ML062420147
| ML062420147 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 08/31/2006 |
| From: | Milano P NRC/NRR/ADRO/DORL/LPLA |
| To: | Korsnick M Ginna |
| Milano P, NRR/DORL/LPLA, 415-1457 | |
| References | |
| TAC MD0686 | |
| Download: ML062420147 (6) | |
Text
August 31, 2006 Mrs. Mary G. Korsnick Vice President R.E. Ginna Nuclear Power Plant R.E. Ginna Nuclear Power Plant, LLC 1503 Lake Road Ontario, NY 14519
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING TEST FREQUENCY FOR ACCUMULATOR BORON CONCENTRATION, R.E. GINNA NUCLEAR POWER PLANT (TAC NO. MD0686)
Dear Mrs. Korsnick:
By letter dated March 28, 2006, R.E. Ginna Nuclear Power Plant, LCC requested a change to the test frequency for boron concentration in the emergency core cooling system accumulators in Technical Specification Surveillance Requirement 3.5.1.4.
The Nuclear Regulatory Commission (NRC) has reviewed the information provided in the application and has determined that additional information is needed to complete its review.
Enclosed is the NRC staffs request for additional information (RAI). This RAI was discussed with your staff on August 30, 2006, and it was agreed that your response would be provided within 60 days from the date of this letter.
Sincerely,
/RA/
Patrick D. Milano, Senior Project Manager Plant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-244
Enclosure:
RAI cc w/encl: See next page
August 31, 2006 Mrs. Mary G. Korsnick Vice President R.E. Ginna Nuclear Power Plant R.E. Ginna Nuclear Power Plant, LLC 1503 Lake Road Ontario, NY 14519
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING TEST FREQUENCY FOR ACCUMULATOR BORON CONCENTRATION, R.E. GINNA NUCLEAR POWER PLANT (TAC NO. MD0686)
Dear Mrs. Korsnick:
By letter dated March 28, 2006, R.E. Ginna Nuclear Power Plant, LCC requested a change to the test frequency for boron concentration in the emergency core cooling system accumulators in Technical Specification Surveillance Requirement 3.5.1.4.
The Nuclear Regulatory Commission (NRC) has reviewed the information provided in the application and has determined that additional information is needed to complete its review.
Enclosed is the NRC staffs request for additional information (RAI). This RAI was discussed with your staff on August 30, 2006, and it was agreed that your response would be provided within 60 days from the date of this letter.
Sincerely,
/RA/
Patrick D. Milano, Senior Project Manager Plant Licensing Branch I-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-244
Enclosure:
RAI cc w/encl: See next page DISTRIBUTION:
PUBLIC PDI-1 Reading File R. Laufer RidsNrrDorlLplI-1 P. Milano RidsNrrPMPMilano S. Little RidsNrrLASLittle A. Hiser RidsNrrDciCsgb K. Parczewski DORL DPR ACRS RidsAcrsAcnwMailCenter OGC RidsOgcRp Accession Number: ML062420147 OFFICE LPL1-1/PM LPL1-1/LA Csgb/BC LPL1-1/BC NAME PMilano SLittle AHiser RLaufer DATE 08/30/06 08/30/06 08/08/06 08/31/06 OFFICIAL RECORD COPY
R.E. Ginna Nuclear Power Plant cc:
Mr. Michael J. Wallace President R.E. Ginna Nuclear Power Plant, LLC c/o Constellation Energy 750 East Pratt Street Baltimore, MD 21202 Mr. John M. Heffley Senior Vice President and Chief Nuclear Officer Constellation Generation Group 1997 Annapolis Exchange Parkway Suite 500 Annapolis, MD 21401 Kenneth Kolaczyk, Sr. Resident Inspector R.E. Ginna Nuclear Power Plant U.S. Nuclear Regulatory Commission 1503 Lake Road Ontario, NY 14519 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Peter R. Smith, President New York State Energy, Research, and Development Authority 17 Columbia Circle Albany, NY 12203-6399 Carey W. Fleming, Esquire Senior Counsel - Nuclear Generation Constellation Generation Group, LLC 750 East Pratt Street, 17th Floor Baltimore, MD 21202 Charles Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway New York, NY 10271 Ms. Thelma Wideman, Director Wayne County Emergency Management Office Wayne County Emergency Operations Center 7336 Route 31 Lyons, NY 14489 Ms. Mary Louise Meisenzahl Administrator, Monroe County Office of Emergency Preparedness 1190 Scottsville Road, Suite 200 Rochester, NY 14624 Mr. Paul Eddy New York State Department of Public Service 3 Empire State Plaza, 10th Floor Albany, NY 12223
REQUEST FOR ADDITIONAL INFORMATION R. E. GINNA NUCLEAR POWER PLANT TESTING FREQUENCY FOR EMERGENCY CORE COOLING SYSTEM ACCUMULATOR BORON CONCENTRATION DOCKET NO. 50-244 By letter dated March 28, 2006, R.E. Ginna Nuclear Power Plant, LCC (the licensee) requested a change to the test frequency for boron concentration in the emergency core cooling system (ECCS) accumulators in R.E. Ginna Nuclear Power Plant (Ginna) Technical Specifications (TSs) Surveillance Requirement (SR) 3.5.1.4. The current TS SR 3.5.1.4 requires the boron concentration to be verified every 31 days on a staggered test basis. This requirement is met by taking a sample from one of the accumulators every 31 days. The proposed change would require leakage into the ECCS accumulators to be monitored every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and a sample to be taken every 6 months for an analysis.
To complete its review, the Nuclear Regulatory Commission (NRC) staff requests the following additional information:
- 1.
To justify the proposed change of SRs, the licensee evaluated ECCS accumulator levels, volume addition, leakage in, leakage out and sample concentrations for an 8-month period between April 2005 and December 2005. This time interval was chosen because it was considered to be representative of accumulator behavior since 2003.
Explain what parameters were considered to determine the representative behavior since 2003.
- 2.
List all the possible sources of water that could leak into or out of the accumulator.
Indicate those sources that were not included in the analysis, and why.
- 3.
During a 6-month period, 283 gallons of water was added to accumulator B to maintain level and boron concentration within the prescribed limit.
What was the boron concentration of the added water.
- 4.
How were the values of V1 and V2 determined? What does the volume of 8311 gallons represent, and what does 15% mean?
- 5.
Provide a more detailed description of the level instrumentation and how the instrumentation correlates levels of the liquid in the accumulator to corresponding volumes. In order to understand how the system works, physical arrangements of the different components of the system should be described.
Enclosure