ML19262A767

Forwards Proposed Revision 2 to Reg Guide 1.97, Instrumentation for Light Water Cooled Nuclear Power Plants to Assess Plant & Environs Conditions During & Following Accident. Requests Comment

ML19262A767
Person / Time
Site:	North Anna
Issue date:	11/23/1979
From:	Varga S Office of Nuclear Reactor Regulation
To:	Proffitt W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
References
RTR-REGGD-01.097, RTR-REGGD-1.097 NUDOCS 7912110010
Download: ML19262A767 (4)

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o UNITED STATES

[ j 3. f' j NUCLEAR REGULATORY COMMISSION N V"b c

WASHINGTON. D. C. 20555

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NOV,... 73 a

g%..... f Docket No.

50-339 Mr. W. L. Prof fitt Senior Vice President Power Operations Virginia Electric and Powr Company F. O. Box 26666 Richmond, Virginia 23261

SUBJECT:

PROPOSED REVISION 2 TO REGULATORY GUIDE 1.97 "INSTRUXENTATION FOR LIGHT-WATER-COOLED NUCLEAR POWER PLANTS TO ASSESS PLANT AND ENVIRONS CONDITIONS DURING AND FOLLOWING AN ACCIDENT" The Regulatory staff is revising Regulatory Guide 1.97 to provide more specific guidance than that contained in the guide now being used. A draft of proposed revision 2 of this guide is enclosed (Enclosure 1). The Advisory Comittee on Reactor Safeguards has reviewed proposed Revision 2 of the guide and has agreed to its issuance for coment. is based on the results of Task Action Plan A-34, ""strumen-tation for Monitoring Radiation and Process Variables During Iccident" which was initiated in June 1977 to develop more specific guidance concerning implementation of Regulatory Guide 1.97.

A major addition to the current Regulatory Guide 1.97 is the identification of specific parameters to De measured, the range of the measurements and design criteria for the instruments.

The enclosed draft guide also incorporates the applicable reccmmendations in NUREG-0578 "TMI-2 Lessons Learned Task Force Status Report and Short-Term Recomendations."

The proposed Revision 2 of this guide will have a significant impact on the design of clants such as yours that are currently under review for an operating license. Therefore, we are requesting early coments on proposed Revision 2 from applicants for these plants. We have arranged meetings in Bethesda, Maryland to discuss these ccaments. We will meet with nine applicants for pressurize.c water reactors on December 13, 1979 and with five applicants fcr boiling water reactors on December 14, 1979.

We request that you attend the meeting as indicated in the enclosed meeting notice (Enclosure 2) to discuss your coments on the feasibility of designing and installing instruments meeting the requirements of proposed Revisicn 2 1529 438

Mr. W. L. Prof fitt to Regulatory Guide 1.97 in your plant. An advance copy of major ccrrents and the associated rationale should be given to V. Senaroya, Chief, Auxiliary Systens Branch, DSS, NRC prior to the meeting.

If there are any questions regarding the neetirig, call L. L.

r.i r ner '301) 492-8344.

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arga, cting Assistant Director fc. Light ', ater Reactors Division of Project Managerer.t Enclosures :

1.

Draft of Proposed Revision 2 to Regulatory Guide 1.97 2.

Meeting Notice cc w/Encls: See next page 1529

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Mr. W. L. Proffitt cc: Mr. Anthony Gamb6radella C1 arence T. Ki sps, Jr., is..

Office of the Attorney General 1700 Pennsylvania Aver u.,

11 South 12th Street - Room 308 Washington, D. C.

2Cau Richmond, Virginia 232 19 Ca rroll J. Sa vage, Esq.

Richard M. Foster, Esq.

1700 Pennsylvania Avenue, '.....

211 Str;bling Avenue Washington, D. C.

200:5 Charlottesville, Virginia 22903 Mr. James C. Dunstan Michael W. Maupin, Esq.

State Corporation Conaission Hunton, Williams, Gay & Gibson Comonwalth of Virginia P. O. Box 1535 Blandon Building Richmond, Vi rginia 23212 Richmond, Virginia 23209 Mrs. June Allen Alan S. Rosenthal, Esc.

412 Owens Drive Atomic Safety ana Licens:ng icpeal Board Hunt sville, Alabama 35801 U.S. f,uclear Regulatory Ccm.issicn Washington, D. C.

2:555 ft. James Torson 501 Leroy Michael C. Fa rrar, Esq.

Socorro, fiew Mexico 87801 Atcmic Safety and Licensing Appeal Soard U.S. Nuclear Regulatory Commission Mrs. Margaret Dietrich Washingten, D. C.

20555 Route 2, Box 568 Gordonsville, Virginia 22942 Dr. John H. Buck Atcmic Safety and Licensing repeal Ecarc Willi an H. Rcdgers, Jr., Esq.

U.S. fiuclear Regulatcry Camission Georgetown University Law Center Washington, D. C.

2C555 600 f;ew Jersey Avenue, N.W.

Washington, D. C.

20001 Atomic Safety and Licensing Ecarc Panel U.S. Nuclear Regulatory Corr.is_sicn Mr. Peter S. Hepp Washington, C. C.

20555 Executive Vice President Sun Shipping & Dry Cock Company Mr. Michael S. Ki cd P. O. Box 540 U.S. i;uclear Regulatory Comissicn Chester, Pennsylvania 19013 P. O. Box 125 Spotsivania, Virginia 22553 Mr. R. B. Br iggs Associate Director Dr. Paul W. Purdom 110 Evans Lane Cepartment of Civil Engineering Oak Ridge, Tennessee 37830 Drexel Unive,rsity Philadel phia, Pennsyl vani a 19104 1529 340

Mr. W. L. Proffitt cc:

Dr. Lawrence R. Cuarles Apartment t;o. 51 Kend a l-a t-Longwced Kennett Square, Pennsylvania 19 58 Mr. Irwin B. Kroot Citizens Energy Forum P. O. Box 138 McLean, 'li rginia 22101 James B. Dougherty, Esq.

