ML20134N551

Forwards Request for Addl Info on 850723 Request for Exemption from 10CFR50.44(c)(3)(iii) Requirements Re Isolation Condenser Vent

ML20134N551
Person / Time
Site:	Oyster Creek
Issue date:	08/30/1985
From:	Zwolinski J Office of Nuclear Reactor Regulation
To:	Fiedler P GENERAL PUBLIC UTILITIES CORP.
References
NUDOCS 8509050187
Download: ML20134N551 (4)

Text

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F Docket No. 50-219 AUG 3 01925 Mr. P.- B. Fiedler Vice President and Director Oyster Creek Nuclear Generating Station Post Office Box 388 Forked River, New Jersey 08731

SUBJECT:

OYSTER CREEK ISOLATION CONDENSER VENT EXEMPTI0tl -

RE00EST FOR ADDITIONAL INF0 PPA. TION Re: Oyster Creek Nuclear Generating Station In a letter dated July 23, 1985, GPU Nuclear (GPUtl) requested an exemption from the compliance requirements of 10 CFR 50.44(c)(3)(fii) ard provided justification for CPUN's decision to cancel the installation of the vents on the isolation condenser at Oyster Creek. The staff is reviewing GPUN's request and finds that it needs additional information to complete its review.

Questions detailing this needed information are enclosed and must be responded to before the review can continue.

The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.

Sincerely, original daned by ( hu

& 6, John A. Zwolinski, Chief Operating Reactors Branch No. 5 Division of Licensing

Enclosure:

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% ,....* August 30, 1985 Docket No. 50-219 LS05-85-08-034 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:

SUPJECT: OYSTER CREEK ISOLATI0fl CONDENSER VENT EXEMPTION -

RE0 VEST FOR ADDITI0flAL INFORMATION Re: Dyster Creek Nuclear Generating Station In a letter dated July 23, 1985, GPU Nuclear (GPUN) re from the compliance requirements of 10 CFR 50.44(c)(3) (iii)quested an exemption and provided

.iustification for GPUN's decision to cancel the installation of the vents on the isolation condenser at Oyster Creek. The staff is revievino GPUN's request and finds that it needs additional information to complete its review.

Questions detailing this needed information are enclosed and must be responded to before the review can continue.

The reportino and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under l P.L.96-511.

Sincerely,

( c.M $ G -- --

r J

John A. Zwolinski, Chief Operating Reactors Pranch No. 5 Division of Licensing

Enclosure:

Request for Additional Infomation cc w/ enclosure:

See next page

Mr. P. B. Fiedler Oyster Creek Nuclear Oyster Creek Nuclear Generating Station Generating Station cc:

G. F. Trowbridge, Esquire Resident Inspector Shaw, Pittman, 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, Few Jersey 07102 Eugene Fisher, Assistant Director Regional Administrator, Region I Division of Environmental Ouality U.S. Nuclear Regulatory Commission Department of Environmental 631 Park Avenue Protection King of Prussia, Pennsylvania 19406 380 Scotch Road Trenton, New Jersey 0P628 BWR Licensing Panager GPU Nuclear 100 Interpace Parkway Parsippany, New Jersey 07054 Deputy Attorney General State of Few Jersey Department of Law and Public Safety 36 West State Street - CM 112 Trenton, New Jersey 08625 lk yor Lacey Township 81P West Lacey Road Forked River, New Jersey 08731 D. G. Holland Licensing Manager Oyster Creek Nuclear Generating Station Post Office Box 388 Forked River, New Jersey 08731

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ENCLCSUPE REQUEST FOR ADDITIONAL INFORMATION OYSTER CREEK NUCLEAR GENERATING STATION DOCKET NO. 50-219 OYSTER CREEK ISOLATI0tl CONDENSER VENT EXEMPTION REQUEST

1. The analysis in Attachment II to the July 23, 1985 exemption request is incomplete. Low pressure systems are always assumed to be available in the analysis, provided the reactor can be depressurized. Other events which result in hydrogen generation plus the need for the isolation condensers may be postulated. One example of such an event would involve a LOCA with core damane followed by isolation of the break and a loss of low pressure systems (CRD and feedwater also not available). In order to adequately assess the impact of isolation condenser venting versus no venting, the full spectrum of events requiring isolation condenser venting must be analyzed. Please provide these additional analyses.

2. Are there any negetive safety implications to adding isolation condenser vents?

3. Hill the installation of isolation condenser vents involve a significant increase in radiation exposure for workers?

.