ML20141D179
| ML20141D179 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 03/27/1986 |
| From: | Rubenstein L Office of Nuclear Reactor Regulation |
| To: | Carey J DUQUESNE LIGHT CO. |
| References | |
| NUDOCS 8604070436 | |
| Download: ML20141D179 (4) | |
Text
a
- GAR 2 I W
.b
+
'{
Docket No. 50-334 DISTRIBUTION and 50-412 Docket Fue,
J. Partlow NRC PDR" ^ P. Tam Local PDR C. Vogan Mr. J. J. Carey, Vice President PAD #2 Rdg I. Lee Nuclear Group T. Novak ACRS (10)
Duquesne Light Company OELD Gray File Post Office Box 4 E. Jordan Shippingport, PA 15077 B. Grimes
Dear Mr. Carey:
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 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.
Sincerely,
/s/ l). (L /nc b&[or-Lester S. Rubenstein, Director PWR Project Directorate #2 Division of PWR Licensing-A
Enclosures:
As stated cc w/o enclosures: See next page PM: PAD #
- ADr2 PTam:he/(
L ubenstein 3/ff/86' 3/p;V86 B604070436 B60327 POR ADOCK 05000334 P
4 Mr. J. J. Carey Beaver Valley 1 Power Station Duquesne Light Company cc:
Mr. W. S. Lacey Mr. Thomas J. Czerpah Station Superintendent Mayor of the Burrough of Duquesne Light Company Shippingport Beaver Valley Power Station Post Office Box 26 Post Office Box 4 Shippingport, Pennsylvania 15077 Shippingport, Pennsylvania 15007 Pennsylvania Power Company Mr. K. Grada, Superintendent James R. Edgerly of Licensing and Compliance Post Office Box 891 Duquesne Light Company New Castle, Pennsylvania 16103 Post Office Box 4 Shippingport, Pennsylvania 15077 Ohio Environmental Protection Agency Division of Planning Mr. John A. Levin Environmental Assessment Section Public Utility Commission Post Office Box 1049 Post Office Box 3265 Columbus, Ohio 43216 Harrisburg, Pennsylvania 17120 Office of the Governor Gerald Charnoff, Esquire State of West Virginia Jay E. Silberg, Esquire Charleston, West Virginia 25305 Shaw, Pittman, Potts and Trowbridge 1800 M Street, N.W.
Charles A. Thomas Esquire Washington, DC 20036 Thomas and Thomas 212 Locust Street Karin Carter, Esquire Box 999 Special Assistant Attorney General Harrisburg, Pennsylvania 17108 Bureau of Administrative Enforcement 5th Floor, Executive House Irwin A. Popwsky, Equire Harrisburg, Pennsylvania 17120 Office of Consumer Advocate 1425 Strawberry Square Marvin Fein Harrisburg, Pennsylvania 17120 Utility Counsel City of Pittsburgh Governor's Office of State Planning 313 City-County Building and Development Pittsburg, Pennsylvania 15219 ATTN: Coordinator, Pennsv1vania State Clearinghouse Resident Inspector Post Office Box 1373 U.S. Nuclear Regulatory Comission Harrisburg, Pennsylvania 17120 Post Office Box 298 Shippingport, Pennsylvania 15077 Mr. Jess T. Shumate Comissioner State of West Virginia Department Department of Environmental Resources of Labor ATTN: Director, Office of 1900 Washington Street, East Radiological Health Charleston, West Virginia 25305 Post Office Box 2063 Harrisburg, Pennsylvania 17105
Duque'ne Light Company Beaver Valley 1 Power Station s
j CC' David K. Heydinger, M.D.
State Director of Health State Department of Health 1800 Washington Street East Charleston, West Virginia 25305 Regional Administrator, Region I U.S. Nuclear Regulatory Comission 631 Park Avenue King of Prussia, Pennsylvania 19406 Mr. Thomas M. Gerusky, Director Bureau of Radiation Protection Pennyslyania Department of Environmental Resources P.O. Box 2063 Harrisburg, Pennsylvania 17120
f.
,(
o t
Mr. J.
- 1. Carey Duquesne Light Company Beaver Valley ? Power Station ec:
Gerald Charnoff, Esq.
Mr. R. E. Martin, Manager Enc ineering Jay E. Silberg, Esq.
Beaver Valley Two Pro.iect Shaw, Pittman, Potts & Trowbridge Duquesne Light Company 1800 M Street, N.W.
Robinson Plaza Building No. ?, Suite 110 Washington, DC 70036 PA Route 60 Pittsburgh, Pennsylvania 15705 Mr. C. W. Ewing, Quality Assurance Zori Ferkin Manager Assistant Counsel Quality Assurance Department Governor Energy Council Duquesne Licht Company 1625 N. Front Street P. O. Rox 186 Harrisburg, PA 15105 Shippingport, Pennsylvania 15077 Mr. John J. Carey Vice President, Nuclear Duquesne Light Company Director, Pennsylvania Emergency P. O. Box 4 Management Agency Shippingport, Pennsylvania 15077 Room B-151 Transportation & Safety Building Harrisburg, Pennsylvania 17120 Mr. T. J. Lex Mr. Thomas Gerusky Westinghouse Electric Corporation Bureau of Radiation Protection Power Systems PA Department of Environmental P. O. Box 355 Resources Pittsburgh, Pennsylvania 15?30 P. O. Box 7063 Harrisburg, Pennsylvania 17170 Mr. P. RaySircar Stone & Webster Engineering Corporation BVPS-2 Records Management Supervisor P. O. Box 2325 Duquesne Light Company Boston, Massachusetts 02107 Post Office Box 4 Shippingport, Pennsylvania 15077 Mr. Glenn Walton U. S. NRC John A. Lee Esq.
P. O. 181 Duquesne Light Company Shippingport Pennsylvania 15077 10xford Centre 301 Grant Street Mr. Thomas E. Murley, Regional Admin.
Pittsburgh, Pennsylvania 15279 U. 5. NRC, Region i 631 Park Avenue King of Prussia, Pennsylvania 15729
-