ML20247F221
| ML20247F221 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 09/08/1989 |
| From: | Hebdon F Office of Nuclear Reactor Regulation |
| To: | Dewease J LOUISIANA POWER & LIGHT CO. |
| Shared Package | |
| ML20247F226 | List: |
| References | |
| TAC-59156, NUDOCS 8909180108 | |
| Download: ML20247F221 (3) | |
Text
..
September 8, 1989
?D6cket No. 50-382
Mr. J; G. Deweasebent-- Nuclear Operations Senior Vice Presi Louisiana Power and Light Company Post Office Box 60340 New Orleans Louisiana -70160
Dear Mr. Dewease:
SUBJECT:
SAFETY EVALUATION REPORT FOR WATERFORD, UNIT 3, COMPLIANCE WITH THE ATWS RULE, 10 CFR 50.62 (TAC N0. 59156)
The ATWS Rule (10 CFR 50.62, " Requirements for Reduction-of Risk from Anticipated Transients Without S:: ram (ATWS) Events for Light-Water-Cooled Nuclear Power Plants") requires improvements in the design and operation of commercial nuclear power' facilities to reduce-the likelihood of failure to shut dcwn-the reactor following anticipated transients, and to mitigate the consequences of-an ATWS event. The requirements for Combustion Engineering plants such as l
Waterford are to provide a' diverse scram system (DSS). diverse emergency.-
l feedwater actuation system (DEFAS). and diverse initiation of turbine trip i
(DTT). Paragraph (c)(6) of.the rule requires that'information sufficient to
' demonstrate compliance with the requirements be submitted to NRR.
i
. Louisiana Power and Light Company provided information concerning implementa-tion of the ATWS Rule-requirements at Waterford, Unit 3 by letters dated October 7,1988, February 3, March 1, and July 17, 1989. The staff-and the l
EG&G Idaho Inc., our consultant, have reviewed this information. Based on this review, we have concluded that the DSS, DEFAS,.and DTT designs are acceptable.-
The. details of our review are discussed in the enclosed Safety Evaluation.
It.
1 should be noted that we are currently evaluating the need for technical specifica-tion operability and surveillance requirements'for ATWS. equipment. The results
.of the evaluation will be made available upon completion.. Installation and operation of ATWS equipment should not'be delayed pending the outcome.of the technical specification _ evaluation.
Sincerely,
/s/
Frederick J. Hebdon, Director.
Project Directorate IV Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation
Enclosure:
l Safety Evaluation cc w/ enclosure:
l See next page DISTRIBUTION j
Docket file #
NRC PDR Local PDR PD4 Reading GTHolah'an"*
ADR4 F. Hebdon P. Noonan D. Wigginton 0GC-Rockville E. Jordan B. Grimes
- [
ACRS (10)
PD4 Plant File l
)
PD4/Dh
. PD4/LA-PD4/PM PHoonan DWigginton:sr FHebdon l
.09/7/89 09/}/89 09/g/89 8909180108 890908 PDR ADOCK 0500038'2
\\
s P
W /jna
?.,
UNITED STATES
'^f
- e 3
NUCLEAR REGULATORY COMMISSION j
wasmuotow,0. c. 20sss 5, k...../
September 8, 1989 Docket No. 50-382 l
Mr. J. G. Dewease l
Senior Vice President - Nuclear Operations Louisiana Power and Light Company i
Post Office Box 60340 New Orleans, Louisiana 70160
Dear Mr. Dewease:
SUBJECT:
SAFETY EVALUATION REPORT FOR WATERFORD, UNIT 3, COMPLIANCE WITH THE ATWS RULE, 10 CFR 50.62 (TAC NO. 59156)
The ATWS Rule (10 CFR 50.62, " Requirements for Reductiun of Risk from Anticipated Transients Without Scram (ATWS) Events for Light-Water-Coolec Nuclear Power Plants") requires improvements in the cesign and operation of ccmmercial nuclear power facilities to reduce tbc likelihood of failure to shut down the reactor following anticipated transients, and to n.itigEtt the Consequences of an ATWS event. The requirements for Combustion Engineering plants such as Waterford are to provide a diverse scram system (DSS), diverse emergency feedwater actuaticr system (DEFAS), and diverse initiation of turbine trip
.(DTT'.
Faragraph (c)(6) of the rule requires that irfcrmation sufficiert te demonstrate compliEnce with the requirements be subr:itted to NRR.
Louisiana Fower and Light Ccapany provided infor7ation concerning impleirenta-tion of the ATWS Rule requirements at Waterford, Unit 3 by letters dated October 7,1988, February 3, Parch 1, and July 17, 1989. The staff and the EG&G Idaho Inc., our ccrsultant, have reviewed this information.
Based er this review, we have concluded that the DSS, DEFAS, and DTT designs are acceptabic.
The cetails of our review are discussed in the enclosed Safety Evaluation.
It should be noted that we are currently evaluating the need for technical specifica-tion operability and surveillance requirements for ATWS equipnent. The results of the evaluation will be made available upcn completion.
Installation ano operation of ATWS eccipment should not be delayed pending the outcome of the technical specification evaluation.
Sincerely, Y -..e.
l k
Frederick J. Heb n, Director Project Directorate IV Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation e
Enclosuru Sefety Evaluation ec w/ enclosure:
Src next page
- - _ _ _ _ _ _ _ _ _ _. _ _ _ _ _ _ _ _ _ _ ~ _ _ _ _ _ _ _ _ _ _ _ _. _ _ _ _. _ _ _ _ _ _ _ _ _ _ _. _ _ _ _ _... _ _ _.. _. _ _ _ _ _. _
Mr; Jerrold G. Dewease Waterford 3 4
Louisiana Power & Light Company cc:
W. Malcolm Stevenson, Esq.
Regional Administrator, Region IV Monroe & Leman U.S. Nuclear Regulatory Commission 201 St. Charles Avenue, Suite 3300 Office of Executive Director for New Orleans, Louisiana 70170-3300 Operations 611 Ryan Plaza Drive, Suite 1000 Mr. E. Blake Arlington, Texas 76011 Shaw, Pittman, Potts & Trowbridge 2300 N Street, NW Mr. William H. Spell, Administrator l
Washington, D.C.
20037 Nuclear Energy Division Office of Environmental Affairs Resident Inspector /Waterford NPS Post Office Box 14690 Post Office Box 822 Baton Rouge, Louisiana 70898 K111ona, Louisiana 70066 Mr. Ralph T. Lally President, Police Jury Manager of Quality Assurance St. Charles Parish Middle South Services, Inc.
Hahnville, Louisiana 70057 Post Office Box 61000 New Orleans, Louisiana 70161 Chairman William A. Cross Louisiana Public Service Commission Bethesda Licensing Office One American Place, Suite 1630 3 Metro Center Baton Rouge, Louisiana 70825-1697 Suite 610 Bethesda, Maryland 20814 Mr. R. F. Burski Nuclear Safety and Regulatory Affairs Manager Louisiana Power & Light Company 317 Baronne Street New Orleans, Louisiana 70112 C
w