ML103480636
| ML103480636 | |
| Person / Time | |
|---|---|
| Site: | 05200012, 05200013 |
| Issue date: | 12/22/2010 |
| From: | Joseph S NRC/NRO/DNRL/BWR |
| To: | Tonacci M NRC/NRO/DNRL/BWR |
| Joseph, S, NRO/DNRL, 301-415-2849 | |
| References | |
| +reviewedgfw | |
| Download: ML103480636 (4) | |
Text
December 22, 2010 MEMORANDUM TO:
Mark Tonacci, Chief BWR Projects Branch Division of New Reactor Licensing Office of New Reactors FROM:
Stacy Joseph, Project Manager /RA Tekia Govan for:/
BWR Projects Branch Division of New Reactor Licensing Office of New Reactors
SUBJECT:
REGULATORY AUDIT
SUMMARY
OF SOUTH TEXAS PROJECT, UNITS 3 AND 4 COMBINED LICENSE APPLICATION CHEMICAL EFFECTS CALCULATIONS By letter dated September 24, 2008, STP Nuclear Operating Company (STPNOC) submitted South Texas Project (STP) Units 3 and 4 Combined License Application (COLA).
The staff audited the calculations for chemical effects in the suppression pool performed to support the Emergency Core Cooling System Suction Strainer Review for the STP COLA. The staff performed an audit of the calculations by reviewing the documents in STPs electronic reading room. A summary of the audit is enclosed.
Docket Nos.: 52-012 52-013
Enclosure:
As stated CONTACT:
Stacy Joseph, NRO/DNRL 301-415-2849
ML103480636 NRO-002 OFFICE DNRL/BWR/PM DNRL/BWR/LA DE/CIB1/TR DE/CIB2/BC DNRL/BWR/PM NAME SJoseph BAbeywickrama GMakar MNorato GWunder DATE 12/14/10 12/15/10 12/14/10 12/14/10 12/22/2010
COL - STP Nuclear - South Texas Mailing List (Revised 09/30/2010) cc:
Certrec Corporation M. A. McBurnett 4200 South Hulen, Suite 422 VP, Oversight/Regulatory Affairs Fort Worth, TX 76109 STP Nuclear Operating Company 4000 Avenue F, Suite A Mr. Brian Almon Bay City, TX 77414 Public Utility Commission William B. Travis Building Bill Mookhoek PO Box 13326 Licensing Supervisor 1701 North Congress Avenue STP Units 3 and 4 Austin, TX 78701-3326 Project Electric Generating Station P.O. Box 289 Ms. Michele Boyd Wadsworth, TX 77483 Legislative Director Energy Program Mr. Peter G. Nemeth Public Citizens Critical Mass Energy Crain, Caton & James, P.C.
and Environmental Program P.O. Box 289 215 Pennsylvania Avenue, SE Mail Code: N5005 Washington, DC 20003 Wadsworth, TX 77483 Mr. Ted Enos Mr. Terry Parks 4200 South Hulen Chief Inspector Suite 422 Texas Department of Licensing Ft. Worth, TX 76109 and Regulation Boiler Division Mr. Ed Halpin P.O. Box 12157 President & CEO Austin, TX 78711 STP Nulcear Operating Company P.O. Box 289 Kathy C. Perkins, RN, MBA Wadsworth, TX 77483 Assistant Commissioner Division for Regulatory Services Ms. Susan M. Jablonski Texas Department of State Health Services Office of Permitting, Remediation P.O. Box 149347 and Registration Austin, Texas 78714-9347 Texas Comm. on Env. Quality MC-122 Policy Director P.O. Box 13087 Environmental and Natural Resources Austin, TX 78711-3087 P. O. Box 12428 Austin, TX 78711-3189 Judge Matagorda County Mr. Frank M. Quinn Matagorda County Courthouse 8 Oak Avenue 1700 Seventh Street Gaithersburg, MD 20877-2705 Bay City, TX 77414 Page 1 of 4
COL - STP Nuclear - South Texas Mailing List Regional Administrator Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive Suite 400 Arlington, TX 76011-8064 Alice Hamilton Rogers, PE Inspections Unit Manager Texas Department of State Health Services P.O. Box 149347 Austin, Texas 78714-9347 Mr. Robert E. Sweeney IBEX ESI 4641 Montgomery Avenue Suite 350 Bethesda, MD 20814 Mr. Steve Winn STP Nuclear Operating Company 1301 McKinney, Suite 2300 Houston, TX 77010 Page 2 of 4
COL - STP Nuclear - South Texas Mailing List Email APH@NEI.org (Adrian Heymer) awc@nei.org (Anne W. Cottingham)
BrinkmCB@westinghouse.com (Charles Brinkman) chris.maslak@ge.com (Chris Maslak) cindyrae_52@yahoo.com cwaltman@roe.com (C. Waltman) david.lewis@pillsburylaw.com (David Lewis)
