ML103270224

Request for Additional Information (Srxb), Auxiliary Feedwater Modification and Extended Power Uprate License Amendment Requests

ML103270224
Person / Time
Site:	Point Beach
Issue date:	11/23/2010
From:	Beltz T Plant Licensing Branch III
To:	Meyer L Point Beach
beltz T, NRR/DORL/LPL3-1, 301-415-3049
References
TAC ME1044, TAC ME1045, TAC ME1081, TAC ME1082
Download: ML103270224 (3)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 November 23, 2010 Mr. Larry Meyer Site Vice President NextEra Energy Point Beach, LLC 6610 Nuclear Road Two Rivers, WI 54241-9516 SUB~IECT:

POINT BEACH NUCLEAR PLANT, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION RE: AUXILIARY FEEDWATER MODIFICATION AND EXTENDED POWER UPRATE LICENSE AMENDMENT REQUESTS (TAC NOS. ME1081, ME1082, ME1044 AND ME1045)

Dear Mr. Meyer:

By letter to the U.S. Nuclear Regulatory Commission (NRC) dated April 7, 2009, (Agencywide Documents Access and Management System Accession No. ML091250564), NextEra Energy Point Beach, LLC, submitted a license amendment request for the Point Beach Nuclear Plant, Units 1 and 2. The proposed amendment would increase each unit's licensed thermal power level from 1540 megawatts thermal (MWt) to 1800 MWt, and revise the Technical Specifications to support operation at the increased thermal power level.

The NRC staff in the Reactor Systems Branch of the Office of Nuclear Reactor Regulation has determined that additional information is required to complete the review. The specific information requested is provided as an enclosure to this letter. During a discussion with Mr. Steve Hale on November 23, 2010, it was agreed that you would provide the additional information within 30 days of the date of this letter.

The NRC staff considers that timely response to the requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC's goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me immediately at (301) 415-3049.

Sincerely,

~~~

Terry A. Beltz, seniO~rOject Manager Plant Licensing Branch 111-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-266 and 50-301

Enclosure:

Request for Additional Information cc w/encl: Distribution via ListServ

REQUEST FOR ADDITIONAL INFORMATION RELATED TO POST-LOCA [LOSS-OF-COOLANT ACCIDENTI BORON PRECIPITATION AND AUXILIARY FEEDWATER I MAIN STEAMLINE BREAK REACTOR SYSTEMS BRANCH POINT BEACH NUCLEAR PLANT, UNITS 1 AND 2 LICENSE AMENDMENT REQUEST 261 AUXILIARY FEEDWATER MODIFICATION AND EXTENDED POWER UPRATE TAC NOS. ME1081, ME1082, ME1044 AND ME1045 Post-LOCA Boron Precipitation

1) Please provide copies of administrative procedures pertaining to Reactor Coolant System (RCS) boration.

2) Please describe the boration flowpath from the boric acid storage tank to the RCS when aligned for boration.

3) Please address the possibility of this flowpath existing during a LOCA with offsite power available.

4) Please provide Emergency Operating Procedures to show that the LOCA procedures provide for securing RCS boration from the boric acid storage tank early in the accident sequence.

5) Please provide reference to the licensing report or request for additional information response providing justification of a 20 minute delay in boric acid accumulation at a recently uprated plant of similar design to Point Beach.

6) Provide a limiting bottom-peaked axial power distribution.

Auxiliary Feedwater I Main Steamline Break

1) Please explain why the current licensing basis analysis for the core response associated with a postulated main steam line break is bounding of the Point Beach auxiliary feedwater system in both its present and proposed modified configurations.

Enclosure

'.. ML103270224 OFFICE NRRlLPL3-1/PM NRR/LPL3-1/LA NRRIDSS/SRXB/BC NRR/LPL3-1/BC NAME TBellz lTWengert for BTuily TUlses RPascarelli DATE 11/23/10 11/23/10 11/23/10 11/23/10