ML20199F308
| ML20199F308 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 11/19/1997 |
| From: | Chandu Patel NRC (Affiliation Not Assigned) |
| To: | Dugger C ENTERGY OPERATIONS, INC. |
| References | |
| TAC-M98325, NUDOCS 9711240183 | |
| Download: ML20199F308 (5) | |
Text
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J; November 19, 1997 Mr. Charles M. Dugger
/
Vice President Operations Entergy Operations, Inc.
P. O. Box B
~
K111ona, LA 70066
SUBJECT:
. REQUEST FOR /DDITIONAL INFORMATION REGARDING THE SPENT FUEL' POOL RERACKING AT WATERFORD STEAM ELECTRIC STATION, UNIT 3 (TAC NO.
M98325) s
Dear Mr. Dugger:
The Nuclear Regulatory Commission staff is reviewing your letter dated March 27,-1997, aa supplemented by letters dated April 3, and October 23, 1997, requesting to increase the spent fuel storage capacity at the Waterford
. Steam Electric Station, Unit 3.
As discussed in the Enclosure, additional information is required from Entergy Operations, Inc., in order for the Plant Systems Branch to comolete its review of your request.
We request that you provide response within 30 days from the date of this letter.
If you have any questions, please call me.
Sincerely, Orig, signed by Chandu P. Patel, Project Manager Project Directorate IV-1 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket No. 50-382
Enclosure:
Request for Additional Information cc w/ enc 1: See next page DISTRIBUTIQH
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NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 30006 4001 s.,...../
November 19, t997 Mr. Charles M. Dugger Vice President Operations-Entergy. Operations, Inc.
P. O. Box B Killona, LA 70066
SUBJECT:
REQUEST FOR ADDI110NAL INFORMATION REGARDING THE SPENT FI'EL POOL RERACKING AT WATERFORD STEAM ELECTRIC STATION, UNIT 3 (TAC NO.
M98325)
Dear Mr. Dugger:
The Nuclear Regulatory Commission staff is reviewing your letter dated March 27, 1997, as supplemented by letters dated April 3, and October 23, 1997, requesting to increase the spent fuel storage capacity at the Waterford Steam Electric Station, Unit 3.
As discussed in the Enclosure, additional information is required from Entergy Operations, Inc., in order for the Plant Systems Branch to complete its review of your request.
We request that you provide response within 30 days from the date of this-letter.
If you have any questions, please call me.
Sincerely,
(,kMYM hf Chandu P. Patel, Project Manager Project Directorate IV-1 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket No. 50-382
Enclosure:
Request for Additional Information
.cc w/ encl: See next page l
l I
Mr. Charles M. Dugger-Entergy Operations, Inc, Waterford 3 cc:-
Administrator.
Regional Administrator, Region IV Louisiana Radiation Protection Division U.S. Nuclear Regulatory Commission :
Post Office Box 82135-611-Ryan Plaza Drive, Suite 1000 Baton Rouge, LA 70884-2135 Arlington, TX 76011 Vice President, Operations Resident inspector /Waterford NPS Support Post Office Box'822 Entergy Operations, Inc.
Killona, LA -70066 P.- 0. Box 31995-Jackson, MS 39286 Parish President Council St. Charles Parish Director.
P. O. Box 302 Nuclear Safety & Regulatory Affairs
.Hahnville, LA 70057 Entergy Operations, Inc.
P.'0. Box B Executive Vice-President Killona, LA 70066 and Chief Operating Officer Entergy Operations, Inc.
Wise, Carter, Child & Caraway P. O. Box 31995 P. O. Box 651 Jackson, MS 39286-1995 Jackson, MS 39205 Chairman General Manager Plant Operations Louisiana Public Service Commission Entergy Operations, Inc.
One American Place, Suite 1630 P. O. Box B Baton Rouge, LA 70825-1697 Killona, LA 70066 Licensing Manager Entergy Operations, Inc.
P. O. Box B Killona, LA 70066 Winston & Strawn 1400 L Street, N.W.
Washington, DC. 20005-3502 s.
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REQUEST FOR ADDITIONAL INFORMATION WATERFORD 3 SPENT FUEL POOL RERACKING i
1.0 Energy Operations Inc. (E01) aroposed to increase the spent fuel pool (SFP) t,terage capacity from tie current licensed capacity of 1088 fuel assemblies to &8 fuel assemblies, This increase of 5FP storage cepacity will be achieved by reracking the SFP with new high-density racks of 1049 s'.orage cells; installing additional high-density racks of 255 storage cells in the cask storage pit; and after permanent unit shutdown installing additional high-density racks of 294 stcrage cells in the refueling canal.
Please provide the following information:
Decay heat generation rates from the spent fuel assemblies stored in the cask storage pitch and the refueling canal as a function of time.
Cask storage pitch and refueling canal water temperature as a function of time.
Detailed description of how the decay heat generated from the spent fuel assembliet, stored in the cask storage pitch and the refueling canal will be reuoved.
Information should include: cooling system design parameters, equipment redundancy, seismic category, etc., and drawings to show cooling system configuration.
Detailed description to demonstrate how the drains in the cask storage pitch and the refueling canal will be plugged to preclude any water loss through the drains.
Discussion of the probability that the water level in the cask storage pitch and the refueling canal will be inadvertently dr..ned below a point approximately 10 feet above the top of the spent fuel.
In the event of complete loss of cooling in the in the cask storage pitch and the refueling canal, how long will it take the water to boil.
Discuss the means for providing make-up water to these areas.
2.0 With regard to the calculated decay :. eat loads following the proposed pool expansion, provide the decay heat genention rate as a function of decay time for both the routine refueling discharge and unplanned full-core officad conditions (information should clearly show the deday heat generation rate from each batch of the previously discharged spent fuel assemblies and the freshly discharged full core in the spent fuel pool).
3.0 Reracking the SFP and installing additional racks in the cask storage pitch would only provide an increase in storage capacity which would maintain the plant's capacity to accommodate a full-core discharge through the end of Cycle 19 in 2010. However. E01 plans to operate the plant for two additional cycles until 2022 without a full-core offload capability, provice detailed justifications for the oeviation to the guidance described in SRP Section 9.1.2 regarding spent fuel storage capacity.
ENCLOSURE a
. 4.0 Discuss the procedures to be utilized by the Waterford staff to n.onitor and control tho SFP water temperature and decay heat load so as to remain within the design basis limiting values for routine refueling and planned or unplanned full core offload events.
Include discussion of the location of needed instrumentation, means of monitoring it and integration of operation staff attivities with engineering staff activities in order to implement the procedure (s),
s
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