ML14239A496

General License 30-day Cask Registration Notification and Thermal Performance Assessment

ML14239A496
Person / Time
Site:	Nine Mile Point, 07201004
Issue date:	08/22/2014
From:	Darling T Exelon Generation Co
To:	Document Control Desk, NRC/NMSS/SFST
References
Download: ML14239A496 (3)

Text

Theresa Darling AWExeton Generation, Acting Regulatory Assurance Manager- Nine Mile Point P.O. Box 63 Lycoming, NY 13093 315-349-2221 Office www.exeloncorp.com Theresa.darling@exeloncorp.com August 22, 2014 U. S. Nuclear Regulatory Commission Washington, DC 20555-0001 ATTN: Document Control Desk Director, Division of Spent Fuel Storage and Transportation Office of Nuclear Material Safety and Safeguards Nine Mile Point Nuclear Station, Units 1 and 2 Renewed Facility Operating License Nos. DPR-63 and NPF-69 Docket Nos. 50-220 and 50-410 Nine Mile Point Nuclear Station Independent Spent Fuel Storage Installation General License Docket No. 72-1036

SUBJECT:

General License 30-day Cask Registration Notification and Thermal Performance Assessment Pursuant to the requirements of 10 CFR 72.212(b)(2), this letter provides the information to register the use of three approved spent fuel storage casks at the Nine Mile Point Nuclear Station (NMPNS) Independent Spent Fuel Storage Installation (ISFSI).

Licensee's Name: Nine Mile Point Nuclear Station, LLC Address: PO Box 63 Lycoming, NY 13093 Reactor License Numbers: DPR-63 and NPF-69 Docket Numbers: 50-220, 50-410 and 72-1036 Person Responsible for Ms. Theresa H. Darling Providing additional information: 315-349-2221 Cask Certificate Number: 1004 Certificate Amendment Number: 10 Cask Model Number: NUHOMS&-61 BTH Cask Identification Numbers: NMP61BTH-1-A-2-017, loaded July 25, 2014 NMP61BTH-1-A-2-018, loaded July 31, 2014 NMP61BTH-1-A-2-019, loaded August 7, 2014

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Document Control Desk August 22, 2014 Page 2 The Technical Specifications (TS) for Certificate of Compliance (CoC) No. 1004, Amendment No. 10, §1.1.7 "Special Requirements for First System in Place", requires the results of the temperature measurements of the first Dry Shielded Canister (DSC) placed in service be submitted to the NRC for evaluation and assessment. Additionally, this section of TS requires subsequent users of the system to report heat loads higher than the first user. The first user of the NUHOMS CoC No. 1004, Duke Energy, submitted the heat transfer characteristics for an 18.95 kilowatt (kVV) Dry Shielded Canister (DSC) in a letter to the NRC, from Duke Energy, "Cask Certificate of Compliance, Docket No.: 72-1004, 30-day Report for Higher Canister Heat Loading per General Requirement Section 1.1.7," dated August 8, 2007 (ML072340622). The first DSC loaded at NMPNS had a heat load of 7.30 kW, as reported in our letter dated October 17, 2012.

A summary of the thermal performance of the 17th through 19th DSCs in place at the NMPNS ISFSI is submitted for your information.

Horizontal Storage Module (HSM) Model: NUHOMS Model 102 HSM Identification Number: 7DF S-HSM003G Cask: NMIP61 BTH-1 -A-2-017 Calculated Heat Load: 7.40)8 kW Calculated AT: 42 dlegrees F Actual AT (Note 1): 25.015 degrees F HSM Identification Number: 7DF S-HSM003H Cask: NMIP61 BTH-1 -A-2-018 Calculated Heat Load: 7.3E39 kW Calculated AT: 42.E degrees F Actual AT (Note 1): 27.815 degrees F HSM Identification Number: 7DF S-HSM0031 Cask: NMI P61 BTH-1 -A-2-019 Calculated Heat Load: 7.34,0 kW Calculated AT: 42 clegrees F Actual AT (Note 1): 37.3 degrees F Note 1: The actual AT represents the measured AT obtained during equilibrium conditions. Equilibrium conditions were achieved when the daily temperature change observed was less than 6 degrees F over three consecutive days.

This letter contains no NRC commitments. Should you have any questions regarding the information in this submittal, please contact me at (315) 349-2221.

Sincerely, Theresa H. Darling Acting Regulatory Assurance Manager

Document Control Desk August 22, 2014 Page 3 cc: NRC Regional Administrator, Region I NRC Resident Inspector NRR Project Manager