ML20128G330
| ML20128G330 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 06/06/1985 |
| From: | Singh B Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20128G333 | List: |
| References | |
| NUDOCS 8507090155 | |
| Download: ML20128G330 (5) | |
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Docket No. 50-412 APPLICANT: Duquesne Light Company (DLC)
FACILITY:
Beaver Valley Power Station, Unit 2
SUBJECT:
ftEETING SUFMARY - PROBABLE MAXIMUM PRECIPITATION (PMP)
On March PS, 1985, NRC and applicant representatives met in Bethesda, Maryland to discuss PMP issue. This meeting was originally scheduled as backfit spreal neeting but was changed to a technical meeting to resolve technical differences between the two parties. A neeting notice and attendance roster are enclosed (Enclosures 1 and 2 respectively).
The applicant provided flood levels at critical entrances and volure of floor through exterior doors using Probable Maximum Flood (PMF) values based on Hydrometeorological Reports (HMR) Nos. 51 and 52. These PPF values were transmitted to the applicant by a letter dated March 7, 1985.
The potential effects of these values on safety-related equiprent were discussed in the meeting. The applicant's results are enclosed (Fnclosure 3). The effect of ponded water on roofs of safety-related building were also discussed.
The staff requested factual infornation concerning consequences of flooding through the identified doors and the details on roof design. Therefore, another meeting was scheduled on April 9, 1985. The above issues were discussed in this neeting and the ePplicant was requested to docket the information provided in this neeting. The staff thought that the calculation methods were reasonable.
TI'e staff's report on local flooding is attached as Enclosure 4.
I5 B. K. Singh, P oject Menager Licensing Branch No. 3 Division of Licensing
Enclosures:
As stated cc: See next page DISTRIBUTION 4Decket=Fi h 8507090155 850606 ADOCK 050 2
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SUMMARY
DISTRIBUTION
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DocketNo(s): 50-412 NRC POR Local PJR NSIC PRC Sy. tem LB3 Reading Attorney, OELD GWKnighton-Project Manager BKSingh JLee NRC PARTICIPANTS l
B. K. Singh G. W. K9fghton J. P. Knight R. L. Ballard R. Gonza'es D. Cherry, Jr.
J. Convan
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4 Beaver Valley Mr. John J. Carey Vice President, Nuclear Duquesne Light Company Robinson Plaza Building, No. 2, Suite 110 PA Route 60 Pittsburgh, Pennsylvania 15205 Gerald Charnoff, Esq.
Mr. R. E. Martin, Manager Engineering Jay E. Silberg, Esq.
Beaver Valley Two Project Shaw, Pittman, Potts & Trowbridge Duquesne Light Company 1800 M Street, N.W.
Robinson Plaza Building No. 2, Suite 110 Washington, DC 20036 PA Route 60 Pittsburgh, Pennsylvania 15205 Mr. C. W. Ewing, Quality Assurance Zori Ferkin Manager Assistant Counsel Quality Assurance Department Governor Energy Council Duquense Light Company 1625 N. Front Street P. O. Box 186 Harrisburg, PA 15105 Shippingport, Pennsylvania 15077 Mr. John J. Carey Vice President, Nuclear Duquense Light Company Director, Pennsylvania Emergency P. O. Box 4 Management Agency Pittsburgh, Pennsylvania 15205 Room B-151 Transportation & Safety Building Harrisburg, Pennsylvania 17120 Mr. T. J. Lex Mr. Thomas Gerusky Westinghouse Electric Corporation Bureau of Radiation Protection Power Systems PA Department of Environmental P. O. Box 355 Resources Pittsburgh, Pennsylvania 15230 P. O. Box 2063 Harrisburg, Pennsylvania 17120 Mr. P. RaySircar Stone & Webster Engineering Corporation BVPS-2 Records Management Supervisor P. O. Box 2325 Duquesne Light Company Boston, Massachusetts 02107 Post Office Box 4 Shippingport Pennsylvania 15077 Mr. Glenn Walton U. S. NRC John A. Lee, Esq.
P. O. 181 Duauesne Light Company Shippingport, Pennsylvania 15077 1 0xford Centre 301 Grant Street Mr. Thomas E. Murley, Regional Admin.
Pittsburgh, Pennsylvania 15279 U. S. NRC, Region I 631 Park Avenue King of Prussia, Pennsylvania 15229
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. Mr. E. F. Kurtz, Jr., Manager Regulatory Affairs Beaver Valley Two Project Duquense Light Company
' Robinson Plaza Buidling No. 2 Suite #210 PA Route 60 Pittsburgh, Pennsylvania 15205' 4
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Agenda for the Beaver Valley 2 Backfit Appeal Meeting Relating to Probable Maximum Precipitation 1.
Discuss safety significance of flood protection.
2.
Discussion of NRC and applicant written position and any additional clarification on:
a.
staff requirements b.
.how staff requirements relating to Probable Ma4fmum Precipitation should achieve.and maintain an acceptable it.el of safety c.
relation of staff requirements to existing regulations d.
schedule for implementing requirements 3.
