ML20137F739
| ML20137F739 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 08/22/1985 |
| From: | Zwolinski J Office of Nuclear Reactor Regulation |
| To: | Fiedler P GENERAL PUBLIC UTILITIES CORP. |
| References | |
| NUDOCS 8508270071 | |
| Download: ML20137F739 (4) | |
Text
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SG2 2 lx5 Docket No. 50-219 DISTRIBUTION Docket File CJamerson NRC POR ACRS(10)
L PDR ASingh Mr. P. B. Fiedler HThompson LRiani Vice President and Director OELD DDilanni Oyster Creek Nuclear Generating Station EJordan Post Office Box 388 BGrimes Forked River, New Jersey 08731 JPartlow JZwolinski
Dear Mr. Fiedler:
JDonohew
SUBJECT:
PARTICIPATION IN GENERIC ISSUE 77 Re:
Oyster Creek Nuclear Generating Station The NRC staff is in the process of developing its policy regarding " flooding of safety equipment compartments by backflow through floor drains" which we have designated as Generic Issue 77. We are contacting several utilities to seek their voluntary assistance by responding to the enclosed questions. The possibility of GPU Nuclear's participation in this effort was discussed with Mr. M. Laggart and at that time he indicated a preliminary agreement to participate.
The purpose of this letter is to request that you review the enclosed questions and confirm your continued willingness to assist us in the resolution of this generic issue.
In order that we might develop our program schedule as soon as possible, please inform us within 30 days of receipt of this letter whether you can support the program and, if so, when you can respond to the enclosed questions.
OMB clearance is not required for this reauest since it is being transmitted to fewer than 10 addressees.
Sincerely, C.tt::al ab:cd by N
werg Jo1n A. Zwolinski, Chief Operating Reactors Branch No. 5 Division of Licensing
Enclosure:
As stated cc w/ enclosure:
See next page 0
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p WASHINGTON, D. C. 20555 August 22, 1985 Docket No. 50-219 Mr. P. B. Fiedler Vice President and Director Oyster Creek Nuclear Generating Station Post Office Box 388 Forked River, New Jersey 08731
Dear Mr. Fiedler:
SUBJECT:
PARTICIPATION IN GENERIC ISSUE 77 Re:
- Oyster Creek Nuclear Generating Station The NRC staff is in the process of developing its policy regarding " flooding of safety equipment compartments by backflow through floor drains" which we have designated as Generic Issue 77. We are contacting several utilities to seek their voluntary assistance by responding to the enclosed questions. The possibility of GPU Nuclear's participation in this effort was discussed with Mr. M. Laggart and at that time he indicated a preliminary agreement to participate.
The purpose of this letter is to request that you review the enclosed questions and confirm your continued willingness to assist us in the resolution of this generic issue.
In order that we might develop our program schedule as soon as possible, please infom us within 30 days of receipt of this letter whether you can support the program and, if so, when you can respond to the enclosed questions.
OMB clearance is not required for this request since it is being transmitted to fewer than 10 addressees.
Sincerely, John
. Zwolinski, Chief Operating Reactors Branch No. 5 Division of Licensing
Enclosure:
As stated cc w/ enclosure:
See next page
Mr. P. B. Fiedler Oyster Creek Nuclear i
Oyster Creek Nuclear Generating Station Generating Station cc:
G. F. Trowbridge, Escui-e Resident inspector Shaw, Pittnan, Potts and Trowbridge c/o U.S. NRC 1800 M Street, N.W.
Post Office Box 445 Washington, D.C.
20036 Forked River, New Jersey 08731 J.B. Liberman, Esquire Commissioner Bishop, Liberman, Cook, et al.
New Jersey Department of Energy 1155 Avenue of the Americas 101 Commerce Street New York, New York 10036 Newark, New Jersey 07102 Eugene Fisher, Assistant Director Regional Administrator, Region I Division of Environmental Quality U.S. Nuclear Regulatory Commission Department of Environmental 631 Park Avenue Protection King of Prussia, Pennsylvania 19406 380 Scotch Road Trenton, New Jersey 08628 RWR Licensing Manager CN Nuclear 100 Interpace Parkway Parsippany, New Jersey 07054 Deputy Attorney General State of New Jersey Department of Law and Public Safety 36 West State Street - CN 112 Trenton, New Jersey 08625 Mayor
' Lacey Township 818 West Lacey Road Forked River, New Jersey 08731 D. G. Holland Licensing Manager Oyster Creek Nuclear Ger,erating Station Post Office Box 388 Forked River, New Jersey 08731
1 ENCLOSURE r,
REQUEST FOR INFORMATION GENERIC ISSUE 77 I
1.
Provide a detailed discussion of the equipment and floor drainge system (s) which serve safety-related equipment or compartments containing safety-related equipment or compartments. Include diagrams as appropriate.
As part of the discussion, describe the features which will prevent back-flow from any area into compartments containing safety-related equipment.
i This discussion should include the drainage system and any other compart-
-ment openings such as doors, unsealed penetrations of grating through which fluid may flow. Sources of fluid to be considered are external flooding (ground water seepage, surface influence from rivers, lakes and rain fall ponding) and flooding due to tank failures and pipe breaks including failure of the expansion joints in the circulating water system. The back-flowing fluids to be considered are water, steam and hot air. Confirm for those conditions ' identified above and that redundant safety-related equip-ment will not be adversely affected by fluid ingress into the equipment compartments.
I 2.
Describe the design basis for siring the equipment and floor drainage systems and the means.for assuring that they can effectively handle the maximum leakage flow conditions in the specific plant areas of concern housing redundant safety-related equipment.
!q 3.
Indicate any past incidents of drainage system backflow or other concern for failure of redundant safety-related equipment that has arisen or been I
postulated in the past due to a fluid leak or harsh environment in safety-
,related equipment areas.
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