ML19345H381
| ML19345H381 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 05/11/1981 |
| From: | Crutchfield D Office of Nuclear Reactor Regulation |
| To: | Counsil W NORTHEAST NUCLEAR ENERGY CO. |
| Shared Package | |
| ML19345H382 | List: |
| References | |
| TASK-05-10.B, TASK-05-11.B, TASK-07-03, TASK-5-10.B, TASK-7-3, TASK-RR LSO5-81-05-014, LSO5-81-5-14, NUDOCS 8105200225 | |
| Download: ML19345H381 (3) | |
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Docket :io. 50-245 LS05-81-05-014 Mr. W. G. Counsil, Vice President 5 MAY 19 IS81 m d Nuclear Engineering and Operations
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Dear Mr. Counsil:
TJEJECT: i11LLST0ilE 1 - SEP TCPICS 7-10.B. RHR RELIABILITY, V-11.3, RHR INTERLCCK REQUIREMENTS AND VII-3, SYSTEMS REQUIRED FOR SAFE SIIUTDOWN (SEP SAFE SHUTD0nii SYSTEMS REPGRT)
Enclosed is cur final evaluation of safe shutdewn systems for Millstone 1, incorporating coments of your letter dated April 6,1981. Changes to the report are marked in the margin.
Ne now consider the systems review under these topics to be complete.
This evaluation will be a basi: input to the integrated safety assessment for your facility. This report may be revised in the future i' your facil-ity design is changed or if NRC criteria relating to this topic are modified before the integrated asses
- ent is conplete.
x During tne integrated assessnent we will consider treans to ensure that pro-cedures essential to SEP topic evaluations are appropriately maintained so that future procedural modifications will not adversely affect plant safety and the conclusions of our SEP evaluations. We are assessing whether sect-ion 6.3 of the Techntcal Specifications could be u4pted for cur purposes, whether key procedures should be subject to offsite review cocmittee over-sight or other processes.
,',le fully agree that specific revisions of pro-cedures should not be directly incorporatea into the Technical Specificat-7 icns.
Staff positicns being carriec into the integrated assesscent are:
1.
The licansee mst develop plant operating / emergency proceuures for conducting a plant shutdown and cooldown using only the systems and equipment identified in Section 4.0 of the SEP Shutdown Systems Report.
E.
The licensec mst develop plant cperating/ emergency procedures for conducting a plant cooldown to cold shutdown conditions from outside the control roon..
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Considering air (or nitrogen) leaks from the electropneumatic Automatic Pressure Relief valve actuation systems, the licensee must demonstrate that thcse valves will be available for long term core cooling or must provide the means to assure their availability for this function.
Operator actions outside the control room to assure long term availabil-ity of the valves would be considered acceptable if suitably justified.
Sincerely, Dennis :4. Crutchfield, Chief Operating Reactors Branch #5 Division of Licensing
Enclosure:
As stated cc w/ enclosure:
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MAY l'1 1981 b!b bl- $ h Mr. W. G. Counsil, Vice President Nuclear Engineering, and Operations Northeast Nuclear Energy Cogany Post Office Box 270 Hartford, Connecticut 06101
Dear Mr. Counsil:
SUBJECT:
MILLSTONE 1 - SEP TCPICS V-10.J. RHR RELIABILITY, V-11.B. RHR INTERLOCX REQUIREMENTS AND VII-3, SYSTEMS REQUIRED FOR SAFE SHUTDOWN (SEP SAFE SHUTDOWN SYSTEMS REPORT)
Enclosed is our final evaluation of safe shutdown systems for Millstona 1, incorporating coments of your letter dated April 6,1981. Changes to the.
report are marked in the margin.
We now consider the systems review under these topics to be complete.
This evaluation will be a basic input to the integrated safety assessment for your facility. This report may be revised in the future if your facil-ity design is changed or if NRC criteria relating to this topic are modified before the integrated assessment is coglete.
i!
Ouring the integrated assessment we will consider means to ensure that pro-cedures essential to SEP topic evaluations are appropriately maintained so that future procedural modifications will not adversely affect plant safety and the conclusions of our SEP evaluations. We are assessing whether sect-ion 6.8 of the Technical Specifications could be adapted for our purposes, whether key ;rocedures should be wbject te offsite review comittee over-sight or other processes. We fully agree that specific revisions of pro-l cedures should not be directly incorporated into the Technical Specificat-l ions.
l Staff positions being carried into the integrated assessment are:
1.
The licensee ::ust develop plant operating / emergency procedures for conducting a phnt shutdown and cooldown using only the systems and equipment identified in Section 4.0 of the SEP Shutdcwn Systems Report.
l 2.
The licensee must develop plant operating / emergency procedures for l
concucting a plant cooldown to cold shutdcwn conditions from outside the control room.
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2 3.
Constdering air (or nitrogen) leaks from the electropneumatic Automatic
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Pressure Relief valve actuation systems, the licensee must demonstrate that these valves will be available for long term core cooling or must provide the means to assure their availability for this function.
Operator actions outside the control room to assure long term availabil-ity of the valves would be considered acceptable if suitably justified.
Sincerely,
' M,
/
Dennis M. Crutchrield,'Cdlef Operating Reactors Sranch #5 Division of Licensing
Enclosure:
As stated 4
I ce w/ enclosure:
See next page t
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y Mr. W. G. Counsil Cc William H. Cuddy, Esquire Connecticut Energy Agency Day, Berry & Mcward ATTN: Assistant Director Counselors at Law Research and Policy One Constitution Pla:a Development Hartford, Connecticut 06103 Department of Planning and Energy Policy Natural Rescurces Defense Council 20 Grand Street 91715th Street, N. W.
Hartfort, Connecticut 06106 Washing:cn, D. C.
20005 Director, Criteria and Standards Division Northeast Nuclear Energy Co@any Office of Radiation Programs ATTN: Sucerintendent (ANR-460)
Millstene Plant U. S. Envircnmental Protection P. O. Sex 123 Agency Waterf ord, Cennecticut 06335 Washington, D. C.
20460 Mr. J ames R. Hic elwright U. S. Environmental Protection Northeast Utilities Service Cogany Agency P. O. Sex 270 Regien ! Office Hartford, Connecticut 06101 ATTN: EIS COORDINATOR JFK Federal Building Resident Inspector Scston, Massachusetts 02203 c/o U. S. NRC P. O. Box Drawer KK Niantic, Connecticut 06357 Waterferd Puclic Library Repe Ferry Road, Route 156 Waterf ord, Connecticut 06335 First Selectman of tne Town of Waterford Hall of Reccrds 200 Scsten Post Road Waterferd, Ccnnecticut 06255 Jchn F. Opeka Syste s Su;:erintendent Ncrtheas: U:?lities Service Comany P. O. Sex 270 Hartford, Cennecticut 06101 l
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