ML19242D107
| ML19242D107 | |
| Person / Time | |
|---|---|
| Issue date: | 07/06/1979 |
| From: | Jordan E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | Deyoung R, Sniezek J, Vassalle D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE), Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19242D094 | List: |
| References | |
| NUDOCS 7908140509 | |
| Download: ML19242D107 (4) | |
Text
{{#Wiki_filter:. f[Ona f y' u UNITED STATES h, fg y 3Q g NUCLEAR REGULATORY COMMISSION wAsumcTou, o. c.2csss gg Y[,,, e Jut. 6 W9 J. H. Sniezek, Director, DFFMSI, IE MEMORANDUM FOR: D. Vassallo;' Acting Dtrector; 'DPM;"NRR R. C. DeYoung, Director, DSE, NRR R. J. Mattson, Director, DSS, NRR D. F. Ross, Deputy Director, DPM, NRR D. G. Eisenhut, Acting Director, DOR, NRR B. K. Grimes, Assistant Director, DOR, NRR R. H. Vollmer, Assistant Director, DOR, NRR R. A. Hartfield, Chief, L0E3, OMPA D. Thompson, X005, IE H. D. Thornburg, Director, DRCI, IE B. H. Grier, Director, Region I J. P. O'Reilly, Director, Region II J. G. Keppler, Director, Region III K. V. Seyfrit, Director, Reg %n IV R. H. Engelken, Director, Region V FROM: E. L. Jordan, Assistant Director for Technical Programs, Division of Reactor Operations Inspection, Office of Inspection and Enforcement
SUBJECT:
DRAFT BULLETIN - AUDIBILITY PROBLEMS ENCOUNTERED ON EVACUATION OF PERSONNEL FROM HIGH NOISE AREAS The enclosed draft IE Bulletic is transmitted for your review and cornent. Coments received by COB ten calendar days after the above issue date will be considered in the final version. .}f ./6 rdan, Assistant Director for c. Ted.ical Programs Divi on of Reactor Operations Inspection Office of Inspection and Enforcement j, -
Enclosure:
Draft Bulletin No. 79-cc: N. C. Moseley, ROI:IE CONTACT-CJ J.'DeBevec. IE f ~c r e ~ 'vj J a9-281SO u 7908140h h
i UNITED STATES NUCLEAR REGULATORY COMMISSION 0FFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C. 20555 Draft IE Bulletin No. 79-i AUDIBILITY PROBLEMS ENCOUNTERED ON EVACUATION OF PERSONNEL FROM HIGH NOISE 1 j AREAS Description of Circumstances: 4 } On January 4 and 22,1979, 6 and 8 licensee personnel, respectively, were j i engaged in routine activities in the auxiliary building at the Florida Power li Corporation, Crystal River Unit 3 nuclear plant. While these individuals were j working in the auxiliary building, in a high-noise (fan) area, an unplanned release of radioactive noble gases was detected by building monitors within the auxiliary building at concentrations which initiated the facility emergency plan auxiliary building evacuation procedure. The facility Emergency Officer (Shift Supervisor) assessed the monitor readings and initiated an auxiliary -~ building evacuatien. The evacuation announcement, made over the licensee's PA i system, was not heard by the personnel working in the high-noise area. Licens ee personnel did evacuate the auxiliary building upon observing that other persorc.el had left, and after calling the control room to inquire if an evacuation had b1uen initiated. During these occurrences, licensee personnel were not exposed to quantities of radionuclides above regulatory guidance. However, the potential existed for inadvertent unnecessary exposure of individuals to radioactive' materials. Subsequent to the NRC inspection of tnis occurrence, Florida Power Corporatie-initiated an assessment of this situation and performed an engineering evaluation 4 -a. r . -j --- - -,_w, _m egg
I Draft IE Bulletin No. 79-July 1979 ~ . Page 2 of 3 and identified several plant areas where the annunciator system needed audibility improvement. Florida Power Corporation has installed a new auxiliary building evacuation tone signal and may add visual alarm indicators in areas of very high-noise. Action to be Taken by the Licensees: i For all pcwer reactor facilities with an operating license: 1. Determine whether current alarm systems and evacuation announcement systems are clearly audib.le throughout all plant areas with emphasis on high-noise areas. 2. Determine what corrective action is necessary to assure that areas identified in (1) above as inaudible areas, will receive adequate audible / visual evacuation signals. 3. Submit within 45 days of the receipt of this Bulletin, a written report of the findings of your evaluation on item (1), and delineate proposed correc-tive actions per Itemil, 4. All corrective actions specified for areas where plant evacuation alarms and annunciator systems reo.uire improvement, shall be completed within 120 days of the receipt of this Bulletin. l T* J a... y m.. _ _ - r,...-xr.m, - -,,,um.. m m _ m-,y,..m.,7. p q,,,,mm
C - af t IE Bulletin No. 79-July , 1979 Page 3 of 3 E'eport should be.sub:nitted to the Directt,r of the appropriate NRC Regicnal Cific': and a copy should be forwarded to the NRC Office of Inspection and Erfororrat, Division of Reactor Operations Inspection, Washington, D.C. 20555. A-Oprol':d by G/ 3, B180225 (R0072); clearance expires 7/31/80. Approval was given under a blanket clearance specifically for identified generic proble:as. O _'~ D L., 0 ,/ j r -
