ML091030612
| ML091030612 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 04/17/2009 |
| From: | Kalyanam N Plant Licensing Branch IV |
| To: | Entergy Operations |
| Kalyanam N, NRR/DORL/LPL4, 415-1480 | |
| References | |
| TAC ME0164 | |
| Download: ML091030612 (4) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555*0001 April 17. 2009 Vice President, Operations Entergy Operations, Inc.
Waterford Steam Electric Station, Unit 3 17265 River Road Killona, LA 70057-3093 SUB~IECT:
WATERFORD STEAM ELECTRIC STATION, UNIT 3 - REQUEST FOR ADDITIONAL INFORMATION RE: THE 2007 AND 2008 (REFUELING OUTAGE 15) STEAM GENERATOR TUBE INSPECTIONS (TAC NO. ME0164)
Dear Sir or Madam:
By letters dated May 20 and November 25, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML081440106 and ML083330083, respectively), Entergy Operations, Inc. (the licensee), submitted information pertaining to the 2007 mid-cycle and 2008 refueling outage 15 steam generator tube inspections at the Waterford Steam Electric Station, Unit 3. In addition to these reports, the U.S. Nuclear Regulatory Commission (NRC) staff summarized information concerning these inspections in letters dated November 23,2007, and February 20 and October 28, 2008 (ADAMS Accession Nos.
ML073190171, ML080510251, and ML081780404, respectively).
The NRC staff has reviewed the information provided in the Entergy submittals and determined that additional information is needed to complete its. The NRC staff discussed the requested information with Mr. R. Murillo and others of your staff on April 16, 2009. Mr. Murillo agreed to provide a response within 45 days of the receipt of this letter.
If you have any questions, please contact meat (301) 415-1480 or by electronic mail at kaly.kalyanam@nrc.gov.
Sincerely, ll~Ovv'--~
V
~
N. Kalyanam, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-382
Enclosure:
As stated cc w/encl: Distribution via Listserv
OFFICE OF NUCLEAR REACTOR REGULATION REQUEST FOR ADDITIONAL INFORMATION WATERFORD STEAM ELECTRIC STATION, UNIT 3 STEAM GENERATOR INSPECTION REPORTS FOR THE 2008 REFUELING OUTAGE DOCKET NUMBER 50-382 By letters dated May 20 and November 25, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML081440106 and ML083330083, respectively), Entergy Operations, Inc. (the licensee), submitted information pertaining to the 2007 mid-cycle and 2008 refueling outage (RFO) 15 steam generator (SG) tube inspections at the Waterford Steam Electric Station, Unit 3. In addition to these reports, the U.S. Nuclear Regulatory Commission (NRC) staff summarized information concerning these inspections in letters dated November 23,2007, and February 20 and October 28,2008 (ADAMS Accession Nos. ML073190171, ML080510251, and ML081780404, respectively).
The NRC staff has reviewed the licensee's information and determined that the following additional information is needed to complete the review:
- 1.
The information in Table E-1 is not legible. Please provide another copy of Table E-1.
- 2.
In Table E-1, SG-31 appears to have 8474 tubes in service prior to RFO 15 and 1176 tubes that were previously removed from service. These numbers do not agree with the total number of SG tubes (i.e., 9350 tubes). Please clarify the actual number of tubes in service and removed from service.
- 3.
In Table F-1, the total number of plugs listed for SG-32 is 1217; however, the numbers associated with the separate outages from the column "SG32 Plugs" sum to 1218, not 1217. The asterisk associated with the number 460 (for 2006) was not shown in your outage summary report for RFO 14 (fall 2006). Please verify the number of tUbes plugged in SG-32. Also, please discuss the tube that appears to be plugged in just one end (i.e., the tube referenced by the asterisk).
- 4.
In Section G of your November 25,2008, letter, you discuss condition monitoring, but the discussion on structural integrity limits only references the three times the normal operating differential pressure criterion. Please confirm that this criterion is the most limiting of the structural integrity performance criteria. If this is not the most limiting criterion, please discuss the extent to which the tubes satisfied all the structural integrity performance criteria.
- 5.
Please confirm that no crack-like indications were found in the U-bend region of Rows 1 and 2 and that no crack-like indications were found during your dent and ding examinations. If indications were identified, please discuss the nature of the indications and the size of the dent/ding (if applicable) and the basis for not expanding the inspection.
Enclosure
- 2
- 6.
Other than the free span indication in SG-31 in row 109, column 99, please discuss (and identify) whether any other free span indications (other than those near the top of the tubesheet) were detected.
- 7.
During a conference call in May 2008, preliminary results indicated that one tube had a 42 percent through wall (TW) wear indication. Please identify this tube and confirm it was plugged. Also, please confirm that all other wear indications greater than or equal to 40 percent TW were plugged.
- 8.
Please discuss whether any crack-like indications were found at or near locations with wear indications (e.g., at the same eggcrate location).
April 17, 2009 Vice President, Operations Entergy Operations, Inc.
Waterford Steam Electric Station, Unit 3 17265 River Road Killona, LA 70057-3093 SUB~IECT:
WATERFORD STEAM ELECTRIC STATION, UNIT 3 - REQUEST FOR ADDITIONAL INFORMATION RE: THE 2007 AND 2008 (REFUELING OUTAGE 15) STEAM GENERATOR TUBE INSPECTIONS (TAC NO. ME0164)
Dear Sir or Madam:
By letters dated May 20 and November 25, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML081440106 and IVIL083330083, respectively), Entergy Operations, Inc. (the licensee), submitted information pertaining to the 2007 mid-cycle and 2008 refueling outage 15 steam generator tube inspections at the Waterford Steam Electric Station, Unit 3. In addition to these reports, the U.S. Nuclear Regulatory Commission (NRC) staff summarized information concerning these inspections in letters dated November 23,2007, and February 20 and October 28,2008 (ADAMS Accession Nos.
ML073190171, ML080510251, and ML081780404, respectively).
The NRC staff has reviewed the information provided in the Entergy submittals and determined that additional information is needed to complete its. The NRC staff discussed the requested information with Mr. R. Murillo and others of your staff on April 16, 2009. Mr. Murillo agreed to provide a response within 45 days of the receipt of this letter.
If you have any questions, please contact me at (301) 415-1480 or by electronic mail at kaly.kalyanam@nrc.gov.
Sincerely, IRA!
N. Kalyanam, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No, 50-382
Enclosure:
As stated cc wlencl: Distribution via Listserv DISTRIBUTION:
PUBLIC LPLIV r/f RidsAcrsAcnw_MailCTR Resource RidsNrrDci/Csgb Resource RidsNrrLAJBurkhardt Resource RidsNrrDorlDpr Resource RidsNrrDorlLpl4 Resource RidsNrrPMWaterford Resource RidsOgcRp Resource RidsRgn4MailCenter Resource AJohnson, DCI/CSGB ADAM5 Accession No. ML091030612
- N o major c hange rom Staff prOVI'ded RAI OFFICE NRRlLPL4/PM NRRlLPL4/LA NRR/DCI/CSGB (A)
NRRlLPL4/BC NRR/LPL4/PM NAME NKalyanam JBurkhardt MYoder' MMarkley NKalyanam DATE 4/16/09 4/14/09 4/9/09 4/17/09 4/17/09 OFFICIAL RECORD COpy