ML17219A266
| ML17219A266 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 12/10/1986 |
| From: | Tourigny E Office of Nuclear Reactor Regulation |
| To: | Woody C FLORIDA POWER & LIGHT CO. |
| References | |
| NUDOCS 8612170056 | |
| Download: ML17219A266 (6) | |
Text
Docket No. 50-335 Mr.
C. 0.
Moody Group Vice President Nuclear Energy Florida Power 8 Light Company P.
0.
Box 14000 Juno Beach, Florida 33408
Dear Mr. Moody:
DEC 181986
'stribution Docket NRC 8 L PDR PBD-8 Reading FMiraglia EJordan BGrimes JPartlow OGC-Bethesda Gray File 3.7a NThompson ETourigny PKreutzer ACRS (10)
JRaval JMa DFieno In conducting our review of your July 2, 1986 submittal relating to transferring spent fuel at the St.
Lucie Plant, Unit Nos.
1 and 2, we have determined that we will need the additional information identified
~in the enclosure to continue our review.
In order for us to maintain our review schedule, your response is requested within 30 days of receipt of this letter.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than 10 respondents; therefore OMB clearance is not required under P. L.96-511.
Please contact me at (301) 492-8007 if you have any questions concerning this letter.
Sincerely, rtglnal slBned >V E.
G. Tourigny, Project Manager.
PMR Project Directorate 88 Division of PMR Licensing-B
Enclosure:
Request for Additional Information cc: w/enclosure See next page PBD-8:g PBD"8:
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Mr. C. 0.
Woody Florida Power 5 Light Company St. Lucie Plant CC:
Mr. Jack Shreve Office of the Public Counsel Room 4, Holland Building Tallahassee, Florida 32304 Resident Inspector c/o U.S.
NRC 7585 S.
Hwy A1A Jensen Beach, Florida 33457 State Planning 5 Development Clearinghouse Office of Planning 8 Budget Executive Office of the Governor The Capitol Building Tallahassee, Florida 32301 Harold F. Reis, Esq.
Newman 8 Holtzinger 1615 L Street, N.W.
Washington, DC 20036 Norman A. Coll, Esq.
McCarthy, Steel, Hector and Davis 14th Floor, First National Bank Building Miami, Florida 33131 Administrator Department of Environmental Regulation Power Plant Siting Section State of Florida 2600 Blair Stone Road Tallahassee, Florida 32301 Mr. Weldon B. Lewis, County Administrator St. Lucie County 2300 Virginia Avenue, Room 104 Fort Pierce, Florida 33450 Mr. Charles B. Brinkman, Manager Washington - Nuclear Operations Combustion Engineering, Inc.
7910 Woodmont Avenue
- Bethesda, Maryland 20814 Mr. Allan Schubert, Manager Public Health Physicist Department of Health and Rehabilitative Services 1323 Winewood Blvd.
Tallahassee, Florida 32301 Regional Administrator, Region II U.S. Nuclear Regulatory Commission Executive Director for Operations 101 Marietta Street N.W., Suite 2900 Atlanta, Georgia 30323
ENCLOSURE RE UEST FOR AHlTH~N INFORMATION FLORIDA POWER ND L GHT C
SPENT.
L N
F 8
E UNITS PLANT, ELECTRI I
U NT N
ND R
SYSTEMS BRANCH In your submittal dated July 2, 1986, you proposed a licensing amendment to establish the option of transferring and storing spent fuel assemblies (SFAs) from the St. Lucie Unit 1 spent fuel pool (SFP) to the St. Lucie Unit 2 SFP in order to permit full core off-load capability at Unit 1, should it be required, due to loss of Unit 1 full core reserve storage capacity following the 1987 refueling outage.
Provide the following additional information with respect to this proposal:
1.
Provide further details regarding the Unit 1 SFAs to be stored in the Unit 2 SFP.