Potomac Alliance 14 i6 S Street, i;.w.

Washington, D. C.

20009 1529 34I

Drafc 1 October 15, 1979 PROPOSED REVISION 2 TO REGULATORY GUIDE 1.97 INSTRUMENTATION FOR LIGHT-WATER-COOLED NUCLEAR POWER PLANTS TO ASSESS PLANT AND ENVIRONS CONDITIONS DURING AND FOLLOWING AN ACCIDENT A.

INTRODUCTION Criterion 13, " Instrumentation and Control," of Appendix A, " General Design Criteria for Nuclear Power Plants," to 10 CFR Part 50, " Licensing of Production and Utilization Facilities," includes a requirement that instrumentation be provided to monitor variables and systems for accident conditions as appropriate to ensure adequate safety.

Criterion 19, " Control Room," of Appendix A to 10 CFR Part 50 includes a requirer.. ant that a control room be provided from which actions can be taken to maintain the nuclear power unit in a safe condition under accident conditions, including loss-of-coolant accidents and that equipment at appropriate locations outside the control room be provided with a design capability for prompt hot shutdown of the reactor including necessary instrumentation.

Criterion 64, " Monitoring Radioactivity Reitsses," of Aopendix A to 10 CFR Part 50 includes a requirement that means be provided for monitoring the reactor containment atmosphere, spaces containing components for recirculation of loss-of-coolant accident fluid, effluent discharge paths, and the plant environs for radioactivity that may ba, released from postulated accidents.

ThisguidedescribesamethodacceptabletotheNRCstilffforccmplying wi h the Commission's regulations t t

variables and systems curing and fo DUPLICATE DOCUMENT 1529 34 2 nuclear power plant.

Entire document previously entered into system under:

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No. of pages:

October 15, 1979 Value/ Impact Statement of Proposed Revision 2 to Regulatory Guide 1.97, " Instrumentation In Light-Water-Cooled Nuclear Power Plants To Assess Plant and Environs Conditions During and Following an Accident" I.

The Procosed Action A.

Description The applicant (licensee) of a nuclear power plant is required by the Commission's regulations to provide instrumentation to (1) monitor vari-ables and systems for accident conditions as appropriate to ensure adequate safety, and (2) monitor the reactor containment atmosphere, spaces contain-ing components for recirculation of loss-of-coolant accident fluid, effluent discharge paths, and the plant environs for radioactivity that may be released from postulated accidents.

This revision to Regulatory Guide 1.97 proposes to improve the guidance for plant and environs tronitoring during and follow-ing an accident.

B.

Need Regulatory Guide 1.97 was issued as an effective guide in August 1977.

At the time the guide was issued it was recognized that more specific guid-ance than that contained in the guide would be required. However, the diffi-culty in developing the guide to the point where it could be initially issued was evidence that experience in using the guide as it then existed was essential before further developmen't of the guide would be meaningful.

At the time Regulatory Gui tive guide (August 1977), the s DUPLICATE DOCUMENT ments for Monitoring Radiation

'. tire accument previously entered into system under:

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ENCLOSURE 2

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'o, UNITED STATES 5 T,

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NUCLEAR REGULATORY COMMISSIOf.

-E WASMNGTON. D. C. 20555

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e NOV 19 1979' mm m

Docket Nos. 50-311, 50-339, 50-275, D

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50-327, 50-3E9, 50-364,

.f3 50-395, 50-351, 50-390 ftEMORANDUM FOR:

John F. Stolz, Chief, Light Water Reat crs Eran:n No. 1, DPM FROM:

Lester L. Kintner, Project Manager, Ligr.: Water Reactors Branch NC. 1, DPM

SUBJECT:

FORTHCOMING MEETING WITH APPLICANTS FC:, 2?E:.1 :N7 LICENSES FOR SALEM 2, NORTH ANNA 2, DIABLO C;U O* 1. 5EX OYAH ',

MCGUIRE 1, FARLEY 2, S'#.MER 1, SAN :NOFFE 2. a TTS SAi i DATE & TIME:

Thursday, December 13,1979 at 9:00 A" LOCATION:

P-500, Phillips Building, 7920 Norfolk Avenue, Eethesda, 'taryland PURPOSE:

Discuss draft Revision 2 to Regulatory Guide 1.97, " Instrumentation for Lignt-Water-Cooled Nuclear Power 01 ants to assess Piant" and Environs Conditions During and Followin; an Accicent."

PARTICIPANTS:

NRC V. Benaroya B. Buckley J. Buchanan H. Siiver E. Wenzinger R. Birkel A. Hintze L. Kintner S. Varga D. Tibbitts J. Stolz H. Rood C. 5 table A. Dromerick Acolicants Public Service Electric and Gas Co pany Virginia Electric and Pcwer Company

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Pacific Gas and Electric Company Tennessee Valley Authority

,,A Duke Pcwer Comoany V

Alabama Power Ccm' par.y b

South Carolina Electric and Gas Cer:ary Southern California Edison and Sar. Diego Gas and Electric Company

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