ML17059B252
| ML17059B252 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 08/26/1996 |
| From: | Hood D NRC (Affiliation Not Assigned) |
| To: | Sylvia B NIAGARA MOHAWK POWER CORP. |
| References | |
| GL-92-01, GL-92-1, TAC-M92700, TAC-M92701, NUDOCS 9608280399 | |
| Download: ML17059B252 (10) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 2055$ 4001 August 26, 1996 Hr.
B. Ralph Sylvia Executive Vice President and Chief Nuclear Officer Niagara Hohawk Power Corporation Generation Business Group D-2 300 Erie Boulevard West
- Syracuse, NY 13202
SUBJECT:
CLOSEOUT FOR NIAGARA HOHAWK POWER CORPORATION (NHPC)
RESPONSE
TO GENERIC LETTER 92-01, REVISION 1, SUPPLEHENT 1
FOR THE NINE HILE POINT NUCLEAR STATION, UNIT NOS.
1
& 2 (TAC NOS.
H92700 AND H927001)
Dear Hr. Sylvia:
On Hay 19, 1995, the NRC issued Generic Letter (GL) 92-01, Revision 1,
Supplement-I (GL 92-01, Rev.
1, Supp.
1), "Reactor Vessel Structural Integrity."
In GL 92-01, Rev.
1, Supp.
1, the NRC requested that nuclear licensees perform a review of their reactor pressure vessel structural integrity assessments in order "to identify, collect, and report any new data pertinent to [the] analysis of [the] structural integrity of their reactor pressure vessels (RPVs) and to assess the impact of that data on their RPV integrity analyses relative to the requirements of Section 50.60 of Title 10 of the Code of Federal Regulations (10 CFR 50.60),
10 CFR 50.61, Appendices G
and H to 10 CFR Part 50 (which encompass pressurized thermal shock (PTS) and upper shelf energy (USE) evaluations),
and any potential impact on low temperature overpressure (LTOP) limits or pressure-temperature (P-T) limits."
Hore specifically, in GL 92-01, Rev.. 1, Supp.
1, the NRC requested that addressees provide the following information in their responses:
(1) a description of those actions taken or planned to locate all data relevant to the determination of RPV integrity, or an explanation of why the existing database is considered complete as previously submitted; (2) an assessment of any change in best-estimate chemistry based on consideration of all relevant data; (3) a determination of the need for the use of the ratio procedure in accordance with the established Position
- 2. 1 of Regulatory Guide (RG) 1.99, Revision 2, for those licensees that use surveillance data to provide a basis for the RPV integrity evaluation; and (4) a written report providing any newly acquired data as specified above and (1) the results of any necessary revisions to the evaluations of RPV integrity in accordance with the requirements of 10 CFR 50.60, 10 CFR 50.61, Appendices G and H to 10 CFR Part 50, and any potential impact on the LTOP and P-T limits in the technical specifications, or (2) a certification that previously submitted evaluations remain valid.
9608280399 960826 PDR ADCICK 0@000220 P
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Hr. B. Sylvia Au<
. 26, 1996 Revised evaluations and certifications were to include consideration of
- Position 2. 1 of RG 1.99, Revision 2, as applicable, and any, new data.
The information in Reporting Item (1) was to be submitted within 90 days of the issuance of the GL.
The information in Reporting Items (2) (4) was to be submitted within 6 months of the issuance of the'L.
The NRC staff has noted that NHPC submitted the information requested in Reporting Item (1) on August 16, 1995,'nd requested in Reporting Items (2)
(4) on November 20, 1995.
NMPC has provided new RPV data to the staff or has
'evised the RPV Data Sheets for,the Nine Mile Point Nuclear Station.
that the revised data does not, impact the LTOP and P-T Limits defined in the Nine Mile Point Nuclear Station Technical Specifications or compliance with the PTS and USE regulations (10 CFR 50.61 and 10 CFR Part 50, Appendices G and H, respectively).
NHPC had therefore indicated that the previously submitted evaluations for the Nine Nile Point Nuclear Station remain valid.
Since NHPC has provided-the-requested information, the staff is closing out TAC No. M92700/H92701 in regard to the Nine Nile Point Nuclear Station.
However, the staff will review the new RPV data at a later date.
Furthermore, the staff has also noted that the Owners Groups'eactor Vessel Working Groups activities to establish a comprehensive RPV information database could yield additional data relevant to your plant.
These activities are expected to be completed by the summer of 1997.
The staff will open a plant-specific TAC Number pending its review of the revised RPV data and any additional data that are provided as a result of the Owners Groups'ctivities.
We request that you provide us with the results of the ongoing Owners Groups'PV integrity programs relative to your plant.
'hank you for your cooperation.
Sincerely,
/s/
Darl S.
Hood, Senior Project Manager Project Directorate I-1 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation Docket Nos.
