ML11298A085

South Texas Project, Units 1 and 2 - Response to Requests for Additional Information for License Renewal Application (TAC No. ME4938 and ME5122)

ML11298A085
Person / Time
Site:	South Texas
Issue date:	10/18/2011
From:	Powell G T South Texas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NOC-AE-1102748, TAC ME4938, TAC ME5122
Download: ML11298A085 (4)

Text

ALI,/WAMNuclear Operating CompanySouth Texas Pro/ect Electric GeneratinS Station PO. Bar 289 Wadsworth. Texas 77483 x* n*October 18, 2011NOC-AE-1 100274810CFR54STI: 33002386File: G25U. S. Nuclear Regulatory CommissionAttention: Document Control DeskOne White Flint North11555 Rockville PikeRockville, MD 20852-2746South Texas ProjectUnits 1 and 2Docket Nos. STN 50-498, STN 50-499Response to Requests for Additional Information for theSouth Texas Project License Renewal Application (TAC No. ME4938 and ME5122)Reference: 1. STPNOC Letter dated October 25, 2010, from G. T. Powell to NRC DocumentControl Desk, "License Renewal Application", (NOC-AE-1 0002607) (ML1 03010257)2. NRC letter dated September 28, 2011, "Requests for Additional Information for theReview of the South Texas Project License Renewal Application (TAC NOS.ME4938 AND ME5122)(ML1 1269A002)By Reference 1, STP Nuclear Operating Company (STPNOC) submitted the License RenewalApplication (LRA) for South Texas Project (STP) Units 1 and 2. By Reference 2, the NRC staffrequested additional information regarding clarification on inconsistent labeling of transmissionlines.There are no regulatory commitments in this letter.Should you have any questions regarding this letter, please contact either Arden Aldridge, STPLicense Renewal Project Lead, at (361) 972-8243 or Ken Taplett, STP License Renewal Projectregulatory point-of-contact, at (361) 972-8416.I declare under penalty of perjury that the foregoing is true and correct.Executed on ___-_________DateG. T. PowellVice President,GenerationKJTEnclosure:STPNOC Response to Requests for Additional Information NOC-AE-1 1002748Page 2cc:(paper copy)(electronic copy)Regional Administrator, Region IVU. S. Nuclear Regulatory Commission612 East Lamar Blvd, Suite 400Arlington, Texas 76011-4125Balwant K. SingalSenior Project ManagerU.S. Nuclear Regulatory CommissionOne White Flint North (MS 8B1)11555 Rockville PikeRockville, MD 20852Senior Resident InspectorU. S. Nuclear Regulatory CommissionP. 0. Box 289, Mail Code: MN1 16Wadsworth, TX 77483C. M. CanadyCity of AustinElectric Utility Department721 Barton Springs RoadAustin, TX 78704John W. DailyLicense Renewal Project Manager (Safety)U.S. Nuclear Regulatory CommissionOne White Flint North (MS 011-Fl)Washington, DC 20555-0001Tam TranLicense Renewal Project Manager(Environmental)U. S. Nuclear Regulatory CommissionOne White Flint North (MS O11FO1)Washington, DC 20555-0001A. H. Gutterman, EsquireKathryn M. Sutton, EsquireMorgan, Lewis & Bockius, LLPJohn RaganChris O'HaraJim von SuskilNRG South Texas LPKevin PolioRichard PenaCity Public ServicePeter NemethCrain Caton & James, P.C.C. MeleCity of AustinRichard A. RatliffAlice RogersTexas Department of State Health ServicesBalwant K. SingalJohn W. DailyTam TranU. S. Nuclear Regulatory Commission

