ML20084R290
| ML20084R290 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 05/17/1984 |
| From: | Swartz E COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| 8665N, NUDOCS 8405220279 | |
| Download: ML20084R290 (4) | |
Text
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[~N ' Commonwealth Edison
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) one First Nation 21 Plaza, Chic'go. Illinois
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O Addrass R; ply 13: Post Offica Box 767
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Chicago, Illinois 60690 May 17, 1984 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Conmission Washington, DC 20555
Subject:
Braidwood Station Units 1 and 2 Site Drainage NRC Docket Nos. 50-456/457 Reference (a):
T. R. Tramm letter to H. R. Denton dated February 22, 1984
Dear Mr. Denton:
Reference (a) provided information concerning the effects of local intense precipitation at Braidwood Station and discussed the use of reinforced concrete curbs and administrative controls at various entrances.
The Enclosure to this letter provides a tabulation of accesses to safety-related buildings that are at, or below elevation 601.35 ft. MSL (reference elevation 401.35 ft.).
In supplement to Reference (a), this information should allow for closure of Confirmatory Issue-A(2) in the Braidwood SER.
Our FSAR will be amended to include the information contained in the Enclosure to this letter as appropriate.
Please address any questions that you or your staff may have concerning this matter to this office.
One signed original and fifteen copies of this letter with Enclosure are provided for your use.
,7 Very truly yours, W 7
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E.DoIglasSwar Nuclear Licensing Administrator cc:
J. G. Keppler - RIII RIII Inspector - Braidwood f\\
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BRAIDWOOD STATION t.
f TABULATION OF ACCESSES TO SAFETY-RELATED BUILDINGS f.
AT OR BELOW ELEVATION 601.35 FT MSL 1
(REFERENCE EL. 401.35 FT)
. NO.
LOCATION FLOOD PROTECTION DETAIL i
l 1
Entrance at El. 401'-0" to Concrete pad to El. 402'-0" Unit 1 Safety Valve Room at Azimuth 216 I
2 Entrance at El. 401'-0" to Concrete pad to El. 402'-0" j
Unit 1 Safegy Valve Room.at Azimuth 327 1
I 3
Entrance at El. 401'-0" to Concrete pad to El. 402'-0" 1
Unit 2 Safegy Valve Room at l-Azimuth 324 j.
Entrance at El. 401'-0" to Concrete pad to El. 402'-0" 4
Unit 2 Safety Valve Room at l
Azimuth 213 I
5 Manhole entrance to Unit 1 Concrete curb raising top i
Refueling Water Pipe Tunnelt of shaft to El. 402'-8" I
top of shaft El. 401'-0".
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6 Manhole entrance to Unit 2 concrete curb raising top of j
Refueling Water Pipe Tunnel; shaft to El. 402'-8"
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top of shaft El. 401'-0".
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7 Access at El. 401'-0" to Concrete pad to El. 402'-0"
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j Heat Exchanger area in Fuel Handling Building Area 2.
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8 Access to Auxiliary Building C9ncrete pad to El. 402'-0" l
from Fuel Handling Building at El. 401'-0" along Y-row 5
near columns 15 and 21.
r 9
Entrance at El. 398'-0" to
' Concrete pad to El. 402'-0" i
Radwaste Tunnel (at Transfer Pit) from Radwaste/ Service l
Building.
10 Entrance to Auxiliary Building Watertight door i
diesel oil storage Room 1A at i'
El. 381'-6" along L-row' f rom l
Turbine Building Unit.l.
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BRAIDWOOD STATION NO.
LOCATION FLOOD PROTECTION DETAIL 11 Entrance to Auxiliary Building Watertight door diesel oil storage Room 1B at El. 381'-6" along L-row from Turbine Building Unit 1 12 Entrance to Auxiliary Building Watertight door diesel oil storage Room 2A at El. 381'-6" along L-row from Turbine Building Unit 1.
13 Entrance to Auxiliary Building Watertight door diesel oil storage Room 2B at El. 381'-6" along L-row from Turbine Building Unit 2.
14 Entrance to Auxiliary Building None - Rolling steel door diesel generator room #1 at El. 401'-0" along L-row from Turbine Building Unit 1 15 Entrance to Adxiliary Building None - Hollow metal door
- diesel generator room #1 at El. 401'-0" along L-row from Turbine Building Unit 1 16 Entrance to Auxiliaty Building None - Rolling steel door diesel generator room #2 at El. 401'-0" along L-row from Turbine Building Unit 1 17 Entrance to Auxiliary Building None - Hollow metal door
- diesel generator room #2 at El. 401'-0" along L-row from Turbine Building Unit 1 18 Entrance to Auxiliary Building None - Pair hollow metal doors
- at El. 401'-0" along L-row from Turbine Building Unit 1 19 Entrance to Auxiliary Building None - Pair hollow metal doors
- at El. 401'-0" along L-row from Turbine Building Unit 2 20 Entrance to Auxiliary Building None --Rolling steel door 4
diesel generator room #2 at El. 401'-0" along L-row from Turbine Building Unit 2 2
o BRAIDWOOD STATION NA LOCATION FLOOD PROTECTION DETAIL 21 Entrance to Auxiliary Building None - Hollow metal door
- diesel generator room #2 at El. 401'-0" along L-row from Turbine Building Unit 2 22 Entrance to Auxiliary Building None - Rolling steel door diesel generator room #1 at El. 401'-0" along L-row from Turbine Building Unit 2 23 Entrance to Auxiliary Building None - Hollow metal door
- diesel generator room #1 at El. 401'-0" along L-row from Turbine Building Unit 2
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3 ontrolled door (s).
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