ML18092B053
| ML18092B053 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 03/17/1986 |
| From: | Varga S Office of Nuclear Reactor Regulation |
| To: | Corbin McNeil Public Service Enterprise Group |
| References | |
| NUDOCS 8603240072 | |
| Download: ML18092B053 (2) | |
Text
March 17, 1986 Docket Nos. 50-272 and 50-311 Mr. C. A. McNeill, Jr.
Vice President - Nuclear Public Service Electric and Gas Company Post Office Box 236 Hancocks Bridge, New Jersey 08038
Dear Mr. McNeill:
SUBJECT:
REPORTS ON PRA INSIGHTS D,ISTRIBUTION Wocket File LPDR PAD-3 Rdg D. Fischer H. Thompson B. Grimes ACRS 10 w/o enclosures NRC PDR Gray File C. Vogan OELD E. Jordan J. Partlow 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 PRAs 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 important to safety in the types of plants which have been subjected to risk assessments.
In addition, the section on insights into PRA methodologies focuses on areas which are sensitive to the results and the overall perception of plant weaknesses and vulnerabilities.
In particular, these reports contain discussions of:
general insights on plant strengths and weaknesses gained from PRAs; the contribution to core melt frequency from classes of sequences induced by various initiating events; 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 measures of risk (core melt frequency and consequences of radioactive releases) from systems, components and events.
These reports are being provided to you, as well as all other licensees, in advance of formal publication for your information.
Your comments and suggestions are welcome on these reports.
Enclosures:
As stated cc:
See next page PAD-3 CVo~an ~
03NVB6 PAhiZ-D~~r/pws 0317/86
(
8603240072 860317 PDR ADOCK 05000272 P
\\
I Sincerely,
/s/JNorris for SVarga Steven A. Varga, Director PWR Project Directorate #3 Division of PWR Licensing-A
i l-
! I, J I,.
i r*.
1:
I Mr. t. A. McNeill Public Service Electric & Gas Company_, Salem Nuclear Generating Station cc:
Mark J. Wetterhahn, Esquire Conner and Wetterhahn Suite 1050 1747 Pennsylvania Avenue, NW Washington, DC 20006 Richard Fryling, Jr., Esquire Assistant General Solicitor Public SP.rvice Electric & Gas Company P. O. Box 570 - Mail Code T5E Newark, New Jersey 07101 Gene Fisher, Bureau of Chief Bureau of Radiation Protection 380 Scotch Road Trenton, New Jersey 08628 Mr. John M. Zupko, Jr.
General Manager - Salem Operations Public Service Electric & Gas Company Post Office Box E Hancocks Bridge, New Jersey 08038 Robert Traae, Mayor Lower Alloways Creek Township Municipal Hall Hancocks Bridge, New Jersey 08038 Thomas Kenny, Resident Inspector Salem Nuclear Generating Station U.S. Nuclear Regulatory Commission Drawer I Hancocks Bridge, New Jersey 08038 Richard F. Engel Deputy Attorney General Department of Law and Public Safety CN-112 State House Annex Trenton, New Jersey 08625 Frank Casolito~ Action Chief Bureau of Radiation Protection Department of Environmental Protection 380 Scotch Road Trenton, New Jersey 08628 Richard B. McGlynn, Commission Department of Publi~ Utilities State of New Jersey*
101 Commerce Street Newark, New Jersey 07102 Mr. David Wersan Assistant Consumer Advocate Office of Consumer Advocate 1425 Strawberry Square Harrisburg, Pennsylvania 17120 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 Lower Alloways Creek Township c/o Mary O. Henderson, Clerk Municipal Building, P.O. Box 157
- Hancocks Bridge, New Jersey 08038 Mr. Bruce A. Preston, Manager Nuclear Licensing & Regulation Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038