ML19254A774
| ML19254A774 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 08/06/1979 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Koester G KANSAS GAS & ELECTRIC CO. |
| References | |
| NUDOCS 7908160121 | |
| Download: ML19254A774 (1) | |
Text
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011 RYAN PLAZA DRIVE, SUITE 1000 0
0 AR t INGTON, T E X AS 70012 August 6, 1979 In Reply Refer To:
RIV Docket No.
ST'I 30-482/IE Bulletin No. 79-18 Kansas Gas & Electric Co.
Attn:
Mr. Glenn L. Koester Vice President-Operations Post Office Box 208 Wichita, Kansas 67201 Gentlemen:
The enclosed IE Bulletin 79-18 is forwarded to you for information. No written response is required.
If you desire additional information regarding this matter, please contact this office.
Sincerely,
$2Y r1 V. Seyfr Director
Enclosure:
1.
List of IE Bulletins issued in Last 6 Months cc: w/ enclosures Messrs.
Nicholas A. Petrick, SNUPPS D. T. McPhee, Kansas City Power and Light Company Gerald Charnoff, Shaw, Pittman, Potts & Trowbridge E. W. Creel, Kansas Gas and Electric Company 7008160{M
UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 IE Bulletin No. 79-18 Di. te : August 6, 1979 Page 1 of 2 AUDIBIL117 PROBLEMS ENCOUNTERED ON EVACUATION OF PERSONNEL FROM HIGH-NOISE AREAS Description of Circumstances:
In January 1979, a number of licensee personnel were engaged in routine activities in the auxiliary building at the Florida Power 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 radio-active noble gases was detected by building monitors within the auxiliary building at concentrations which caused the licensee to initiate the facility emergency plan auxili.ary building evacuation procedure.
The facility Emer-gency Officer (Shift Supervisor) assessed the monitor readings and initiated an auxiliary building evacuation. The evacuation announcement, made over the 1icensee's PA system, was not heard by the personnel working in the high-noise Licensee personnel did evacuate the auxiliary building upon observing area.
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 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 followup inspection of this occurrence, Florida Power Corporation initiated an assessment of this situation and performed an engineering evaluation and identified several plant areas where the annun-ciator system needed audibility improvement. The licensee has installed a new auxiliary building evacuation tone signal and may add visual alarm indi-cators in areas of very high-noise.
Action to be Taken by the Licensees:
For all power reactor facilities with an operating license:
1.
Determine whether current alarm systems and evacuation announcement systems are clearly audible or visible throughout all plant areas with emphasis on high-noise areas.
De made with the maximum anticipated DUPLICATE DOCUMENT Entire document previously er ered into system under:
nNo 7 W'3CJ C 9G No. of pages:
9