ML091690459
| ML091690459 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 11/06/2008 |
| From: | Rodneshia Green Office of Nuclear Reactor Regulation |
| To: | Baty M, Conte R, Farrar K, Brian Holian, Jeffrey Kulp, Richmond J, Diane Screnci, Neil Sheehan, Williamson E Office of Nuclear Reactor Regulation, NRC/OGC, NRC Region 1 |
| References | |
| FOIA/PA-2009-0070 | |
| Download: ML091690459 (8) | |
Text
/ -
Elizabeth'Keiqhlev From: Rodneshia Green , N -
Sent: Thursday, November 06, 2008 11:38 AM To: Richard Conte; Karl Farrar; Brian Holian; Edward Williamson; Mary Baty; John Richmond; Jeffrey Kuip; Diane Screnci; Neil Sheehan
Subject:
Board Notification Oyster Creek .doc Attachments: Board Notification Oyster Creek .doc
.Draft for review.
RUUUnishia. Y1' (yF'IVC NIkI)LR Branch S.'e*treyI41 (301) 415-1183
( S \ ucL4*,
a ReguLWci)oR*, (omissia1 R ODNVES1A4. G REEN@~NR C. GO0 V
/
1 Tint
Received: from TWMS01 .nrc.gov (148.184.200.145) by R1 MS01.nrc.gov (148.184.99.10) with Microsoft SMTP Server (TLS) id 8.1.291.1; Thu, 6 Nov 2008 11:39:18 -0500 Received: from HQCLSTR01 .nrc.gov ([148.184.44.79]) by TWMS01 .nrc.gov
([148.184.200.145]) with mapi; Thu, 6 Nov 2008 11:39:18 -0500 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: binary From: Rodneshia Green <Rodneshia.Green@nrc.gov>
To: Richard Conte <Richard.Conte@nrc.gov>, Karl Farrar <KarI.Farrar@nrc.gov>,
Brian Holian <Brian.Holian@nrc.gov>, Edward Williamson
<Edward.Williamson@nrc.gov>, Mary Baty <Mary.Baty@nrc.gov>, John Richmond
<John.Richmond@nrc.gov>, Jeffrey Kulp <Jeffrey.Kulp@nrc.gov>, Diane Screnci
<Diane.Screnci@nrc.gov>, Neil Sheehan <Neil.Sheehan@nrc.gov>
Date: Thu, 6 Nov 2008 11:38:26 -0500
Subject:
Board Notification Oyster Creek .doc Thread-Topic: Board Notification Oyster Creek .doc Thread-Index: AcIALhd5SQ2CnySqSWWsKxi7 11 EF8Q==
Message-ID:
<83F82891AF9D774FBBB39974B6CB134F757A5F87B6@HQCLSTRO1.nrc.gov>
Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-Exchange-Organization-SCL: -1 X-MS-TN EF-Correlator:
<83F82891AF9D774FBBB39974B6CB134F757A5F87B6@HQCLSTRO1. nrc.gov>
MIME-Version: 1.0 Return-Path: Rodneshia.Green@nrc.gov
Board Notification 2008-MEMORANDUM TO: Chairman Klein Commissioner Jaczko Commissioner Lyons Commissioner Svinicki Atomic Safety and Licensing Board All Parties FROM: Brian E. Holian Director Division of License Renewal Office of Nuclear Reactor Regulation
SUBJECT:
NOTIFICATION OF INFORMATION IN THE MATTER OF OYSTER CREEK NUCLEAR GENERATING STATION LICENSE RENEWAL APPLICATION An appeal of the Atomic Safety and Licensing Board's decision in LBP-07-17 is pending before the Commission. Therefore, in accordance with the Commission's policy on notification to the Commission, the Staff is providing the following information.
During the late 1980's, the sand bed region near the bottom of the drywell shell on the outside was discovered to be corroded at the Oyster Creek Nuclear Power Plant. In 1992, the sand was removed from the sand bed region, and a three layer epoxy coating was applied to the sand bed region. As part of the commitments for License Renewal, a 100 percent visual inspection of the coating in the sand bed region was conducted in 2006. The next 100 percent inspection was planned for the current refueling outage, and then future inspections are planned of every other refueling outage (i.e. every four years).
