ML080590023
| ML080590023 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 04/02/2008 |
| From: | Cotton K NRC/NRR/ADRO/DORL/LPLII-1 |
| To: | Jerrica Johnson Southern Nuclear Operating Co |
| Cotton K R, NRR/DORL, 301-415-1438 | |
| References | |
| TAC MD5433, TAC MD5434 | |
| Download: ML080590023 (5) | |
Text
April 2, 2008 Mr. J. Randy Johnson Vice President - Farley Joseph M. Farley Nuclear Plant 7388 North State Highway 95 Columbia, AL 36319
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING THE JOSEPH M. FARLEY NUCLEAR PLANT, UNITS 1 AND 2, LICENSE AMENDMENT REQUEST TO ALLOW PERSONNEL AIR LOCKS OPEN DURING FUEL MOVEMENT (TAC NOS. MD5433 AND MD5434)
Dear Mr. Johnson The Nuclear Regulatory Commission Staff (NRC) has reviewed the License Amendment Request dated April 27, 2007, submitted by Southern Nuclear Operating Company. The NRC staff has identified additional information needed to complete its review of this amendment request. The Additional Information Request is provided as an enclosure to this memorandum.
Sincerely,
/RA by RJervey for/
Karen Cotton, Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-348 and 50-364
Enclosure:
RAI cc w/encl: See next page
April 2, 2008 Mr. J. Randy Johnson Vice President - Farley Joseph M. Farley Nuclear Plant 7388 North State Highway 95 Columbia, AL 36319
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING THE JOSEPH M. FARLEY NUCLEAR PLANT, UNITS 1 AND 2, LICENSE AMENDMENT REQUEST TO ALLOW PERSONNEL AIR LOCKS OPEN DURING FUEL MOVEMENT (TAC NOS. MD5433 AND MD5434)
Dear Mr. Johnson The Nuclear Regulatory Commission Staff (NRC) has reviewed the License Amendment Request dated April 27, 2007, submitted by Southern Nuclear Operating Company. The NRC staff has identified additional information needed to complete its review of this amendment request. The Additional Information Request is provided as an enclosure to this memorandum.
Sincerely,
/RA by RJervey for/
Karen Cotton, Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-348 and 50-364
Enclosure:
RAI cc w/encl: See next page Distribution:
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RidsNrrDorlDpr RidsNrrLABTully Accession Number: ML080590023 OFFICE NRR/LPL2-1/PM NRR/LP3-1/LA NRR/LP2-1/LA NRR/LPL2-1/BC NAME KCotton BTully MOBrien MWong DATE 4/2/08 4/2/08 4/2/08 4/2/08 OFFICIAL RECORD COPY
Enclosure REQUEST FOR ADDITIONAL INFORMATION CONTAINMENT AND VENTILATION BRANCH OFFICE OF NUCLEAR REACTOR REGULATION LICENSE AMENDMENT REQUEST TO ALLOW PERSONNEL AIR LOCKS OPEN DURING FUEL MOVEMENT JOSEPH M. FARLEY NUCLEAR PLANT, UNITS 1 AND 2 (TAC NOS. MD5433 AND MD5434)
- 1. The LAR makes reference in several places to Fuel Handling Accident durations and response times:
Accident Durations:
, Section 1.0 (page 2 of 24) - In summary, the dose consequences of a FHA inside containment with the containment air locks open for the duration of the accident release are within the radiological dose guidelines of 10 CFR 100 and GDC 19.
, Section 3.1 (page 5 of 24) - SNC also assumed that essentially 100 percent of the fission products released from the reactor cavity are released to the environment in 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> without any credit for filtration.
Response Times:
, Section 2.4 (page 5 of 24) - SNC is processing a supporting TS Bases change requiring that in the event of a FHA an open personnel air lock can and will be closed promptly following containment evacuation. No other controls are considered necessary to implement this amendment. This closure can be completed within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of the fuel handling accident.
, Section 3.2 (page 12 of 24) - SNC performed an evaluation of potential doses to the workers thyroid, whole body, and skin. The equipment hatch and the personnel air locks will be closed within two hours of the event. The closure crew will require less than 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> inside containment.
, Technical Specification and Bases Markups Pages, LCO (page 6 of 9) - The equipment hatch and personnel air locks door openings must be capable of being cleared of any obstruction so that closure can be achieved as soon as possible.
, Technical Specification and Bases Markups Pages, Insert B 3.9.3 (page 7 of 9)
- The closure of the equipment hatch and the personnel air locks will be completed promptly following a fuel handling accident within containment.
Please clarify that based on the analysis, is there a need to close the equipment hatch and personnel air locks in two hours? If such a need exists, why is the specific time not discussed in the bases section? Where are the requirements included to direct the personnel to accomplish the closure in two hours?
2 Enclosure 1, Section 3.2 - It is stated in the first paragraph of this section that training and actual performance or simulation of the hatch closure is required of Mechanical Maintenance Journeyman. However, it is also stated in the fourth paragraph of this section that, because of existing training, no additional training would be required to support closure activities. Bases section B 3.9.3 (Enclosure 2, page 5 of 9) states (under LCO) that for the equipment hatch and personnel air locks, closure capability are provided by a designated trained closure crew and the necessary equipment. Please clarify if any additional training is planned due to the proposed change. Will the closure of the equipment hatch and personnel air locks take place in series or in parallel? Since additional doors are required to be closed due to the change, will there be an increase in available Mechanical Maintenance Journeymen or plans to make dedicated personnel available for this purpose? Also, explain why additional training would not be necessary, considering that there are more doors to be closed under conditions that are distinctly different from a normal closure.
3 A normal unfiltered intake of 2,340 ft3/min to the control room ventilation was assumed at the start of the fuel handling accident. Have any changes taken place in the normal intake flowpath since the last measurements were made? If so, how did it affect the normal intake quantity?
Joseph M. Farley Nuclear Plant, Units 1 & 2 cc:
Mr. J. Randy Johnson Vice President - Farley Joseph M. Farley Nuclear Plant 7388 North State Highway 95 Columbia, AL 36319 Mr. B. D. McKinney, Licensing Manager Southern Nuclear Operating Company, Inc.
P.O. Box 1295 Birmingham, AL 35201-1295 Mr. M. Stanford Blanton Balch and Bingham Law Firm P.O. Box 306 1710 Sixth Avenue North Birmingham, AL 35201 Mr. J. Gasser Executive Vice President Southern Nuclear Operating Company, Inc.
P.O. Box 1295 Birmingham, AL 35201 State Health Officer Alabama Department of Public Health 434 Monroe St.
Montgomery, AL 36130-1701 Chairman Houston County Commission P.O. Box 6406 Dothan, AL 36302 Resident Inspector U.S. Nuclear Regulatory Commission 7388 N. State Highway 95 Columbia, AL 36319 William D. Oldfield SAER Supervisor Southern Nuclear Operating Company, Inc.
P.O. Box 470 Ashford, AL 36312