ML19332B139

Submits Interim Actions for Plant Operation,Pending Final Resolution of Atws.Emergency Operation Procedural Review May Include NRC Site Visit Prior to Issuance of OL

ML19332B139
Person / Time
Site:	Marble Hill
Issue date:	09/12/1980
From:	Tedesco R Office of Nuclear Reactor Regulation
To:	Sheilds S PSI ENERGY, INC. A/K/A PUBLIC SERVICE CO. OF INDIANA
References
NUDOCS 8009260071
Download: ML19332B139 (5)

Text

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NUCLEAR REGULATORY COMMISSION C

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SEP 1 2 580 Docket Nos.:

STN 50-546 and STN 50-547 Mr. S. W. Shields Senior Vice President Nuclear Division P. O. Box 190 New Washington, Indiana 47162

SUBJECT:

INTERIM ACTIONS NEEDED FOR PLANT OPERATION PENDING FINAL RESOLUTION OF ANTICIPATED TRANSIENTS WITH FAILURE TO SCRAM (ATWS) (WESTINGHOUSE PWR)

In Cecember 1978 the Nuclear Regulatory Commission (NRC) staff issued Volume 3 of NUREG-0460 which describes the proposed type of plant modifications the staff believes are necessary to reduce the risk from anticipated transients with failure to scram (ATWS) to an acceptable level. The NRC's Regulatory Requirements Review Committee completed its review in January 1979, and concurred with the staff's approach described in Volume 3 of NUREG-0460, insofar as it applies to your plant.

The staff has issued requests for the industry to supply generic analyses to confirm the ATWS mitigation capability described in Volume 3 of NUREG-0460. Subsequently, the staff plans to present its recommendations for rulemaking on ATWS to the Conni ssion. The Commission would, by rulemaking, determine the required modifications to resolve ATWS concerns and the required schedule for the implementation of such modifications. Your plant would, of course, be subject to the Commission's decision in this matter.

Based on considerations described in pages 42 through 45, Volume 3 of NUREG-0460, the staff generally concluded that plants with operating licenses can continue to garate without undue risk to the health and safety of the public during the estimated 2 to 5 year period needed to implement the necessary modifications.

However, the staff believes the following steps should be taken as a prudent course prior to the issuance of an operating license in order to further reduce the risk from ATWS events during the interim period before the required plant modifications as determined by the Commission are completed.

1.

An emergency operating procedure should be developed for an ATWS event, including consideration of scram indicators, rod position indicators, flux monitors, pressurizer level and pressure indicators, pressurizer relief valve and safety valve position indicators, coolant average temperature, containment temperature and pressure indicators, steam generator level, pressure and flow indicators, and any other alams 8009260071

, SEP 12 GB0 annunciated in the control room including alams not processed through the electrical portion of the reactor scram system. The emergency operating procedure should be sufficiently simplified and unambiguous to permit prompt ATWS recognition.

2.

The emergency operating procedure should describe actions to be taken in the event of an ATWS including consideration of manually scraming the reactor by using the manual scram buttons, prompt actuation of the ausiliary feedwater system to assure delivery of the full capacity of this system, and initiation of turbine trip. These actions must be taken imediately following the occurrence of the event. Actions should also include prompt initiation of baration by actuation of the high pressure safety injection system to bring the plant to a safe thtdown condition.

We require that you submit your ATWS emergency operating procedure for our review.

Our review may include a visit to your plant to determine the feasibility of implementing your proposed procedures through operator simulation of the steps.

Our evaluation must conclude that an acceptable procedure and operator training are completed prior to the issuance of a full power operating license.

In your letter of August 5,1980, you stated that construction of Unit 1 of the Marble Hill Nuclear Generating Station would be cmplete in June,1986. Ycur application for an operating license for Ma.-ble Hill was tendered on June 1,1979 and was placed in storage. Our environmental review is normally started 24 months prior to completion of construction and our safety review is normally started 33 months prior to completion of construction. This includes time for review by the Advisory Committee on Reactor Safeguards and time for public hearings by the Atomic Safety and Licensing Board. As a result, we plan to initiate our preacceptance review of your application approximately 3 years prior to completion of construction for Unit 1 of the Marble Hill Plant. Before initiation of the acceptance review, we will send our Caseload Forecast Panel to the Marble Hill site to review the status of your construction effort and verify your construction completion date. This site visit is tentatively scheduled for Spring of 1983.

Sincerely, W

Rot,ert L. Tedesco, Assistant Director for Licensing Division of Licensing cc:

See next page

M r.- S. W Shields SInfor Vico Prcs'.'ent fluclear Division P.O. Box 190 New Washington, Iadiana 47162 CCs:

Charles W. Campbell, Esq.

Vice President and General Counsel Public Service of Indiana 1000 E.~ Main Street Plainfield, Indiana 4d168

'Mr. Willian Kortier Atanic Power Distribution Westinghousa Electric Corporation P. O. Box 355 Pittsburgh, Pennsylvania' 15230 -

Mr. P. L. Wattelet Sargen?. f Lundy Engineers 55 Ea a Monroe Street Chicago,11linois 60603 Harry H. Voigt, Esq.

LeBoeuf, tamb. I.eiby & MacRae 1333 New Hdapshire Avenue, N.W.

Washington, D. C.

20036 George A. Leininger, Jr., Esq.

City Attorney, City of Madison P. O. Box 826 hadison, Indiana 47250 Mr. Robert Gray Rural knut.e #1 Hanover, Indiana 47243 J. Firuce Hiller, Esq.

Jefferson County Attorney 1129 Kentucky Home Life Building Louisville, Kentucky 40202 Ted R. Todd, Esq.

Attorney for the Coard of Comn: 1oners of the County

.of Jetforson, Indiana

'427. East Main Street Madison, Indiana 47250 Thcmas M. Dattilo, Esq.-

Met for9 7. Dattilo 311 Ea st liain Street Madtson,-Indiana 47250.

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cc (continued) Joseph B. Helm, Esq.

Brown, Todd & Heyburn

' Sixteenth Floor-Ci tizens Plaza.

Louisville, Kentucky 40202 Michael J. Walro, Esq.

Attorney for the Planning Coard and the Board of Zoning Appeals of defferson County l

427 East. Main Street Madison, Indiana 47250 l

Mr. Robert C. Slover i

Save the Valley, Inc.

P. O. Box 813 l

Madison, Indiana 47250 l

Wal ker C. Cunningham, Jr., Esq.

l 1129 Kentucky Horre Life Building Of fice of the Jefferson County Attorney Louisvilie,. Kentucky 40202 David K. Martin, Esq Assistant Attorney Generals Room 34, State Capitol frankfort, Kentucky 40601 Donald J. Ridings, Esq.

Attorney for Jefferson County 610 Old Louisville frust Building l

Louisville, Kentucky 40202 l

l Bill V. Seiller, Esq.

Eun, f4cKensie and l' eden l

2100 Commonwealth Building l

Louisville, Kentucky 40202 l

l Ms. Marie Horine, President l

Save turble flill i

Rural Route #2 Lexington,. Indiana 47133 Mrs. David G. Frey

-Solar Energy Coranittee, SAS 2625 S. Smith Road Blocaington, Indiana 47401 i

l Mr. Ral.h C. Pickard l

Indiand Stat e Board of Health l

1330 Vest Michigan Street l

Indianapolis, Indiana 46205 I-

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