How staff requirements do or do not constitute a backfit.
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WASHINGTON. D. C. 20555 k... *,[
GAR 2 21985 Docket No.: 50-412 MEM0RANDt!M FOR: George W. Knighton, Chief Licensing Branch No. 3 Division of Licensing FROM:
Victor Nerses, Project Manager Licensing Branch No. 3 Division of Licensing
SUBJECT:
FORTHCOMING BEAVER VALLEY 2 MEETING BETWEEN THE NRC AND DUOVESNE LIGHT COMPANY DATE & TIME:
Thursday, March 28, 1985 2:30 pm LOCATION:
P-412 Phillips Building 7920 Norfolk Avenue Bethesda, Maryland PURPOSE:
Appeal of the requirements relating to Probable Maximum Precipitation (refer to enclosed agenda).
PARTICIPANTS:
N3 H. Thompson, J. Knight, W. Johnston, R. Ballard, G. Knighton, V. Nerses, et al.
Duquesne Licht Company E. Kurtz, J. J. Carey, Stone and Webster Representatives, et al.
icto Ners
, Project Manager Licensing anch No. 3 Division of Licensing
Enclosure:
As stated cc: See next page
- Meetings between NRC technical staff and applicants for licenses are open for interested members of the public, petitioners, intervenors, or other parties to attend as observers pursuant to "Open Meeting Statement of the NRC Staff Policy",
43 Federal Register 28058,6/28/78. Those interested in attending this meeting should make their intentions known to the Project Manager, V. Nerses, at (301) 492-7238, by no later than noon, March 27, 1985.
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a VOLUME OF FLOW THROUGH EXTERIOR DOORS USING NRC PMF VALUES FROM HMR 51/52 DOOR DEPTH OF
' CAT 1 DOOR WIDTH MAX WEAR THRESHOLD WATER OVER DURATION VOLUME STRUCTURES I.D.
(FT)
GAP (IN)
HEIGHT (IN) SILL (FT)
(MIN)
(FT?)
AUX A35-5,~
8 1/16 5/8 03 10 72 BLDG A35-1 3
1/8 5/8 03 to 59 A35-3 3
1/8 5/8 0.3 to 59 CONTROL S35 7 1/32 5/8 03 10 22 BLDG S35-74 6
1/32 5/8 03 10 19 S35-72 3
1/8 5/8 03 10 59 035-1 35 1/16 1/2 0.3 10 32 035-2 3
1/32 1/2 03 10 10 )
035-1 3
1/32 0
03 10 11 SERVICE SB30-8 8
1/16 0
0.80 5
68 BLDG 0 34 43 0 32 41 0 30 40 0.28 38 0.26 37 0.22 34 0.20 32 0.17 29 0.15 27 *
- 0.13 25 0.10 21 1435 SB30-7 3
1/8 5/8 03 5
30 DIESEL DG32-1 3
1/16 5/8 03 5
14 BLDG DG32-4 3
1/16 5/8 03 14 DG32-5 3
1/8 5/8 03 30)
DG32-2 3
1/16 0
15 DG32-6 3
1/8 5/8 0.3 30 )
DG32-3 3
1/16 0
15 FUEL &
F35-1 3
1/16 5/8 03 10 27 DECON BLDG F35-2 23 1/16 0
0.2 10 183 F35-3 3
1/16 5/8 0.2 10 20 D35-1 12 1/16 0
0.2 10 95 D35-2 3
1/16 5/8 0.2 10 20
6-s Flood Levels at Critical BVPS-2 Entrances Based on llHR 51/52 Max Water Water Water Max.
yepth yePth Lowest Surface Water Area Area Access to El. at Depth Without'J With 81dg.
Access Over Drains Drains (Inch)
(Inch) from yard Doors sill Category I Structures
( feet-ms1).
( feet)
.(feet)
Fain Steam Valve Suilding Area 735.5 732.8 Safeguards Building
' 737,.5 732.8-
?
Reactor Containment 767.83 735.5 (equipreent hatch)
Emergency Diesel Generator Building.
732.8 0.3 1 Door
'32.5 732.j, 3.,
.732.8 0.3 0.2 trace 2 Doors
+
Auxiliary Building
'- * ^-
3 Doors
- 735.5 735.8m.
0.3 trace (1) trace
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Fuel I, Decontamination Building 735.8 0.3 1 Door 735.5
,.,.t
.,4,3 i
735.7 0.2 (2) trac'e 3 Doors
.735.5 Control Building 3 Doors (So.)
.735.5 735.8 0.3
<0.1 (3) 735.8 0.3 2 Doors (flo.)
735.5 j
r Service Buildin 1 Door (5830-6 732.0 732.0 0.8
.I 1 Door 732.5.*
5 732.8 0.3 1.3 trace
.e [;.6 fess critical then internal pipe break andysis 6
No equipment. required for safe shutdown Interior floor drains in Equipment room only
.