50-'220 and 50-410 cc:
See next page DISTRIBUTION:
~Docket~ile,'Varga PUBLIC JZwolinski PDI-1 Reading
=
JHi tchel 1 DOCUMENT NAME:
G: iNMP1-2i92-01. REV SLittle DHood OGC ACRS LDoerf1 ein, RGN-I To receive a copy of this document, indicate in the box:
"C" = Copy without attachment enclosure "E" = Co with attachment enclosure "N" - No co OFFICE HAHE DATE LA:PDI-1 SLittle 08/Qlp/96 E
PH:PDI-1 DHood/rsl 08/
/96 D:PDI-1 JHitc ell 08/
96 Official Recor opy 08/
/96 08/
/96
P.
\\
Mr. B. Sylvia Revised evaluations and certifications were to include consideration of Position
- 2. 1 of RG 1.99, Revision 2, as applicable, and any new data.
The information in Reporting Item (1) was to be.submitted within 90 days of the issuance of the GL.
The information in Reporting Items (2)
. (4) was to be submitted within 6 months of the issuance of the GL.
The NRC staff has noted that NMPC submitted the information requested in Reporting Item (1) on August 16,
- 1995, and requested in Reporting Items (2)
(4) on November 20, 1995.
NMPC has provided new RPV data to the staff or has revised the RPV Data Sheets for the Nine Mile Point Nuclear Station.
However,,
NMPC has indicated in its submittal to GL 92-01, Revision 1, Supplement 1,
that the revised data does not impact the LTOP and P-T Limits defined in the Nine Mile Point Nuclear Station Technical Specifications or compliance with the PTS and USE regulations (10 CFR 50.61 and 10 CFR Part 50, Appendices G and H, respectively).
NMPC had therefore indicated that the previously submitted evaluations for the Nine Mile Point Nuclear Station remain valid.
Since NMPC has provided the requested information, the staff is closing out TAC No. M92700/M92701 in regard to the Nine Mile Point Nuclear Station.
However, the staff will review the new RPV data at a later date.
Furthermore, the staff has also noted that the Owners Groups'eactor Vessel Working Groups activities to establish a comprehensive RPV information database could yield additional data relevant to your plant.
These activities are expected to be completed by the summer of 1997.
The staff will open a plant-specific TAC Number pending its review of the revised RPV data and any additional data that are provided as a result of the Owners Groups'ctivities.
We request that you provide us with the results of the ongoing Owners Groups'PV integrity programs relative to your plant.
Thank you for your cooperation.
Sincerely, Darl S.
Hood, Senior Project Manager Project Directorate I-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos.
50-220 and 50-410 cc:
See next page
)
B~ Ralph Sylvia Niagara Mohawk Power Corporation 0
Nine Hile Point Nuclear Station Unit Nos.
1 and 2
CC:
Mr. Richard B. Abbott Vice President and General Manager-Nuclear Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.
Box 63
- Lycoming, NY 13093 Mr. Hartin J.
HcCormick, Jr.
Vice. President Nuclear Safety Assessment and Support Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.
Box 63
- Lycoming, NY 13093 Ms. Denise J. Wolniak Manager Licensing Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.
Box 63
- Lycoming, NY-13093 Hr. Kim A. Dahlberg General Manager - Projects Niagar'a Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.
Box 63
- Lycoming, NY 13093 Mr. Norman L. Rademacher Plant Manager, Unit 1
Nine Mile Point Nuclear Station P.O.
Box 63
- Lycoming, NY 13093 Hr. John T.
Conway Plant Manager, Unit 2 Nine Mile Point -Nuclear Station P.O.
Box 63
- Lycoming, NY 13093 Regional Administrator, Region I U.
S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Resident Inspector U. S. Nuclear Regulatory Commission P.O.
Box 126
- Lycoming, NY 13093 Charles Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway New York, NY 10271 Hr. Paul D.
Eddy State of New York Department of
. Public Service Power Division, System Operations 3 Empire State Plaza
- Albany, NY 12223 Mr. Richard H. Kessel Chair and Executive Director State Consumer Protection Board 99 Washington Avenue
- Albany, NY 12210 Mark J. Wetterhahn, Esquire Winston
- 5. Strawn 1400 L Street, NW Washington, DC 20005-3502 Gary D. Wilson, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, NY 13202 Mr. F..William Valentino, President New York State
- Energy, Research, and Development Authority 2 Rockefeller Plaza
- Albany, NY 12223-1253 Supervisor Town of Scriba Route 8, Box 382
- Oswego, NY 13126 Mr. Richard Goldsmith Syracuse University College of Law E. I. White Hall, Campus Syracuse,'Y 12223 Hr. John V. Vinquist, MATS Inc.
P.O.
Box 63
- Lycoming, NY 13093
B. Ralph Sylvia Niagara Hohawk Power Corporation CC:
Hr. Jim Rettberg New York State Electric
- 5. Gas Corporation Corporate Drive Kirkwood Industrial Park P.O.
Box 5224 Binghamton, NY 13902-5224 Nine Hile Point Nuclear Station Unit Nos.
1 and 2
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