ML17249A222
| ML17249A222 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 09/21/1979 |
| From: | White L ROCHESTER GAS & ELECTRIC CORP. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NUDOCS 7910300501 | |
| Download: ML17249A222 (4) | |
Text
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89 EAST AVENUE, ROCHESTER, N.Y. 14649 LEON D. WHITE~ JR; VICC PRCSIDCMT TCLCPHONC ARCA COOC TIC 546.2700 September 21, 1979 Mr. Boyce H. Grier, Director U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region I 631 Park Avenue King of Prussi.a, Pennsylvania 19406
Subject:
IE Bulletin 79-18, Audibility Problems Encountered on Evacuation of Personnel from High-noise Areas R. E. Ginna Nuclear Power Plant, Unit 41 Docket No. 50-244
Dear Mr. Grier:
In response to Inspection and Enforcement Bulletin 79-18 on evacuation of personnel from high noise areas the following information is provided.
The potential audibility problem encountered on evacuation of personnel from high-noise areas at Ginna Station was identified and'ro-vided for in the past.
At present the high noise areas have, in addition to the PA system, red warning lights with signs directing personnel to evacuate the plant when the red warning light is on.
These high noise areas are:
1.
Charging pump room 2.
1A Diesel Generator 3.
1B Diesel Generator 4.
Oil Storage Room 5.
Main Feedwater Pumps Area 6.
Motor Control Center lA 7.
Iodine Monitor Room 8.
Rod Drive MG set area 9.
Intermediate Building Sub-basement area 10.
Fan Coolers area ll.
Gas 6 Particulate Monitor Room 12.
Chiller Compressor area 13.
Main Steam Header area 7 91636Q 5 C>y
ROCHESTER GAS AND ELECTRIC DATE September 21, 1979 To Mr. Boyce H. Qrier, Director SHEET NO.
2 In response to IE Bulletin 79-18, we have identified additional areas which can have high noise levels and are not provided with addi-tional warning systems; they are:
a.
AVT Building - upper floor near Control Panel.
b.
Standby Auxiliary Feedwater Pump Room.
c.
Residual Heat Removal (RHR) Pump Area, Auxiliary Building
-'ub-basement, during system operation.
d.
- 'RHR Heat Exchanger Room, during system operation.
e.
Intermediate Building Top Floor Controll d area side, near the main exhaust fans.
Items a) and b) can be augmented by the addition of red warning lights and signs.
To perform this, warning lights similar to those presently provided in other areas willhave to be purchased, and conduits and wires run to the areas.
These can be implemented through the station Minor Modifications control program.
Because of the long lead time for the warn-ing lights and the installation time for the conduits and wires, the implemen-tation of items a) and b) should be completed by the end of the 1980 Refueling Shutdown.
Items c) and d) are locked high radiation areas.
Entries into these areas for periodic testing are very brief and involve several individuals with at least one individual not in the area itself.
Maintenance work there would be performed when high noise levels due to system operation were absent, or with the plant temperatures and pressures less than operating conditions, when, the need for site evacuation would be highly unlikely.
Item e) willbe provided for by placing an additional PA system in this area; implementation should be completed by November 21, 1979.
During the month of October 1979 there willbe a series of plant evacuation drills performed, at which time additional evaluation of these areas willbe performed.
Very truly yours, L. D. Whi e, Jr.
xc; U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Division of Reactor Operations Inspection Washington, D. C.
20555