Derlinda.Bailey@chguernsey.com (Derinda Bailey) donald.woodlan@luminant.com (Donald Woodlan) dwstillwell@stpegs.com (Bill Stillwell) ed.burns@earthlink.net (Ed Burns) eliza.seedcoalition@gmail.com (Elza Brown) erg-xl@cox.net (Eddie R. Grant) gzinke@entergy.com (George Alan Zinke) jerald.head@ge.com (Jerald G. Head) jgutierrez@morganlewis.com (Jay M. Gutierrez) jim.riccio@wdc.greenpeace.org (James Riccio)
Joseph_Hegner@dom.com (Joseph Hegner) junichi_uchiyama@mnes-us.com (Junichi Uchiyama) karen@seedcoalition.org (Karen Hadden) kdrichards@stpegs.com (Kevin Richards)
KSutton@morganlewis.com (Kathryn M. Sutton) kwaugh@impact-net.org (Kenneth O. Waugh) lchandler@morganlewis.com (Lawrence J. Chandler) ldblaylock@cpsenergy.com (Larry Blaylock) louis.eichenberger@ge.com (Louis Eichenberger) mamcburnett@stpegs.com (Mark McBurnett)
Marc.Brooks@dhs.gov (Marc Brooks) maria.webb@pillsburylaw.com (Maria Webb) mark.beaumont@wsms.com (Mark Beaumont)
Mark.Crisp@chguernsey.com (Mark Crisp) matias.travieso-diaz@pillsburylaw.com (Matias Travieso-Diaz) maurerbf@westinghouse.com (Brad Maurer) media@nei.org (Scott Peterson)
MSF@nei.org (Marvin Fertel) nirsnet@nirs.org (Michael Mariotte)
Nuclaw@mindspring.com (Robert Temple) patriciaL.campbell@ge.com (Patricia L. Campbell)
Paul@beyondnuclear.org (Paul Gunter) pshastings@duke-energy.com (Peter Hastings)
RJB@NEI.org (Russell Bell) sabinski@suddenlink.net (Steve A. Bennett) sandra.sloan@areva.com (Sandra Sloan) sfrantz@morganlewis.com (Stephen P. Frantz)
Page 3 of 4
COL - STP Nuclear - South Texas Mailing List smhead@stpegs.com (Scott Head) stephan.moen@ge.com (Stephan Moen)
Tansel.Selekler@nuclear.energy.gov (Tansel Selekler) tom.miller@hq.doe.gov (Tom Miller)
Vanessa.quinn@dhs.gov (Vanessa Quinn)
Wanda.K.Marshall@dom.com (Wanda K. Marshall) wayne.marquino@ge.com (Wayne Marquino) wemookhoek@stpegs.com (Bill Mookhoek) william.maher@fpl.com (William Maher)
Page 4 of 4
SOUTH TEXAS PROJECT UNITS 3 AND 4 COLA CHEMICAL EFFECTS IN THE SUPPRESSION POOL CALCULATION AUDIT
SUMMARY
1. Background
The U.S. Nuclear Regulatory (NRC) staff issued requests for additional information (RAIs) as a part of its review of the South Texas Project (STP) Units 3 and 4 Combined License Application to ensure that STP has addressed the concerns in Generic Safety Issue 191 (GSI-191). RAIs 06.02.02-11, 06.02.02-29, and 06.06.02-30 requested STP provide additional information regarding potential chemical effects from aluminum, concrete, and inorganic (IOZ) zinc coatings exposed to the recirculating, post-accident coolant. To support the RAI responses, STP performed calculations to evaluate the potential dissolution of these materials and subsequent precipitation as solids that could affect head loss at suction strainers and/or downstream.
- 2. Regulatory Basis This regulatory audit is based on Title 10 of the Code of Federal Regulations (10 CFR) 50.46 and supported by Regulatory Guide 1.82 Revision 3.
- 3. Documents Reviewed Westinghouse Electric Company Calculation # CN-SEE-I-10-6, Revision 0, South Texas Project Units 3 & 4 Sensitivity Study on Aluminum Solubility in Suppression Pool, February 19, 2010.
Westinghouse Electric Company Calculation # CN-SEE-I-10-34, Revision 0, Chemical Effects in the Suppression Pool for South Texas Project (STP) 3 & 4, November 19, 2010.
- 4. Audit Results The staff reviewed the assumptions and input values for the applicants WCAP-16530-NP-A analysis and performed confirmatory calculations. The staff reviewed parameters such as surface area, mass, pH, temperature, and unit conversions. The review included aluminum, concrete, and zinc (from IOZ coatings), the three debris source materials identified in the RAIs listed above and analyzed by the applicant. For zinc, the staff also reviewed how the applicant converted a postulated mass of dissolved zinc to a mass of chemical debris, since this step is not performed for zinc in the WCAP-16530-NP-A spreadsheet. The staffs review and confirmatory calculations indicated that the applicants assumptions and input values were reasonable and the calculated debris quantities were consistent with the input values and calculation methodology.
Enclosure