ML111940349

Millstone Power Station, Unit No. 2 - Request for Additional Information Regarding Amendment Request to Modify Technical Specification 3/4.9.3.1, Decay Time (TAC No. ME4376)

ML111940349
Person / Time
Site:	Hatch
Issue date:	07/14/2011
From:	Hughey J D Plant Licensing Branch 1
To:	Heacock D A Dominion Nuclear Connecticut
Sandeers, Carleen, NRR/DORL, 415-1603
References
TAC ME4376
Download: ML111940349 (3)

Text

UNITED NUCLEAR REGULATORY WASHINGTON, D.C. 20555-0001 July 14, 2011 Mr. David A. Heacock President and Chief Nuclear Officer Dominion Nuclear Connecticut, Inc. Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711 MILLSTONE POWER STATION, UNIT NO.2 -REQUEST FOR ADDITIONAL INFORMATION REGARDING AMENDMENT REQUEST TO MODIFY TECHNICAL SPECIFICATION 3/4.9.3.1, "DECAY TIME" (TAC NO. ME4376)

Dear Mr. Heacock:

By letter dated July 21,2010 1 , Dominion Nuclear Connecticut, Inc. (DNC or the licensee), submitted a license amendment request (LAR) for Millstone Power Station, Unit No.2 (MPS2). The proposed change would modify Technical Specification (TS) 3/4.9.3.1, "Decay Time," to reduce the minimum decay time for irradiated fuel movement from 150 hours0.00174 days <br />0.0417 hours <br />2.480159e-4 weeks <br />5.7075e-5 months <br /> to 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br />. The U.S. Nuclear Regulatory Commission (NRC) staff has reviewed the information provided by the licensee and has determined that additional information is needed in order to complete the review. The NRC staff requests responses to the enclosed questions.

The draft questions were sent to Mr. Bill Bartron, of your staff, to ensure that the questions were understandable, the regulatory basis for the questions was clear, and to determine if the information was previously docketed.

On July 14, 2011, Mr. Bartron agreed that DNC would provide a response by July 22, 2011. Please note that if you do not respond to this letter by the agreed-upon date or provide an acceptable alternate date in writing, we may reject your application for amendment under the provisions of Title 10 of the Code of Federal Regulations, Section 2.108. If you have any questions regarding this matter, please contact me at 301-415-3204.

John D. Hughey, Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-336

Enclosure:

As stated cc w/encl: Distribution via Listserv 1 Agencywide Document Access and Management System (ADAMS) Accession No. ML 102240064.

OFFICE OF NUCLEAR REACTOR REGULATION REQUEST FOR ADDITIONAL INFORMATION LICENSE AMENDMENT REQUEST TO REVISE TECHNICAL SPECIFICATION 3/4.9.3.1, "DECAY TIME" MILLSTONE POWER STATION, UNIT NO.2 DOCKET NO: 50-336 By letter dated July 21,2010 1 , Dominion Nuclear Connecticut, Inc. (DNC or the licensee), submitted a license amendment request (LAR) for Millstone Power Station, Unit No.2 (MPS2). The proposed change would modify Technical Specification (TS) 3/4.9.3.1, "Decay Time," to reduce the minimum decay time for irradiated fuel movement from 150 hours0.00174 days <br />0.0417 hours <br />2.480159e-4 weeks <br />5.7075e-5 months <br /> to 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br />. The U.S. Nuclear Regulatory Commission (NRC) staff has reviewed the information provided by the licensee and has determined that the following additional information is needed in order to complete the review. The amendment request describes the proposed change to TS 3/4.9.3.1 regarding the minimum decay time of 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> as being based on the current licensing basis as approved in MPS2 TS Amendment No. 284 2. However, the requested change is also described as being based on subsequent licensing basis changes related to revised spent fuel pool heating load analyses.

The LAR describes the licensing basis associated with the Updated Final Safety Analysis Report (UFSAR) Section 9.5.2 and the TS 3/4.9.3.1 Bases. The NRC staff is requesting that any evaluations and documentation associated with changes to these licensing basis items be submitted to the NRC for review in relation to the amendment request. RAI -01: Please submit the following documents associated with any licensing basis changes to the UFSAR Section 9.5.2 or revisions to the TS 3/4.9.3.1 Bases related to revised spent fuel pool heating load analyses: Reviews, screenings and evaluations completed in accordance with Title 10 of the Code of Federal Regulations Part 50, Section 50.59, associated with revisions to UFSAR Section 9.5.2 and TS Bases 3/4.9.3.1.

ii) Any associated UFSAR change iii) Any associated change packages related to the TS 3/4.9.3.1 iv) Revision 27 of MP-PROC-OPS-OP 2209A, "Refueling v) Revision 26-002 of MP-PROC-OPS-SP 2614A-002, "Control Room Surveillance, MODE 6 and Defueled." 1 Agencywide Document Access and Management System (ADAMS) Accession No. ML 102240064.

2 ADAMS Accession No. ML042360671.

Enclosure July 14, 2011 Mr. David A. Heacock President and Chief Nuclear Officer Dominion Nuclear Connecticut, Inc. Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711 MILLSTONE POWER STATION, UNIT NO.2 -REQUEST FOR ADDITIONAL INFORMATION REGARDING AMENDMENT REQUEST TO MODIFY TECHNICAL SPECIFICATION 3/4.9.3.1, "DECAY TIME" (TAC NO. ME4376)

Dear Mr. Heacock:

By letter dated July 21, 2010 1 , Dominion Nuclear Connecticut, Inc. (DNC or the licensee), submitted a license amendment request (LAR) for Millstone Power Station, Unit No.2 (MPS2). The proposed change would modify Technical Specification (TS) 3/4.9.3.1, "Decay Time," to reduce the minimum decay time for irradiated fuel movement from 150 hours0.00174 days <br />0.0417 hours <br />2.480159e-4 weeks <br />5.7075e-5 months <br /> to 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br />. The U.S. Nuclear Regulatory Commission (NRC) staff has reviewed the information provided by the licensee and has determined that additional information is needed in order to complete the review. The NRC staff requests responses to the enclosed questions.

The draft questions were sent to Mr. Bill Bartron, of your staff, to ensure that the questions were understandable, the regulatory basis for the questions was clear, and to determine if the information was previously docketed.

On July 14, 2011, Mr. Bartron agreed that DNC would provide a response by July 22, 2011. Please note that if you do not respond to this letter by the agreed-upon date or provide an acceptable alternate date in writing, we may reject your application for amendment under the provisions of Title 10 of the Code of Federal Regulations, Section 2.108. If you have any questions regarding this matter, please contact me at 301-415-3204.

Sincerely, Ira! John D. Hughey, Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-336

Enclosure:

As stated cc w/encl: Distribution via Listserv Distribution:

PUBLIC RidsNrrDorlDpr Resource RidsNrrDorlLpl1-2 Resource RidsNrrLAABaxter Resource RidsNrrPMMilistone Resource RidsAcrsAcnw_MailCTR Resource RidsOgcRp Resource RidsRgn1 MailCenter Resource Branch Reading ADAMS Accession No' ML111940349

• via e-mail .. OFFICE LPL1-2/PM LPL 1-2/LA LPL1-2/BC NAME JHughey ABaxter (SUttle for)* HChernoff DATE 07/1412011 07/14/2011 07/1412011 OfficIal Record Copy 1 Agencywide Document Access and Management System (ADAMS) Accession No. ML 102240064.