ML20141H464
| ML20141H464 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 05/19/1997 |
| From: | Brinkman D NRC (Affiliation Not Assigned) |
| To: | Cross J DUQUESNE LIGHT CO. |
| References | |
| TAC-M97469, NUDOCS 9705230311 | |
| Download: ML20141H464 (4) | |
Text
May 19,1997 Mr. J. E. Cross President-Generation Group Duquesne Light Company 4,
Post Office Box 4 i
Shippingport, PA 15077 j
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION (RAI) REGARDING BEAVER VALLEY l
POWER STATION, UNIT NO. 1 (BVPS-1), REQUEST FOR EXEMPTION FROM THE l
REQUIREMENTS OF 10 CFR 70.24 FOR AN ACCIDENTAL CRITICALITY MONITOR (TAC NO. M97469)
I
Dear Mr. Cross:
By letter dated December 18, 1996, Duquesne Light Company (DLC) submitted a request for an exemption
'om the requirements of 10 CFR 70.24 for an accidental criticality monitor for the BPVS-1. The NRC staff is reviewing DLC't, request; however, before we can complete our review we will require DLC to specifically respond to the criteria in the enclosed RAI.
DLC is requested to respond to this RAI within 30 days of receipt of this letter to enable us to complete our review of DLC's exemption request within a timely manner.
l Please contact me at (301) 415-1409 if you have any questions regarding this issue.
Sincerely
/S/
Donald S. Brinkman, Senior Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket No. 50-334
Enclosure:
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%,**,+f May 19, 1997 Mr. J. E. Cross President-Generation Group Duquesne Light Company Post Office Box 4 Shippingport, PA 15077
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION (RAI) REGARDING BEAVER VALLEY POWER STATION, UNIT NO. 1 (BVPS-1), REQUEST FOR EXEMPTION FROM THE REQUIREMENTS OF 10 CFR 70.24 FOR AN ACCIDENTAL CRITICALITY MONITOR (TAC NO. M97469)
Dear Mr. Cross:
By letter dated Dec aber 18, 1996, Duquesne Light Company (DLC) submitted a request for an exemption from the requirements of 10 CFR 70.24 for an accidental criticality monitor for the BPVS-1. The NRC staff is reviewing DLC's request; however, before we can complete our review we will require DLC to specifically respond to the criteria in the c. closed RAI. DLC is requested to respond to tiis RAI within 30 days of receipt of this letter to enable us to complete our review of DLC's exemption request within a timely manner.
Please contact me at (301) 415-1409 if you have any questions regarding this issue.
Sincerely
[e Donald S. Brinkman, Senior Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket No. 50-334
Enclosure:
RAI cc w/ encl: See next page l
J. E. Cross Beaver Valley Power Station Duquesne Light Company Units 1 & 2 cc:
Jay E. Silberg, Esquire Bureau of Radiation Protection Shaw, Pittman, Potts & Trowbridge Pennsylvania Department of 2300 N Street, NW.
Environmental Resources Washington, DC 20037 ATTN: Michael P. Murphy Post Office Box 2063 Director-Safety and Licensing Harrisburg, PA 17120 Department (BV-A)
Duquesne Light Company Mayor of the Borrough of Beaver Valley Power Station Shippingport PO Box 4 Post Office Box 3 Shippingport, PA 150'77 Shippingport, PA 15077 Commissioner Roy M. Smith Regional Administrator, Region I West Virginia Department of Labor U.S. Nuclear Regulatory Commission Building 3 Room 319 475 Allendale Road Capitol Complex King of Prussia, PA 19406 Charleston, WVA 25305 Resident Inspector Director, Utilities Department U.S. Nuclear Regulat.ory Commission Pubiic Utilities Commission Post Office Box 298 180 East Broad Street Shippingport, PA 15077 Columbus, OH 43266-0573 Director, Pennsylvania Emergency Duquesne Light Company Management Agency Beaver Valley Power Station Post Office Bo: 3321 PO Box 4 Harrisburg, PA 17105-3321 Shippingport, PA 15077 ATTN:
S. C. Jain, Vice President Ohio EPA-DERR Nuclear Services (BV-A)
ATTN:
Zack A. Clayton Post Office Box 1049 Columbus, OH 43266-0149 Dr Judith Johnsrud National Energy Committee Sierra Club 433 Orlando Avenue State College, PA 16803 Duquesne Light Company Beaver Valley Power Station PO Box 4 Shippingport, PA 150/7 ATTN:
R. L. Grand Division Vice President, Nuclear Operations Group and Plant Manager (BV-SOSB-7)
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L REOUEST FOR ADDITIONAL INFORMATION REGARDING ERQEQSED EXEMPTION TO ACCIDENTAL CRITICALITY MONITOR REQUIREMENTS OF 10 CFR 70.24 BEAVER VALLEY POWER STATION. UNIT NO. 1 (BVPS-1) l DOCKET NO. 50-3 M Please provide responses to the following criteria for granting exeraptions to 10 CFR 70.24 requirements.
1.
Only 1 pressurized water reactor fuel assembly is allowed out of a shipping cask or storage rack at one time.
2.
With the fresh fuel storage racks filled with fuel of the maximum permissible U-235 enrichment and flooded with purg water, the maximum k-effective shall not exceed 0.95, at a 95% probability, 95% confidence level.
3.
With the fresh fuel storage racks filled with fuel of the maximum permissible U-235 enrichment and flooded with moderator at the (low) density corresponding to optimum moderation, the maximum k-effective shall not exceed 0.98, at a 95% probability, 95% confidence level.
4.
With the spent fuel storage racks filled with fuel of the maximum 3ermissible U-235 enrichment and flooded with pure water, the maximum
(-effective shall not exceed 0.95, at a 95% probability, 95% confidence level.
5.
The quantity of other forms of special nuclear material, such as sources, detectors, etc., that are stored on site is small enough to preclude achieving a critical mass.
6.
Radiation monitors, as required by General Design Criterion 63, are provided in fuel storage and handling areas to detect excessive radiation levels and to initiate appropriate safety actions.
7.
The maximum nominal U-235 enrichment is limited to 5 weight percent.
.