ML17346A888

Forwards Results of Initial Safety Evaluation Re near-term Flux Reduction Program & part-length Burnable Absorber Assemblies.Supplemental Safety Evaluation Encl

ML17346A888
Person / Time
Site:	Turkey Point
Issue date:	02/27/1985
From:	Varga S Office of Nuclear Reactor Regulation
To:	Wiggins J FLORIDA POWER & LIGHT CO.
Shared Package
ML17346A889	List: ML17346A888 ML17346A890 ML17346A891
References
REF-GTECI-A-49, REF-GTECI-RV, TASK-A-49, TASK-OR TAC-54428, TAC-55035, NUDOCS 8503130301
Download: ML17346A888 (5)

Text

Docket Nos.

50-250 and 50 25]

February 27, 1985 Mr. J.

W. Williams, Jr., Vice President Nuclear Energy Department Florida Power and Light Company Post Office Box 14000 Juno Beach, Florida 33408 DISTRIBUTION o

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Reference:

TAC Nos.

54428 and 55035

SUBJECT:

NEAR TERM FLUX REDUCTION PROGRAM - TURKEY POINT PLANT UNITS 3 8( 4 By letters dated March 1, 1984, April 2,

1984, June 4, 1984 and August 22, 1984, you provided the integral neutron source data we requested in our letters of November 17, 1983 and July 26, 1984.

We have evaluated the data to verify the near term flux reduction resulting from your Pressurized Thermal Shock (PTS) program for the Turkey Point Plant.

The results of our initial Safety Evaluation (SE) are provided in Enclosure 1 to this letter.

In reviewing your near term flux reduction

program, we assessed the performance of the part-length burnable absorber assemblies designed explicitly for flux reduction to the pressure vessel circumferential welds and concluded that the flux reduction factor is 2.6.

This conclusion was based on independent audit calculations performed by our technical consultants at Brookhaven National Laboratory.

However, our initial evaluation did not take into account the revised value of the required fast neutron fluence for Turkey Point Plant, Units 3 and 4, to reach the PTS screening criterion.

The revised value is based on the details provided in our SE relating to Reactor Vessel Materials Data for the Turkey Point Vessels which was provided to you in our letter dated April 26, 1984.

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9 W W4'he results 'of our supplemental SE, provided in Enclosure 2, indicates that the combination of the new fluence value and the present loading flux "reduction will allow both plants to operate for 32 Effective Full Power Years (EFPY) without reaching the PTS screening criterion.

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February 27, 1985 equivalent to the 40 year licensed life considering a conservative capacity factor of 80%.

This conclusion is based on the current low leakage loading factor.

This completes our review of your near term flux reduction program.

Sincerely,

/s/DWigginton/for S.

Varga Enclosures':

As stated Steven A. Varga, Chief Operating Reactors Branch ¹1 Division of Licensing cc w/enclosure~s':

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Florida Power and Light Company Turkey Point Plants Units 3 and 4

cc:

Harold F. Reis, Equire Newman and Holtzinger, P.C.

1615 L Street, N.W.

Washington, DC 20036 Mr. Jack Shreve Office of the Public Counsel Room 4, Holland Building Tal 1 ahassee, Fl orida 32304 Norman A. Coll, Esquire

Steel, Hector and Davis 4000 Southeast Financial Center Miami, Florida 33131-2398 Mr.

Ken N. Harris, Vice President Turkey Point Nuclear Plant Florida Power and Light Company P.O.

Box 029100 Miami, Florida 33102 Mr.

M. R. Stierheim County Manager of Metropolitan Dade County Miami, Florida 33130 Resident Inspector Turkey Point Nuclear Generating Station U.S. Nuclear Regulatory Comnission Post Office Box 57-1185 Miami, Florida 33257-1185 Regional Radiation Representative EPA Region IV 345 Courtland Street, N.W.

Atlanta, GA 30308 Intergovernmental Coordination and Review Office of Planning 5 Budget Executive Office of the Governor The Capitol Building Tallahassee, Florida 32301 Administrator Department of Environmental Regulation Power Plant Siting Section State of Florida 2600 Blair Stone Road Tallahassee, Florida 32301 James P. O'Reilly Regional Administrator, Region II U.S Nuclear Regulatory Coranission Suite 2900 101 Marietta Street

Atlanta, GA 30303 Martin H. Hodder, Esquire 1131 N.E. 86th Street Miami, Florida 33138 Joette Lorion

?269 SW 54 Avenue Miami, Florida 33143 Mr. Chris J. Baker, Plant Manager Turkey Point Nuclear Plant Florida Power and Light Company P.O.

Box 029100 Miami, Florida 33102 Attorney General Department of Legal Affairs The Capitol Tallahassee, Florida 32304 Mr. Allan Schubert, Manager Public Health Physicist Department of Health and Rehabilitative Services 1323 Winewood Blvd.

Tallahassee, Florida 32301