ML18038A048
| ML18038A048 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 09/03/1985 |
| From: | Mangan C NIAGARA MOHAWK POWER CORP. |
| To: | Butler W Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML18038A049 | List: |
| References | |
| (NMP2L-0484), (NMP2L-484), NUDOCS 8509060154 | |
| Download: ML18038A048 (6) | |
Text
)
,RESULAI INFORMATION OISTRISUTIOAYSTEM (RIOR)
ACCESSION NSR'8509060150 DOC ~ DATE: 85/0'9/03 NOTARIZED:
No DOCKET FACIL:50>>010 Nine Mile Point Nuclear Station, Unit 2i Niagara Moha 05000010 AUTH,NAME AUTHOR AFFILIATION MANGANFC,Y.
Niagara Mohawk Power Corp.
REC IP ~ NAME RECIPIENT AFFILIATION BUTLERgN ~
Licensing Branch 2
SUBJECT:
Notifies that 10 scuppers will be provided in screenwall bldg roof based on. calculation of max roof loading caused by rainfall.All other safety-related roofs can accommodate max roof loading,A/one oversize
- drawing, DISTRIBUTION CODE:
B001D COPIES RECEIYED:LTR ENCL SIZE:
TITLE: Licensing Submittal; PSAR/FSAR Amdts L Related Correspondence'OTES:
RECIPIENT ID CODE/NAME NRR/DL/ADL NRR LB2 LA INTERNAL: ACRS 41 ELD/HDS3 IE/DEPER/EPB 36 NRR ROEFM ~ L NRR/DE/CEB 11 NRR/DE/EQB 13 NRR/DE/MEB 18 NRR/DE/SAB 24 NRR/DHFS/HFEBQO NRR/DHFS/PSRB NRR/DSI/AEB 26 NRR/DSI/CPB 10 NRR/DSI/ICSB 16 NRR/DSI/PSB 19 NRR/DS I/RSB 23 RGN1 EXTERNAL: 24X DMB/DSS (AMDTS)
NRC PDR 02 PNL GRUELzR COPIES LTTR ENCL 1
0 1
0 6
6 1
0 1
1 1
1 1
1 2
2 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 3
1 1
1 1
1 1
RECIPIENT ID CODE/NAME NRR LB2 BC HAUGHEYFM Ol ADM/LFMB IE F ILE IE/DQAYT/QAB21 NRR/DE/AEAB NRR/DE/EHEB NRR/DE/GB 28 NRR/DE/MTEB 17 NRR/DE/SGEB 25 NRR/DHFS/LQB 32 NRR/DL/SSPB NRR/DSI/ASB NRR/DS I/CSB 09 NRR/DSI/METB 12'RR/DSI/RAB22 REG FILE 04 R t 1/D 0 AMI/MI8 BNL(AMDTS ONLY)
LPDR 03 NSIC 05 COPIES LTTR ENCL" 1
0 1
1 0
1 1
1 1
1 0
1 1.
2 2
1 1
1 1
1 1
1 0
1 1
1 1
1 1
1 1
1 1
1 0
1 1
1 1
1 1-=
~.s4.
TOTAL NUMBER OF COPIES REuUIRED:
LTTR 52 ENCL
0, 1
t I
J 0, IL Jl I
p~
h
~ 't
.s s
c g
o h
4 4
e
7 HIIASAIRk,
~ U MQNIAMK NIAGARAMOHAWKPOWER CORPORATION/300 ERIE BOULEVARDWEST, SYRACUSE, N.Y, 13202/TELEPHONE (315) 474-1511 September 3,
1985 (NMP2L 0484)
Mr. Walter Butler, Chief Licensing Branch No.
2 U.S. Nuclear Regulatory Commission Washington, DC 20555
Dear Mr. Butler:
Re:
Nine Mile Point Unit 2 Docket No. 50-410 We have completed our design for the parapet scuppers for Nine Mile Point Unit 2.
The Reactor Building, Screenwell Building, Diesel Generator Building, Standby Gas Treatment Building,,Control Building and Auxiliary Service Building roofs were evaluated for the probable maximum precipitation (rainfall) based upon Hydrometeorological Report Nos.
51 and 52.
The maximum roof loading due to this condition was determined to be 27.1 inches of standing water, which was conservatively calculated to be 145 lbs/ft2.
Based on this calculation, scuppers will be provided in the Screenwell Building roof.
All other safety related roofs can accommodate the maximum roof loading described above.
A typical scupper detail is shown on Drawing EA 14A-7.
The scuppers will be placed at about five inches above the top of the roof.
Ten scuppers will be provided for the Screenwell Building.
The Final Safety Analysis Report will be changed to address these design aspects.
Very truly yours,'.
V. Manga Senior Vice President NLR/rla 0917G xc:
R. A. Gramm, NRC Resident Inspector Project File (2)
PDR':ADOC4 850903, 85O9gj g~ ~
<<~ OSOOO~,O PDR dol s 5 gS lg
4 7
II
~
4 e
C r
C I
7 NIAQARA U MQHAWK NIAGARAMOHAWKPOWER CORPORATION/300 ERIE BOULEVARO WEST, SYRACUSE, N.Y. 13202/TELEPHONE (315) 474-1511 September 3, 1985 (NMP2L 0484)
Mr. Walter Butler, Chief Licensing Branch No.
2 U.S. Nuclear Regulatory Commission Washington, DC 20555
Dear Mr. Butler:
Re:
Nine Mile Point Unit 2 Docket No. 50-410 We have completed our design for the parapet scuppers for Nine Mile Point Unit 2.
The Reactor Building, Screehwell Building, Diesel Generator Building, Standby Gas Treatment Building, Control Building and Auxiliary Service Building roofs were evaluated for the probable maximum precipitation (rainfall) based upon Hydrometeorological Report Nos.
51 and 52.
The maximum roof loading due to this condition was determined to be 27.1 inches of standing water, which was conservatively calculated to be 145 lbs/ft2.
Based on this calculation, scuppers will be provided in the Screenwell Building roof.
All other safety related roofs can accommodate the maximum roof loading described above.
A typical scupper detail is shown on Drawing EA 14A-7.
The scuppers will be placed at about five inches above the top of the roof.
Ten scuppers will be provided for the Screenwell Building.
The Final Safety Analysis Report will be changed to address these design aspects.
Very truly yours, C. V. Manga Senior Vice President NLR/rla 0917G xc:
R. A. Gramm, NRC Resident Inspector Project File (2)