ML093370648

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Request for Additional Information Regarding Generic Letter 2008-01, Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal and Containment Spray Systems
ML093370648
Person / Time
Site: Fermi DTE Energy icon.png
Issue date: 12/11/2009
From: Mahesh Chawla
Plant Licensing Branch III
To: Jennifer Davis
Detroit Edison
Chawla M, NRR/DORL, 415-8371
References
TAC MD7827
Download: ML093370648 (3)


Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 December 11, 2009 Mr. Jack M. Davis Senior Vice President and Chief Nuclear Officer Detroit Edison Company Fermi 2 -210 NOC 6400 North Dixie Highway Newport, MI 48166 SUB..IECT: FERMI NUCLEAR POWER PLANT, UNIT 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING GENERIC LETTER 2008-01, "MANAGING GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS" (TAC NO. MD7827)

Dear Mr. Davis:

By letters dated October 14, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML082970220), and July 29, 2009 (ADAMS Accession No. ML092160404), Detroit Edison, the licensee for Fermi Unit 2, provided a response to Generic Letter 2008-01. On the basis of the provided information, the NRC Staff has concluded that additional information is required from the licensee to determine that the licensee has acceptably demonstrated "that the subject systems are in compliance with the current licensing and design bases and applicable regulatory requirements, and that suitable design, operational, and testing control measures are in place for maintaining this compliance" as stated in Generic Letter 2008-01.

The initial request for additional information was transmitted to the licensee via e-mail dated November 13, 2009 (ADAMS Accession No. ML093170245). During the teleconference with the licensee on November 17, 2009, the staff agreed to modify this request. Please provide a response within 45 days of the date of this letter.

If you have any questions regarding this letter, please feel free to contact me at (301) 415-8371.

Sincerely, Mahesh L. Chawla, Project Manager Plant Licensing Branch 111-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-341

Enclosure:

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

REQUEST FOR ADDITIONAL INFORMATION FERMI NUCLEAR POWER PLANT, UNIT 2 DOCKET NO. 50-341 Guidance on Nuclear Regulatory Commission (NRC) staff expectations is provided by Reference 1 which is generally consistent with Nuclear Energy Institute (NEI) guidance provided to industry in Reference 2 as clarified in later NEI communications. The NRC staff recommends that the licensee consult Reference 1 when responding to the following Request for Additional Information:

1. Describe how, when found during the performance of routine surveillance and ultrasonic testing, void volumes are determined or quantified.
2. Discuss what provisions are in place to assure that gas was removed, and not transported to a high point that was previously found to be void-free, following the performance of venting procedures.
3. Please clarify whether all voids found will be quantified and recorded as a part of the Condition Assessment Resolution Document (CARD) entry process that is followed when voids are found during routine surveillance, and, if any found voiding is not entered as a CARD, why it would be excluded.
4. Provide a brief discussion of any training that is planned in response to GL 2008-001.

REFERENCES 1 Ruland, William H., USNRC, letter to Riley, James H., Nuclear Energy Institute.

"Preliminary Assessment of Responses to Generic Letter 2008-01, 'Managing Gas Accumulation in emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems,' and Future NRC Staff Review Plans," May 28,2009 (ADAMS Accession No. ML091390637).

2 Riley, James H., Nuclear Energy Institute, letter to Administrative Points of Contact "Generic Letter (GL) 2008-01, 'Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Contain Spray Systems' Evaluation and 3 Month Response Template," Enclosure 2, "Generic Letter 2008-01 Response Guidance," March 20,2008 (ADAMS Accession No. ML093070575).

ENCLOSURE

ML093170245). During the teleconference with the licensee on November 17,2009, the staff agreed to modify this request. Please provide a response within 45 days of the date of this letter.

If you have any questions regarding this letter, please feel free to contact me at (301) 415-8371.

Sincerely, IRA!

Mahesh L. Chawla, Project Manager Plant Licensing Branch 111-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-341

Enclosure:

Request for Additional Information cc w/encl: Distribution via ListServ DISTRIBUTION PUBLIC RidsNrrLATHarris Resource LPL3-1 rlf RidsNrrPMFermi2 Resource RidsNrrDorlLpl3-1 Resource RidsRgn3MailCenter Resource RidsOgcRp Resource RidsAcrsAcnw_MailCTR Resource RidsNrrDorlDpr Resource LWard, NRR GCranston, NRR BParks, NRR ADAMS Accession Number: ML093370648

OFFICE LPL3-1/PM LPL3-1/LA NRRISRXB/BC LPL3-1/BC NAME MChawla THarris GCranston*

RPascarelli (PTam for)

DATE 12/10/09 12/09/09 12/1/09 12/11/09