The staff from AmerGen' Oyster Creek Nuclear Power Plant staff is currently conducting a refueling outage and NRC Region I staff is on site performing a license renewal commitment inspection. On October 31, 2008, the lead inspector for the license renewal commitment inspection received information that a blister was observed in the epoxy coating in the sand bed region of the drywell in one bay. The blister is located in bay 11 at the 11 foot three inch elevation very close to the ultrasonic test ("UT") location 1 1A. This was the only blister observed during ASME Code VT-2 visual inspection of the coating in all ten bays. On November 2, 2008, the inspector entered the affected bay and observed a blister. The blister is about one quarter of an inch in diameter with an approximately 6 inch brown stain, dry to the touch, trailing down from the blister. Three additional bumps were observed similar in size to the blister, were observed in the same area but without any evidence of a brown stain.
AmerGen briefed the state of New Jersey official, Region I, and NRC Headquarters staff on November 3, 2008, on planned repairs, apparent cause, and extent of conditions. During that call, the staff from AmerGen outlined the plans for the root cause analysis and repair plan for this area. Details of the plan were still being prepared at that time, but the plans are anticipated to include:
- Opportunities for the NRC to observe the excavation and examination of the defect; 0 Chemical analysis to determine the composition of the surface stain, specifically for the presence of iron;
- Removal of the coating over the blister and the bumps to assist in the examination;
- Carefully removing the blister to assist in the root cause analysis (e.g., is there on-going corrosion of the drywell shell;
- Conduct a UT scan from the inside of the drywell at the location of the blister;
- Repair of the coating in the disturbed area.
The repair plan was initiated on the evening of November 5, 2008. The blister was removed in tact and saved for further analysis. The stain was removed and retained for chemical analysis.
The bumps were removed with great difficulty because they were tightly adhered.
The staff will wait for the licensee to complete its analysis before making a decision on future actions (including an assessment of the appropriate inspection frequency.) Although this is considered to have very little safety significance at this time, a Board Notification was considered prudent due to interest in this drywall.
Docket No. 50-219 cc: See next page CONTACT: Donnie J. Ashley, NRR 301-415-3191
Oyster Creek Nuclear Generating Station cc:
Site Vice President - Oyster Creek Director - Licensing and Regulatory Affairs Nuclear Generating Station AmerGen Energy Company, LLC AmerGen Energy Company, LLC Correspondence Control P.O. Box 388 P.O. Box 160 Forked River, NJ 08731 Kennett Square, PA 19348 Senior Vice President - Manager Licensing - Oyster Creek Operations Support Exelon Generation Company, LLC AmerGen Energy Company, LLC Correspondence Control 4300 Winfield Road P.O. Box 160 Warrenville, IL 60555 Kennett Square, PA 19348 Kathryn M. Sutton, Esq. Regulatory Assurance Manager Morgan, Lewis, & Bockius LLP Oyster Creek 1111 Pennsylvania Avenue, NW AmerGen Energy Company, LLC Washington, DC 20004 P.O. Box 388 Forked River, NJ 08731 Patrick Mulligan, Chief Bureau of Nuclear Engineering Assistant General Counsel New Jersey Department of AmerGen Energy Company, LLC Environmental Protection 200 Exelon Way 25 Arctic Parkway Kennett Square, PA 19348 Ewing, NJ 08638 Ron Bellamy, Region I Vice President - Licensing and U.S. Nuclear Regulatory Commission Regulatory Affairs 475 Allendale Road AmerGen Energy Company, LLC King of Prussia, PA 19406-1415 4300 Winfield Road Warrenville, IL. 60555 Correspondence Control Desk AmerGen Energy Company, LLC Regional Administrator, Region I 200 Exelon Way, KSA 1-1 U.S. Nuclear Regulatory Commission Kennett Square, PA 19348 475 Allendale Road King of Prussia, PA 19406-1415 Oyster Creek Nuclear Generating Station Plant Manager Mayor of Lacey Township AmerGen Energy Company, LLC 818 West Lacey Road P.O. Box 388 Forked River, NJ 08731 Forked River, NJ 08731 Senior Resident Inspector License Renewal Manager U.S. Nuclear Regulatory Commission Exelon Generation Company, LLC P.O. Box 445 200 Exelon Way, Suite 230 Forked River, NJ 08731 Kennett Square, PA 19348
Oyster Creek Nuclear Generating Station cc:
Mr. Michael P. Gallagher Emily Krause Vice President License Renewal Law Clerk Exelon Generation Company, LLC Atomic Safety and Licensing Board 200 Exelon Way, Suite 230 Mail Stop: T-3F23 Kennett Square, PA 19348 U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Mr. Christopher M. Crane President and Chief Nuclear Officer Suzanne Leta Liou AmerGen Energy Company, LLC New Jersey Public Interest Research Group 4300 Winfield Road 11 N. Willow Street Warrenville, IL 60555 Trenton, NJ 08608 E. Roy Hawkens, Chair Donald Silverman, Esq.
