ML12250A852

Request for Additional Information (TAC Nos. ME9004 and ME9005)

ML12250A852
Person / Time
Site:	Hatch
Issue date:	09/11/2012
From:	Martin R E Plant Licensing Branch II
To:	Ajluni M J Southern Nuclear Operating Co
MARTIN R E
References
TAC ME9004, TAC ME9005
Download: ML12250A852 (3)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 September 11, 2012 Mr. M. J. Ajluni Nuclear Licensing Director Southern Nuclear Operating Company, Inc. 40 Inverness Center Parkway Post Office Box 1295, Bin -038 Birmingham, AL 35201-1295 EDWIN I. HATCH NUCLEAR PLANT, UNITS 1 AND 2 -REQUEST FOR ADDITIONAL INFORMATION (TAC NOS. ME9004, ME9005)

Dear Mr. Ajluni:

By letter dated July 5, 2012 (Agencywide Documents Access and Management System Accession No. ML 12188A721, Southern Nuclear Operating Company, Inc. (SNC or the licensee), submitted a license amendment request to change the Technical Specification to revise the minimum water level in the plant service water pump well. The Nuclear Regulatory Commission staff finds that additional information is needed as set forth in the Enclosure.

Please provide the additional information within thirty (30) days of the date of this letter. Sincerely, o Senior Project Manager Plant Licensing Branch 11-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-321, 50-366 cc w/encl: Distribution via Listserv REQUEST FOR ADDITIONAL INFORMATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION EDWIN I. HATCH NUCLEAR PLANT, UNITS 1 AND 2 (HNP) SOUTHERN NUCLEAR OPERATING COMPANY (SNC) 1. Please describe any alternatives considered for the proposed license amendment request (LAR) to revise the minimum water level referenced in Technical Specification Surveillance Requirements associated with the plant service water (PSW) system. 2. In 2004, the Nuclear Regulatory Commission staff (staff) prepared a revised biological assessment (ADAMS No. ML04191 0254) on the operational effects of the HNP on the endangered shortnose sturgeon, and the National Marine Fisheries Service (NMFS) concurred in 2005. Section 3.3, Environmental Evaluation, of the LAR does not specifically address the effects on endangered species. Please summarize any assessments conducted to address the effects on endangered species in general, and on the shortnose sturgeon, in particular.

Please clearly cite any documents or studies used to support the assessment.

3. As described on page E1-12 of the LAR, please provide the report and results documenting the modeling study that was performed to assess the potential environmental impacts of continuing plant operations down to a river level of 60.5 feet mean sea level (ft MSL). 4 The last paragraph on page E 1-12 of the LAR submittal states that: 'The calculated intake through-screen velocity at the 60.5 ft MSL river elevation is 0.12 feet per second (fps) higher than the calculated velocity at the 60.7 ft MSL river elevation." Please provide the through screen velocity at the 60.7 ft MSL river elevation that was used for the above comparison.

5 On page E 1-13 of the LAR, the applicant states that it did not observe any evidence of a significant change in impingement or entrainment during the drought period experienced in the Altamaha drainage basin during 2007 and 2008. Please provide data on the amount of impingement and entrainment during the drought period as compared to a non-drought period that led the applicant to the cited conclusion.

In addition, provide data, if available, on the through-screen velocity during the drought period and during the non-drought period. 6 Please provide a copy of HNP's current NPDES permit and discuss any changes or permitting revisions that would be necessitated by the proposed operational change. 7 Please provide a copy of HNP's current Georgia surface water withdrawal permit and discuss any changes or permitting revisions that would be necessitated by the proposed operational change. 8 Please provide the volume (in million gallons per day [MGD]) of surface water withdrawn annually by HNP, Units 1 and 2, from the Altamaha River (covering the last 5 years). ENCLOSURE September 11, 2012 Mr. M. J. Nuclear Licensing Southern Nuclear Operating Company, 40 Inverness Center Post Office Box 1295, Bin -Birmingham, AL EDWIN I. HATCH NUCLEAR PLANT, UNITS 1 AND 2 -REQUEST ADDITIONAL INFORMATION (TAC NOS. ME9004,

Dear Mr. Ajluni:

By letter dated July 5, 2012 (Agencywide Documents Access and Management System Accession No. ML 12188A721, Southern Nuclear Operating Company, Inc. (SNC or the licensee), submitted a license amendment request to change the Technical Specification to revise the minimum water level in the plant service water pump well. The Nuclear Regulatory Commission staff finds that additional information is needed as set forth in the Enclosure.

Please provide the additional information within thirty (30) days of the date of this letter. Sincerely, IRA! Robert E. Martin, Senior Project Manager Plant Licensing Branch 11-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-321,50-366 cc w/encl: Distribution via Listserv DISTRIBUTION PUBLIC LPL2-1R/F RidsNrrDorlLpl2-1 Resource RidsAcrsAcnw_MailCTR Resource RidsNrrDorlDpr Resource RidsRgn2MailCenter Resource RidsNrrLASFigueroa Resource RidsOgcRp Resource KFolk, NRR RidsNrrPMHatch Resource ADAMS A ccesslon N 0.: ML

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DORULPL2-1/BC DORLlLPL2-1/PM NAME RMartin SFigueroa AHull RPascarelli RMartin DATE 09/10/12 09/07/12 09/03/12 09111112 09/11/12 OFFICIAL RECORD COPY