ML17053B884
| ML17053B884 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 08/29/1980 |
| From: | Tedesco R Office of Nuclear Reactor Regulation |
| To: | Rhode G NIAGARA MOHAWK POWER CORP. |
| References | |
| NUDOCS 8009090035 | |
| Download: ML17053B884 (6) | |
Text
, Docket No.:
50-410 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 operate 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, in addition to our licensing requirement for a recirculation pump trip to mitigate the short-term consequences of ATWS events, 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.
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RPurple NSIC JYoungblood TIC KKiper Niagara Mohawk Power Corporation PCheck MRushbrook Vice President ASchwencer System Project Management JMiller 300 Erie Boulevard West
'yracuse, New York 13202 DRoss RMattson
Dear Mr. Rhode:
JKnight
SUBJECT:
INTERIM ACTIONS NEEDED FOR/'QNT OPERATION PENDING FINAL RESOLUTION OF ANTICIPATED TRANSIENT
( FAILURE TO SCRAM (ATWS)
(GENERAL
'ELECTRIC BWR)
In December 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 Commission.
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.
8O0909O 085 OFFICE SURNAME DATEf NRC FORM 318 t9 76) NRCM 0240
'0 U.S. GOVERNMENT PRINTING OFFICE: 1979.289 369
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l'Ir. Gerald K. Rhode 1.
An emergency operating procedure should be developed for an ATllS event, including consideration of scram indicators, rod position indicators, average power range flux monitors, (APRth), reactor vessel 1'evel and pressure indicators, relief valve and fsolation valve indicators, and containment temperature, pressure and radiation indicators.
The emergency operating procedure should be sufficiently simple and unambiguous to permit prompt operator recognition of an ATl 1979 289.369
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Niagara mohawk Power Corpora tion ccs:
Eugene B. Thomas, Esq.
- LeBoeuf, Lamb, Leiby
- 8. MacRae 1333 New Hampshire Avenue, N.M.
Suite 1100 Mashington, D.
C.
20036 Anthony Z. Roisman, Esq.
Natural Resources Defense Council 917 15th Street, N. M.
Mashington, D.
C.
20005 Hr. Richard Goldsmith Syracuse University College of Law E. I. Mhite Hall Campus
- Syracuse, New York 13210 T,
K. DeBoer, Director Technological Development Programs New York State Energy Office Swan Street Building Core 1 - 2nd Floor Empire State Plaza
- Albany, New York 12223 Resident Inspector Nine Nile Point Nuclear Power Station P. 0.
Box 126
'Lycoming, New York 13093
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