ML060800021
| ML060800021 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 03/20/2006 |
| From: | Ogle C NRC/RGN-II/DRS/EB1 |
| To: | Sumner H Southern Nuclear Operating Co |
| References | |
| IR-06-007 | |
| Download: ML060800021 (5) | |
See also: IR 05000321/2006007
Text
March 20, 2006
Southern Nuclear Operating Company, Inc.
ATTN: Mr. H. L. Sumner, Jr.
Vice President
P. O. Box 1295
Birmingham, AL 35201-1295
SUBJECT: NOTIFICATION OF EDWIN I. HATCH NUCLEAR PLANT COMPONENT
DESIGN BASES INSPECTION - NRC INSPECTION REPORT
05000321/2006007 AND 05000366/2006007
Dear Mr. Summer:
The purpose of this letter is to notify you that the U.S. Nuclear Regulatory Commission (NRC)
Region II staff will conduct a component design bases inspection at your Edwin I. Hatch
Nuclear Plant during the weeks of June 12-16, 2006, June 26-30, 2006, and July 10-14, 2006.
The inspection team will be led by Mr. George Hopper, a Senior Reactor Inspector from the
NRC's Region II Office. This inspection will be conducted in accordance with the baseline
inspection procedure, Procedure 71111.21, Component Design Bases Inspection, issued
December 2, 2005.
The inspection will evaluate the capability of risk significant / low margin components to function
as designed and support proper system operation. The inspection will also include a review of
selected operator actions, operating experience, and modifications.
During a telephone conversation on March 2, 2006, Mr. Hopper confirmed with Ms. Kathy
Underwood of your staff, arrangements for an information gathering site visit and the three-
week onsite inspection. The schedule is as follows:
- Information gathering visit: Week of May 22-26, 2006.
- Onsite weeks: June 12-16, 2006, June 26-30, 2006, and July 10-14, 2006.
The purpose of the information gathering visit is to meet with members of your staff to identify
risk-significant components and operator actions. Information and documentation needed to
support the inspection will also be identified. Mr. Rudy Bernhard, a Region II Senior Reactor
Analyst, may accompany Mr. Hopper and the inspection team during the information gathering
visit to review probabilistic risk assessment data and identify risk significant components which
will be examined during the inspection.
The enclosure lists documents that will be needed prior to the information gathering visit.
Please contact Mr. Hopper prior to preparing copies of the materials listed in the enclosure.
The inspectors will try to minimize your administrative burden by specifically identifying only
those documents required for the inspection preparation.
SNC 2
During the information gathering visit, the team leader will also discuss the following inspection
support administrative details: office space, supplemental documents requested to be made
available to the team in the Region II office prior to the inspection preparation week of May 28,
2006; arrangements for site access; and the availability of knowledgeable plant engineering and
licensing personnel to serve as points of contact during the inspection.
In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its
enclosure will be available electronically for public inspection in the NRC Public Document
Room or from the Publicly Available Records (PARS) component of NRC's document system
(ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-
rm/adams.html (the Public Electronic Reading Room).
Thank you for your cooperation in this matter. If you have any questions regarding the
information requested or the inspection, please contact Mr. Hopper at (404) 562-4645 or me at
(404) 562-4605.
Sincerely,
/RA/
Charles R. Ogle, Chief
Engineering Branch 1
Division of Reactor Safety
Docket Nos.: 50-321 & 50-366
Enclosure: Information Request for Hatch Nuclear Plant
Component Design Bases Inspection
cc w/enc: (See page 3)
SNC 3
cc w/encl:
J. T. Gasser Manager, Radioactive Materials Program
Executive Vice President Department of Natural Resources
Southern Nuclear Operating Company, Inc. Electronic Mail Distribution
Electronic Mail Distribution
Chairman
George R. Frederick Appling County Commissioners
General Manager, Plant Hatch 69 Tippins St., Suite 201
Southern Nuclear Operating Company, Inc. Baxley, GA 31513
Electronic Mail Distribution
Resident Manager
Raymond D. Baker Oglethorpe Power Corporation
Manager Licensing - Hatch Edwin I. Hatch Nuclear Plant
Southern Nuclear Operating Company, Inc. Electronic Mail Distribution
Electronic Mail Distribution
Senior Engineer - Power Supply
Arthur H. Domby, Esq. Municipal Electric Authority
Troutman Sanders of Georgia
Electronic Mail Distribution Electronic Mail Distribution
Laurence Bergen Reece McAlister
Oglethorpe Power Corporatioln Executive Secretary
Electronic Mail Distribution Georgia Public Service Commission
244 Washington Street, SW
Bentina C. Terry Atlanta, GA 30334
Southern Nuclear Operating Company, Inc.
Bin B-022
P. O. Box 1295
Birmingham, AL 35201-1295
Director
Department of Natural Resources
205 Butler Street, SE, Suite 1252
Atlanta, GA 30334
_________________________
OFFICE RII:DRS RII:DRS RII:DRP
SIGNATURE /RA/ /RA/ /RA/
NAME G. Hopper C. Ogle C. Rapp
DATE 3/10/06 3/20/06 3/20/06
E-MAIL COPY? YES NO YES NO YES NO YES NO YES NO YES NO YES NO
INFORMATION REQUEST FOR HATCH NUCLEAR PLANT
COMPONENT DESIGN BASES INSPECTION
Please provide the information electronically in .pdf files, Excel, or other searchable format on
CDROM. The CDROM should be indexed and hyperlinked to facilitate ease of use.
Information in lists should contain enough information to be easily understood to someone
who has a knowledge of boiling water reactor technology.
1. Risk ranking of components from your site specific probabilistic safety analysis (PSA)
sorted by Risk Achievement Worth (RAW) and sorted separately by Birnbaum
Importance. If possible, please provide a correlation between actual plant components
in plain language, and RAW values.
2. Provide a list of the top 500 cutsets from your PSA.
3. Risk ranking of operator actions from your site specific PSA sorted by RAW. Provide
copies of your human reliability worksheets for these items.
4. If you have an External Event or Fire PSA Model, provide the information requested in
Items 1 and 2 for external events and fire.
5. Any pre-existing evaluation or list of components and calculations with low design
margins (i.e., pumps closest to the design limit for flow or pressure, diesel generator
close to design required output, heat exchangers close to rated design heat removal,
MOV risk-margin rankings, etc.).
6. A list of the last two years of operating experience evaluations, modifications, and
corrective actions sorted by component or system.
7. Information of any common cause failure of components experienced in the last 5 years
at your facility.
Enclosure