ML20137L115
| ML20137L115 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 01/22/1986 |
| From: | Caruso R Office of Nuclear Reactor Regulation |
| To: | Leonard J LONG ISLAND LIGHTING CO. |
| References | |
| NUDOCS 8601270087 | |
| Download: ML20137L115 (4) | |
Text
. _ _
JAN 2 21%6 Docket No. 50-322
. _ DISTRIBUTION Docket File.
RCaruso NRC PDR EHylton Lccal FDR ACRS (10)
Mr. John D. Leonard, Jr.
PD#4 Reading Vice President-Nuclear Operations RBernero Long Island Lighting Company Bordenick, OELD Post Office Box 618 EJordan Wdding River, New York 11792 BGrimes JPartlow
Dear Mr. Leonard:
SUBJECT:
REPORTS ON PRA INSIGHTS Enclosed are two draft reports concerning technical insights gained from Probabilistic Risk Assessments (PRAs).
These reports are the outcome of an ongoing effort to make available and utilize in numerous technical and managerial activities the information in probabilistic risk assessments regarding the factors which dominate the risk associated with nuclear power plants. This effort incluces identification of the features of design or operational practices which have been found to be important to safety in the types of plants which have been subjected to risk assessments.
In additien, the section on insights into PRA method focuses on areas which are sensitive to the results and the overall perception of plant weaknesses and vulnera-bilities.
In particular, these reports contain discussions of:
general insights on plant strengths and weaknesses gained from PRAs; the contribution to ccre r.elt frequency from classes of sequences irduced by various initiating events; l
modifications, both hardware and procedural, which have been implemented to address problems identified in the conduct or as a result of PRAs; insights into PRA methodologies; and the contribution to treasures of risk (core melt frequency and consequences of radioactive releases) from systems, components and events.
These reports "ill be published in their final forms in approximately two months. These reports are being provided to you, as well as all other licensees, in advance of formel publication for your information.
If, after reviewing these reports, you wish to provide consnents to the staff, please provide them by February 24, 1966.
Sincerely, orMna sunmi by i
l Ralph Caruso, Project Manager BWR Project Directorate No. 4 Division of BWR Licensing
Enclosures:
As stated l
,See next page j
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am Docket No. 50-322 hr. John D. Leonard, Jr.
Vice President-Nuclear Operations Lorig Island Lighting Company Post Office Box 618 Wading River. Mcw York 11792
Dear Mr. Leonard:
SUDJECT: REPORTS ON PRA INSIGHTS Enclosed are two draf t reports concerning technical insights 941ried f rcn Prebebilistic Risk Assessments (FRAs). These reports are the outcome of an ongoing effort to make available and utilize in nunerous technical and managerial activities the information in prob 6bilistic risk assessments regarding the factors which dominate the risk associated with nuclear power plants. This effort includes identification of the features of design or operational practices which have been found to be inportant to safety in the types of plants which have been subjected to risk assessments.
In addition, the section on insights inty PRA rnethod fccuses on areas which are sensitive to the results and the overall perception of plant weaknesses and vulnera-bilities.
In particular, these reports contain discussions of: general insights on pl:.nt strengths ano weaknesses gained from PRAs; the contribution to core melt frequency from classes of sequences induced by various initiating events; ncdifications, both hardware and procedural, which have been implemented to address problems identified in the conduct or as a result of PRAs; insigFts into PPA rethodologies; and the contribution to measures of risk (core relt frequency and consequences of radioactive releases) from systers, components and events.
These rcports will be published in their finel forms in approximately tuc months. These reports are being provided to you, as well as all other licensees, in advance of fonnal publication for your information.
If, after reviewing these reports, you wis1 to provide corrents to the staf f, please provide them by February 24, 1986.
Sincerely, Y * [ f[il4ttdt
/
A hg b
Ralph aruso. Project liasiager PVR froject Directorate No. 4 Division of BWR Licensing
Enclosures:
Ar stated cc: See next pagc
O 1
Mr. John D. Leonard, Jr.
