IR 05000249/2007006
| ML070290588 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 01/29/2007 |
| From: | Ann Marie Stone NRC/RGN-III/DRS/EB2 |
| To: | Crane C Exelon Generation Co, Exelon Nuclear |
| References | |
| IR-07-006 | |
| Download: ML070290588 (8) | |
Text
January 29, 2007
SUBJECT:
DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3, INFORMATION REQUEST FOR AN NRC BIENNIAL BASELINE COMPONENT DESIGN BASES INSPECTION (CDBI) 05000237/2007006(DRS); 05000249/2007006(DRS)
Dear Mr. Crane:
On April 9, 2007, the NRC will begin a biennial baseline Component Design Bases Inspection (CDBI) at the Dresden Nuclear Power Station. A team of six inspectors will perform this 3-week inspection. This inspection will be performed in accordance with revised NRC Baseline Inspection Procedure (IP) 71111.21 and replaces the biennial Safety System Design and Performance Capability inspection.
The CDBI inspection focuses on components which have high risk and low design margins.
The components to be reviewed during this baseline inspection will be identified during an in-office preparation week prior to the first week of on-site inspection. In addition, a number of risk significant operator actions and operating experience issues, associated with the component samples, will also be selected for review.
The inspection will include three weeks of on-site inspection. The inspection team will consist of six NRC inspectors, of which, five will focus on engineering and one on operations. The current inspection schedule is as follows:
On-site weeks: April 9, 2007, April 23, 2007, and May 7, 2007 The team will be preparing for the inspection mainly during the week of April 2, 2007, as discussed in the attached enclosure. A Region III Senior Reactor Analyst may accompany the inspection team during the week of April 9, 2007, to review probabilistic risk assessment data and assist in identifying risk significant components, which will be reviewed during the inspection. Experience with previous baseline design inspections of similar depth and length has shown that these types of inspections are extremely resource intensive, both for the NRC inspectors and the licensee staff. In order to minimize the inspection impact on the site and to ensure a productive inspection for both parties, we have enclosed a request for information needed for the inspection.
It is important that all of these documents are up to date and complete in order to minimize the number of additional documents requested during the preparation and/or the on-site portions of the inspection. Insofar as possible, this information should be provided electronically to the lead inspector. The information request has been divided into three groups:
The first group lists information necessary for our initial inspection scoping activities.
This information should be available to the lead inspector no later than March 8, 2007.
By March 16, 2007, the lead inspector will communicate the initial selected set of 30 high risk components;
The second group of documents requested are those items needed to support our in-office preparation activities. This set of documents, including the calculations associated with the initial selected components, should be available at the Regional Office no later than March 28, 2007. During the in-office preparation activities, the team may identify additional information needed to support the inspection; and
The last group includes the additional information identified above, as well as plant specific reference material. This information should be available to the team on April 9, 2007. It is also requested that corrective action documents and/or questions developed during the inspection be provided to the lead inspector as the documents are generated.
The lead inspector for this inspection is Mr. John Jacobson. In order to facilitate the inspection, we request that a contact individual be assigned to each inspector to ensure information requests, questions, and concerns are addressed in a timely manner. If there are any questions about the inspection or the material requested in the Enclosure, please contact the lead inspector at (630) 829-9736 or via e-mail at jmj3@nrc.gov 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), accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
/RA/
Ann Marie Stone, Chief Engineering Branch 2 Division of Reactor Safety Docket No. 50-237; 50-249 License No. DPR-019; DPR-025 Enclosure:
Component Design Bases Inspection Document Request cc w/encl:
Site Vice President - Dresden Nuclear Power Station Dresden Nuclear Power Station Plant Manager Regulatory Assurance Manager - Dresden Chief Operating Officer Senior Vice President - Nuclear Services Senior Vice President - Mid-West Regional Operating Group Vice President - Mid-West Operations Support Vice President - Licensing and Regulatory Affairs Director Licensing - Mid-West Regional Operating Group Manager Licensing - Dresden and Quad Cities Senior Counsel, Nuclear, Mid-West Regional Operating Group Document Control Desk - Licensing Assistant Attorney General Illinois Emergency Management Agency State Liaison Officer Chairman, Illinois Commerce Commission