Enclosure

NOC-AE-1 1002748Page 1 of 2STPNOC Response to Requests for Additional InformationSOUTH TEXAS PROJECTLICENSE RENEWAL APPLICATIONREQUESTS FOR ADDITIONAL INFORMATIONIssue:Clarification is needed on inconsistent labeling of transmission lines in submitted information.Back.ground:Section 2.1.7 of NUREG-1555 Supplement 1, Environmental Standard Review Plan forOperating License Renewal specifies the requirement: "the power transmission systemdescription is consistent, accurate, and given in sufficient detail," for the analysis in the draftsupplemental environmental impact statement. The staff requests clarification since thetransmission lines appear to be inconsistently labeled. Section 3.1.3 of STP Nuclear OperatingCompany's license renewal environmental report describes seven 345-kV lines that connectSouth Texas Project (STP), Units 1 and 2, to the regional electric grid: Velasco, Blessing, Hillje,Holman, Hill Country, Sky Line, and White Point loop. However, Section 3.7 of the STPcombined license environmental report (ER) describes nine 345-kV transmission lines thatconnect STP, Units 1 and 2, to the regional power grid. The nine lines described are givendifferent names than those in the license renewal application ER: DOW 18, DOW 27, WAP 39,Elm Creek 18, Hillje 64, Blessing 44, Elm Creek 27, Hillje 44, and Whitepoint 39.Requested information:Please provide the following clarifications:(a) how many lines connect STP to the regional power grid(b) the names of each lineSTP Response:(a) There are nine 345 kV transmission circuits connecting the STP switchyard to the regionalpower grid.(b) Figure 8.2-1 of the STP Updated Final Safety Analysis Report shows the nine 345 kVtransmission circuits connecting to the STP switchyard. The nomenclature of the nine lines inFigure 8.2-1 is consistent with the nomenclature in Section 3.7 of the STP combined licenseenvironmental report. Section 3.1.3 of the STP Nuclear Operating Company's licenserenewal environmental report describes the nine (vice seven as stated above) 345 kVtransmission circuits that connect to the STP switchyard from the regional electric grid. Thefollowing table and notes provide a cross-reference between the transmission circuitsdescribed in the combined license environmental report and the transmission circuitsdescribed in the license renewal environmental report.

Enclosure

NOC-AE-1 1002748Page 2 of 2Section 3.7 of the STP Section 3.1.3 of STPNOCCombined License ER License RenewalEnvironmental Report (ER)DOW 18 and DOW 27 Velasco(two lines) (two lines)Blessing 44 BlessingWAP 39 HillIje (W.A. Parrish Loop)Hillje 64 Hillje (Hillje Line)Hillje 44 HolmanElm Creek 18 Hill CountryElm Creek 27 SkylineWhitepoint 39 Lon Hill loopandWhite Point loopClarification Notes:1. The DOW 18 and DOW 27 lines are the same lines as the Velasco lines described inSection 3.1.3 of the License Renewal Application (LRA) Environmental Report (ER).Section 3.1.3 of the LRA ER states that Velasco is a double line. The Velasco lines areinterchangeably named as Velasco iNelasco 2 or DOW 18/DOW 27.2. The Blessing 44 line is the same line as the Blessing line described in Section 3.1.3 of theLRA ER.3. The WAP 39 line is the same line as the Hillje (W.A. Parrish loop) described in Section3.1.3 of the LRA ER. The W. A. Parrish loop is the same loop as the Hillje (Lon Hill loop)described in Section 3.1.3 of the LRA ER.4. The HilIje 64 line is the same line as the HilIje (Hillje Line) described in Section 3.1.3 of theLRA ER5. The Hillje 44 line is the same line as the Holman line described in Section 3.1.3 of the LRAER.6. The Elm Creek 18 line is the same line as the Hill Country line described in Section 3.1.3of the LRA ER.7. The Elm Creek 27 line is the same line as the Skyline line described in Section 3.1.3 of theLRA ER.8. The Whitepoint 39 line is the part of the pre-existing W. A. Parrish-to-Lon Hill line that waslooped into the STP substation described in Section 3.1.3 of the LRA ER. This linetransited from the STP substation to the Lon Hill substation. Subsequently, this line wasconnected to the White Point substation and the Lon Hill loop was looped into the WhitePoint substation.