ML13036A429
| ML13036A429 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 02/11/2013 |
| From: | John Hughey Plant Licensing Branch 1 |
| To: | Joyce T Public Service Enterprise Group |
| Hughey J NRR/DORL/LPL1-2 301-415-3204 | |
| References | |
| TAC ME9426 | |
| Download: ML13036A429 (3) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 February 11, 2013 Mr. Thomas Joyce President and Chief Nuclear Officer PSEG Nuclear LLC P.O. Box 236. N09 Hancocks Bridge, NJ 08038
SUBJECT:
HOPE CREEK GENERATING STATION - REQUEST FOR ADDITIONAL INFORMATION RE: IMPLEMENTATION OF LICENSE RENEWAL LICENSE CONDITIONS (TAC NO. ME9426)
Dear Mr. Joyce:
By letter dated July 19, 2012,1 PSEG Nuclear LLC (PSEG, the licensee), submitted a summary of results from the boroscopic examinations, ultrasonic thickness measurements, and leakage detections from penetrations associated with license conditions 2.C.26 and 2.C.27, for the Hope Creek Generating Station (Hope Creek). The renewed Operating License No. NPF-57 for Hope Creek was issued on July 20, 2011. The NRC staff has reviewed the licensee's letter dated July, 19, 2012, and has determined that additional information is required, as provided in the enclosure, in order to complete its review.
The draft questions were sent to Mr. Paul Du~e, 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 previousiy docketed. On February 4, 2013, Mr. Duke indicated that the licensee will submit a response by February 25, 2013.
If you have any questions, please contact me at (301) 415 w 3204.
Sincerely,
~~~
John D. Hughey, Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation' Docket No. 50-354
Enclosure:
Request for Additionai Information cc: Distribution via UstServ 1 Agencywide Doc:.nnent$ Access and Manage:T1ent System Accession No. ML12228A388.
REQUEST FOR ADDITIONAL INFORMATION IMPLEMENTATION OF LICENSE CONDITIONS 2.C.26 AND PARTIAL IMPLEMENTATION OF LICENSE CONDITION 2.C.27 PSEG NUCLEAR LLC HOPE CREEK GENERATING STATION DOCKET NUMBER 50-354 The renewed Operating License No. NPF-57 for Hope Creek Generating Station was issued on July 20,2011. By letter dated July 19, 2012, "License Renewal Commitment Implementation,"
(Agencywide Documents Access and Management System (ADAMS) Accession No. ML12228A388) PSEG Nuclear LLC, the licensee for Hope Creek Generating Station, submitted a summary of results from the boroscopic examinations, ultrasonic thickness measurements, and leakage detections from penetrations associated with license conditions 2.C.26 and 2.C.27.
To satisfy some of the licensing conditions included as part of the renewed license, the licensee was required to establish the drainage capability of drywell air gap drains, under the American Society of Mechanical EngineersSection XI, Subsection IWE aging management program by draining refueling water from the four 4-inch drywell air gap drains to eliminate the corrosive environment condition on the exterior surface of the carbon steel drywell shell, due to potential leakage of refueling water from the reactor cavity seal area to the lower steel containment drywell area. The NRC staff has determined that additional information is needed to complete the review.
The licensee stated that "[Alt a conservative corrosion rate of 5 mils per cycle the analysis limit would not be reached for over 9 cycles," on page 5 of the submittal dated July 19, 2012. The NRC staff was unable to verify that the thickness analysis limit would not be reached for over 9 cycles, considering the current margin of thickness of 32.5 mils that the licensee identified in refueling outage RF17, and by assuming a linear corrosion rate of 5 mils per cycle.
RAI-01
Provide a discussion that explains how the analysis limit for the thickness of steel containment drywell shell would not be reached for over 9 cycles.
Enclosure
February 11, 2013 Mr. Thomas Joyce President and Chief Nuclear Officer PSEG Nuclear LLC P.O. Box 236, N09 Hancocks Bridge, NJ 08038
SUBJECT:
HOPE CREEK GENERATING STATION - REQUEST FOR ADDITIONAL INFORMATION RE: IMPLEMENTATION OF LICENSE RENEWAL LICENSE CONDITIONS (TAC NO. ME9426)
Dear Mr. Joyce:
By letter dated July 19, 2012,1 PSEG Nuclear LLC (PSEG, the licensee), submitted a summary of results from the boroscopic examinations, ultrasonic thickness measurements, and leakage detections from penetrations associated with license conditions 2.C.26 and 2.C.27, for the Hope Creek Generating Station (Hope Creek). The renewed Operating License No. NPF-57 for Hope Creek was issued on July 20, 2011. The NRC staff has reviewed the licensee's letter dated July, 19, 2012, and has determined that additional information is required, as provided in the enclosure, in order to complete its review.
The draft questions were sent to Mr. Paul Duke, 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 February 4,2013, Mr. Duke indicated that the licensee will submit a response by February 25,2013.
If you have any questions, 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. 50-354
Enclosure:
Request for Additional Information cc: Distribution via ListServ 1 Agencywide Documents Access and Management System Accession No. ML12062A148 DISTRIBUTION:
RidsNrrPMHopeCreek Resource RidsNrrLAABaxter Resource RidsNrrDorlDpr Resource RidsRgn1 MailCenter Resource RidsNrrDorlLpl1-2 Resource LPLI-2 RtF RidsOgcRp Resource RidsAcrsAcnw MailCTR Resource PUBLIC Alstar, NRR/DLR/RASB RidsNrrDlrRasb Resource ADAMS Accession No.: ML13036A429
- via e-mail dated OFFICE LPL 1-2/PM LPL 1-2/LA DLR/R LPL1-2/BC LPL 1-2/PM NAME JHuqhey ABaxter
- MMal;)lldll MKhanna JHuqhey II UAII:::
102/11/2013 02/11/2013 01/11/2013 02/11/2013 02/11/2013 OFFICIAL RECORD COpy 1 Agencywide Documents Access and Management System Accession No. ML12228A388.