ML17223B261
| ML17223B261 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 09/12/1991 |
| From: | Norris J Office of Nuclear Reactor Regulation |
| To: | Goldberg J FLORIDA POWER & LIGHT CO. |
| Shared Package | |
| ML17223B262 | List: |
| References | |
| ALAB-603, TAC-68608, TAC-68609, NUDOCS 9109180230 | |
| Download: ML17223B261 (6) | |
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Docket Nos.
50-335 and 50-389 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555 September 12, 1991 Mr. J.
H. Goldberg President - Nuclear Division Florida Power and Light Company Post Office.box 14000 Juno Beach, Florida 33408-0420
Dear Hr. Goldberg:
SUBJECT:
ST. LUCIE, UNITS 1
AND 2 - 10 CFR 50.63 - STATION BLACKOUT (TAC NOS.
68608 AND 68609)
The Station Blackout (SBO) rule requires licensees to submit information as defined in 10 CFR 50.63 and provide a plan and schedule for conformance with the SBO rule.
The Florida Power and Light Company (FPL) provided responses to the SBO rule regarding St. Lucie, Units 1 and 2, by letters dated April 17,
- 1989, and Harch 7, 1990.
The responses were reviewed by the NRC staff and by Science Applications International Corporation (SAIC) under contract to the NRC.
In addition, a site audit was performed by a joint NRC/SAIC team headed by an NRC staff member on October 17-19, 1989.
On November 21, 1990, the staff issued a draft Safety Evaluation (SE) for FPL comments.
By letter dated December 21, 1990, FPL submitted comments on the draft SE.
On Hay 21, 1991, FPL met with the staff and discussed the staff's response to the'omments.
During the meeting FPL presented a list of proposed revisions to the draft SE issued on November 21, 1990.
The staff reviewed the proposed changes and has revised the SE to reflect the FPL-staff, interactions.
Paragraph (b) of 10 CFR 50.63 exempts certain plants from the requirement to submit information in response to the SBO rule if the capability to withstand SBO was specifically addressed and approved by the NRC in the operating license proceeding.
St. Lucie Unit 2 meets the above requirement because the issue of SBO was considered by the Atomic Safety Licensing Appeal Board (ALAB-603) and a
plant-specific analysis (UFSAR Section 15.10) was performed by the licensee which demonstrated that the plant could successfully withstand a complete loss of all AC power for at least 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
Therefore, our review is limited to St. Lucie Unit 1, except Section 3 which describes how the St. Lucie Unit 1 EDGs can be used to support an SBO on Unit 2 under the licensee's operating procedures.
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H. Goldberg September 12, 1991 The staff's evaluation of the required coping duration for St. Lucie Unit I is 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> (based on a target reliability of 0.95 and site-specific parameters).
Although St. Lucie Unit 2 has been analyzed only for a 4-hour coping duration, the staff concludes that the SBO withstand capability analysis performed for St. Lucie Unit 2 during the licensing proceeding was essentially equivalent to the coping analysis that would be required under the SBO rule, provided that reliability of the Unit 2 emergency diesel generators (EDGs) is maintained at 0.974 or better in accordance with the licensing basis for Unit 2.
Me find, contingent upon the FPL commitment to implement the requests presented in the enclosed SE, that St. Lucie Unit I conforms with.the SBO rule and the guidance of Regulatory Guide (RG) 1.155, Nuclear Management and Resources Council (NUMARC) 87-00 and NUMARC 87-00 Supplemental guestions/
Answers and Major Assumptions dated December 27, 1989 (issued to the industry by NUMARC January 4, 1990).
FPL should submit within 30 days of receipt of this letter a commitment to implement the requests and provide schedule for their implementation in accordance with 10 CFR 50.63(c)(4).
In addition, the following areas may require follow-up inspection by the NRC to verify that the implementation of any modifications and the supporting documentation which the licensee may propose as a result of this evaluation are adequate to meet the SBO rule.
Inspection guidance for this is being developed.
a.
Hardware and procedural modifications, b.
SBO procedures in accordance with RG 1.155, Position 3.4, and NUMARC 87-00, Section 4, c.
Operator staffing and training to follow the identified actions in the procedures, d.
EDG reliability program meets, as a minimum, the guidelines of RG 1.155, e.
Equipment and components required to cope with an SBO are incorporated in a gA program that meets the guidance of RG 1.155, Appendix A, f.
Review of the heating and ventilation calculations when they are completed for the dominant areas of concern during an SBO to assure that the systems and equipment therein are operable under the SBO conditions, and g.
Actions taken pertaining to the specific recommendations noted in the SE.
The guidance provided on Technical Specifications (TS) for an SBO states that the TS should be consistent with the Interim Commission Policy Statement on Technical Specifications.
The staff has taken the position that TS are required for SBO response equipment.
However, the question of how specifications for the SBO equipment will be applied is currently being
J.
H. Goldberg September 12, 1991 considered generically by the NRC in the context of the Technical Specification Improvement Program and remains an open item at this time.
In the interim, the staff expects plant procedures to reflect the appropriate testing and surveillance requirements to ensure the operability of the necessary SBO equipment.
If the staff later determines that TS,regarding the SBO equipment is warranted, the licensee will be notified of the implementation requirements.
We will close TAC Nos.
68608 and 68609 upon receipt of your commitment to implement the requests contained in the SE.
This requirement affects fewer than 10 respondents and, therefore, is not subject to Office of Management and Budget review under P.L.96-511.
Sincerely,
Enclosure:
As stated (Original Signed By)
Jan A. Norris, Sr. Project Manager Project Directorate II-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation cc w/enclosure:
See next page DISTRIBUTION:
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H. Goldberg Florida Power E Light Company St. Lucie Plant CC:
Jack Shreve, Public Counsel Office of the Public Counsel c/o The Florida Legislature ill Mest Madison Avenue, Room 812 Ta11ahassee, Florida 32399-1400 Senior Resident Inspector St. Lucie Plant U.S. Nuclear Regulatory Commission 7585 S.
Hwy AIA Jensen Beach, Florida 33457 Mr. Gordon Guthrie, Director Emergency management Department of Community Affairs 2740 Centerview Drive Tallahassee, Florida 32399-2100 Harold F. Reis, Esq.
Newman 5 Holtzinger 16I5 L Street, N.W.
Washington, DC 20036 John T. Butler, Esq.
- Steel, Hector and Davis 4000 Southeast Financial Center h1iami, Florida 33131-2398 Administrator Department of Environmental Regulation Power Plant Siting Section State of Florida 2600 Blair Stone Road Tallahassee, Florida 32301 Nr. James V. Chisholm, County Administrator St. Lucie County 2300 Yirginia Avenue Fort Pierce, Florida 34982 Mr. Charles B. Brinkman, Manager Washington Nuclear Operations ABB Combustion Engineering, Inc.
12300 Twinbrook Parkway, Suite 330 Rockvi 1 le, Maryland 20852 Hr. Jacob Daniel Nash Office of Radi ati on Contro 1 Department of Health and Rehabilitative Services 1317 Minewood Blvd.
Ta 1 1 ahassee, F 1orida 32399-0700 Regional Administr ator, Region II U.S. Nuclear Regulatory Commission 101 Narietta Street N.M., Suite 2900 Atlanta, Georgia 30323 fIr. R.
E. Grazio Director, Nuclear Licensing Florida Power and Light Company P.O.
Box 14000 Juno Beach, Florida 33408-0420