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""%q[o ~ UNii. 3 STATES -{, ,y g NUCLEAR REGULATORY COMMISSION y s. g WASHINGTON. D. C. 20555 C o .,,1 .n f,.: - jg( 6 L979 J. H. Sniezek, Director, DFFltSI., IE MEMORANDUM FOR: D. Vassallo;' Acting Director;~DPM;~NRR R. C. DeYoung, Director, DSE, NRR R. J. Mattson, Director, DSS, NRR D. F. Ross, Deputy Director, DPM, NRR D. G. Eisenhut, Acting Director, DOR, NRR B. K. Grimes, Assistant Director, DOR, NRR R. H. Vollmer, Assistant Director, DOR, NRR R. A. Hartfield, Chief, L0E3, OMPA i D. Thompson, X005, IE H. D. Thornburg, Director, DRCI, IE B. H. Grier, Director, Region I J. P. O'Reilly, Director, Regicn II J. G. Keppler, Director, Region III K. V. Seyfrit, Director, Region IV R. H. Engelken, Director, Region V FROM: E. L. Jordan, Assistant Director for Technical Programs, Division oi Reactor Operations Inspection, Office of Inspection and Enforcement DRAFT BULLETIN - AUDIBILITY PROBLEMS ENCOUNTERED ON SUSJECT: EVACUATION OF PERSONNEL FROM HIGH NOISE AREAS The enclosed draft IE Bulletin is transmitted for your review and connent. Cc;ments receivec by C03 ten calendar days after the above issue date will be considered in the final. version. ph .,4 rdan, Assistant Director for TecF.ical Programs Divi' on of Reactor Operations Inspection Office of Inspcction and Enforcement
Enclosure:
Draft Bulletin No. 79-cc: N. C. Moseley, ROI:IE C0" TACT: C. J. T,e5 eve:, IE $ C ', 49-25180
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I s UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C. 20555 Draft IE Bulletin No. 79-AUDIBILITY PROB 1 EMS ENCOUhTERED ON EVACUATION OF PERSONNEL FROM HIGH NOISE AREAS Description of Circumstances: ei On Janucry 4 ano 22,1979, 6 and 8 licensee personnel, respectively, were l i engaged in routine activities in the auxiliary building at the Florida Power t Corporation, Crystal River Unit 3 nuclear plant. While these individuals were working in the auxiliary building, in a high-noise (fan) area, an unplanned release of radioactive noble gasas was detected by ba lding monitors within l i the auxiliary building at concentrations which initiated the facility emergency plan auxiliary building evacuation procedure. The facility Emergency Officer (Shift Supervisor) assessed the monitor readings and initiated an auxiliary ~building evacuation. The evacuation announc ment, cade ever the licensee's PA system, was not heard by the personnel working in the high-noise area. Licensee personnel did evacuate the auxiliary building upon observing that other personnel had left, and after calling the control room to inquire if an evacuation had been initiated. During these occurrences, licensee personnel were not expcsed to cuantities of radionuclides 2bove regulatory guidance. Mcwe/er, the potential existed for inadvertent unnecessary exposure of individuals to radioactive caterials. Subsecuant to the NRC inspection of this occurrence, Florida Power Corporatier ir.iciated an assessment of this situation and performed ar. engineerins evaluatier 'J buO /
n Draft IE Bulletin No. 79- -July , 1979 Page 2 of 3 and identified several plant areas where the annunciator system needed audibility improvement. Florida Power Corporation has installed a new auxiliary building evacuation tone signal and may add visual alarm indicators in areas of very hi gh-nois e. Action to be Taken by the Licensees: i I i 4 e eFor all pcwer reactor facilities with aa operating license: 1. Determine whether current alann systems and evacuation announcement systems are clearly audible throughout all plant areas with emphasis on high-noise 4 areas. 2. Determine what corrective action is necessary to assure that areas identified in (1) above as inaudible areas, will receive adequate audible / visual evacuation signals. 3. Submit within 45 days of the receipt of this Bulletin, a written report of the findings of your evaluation cri item (1), and delineate proposed correc-tive acticns per Item 2, 4. All corrective actions specified for areas where plant evacuation alarms and annunciator systems require improvement, shall be completed within 120 days of the re:eipt of this Eulletin. () C G .
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Draft IE Bulletin No. 79-July' ,1979 Page 3 of 3 Reports should be subnitted to the Director of the appro >riate NRC Regional Office and a copy should be forwarded to the NRC Office of Inspection and Enforcement, Division of Reactor Operations Inspection, Washington, D.C. 20555. Approved by GAO, B180225 (R0072); clearance expires 7/31/80. Approval was given under a blanket clearance specifically for identified generic problems. O e / r: r, n - rg I..> {J, o}}