Shoreham Nuclear Power Station
]
Long Island Lighting Company (list 1) 1 l
CC Stephen B. Latham, Esq.
Gerald C. Crotty, Esq.
John F. Shea III, Esq.
Ben Wiles, Esq.
Twomey, Latham & Shea Counsel to the Governor Attorneys at Law Executive Chamber i
Post Office Box 396 State Capitol 33 West Second Street Albany, f'ew York 12224 i
Riverhead, hew York 11901 i
Herbert H. Brown, Esq.
i Alan S. Rosenthal Esq., Chairman Lawrence Coe Lanpher, Esq.
Atenic Safety & Licensing Appeal Board Karla J. Letsche, Esq.
i U.S. Nuclear Regulatory Comission Kirkpatrick & Lockhart Washington, D.C.
20555 1900 M Street, NW - 8th Floor Washington, D.C.
20036 W. Taylor Reveley, III, Esq.
i i
Hunton & Willians Dr. Honroe Schneider 707 East Main Street North Shore Committee Post Office Box 1535 Post Office Box 231 kichrrcr,d, Virginia 23212 Wading River, New York 11792 Howard A. Wilber Fabian G. Palomino, Esq.
Atomic Safety & Licensing Appeal Board Special Counsel to the Governor U.S. Nuclear Regulatory Com,ission Executive Chamber - State Capitol Washington, D.C.
20555 Albany, New York 1222d I
Atomic Safety & ticensing Board Panel Anthony F. Earley, Jr., Esq.
U.S. Nuclear Regulatory Comission General Counsel Washington, D.C.
20555 Long Island Lighting Company 175 East Old County Road Atomic Safety & Licensing Appeal Board Hicksville, New York 11801 1
Panel i
U.S. Nuclear Regulatory Comission Mr. Lawrence Britt Washington, D.C.
20555 Shoreham Nuclear Power Station Post Office Box 618 Gary J. Edles, Esq.
Wading River, New York 11792 Atomic Safety & Licensing Appeal Board l
U.S. Nuclear Regulatory Commission Partin Bradley Ashare, Esq.
Washington, D.C.
20555 Suffolk County Attorney f
H. Lee Dennison Building Richard M. Kessel Veteran's Memorial Highway Chairman & Executive Director Hauppauge, New York 11788 New York State Consumer Protection Board Room 1725 Resident inspector l
250 Broadway Shoreham NPS i
New York, hew York 10007 U.S. Nuclear Regulatcry Comission i
i Post Office Box B Jonathan D. Feinberg, Esq.
Rocky Point, New York 11776 New York State Departnent of Public Service kegional /dministrator, Region !
)
Three Empire State Plaza U.S. Nuclear Regulatory Comission Albany, New York 122i.3 631 Park Avenue I
King of Prussia, Perrsylvania 19406
. Shorehan(1) cc:
Robert Abrams, Esq.
Attorney General of the State of New York ATTU: Peter Bienstock, Esq.
Department of Law State of New York Two World Trade Center Room 46-14 New York, New York 10047 Mr. William Steiger Plant Manager Shoreham Nuclear Power Station Post Office Box 628 Wading River, hew York 11792 MHB Technical Associates 1723 Hamilton Aenue - Suite K San Jose, California 95125 Honcrable Peter Cohalan Suffolk County Executive County Executive /Legisl6tive Puilding Veteran's Memorial Highway Hauppauge New York 11788 Mr. Jay Dunkleberger New York State Energy Office Agency Building 2 Empire State Plaza Albany, New York 12223 Ms. Nora Bredes Shoreham Opponents Coalition 195 East Main Street Smithtown, New York 11787 Chris Nolin New York State Assembly Erergy Connittee 6E6 Legislative Office Buildir.g Albany, New York 1224E Peter S. Everett, Esq.
Hunton & Williams 2000 Pcnnsylvania Avenue, NW Washington, D.C.
20036
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