Administrative Judge Morgan, Lewis & Bockius LLP Atomic Safety and Licensing Board 1111 Pennsylvania Ave., N.W.
Mail Stop: T-3F23 Washington, DC 20004 U.S. Nuclear Regulatory Commission Washington, DC 20555-0001. Alex S. Polonsky, Esq.
Morgan,, Lewis & Bockius LLP Anthony J. Baratta 1111 Pennsylvania Ave., N.W.
Administrative Judge Washington, DC 20004 Atomic Safety and Licensing Board Mail Stop: T-3F23 Raphael P. Kuyler, Esq.
U.S. Nuclear Regulatory Commission Morgan, Lewis & Bockius LLP Washington, DC 20555-0001 1111 Pennsylvania Ave., N.W.
Washington, DC 20004 Paul B. Abramson Administrative Judge Paul Gunter, Director Atomic Safety and Licensing Board Reactor Watchdog Project Mail Stop: T-3F23 Nuclear Information and Resource Service U.S. Nuclear Regulatory Commission 6930 Carroll Avenue, Suite 340 Washington, DC 20555-0001 Takoma Park, MD 20912 Office of the Secretary Kevin Kamps ATTN: Docketing and Service Reactor Watchdog Project
.Mail Stop: O-16G4, Nuclear Information and Resource Service U.S. Nuclear Regulatory-Commission 6930 Carroll Avenue, Suite 340 Washington, DC 20555-0001 Takoma Park, MD 20912 Office of Commission Appellate J. Bradley Fewell, Esq.
Adjudication Exelon Corporation Mail Stop: O-16G4 4300 Warrenville Road U.S. Nuclear Regulatory Commission Warrenville, IL 60555 Washington, DC 20555-0001
Oyster Creek Nuclear Generating Station cc:
Richard Webster, Esq.
Eastern Environmental Law Center 744 Broad Street, Suite 1525 Newark, NJ 07102 Julia LeMense, Esq.
Eastern Environmental Law Center 744 Broad Street, Suite 1525 Newark, NJ 07102 Manager Regulatory Assurance Oyster Creek Generating Station AmerGen Energy Company, LLC P.O. Box 388 Forked River, NJ 08731 Associate General Counsel Exelon Gernation Company, LLC 4300 Winfield Road Warrenville, IL 60555 Chief Operating Officer (COO)
AmerGen Energy Company, LLC 4300 Winfield Road Warrenville, IL 60555 Senior Vice President - Mid-Atlantic Operations AmerGen Energy Company, LLC 200 Exelon Way, KSA 3-N Kennett Square, PA 19348
AmerGen briefed the state of New Jersey official, Region I, and NRC Headquarters staff on November 3, 2008, on planned repairs, apparent cause, and extent of conditions. During that call, the staff from AmerGen outlined the plans for the root cause analysis and repair plan for this area. Details of the plan were still being prepared at that time, but the plans are anticipated to include:
" Opportunities for the NRC to observe the excavation and examination of the defect;
" Chemical analysis to determine the composition of the surface stain, specifically for the presence of iron;
- Removal of the coating over the blister and the bumps to assist in the examination;
- Carefully removing the blister to assist in the root cause analysis (e.g., is there on-going corrosion of the drywell shell;
- Conduct a UT scan from the inside of the drywell at the location of the blister;
" Repair of the coating in the disturbed area.
The repair plan was initiated on the evening of. November 5, 2008. The blister was removed in tact and saved for further analysis. The stain was removed and retained for chemical analysis.
The bumps were removed with great difficulty because they were tightly adhered.
The staff will wait for the licensee to complete its analysis before making a decision on future actions (including an assessment of the appropriate inspection frequency.) Although this is considered to have very little safety significance at this time, a Board Notification was considered prudent due to interest in this drywall.
Docket No. 50-219 cc: See next page CONTACT: David Pelton, NRR 301-415-2307 Accession Number: ML083110324 DISTRIBUTION:
SECY LHill DLR R/F OCA LLund RidsEdoMailcenter OGC DAshley RidsNrrDIr OPA RidsNrrOd CFO Accession Number: ML083110324 OFFICE LA:DLR OGC RI BC:RPB1 OGC (nlo) AD:DLR NAME DPelton BHolian I I/I UO LDATE 111/ /08 11/ /08 11/ /08 11/ /08 071 AL_ -- r1CRD bY