ML20133M211

Submits Schedule for S&W to Complete Calculations.Ofc of Policy Evaluation Should Prepare Paper Re Impact on Each Region of Shutdown,Degree of Relaxation from Stds Allowable & If Mods Can Be Done Over Extended Period by 790415

ML20133M211
Person / Time
Site:	Beaver Valley, Surry, Maine Yankee, FitzPatrick, 05000000
Issue date:	03/14/1979
From:	Ahearne J NRC COMMISSION (OCM)
To:	Gilinsky, Hendrie, Kennedy NRC COMMISSION (OCM)
Shared Package
ML20133M133	List: IA-85-301, Forwards Draft Temporary Instruction Providing Guidance for Inspecting & Evaluating Licensee & CP Holder Responses to IE Bulletin 79-14, Seismic Analysis for As-Built.... Comments Requested by 790723.Supporting Documentation Encl ML20133M130 ML20133M162 ML20133M174 ML20133M190 ML20133M211 ML20133M223 ML20133M232 ML20133M247 ML20133M261 ML20133M293 ML20133M428 ML20133M451 ML20133M483 ML20133M505 ML20133M523 ML20133M555 ML20133M575 ML20133M607 ML20133M621 ML20133M635 ML20133M646 ML20133M662 ML20133M685 ML20133M699 ML20133M722 ML20133M737 ML20133M757 ML20133M771 ML20133M786 ML20133M842 ML20133M853 ML20133M891 ML20133M908 ML20133M919 ML20133M959 ML20133M996 ML20133N121 ML20133N130 ML20133N148 ML20133N166 ML20133N203 ML20133N381 ML20133N390 ML20133N407 ML20133N418 ML20133N421 ML20133N434 ML20133N440
References
FOIA-85-301 NUDOCS 8508130044
Download: ML20133M211 (2)

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9 64 MEMORANDUM FOR: Chairman Hendrie Commissioner Gilinsky Comissioner Kennedy Comissioner Bradford FROM:

John Ahearne (h

SUBJECT:

SHUTDOWN OF NUCLEAR PLANTS I continue to believe the action we have just taken to be prudent.

However, I believe we should now prepare to be ready to address what further action should be taken once the Stone and Webster calculations are completed. According to Harold Denton, the schedule for Stone and Webster to have completed their calculations is the following:

Beaver Valley - completed.

'Fitzpatrick - March 27 Maine Yankee - April 2 ,

- Surry - April 10 In order to be ready I believe we should ask OPE to prepare the following paper:

1. What will be the impact on each region of this shutdown? The analysis should estimate' the length of time the plants will be shut down to make the fix, if we require the plants be brought back to the original specification; the cost of doing that, both to repair and to purchase replacement power; the impact upon reserve margins in each region; and the increased use of oil. To the extent possible, this impact estimate should include from where the oil would come. In order to prepare this section, OPE should work with NRR and the Economic Regulatory Adminis-tration of D0E.

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2. What degree of relaxation from our standards might be allowable, based upon either on NRR's best judgment or previous compromises?

This should be by particular plant, based upon the likelihood of earth-quakes in the region, and should also include an assessment of con-servatism embodied in the new code being used by Stone and Webster (which apparently Jioes not incorp5rati the time his' tory but merely takes peak values of all shocks).

3. Based upon the Stone and Webster calculations and the answer to No. 2, can modifications be done over an extended period of time, rather-than all at once? For example, would it be reasonable to do most during routine maintenance or reloads and for some of. the more imediately req' ired, is it possible to do them during non-peak times? For example, over weekends?

4.- 'Given the current regulations and Stone and Webster calculations, what legal flexibility does the Comission have to allow either continued operation or operation during peak periods (for example, can we require the plant to shut down during the Spring and the Fall but remain running during the sumer and winter)? In developing this section, OPE should work with OGC and OELD.

5. In light of the answers to questions 4, what amount of flexibility can be used by the Comission in balancing in the public interest increased demand on oil and increased costs of power versus requirements for the Comission to assure public health and safety?

I believe this paper should be ready by April 15, so that the Comission can adequately address what are the next steps to be taken after Stone and Webster completes its calculations and NRR has seen the resul ts. I would not be surprised if our order is chm 1enged, for example, by ERA. I believe our actions to date are appropriate, but also believe we should take the above steps in order carry out our responsibilities, cc: OGC OPE- ^

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