence for the TMI-1 reactor vessel which included data for weld SA-1526. This information was required by 10 CFR 50.61.
Our review has identified a need for further clarifying information. Enclosed are three questions which tddress our concerns. The schedule for responding to this request for add tfotal information can be negotiated between your staff and the assigned NRC Project Manager, Mr. John Thoma (301-492-8018).
However, if it is reasonable to do so, we would like a response in 30 to 60 days from receipt of this letter.
Sincerely, "lCIGI!MIUM:D14 JCCF. sntg;;,
John F. Stolz, Director PWR Project Directorate #6 Division of PWR Licensing-B
Enclosure:
Request for Additional Information i
l cc w/ enclosure:
See next page DJSIMBUTION ACRS-10 (DocketFilp BGrimes NRCPDP JPartlow L PDR JThoma PBD-6 Rdg RIngram FMiraglia Gray File OELD EBrach EJordan H0rnstein l
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t Mr. Henry D. Hukill Three Mile Island Nuclear Station, GPU Nuclear Corporation Unit No. 1 cc:
Mr. R. J. Toole Mr. Richard Conte 0&M Director, TMI-1 Senior Resident Inspector-(TMI-1)
GPU Nuclear Corporation U.S.N.R.C.
Middletown, Pennsylvania 17057 P.O. Box 311 4
Middletown, Pennsylvania 17057 Richard J. McGoey Manager, PWR Licensing Regional Administrator, Region I GPU Nuclear Corporation U.S. Nuclear Regulatory Comission 100 Interpace Parkway 631 Park Avenue Parsippany, New Jersey 70754 King of Prussia, Pennsylvania 19406 l
Mr. C. W. Snyth Mr. Robert B. Borsum TMI-1 Licensing Manager Babcock & Wilcox GPU Nuclear Corporation Nuclear Power Generation Division P. O. Box 480 Suite 220, 7910 Woodmont Avenue l
Middletown, Pennsylvania 17057 Bethesda, Maryland 20814 Ernest L. Blake, Jr., Esq.
Governor's Office of State Planning j
Shaw, Pittman, Potts & Trowbridge and Development 1800 M Street, N.W.
ATTN: Coordinator, Pennsylvania Washington, D.C.
20036 State Clearinghouse P. O. Box 1323 l
Sheldon J. Wolfe, Esq., Chairman Harrisburg, Pennsylvania 17120 Atomic Safety and Licensing Board U.S. Nuclear Regulatory Commission Mr. Larry Hochendoner Washington, D.C.
20555 Dauphin County Commissioner Dauphin County Courthouse i
Mr. Frederick J. Shon Front and Market Streets Atomic Safety and Licensing Board Harrisburg, Pennsylvania 17101 U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Mr. David D. Maxwell, Chairman Board of Supervisors Dr. Oscar H. Paris Londonderry Township Atomic Safety and Licensing Board RFD#1 - Geyers Church Road U.S. Nuclear Regulatory Commission Middletown,' Pennsylvania 17057 Washington, D.C.
20555 Mr.: Thomas M. Gerusky, Director Atomic Safety & Licensing Board Panel Bureau of Radiation Protection U.S. Nuclear Regulatory Commission Pennsylvania Department of Washington, DC 20555 Environmental Resources P. O. Box 2063 Atomic Safety & Lic'ensing Appeal Harrisburg, Pennsylvania 17120 Board Panel (8)
U.S. Nuclear Regulatory Commission Thomas Y. Au, Esq.
Washington, D.C.
20555 Office of Chief Counsel Department of Environmental Resources Docketing and Service Section 505 Executive House Office of the Secretary P. O. Box 2357 U.S. Nuclear Regulatory Comission Harrisburg, Pennsylvania 17120 Washington, D.C.
20555 Ms. Louise Bradford TMIA 1011 Green Street Harrisburg, Pennsylvania 17102
2-Three Mile Island Nuclear Station Mr. Henry D. Hukill GPU Nuclear Corporation Unit 1 TMIA 315 Peffer Street Harrisburg, Pennsylvania 17102 Bruce W. Churchill, Esq.
Shaw, Pittman, Potts & Trowbridge 1800 M Street, N.W.
Washington, D.C.
20036 s
e d i
Enclosure TMI-1, REQUEST FOR ADP'TIONAL INFORMATION REGARDING FLUENCE PROJECTIONS FOR 10 CFR 50.61 1895 the fluence to reach the screening criteria is Onpage4-6ofBggn/cm. This is inconsistent (a) with the last lint of 1.
2 stated as 7.0x10 i
Table 4-4 and (b) our own estimate which is close to your es}gmate yhich shows the fluence to reach the screening criteria = 6.4 x 10 n/cm.
Please clarify.
2.
In BAW-1895 it is stated that future flux reductions have not been taken intoaccggnt. gnder this assunption we estimate a 32 EFPY fluence =
9.1x10}g /cm.n/gm, however, the corresponding value in Table 4-4 is 15.45x n
Please state the assumptions and the projected low leakage loadings.
3.
In table 3-1 (BAW-1895) it is indicated that cycle 8 will be a very low leakage cycle. State the expected flux reduction for cycle 8 and also for cycles 7 and 6 and for cycles 1-5.
State the corresponding EFPYs to the end of the operating license.
l
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