The details should include number, type and age of existing SFAs to be transferred to Unit 2 and the SFA locations in the Unit 2 storage racks to be utilized.
Also provide any necessary drawings to clarify your response.
2.
Confirm that you will handle no more than one SFA at'a given time in a shipping cask, and that only one type of shipping cask will be used.
3.
Provide a sugary of the evaluation performed concerning the shipping cask load path between the units.
This summary should include a discussion of the means utilized to confirm that safety related equipment including piping, components, and electric conduits that are located near the load path and those that are buried under the load path will not be adversely affected with regard to their capability to perform their intended safety functions during normal spent fuel transfer from Unit 1 to Unit 2 and in the event of an accident such as a cask drop.
Also, provide any necessary
- drawings to clarify your response.
4.
Provide the details of the spent fuel shipping cask and verify that it meets the requirements of 10 CFR Part 71.
5.
According to the technical specification for St. Lucie Unit 1, the spent fuel storage cask can be moved into the spent fuel storage pool area when the spent fuel in the pool has aged more than 1190 or 1490 hours0.0172 days <br />0.414 hours <br />0.00246 weeks <br />5.66945e-4 months <br />, depending on the amount of spent fuel in the pool.
The technical specifications also allow new spent fuel to be moved into the spent fuel storage area after the reactor has been shutdown for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
However, there is no basis provided for the minimum shutdown time that would be required if new spent fuel were transferred by a shipping cask to the St. Lucie Unit 2 SFP.
Therefore, provide an analysis for the minimum shutdown time that would be required for a postulated design basis cask drop accident occurring outdoors between Units 1 and 2 and confirm that the resulting off-site doses are less than 10K of the 10 CFR Part 100 guideline dose values.
4 6.
Provide a description of the dose rate at the surface of the pool water for both Units 1 and 2 from the fuel assemblies, control rods, burnable poison rods or any miscellaneous materials stored in the pool.
- Also, provide the dose rate from individual fuel assemblies as they are being transferred to the cask, and specify the depth of water shielding the fuel assemblies as they are being transferred.
If the depth of water shielding over a fuel assembly during transfer is less than 10 feet, or the dose rate 3 feet above the SFP water is greater than 5 mR/hr above ambient radiation levels, then propose a technical specification specifying the minimum depth of water shielding to be maintained over the fuel assembly as it is being transferred in order to maintain ALARA limits, and identify the measures taken to assure that this minimum depth will be maintained.
7.
a.
Describe the manner in which occupational exposure will be kept ALARA during the transfer, including the need for and the manner in which cleaning of the crud on SFP walls will be performed to reduce exposure rates in the SFP area.
Also, describe the means to be utilized to ensure that doses to divers are maintained ALARA.
8.
9.
b.
Describe the manner in which occupational exposure will be kept ALARA during cleanup operations after completion of the spent fuel transfer.
Discuss the extent of damage that the SFP may incur from a dropped spent fuel shipping cask, and confirm that sufficient borated make-up water is available to maintain the minimum SFP water level for any resulting leakage.
Provide an evaluation of the total dose to members of the public resulting from the proposed transfer considering the following:
a.
time required to move each fuel assembly from the Unit 1 SFP to the Unit 2 SFP;
't b.
releases of radioiodines and other radionuclides during this time; c.
direct radiation; d.
transfer and cleanup operations; and e.
other sources of exposure at the site.
10.
Describe the provisions for monitoring releases of radioactive materials, environmental radiological monitoring, and calculating and reporting effluents and offsite doses from the proposed transfer operations and subsequent clean-up operations, or justify not providing such monitoring, calculating, and reporting.
11.
Your request indicates that spent fuel will be transferred only from Unit 1 to Unit 2.
Confirm that this is the case.
If your request also involves the capability to transfer spent fuel from Unit 2 to Unit 1, provide information comparable to that indicated previously for this
- case, or confirm that the conditions of the transfer will be identical to that for Unit 1 to Unit 2.