ML101320723
| ML101320723 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 05/12/2010 |
| From: | Thomas Farnholtz Region 4 Engineering Branch 1 |
| To: | Halpin E South Texas |
| References | |
| IR-10-007 | |
| Download: ML101320723 (9) | |
See also: IR 05000498/2010007
Text
May 12, 2010
Mr. Edward D. Halpin
Executive Vice President and Chief Nuclear Officer
STP Nuclear Operating Company
P.O. Box 289
Wadsworth, TX 77483
SUBJECT:
SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION - INITIAL
INFORMATION REQUEST FOR NRC TRIENNIAL BASELINE COMPONENT
DESIGN BASES INSPECTION NRC INSPECTION REPORT
05000498/2010007 AND 05000499/2010007 ML101320723
Dear Mr. Conway
On July 26, 2010, the NRC will begin a triennial baseline Component Design Bases Inspection
at the STP Nuclear Operating Company. A six-person team will perform this inspection using
NRC Inspection Procedure 71111.21, "Component Design Bases Inspection."
The inspection focuses on components and operator actions that have high risk and low design
margins. The samples reviewed during this inspection will be identified during an information
gathering visit and during the subsequent in-office preparation week. In addition, a number of
operating experience issues will also be selected for review.
The inspection will include an information gathering site visit by the team leader and a senior
reactor analyst, and 3-weeks of onsite inspection by the team. The inspection will consist of
four NRC inspectors and two contractors, of which three inspectors will focus on engineering
and one inspector on operations. The current inspection schedule is as follows:
Onsite information gathering visit: Week of June 28, 2010
Preparation Week: July 19-23, 2010
Onsite weeks: July 26-30, 2010 and August 9-20, 2010
The purpose of the information gathering visit is to meet with members of your staff to identify
potential risk-significant components and operator actions. The lead inspector will also request
a tour of the plant with members of your operations staff and probabilistic safety assessment
staff. During the onsite weeks, several days of time will be needed on the plant-referenced
simulator in order to facilitate the development of operator action-based scenarios. Additional
information and documentation needed to support the inspection will be identified during the
inspection, including interviews with engineering managers, engineers, and probabilistic safety
assessment staff.
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION IV
612 E. LAMAR BLVD., SUITE 400
ARLINGTON, TEXAS 76011-4005
STP Nuclear Operating Company
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Our experience with these inspections has shown that they 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, we have enclosed a request for information
needed for the inspection. The request has been divided into three groups. The first group lists
information necessary for the information gathering visit and for general preparation. This
information should be available to the regional office no later than June 22, 2010. Insofar as
possible, this information should be provided electronically to the lead inspector. Since the
inspection will be concentrated on high risk/low margin components, calculations associated
with your list of high risk components should be available for review during the information
gathering visit to assist in our selection of components based on available design margin.
The second group of documents requested are those items that the team will need access to
during the preparation week in order to finalize the samples to be inspected. The third group
lists information necessary to aid the inspection team in tracking issues identified as a result of
the inspection. It is requested that this information be provided to the lead inspector as the
information is generated during the inspection. Additional requests by inspectors will be made
throughout all three onsite weeks for specific documents needed to complete the review of that
component/selection. 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 onsite portions of the inspection. 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.
The lead inspector for this inspection is Mr. Ronald A. Kopriva. We understand that our
licensing engineer contact for this inspection is Mr. Jamie Paul. If there are any questions about
the inspection or the requested materials, please contact the lead inspector at (817) 860-8104
or via e-mail at ron.kopriva@nrc.gov.
In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter will be
made available electronically for public inspection in the NRC Public Document Room or from
the Publicly Available Records (PARS) component of NRCs 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).
Sincerely,
/RA/
Thomas Farnholtz, Chief
Engineering Branch 1
Division of Reactor Safety
Dockets: 50-498; 50-499
Enclosure:
Component Design Basis Inspection
Document Request
STP Nuclear Operating Company
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cc w/enclosure:
Kevin Richards, Senior Vice President and
Assistant to CEO
STP Nuclear Operating Company
South Texas Project
P.O. Box 289
Wadsworth, TX 77483
David W. Rencurrel, Senior Site Executive
Senior Vice President Units 1 and 2
STP Nuclear Operating Company
South Texas Project
P.O. Box 289
Wadsworth, TX 77483
Louis Peter, Plant General Manager
STP Nuclear Operating Company
South Texas Project
P.O. Box 289
Wadsworth, TX 77483
Tim Powell, Vice President, Engineering
STP Nuclear Operating Company
South Texas Project
P.O. Box 289
Wadsworth, TX 77483
A. W. Harrison, Manager, Licensing
STP Nuclear Operating Company
South Texas Project
P.O. Box 289
Wadsworth, TX 77483
Charles T. Bowman, General Manager, Oversight
STP Nuclear Operating Company
South Texas Project
P.O. Box 289
Wadsworth, TX 77483
Marilyn Kistler
Senior Staff Specialist, Licensing
STP Nuclear Operating Company
South Texas Project
P.O. Box 289
Wadsworth, TX 77483
STP Nuclear Operating Company
- 4 -
Cheryl Mele
City of Austin
Electric Utility Department
721 Barton Springs Road
Austin, TX 78704
J. J. Nesrsta/R. K. Temple/
Ed Alercon/Kevin Pollo
City Public Service
P.O. Box 1771
San Antonio, TX 78296
Jon C. Wood
Cox, Smith, & Matthews
112 East Pecan, Suite 1800
San Antonio, TX 78205
A. H. Gutterman, Esq.
1111 Pennsylvania Avenue, NW
Washington, DC 20004
Richard A. Ratliff, P.E., L.M.P.
Radiation Safety Licensing Branch Manager
Division for Regulatory Services
Texas Department of State Health
Mail Code 2385
P.O. Box 14947
Austin, TX 78714-9347
Brian Almon
Public Utility Commission of Texas
P.O. Box 13326
Austin, TX 78711-3326
Environmental and Natural Resources
Policy Director, Office of the Governor
P.O. Box 12428
Austin, TX 78711-3189
Nate McDonald
Judge, Matagorda County
Matagorda County Courthouse
1700 Seventh Street
Bay City, TX 77414
STP Nuclear Operating Company
- 5 -
Anthony P. Jones, Chief Boiler Inspector
Texas Department of Licensing and Regulation
Boiler Division
E.O. Thompson State Office Building
P.O. Box 12157
Austin, TX 78711
Susan M. Jablonski
Office of Permitting, Remediation and Registration
Texas Commission on Environmental Quality
MC-122
P.O. Box 13087
Austin, TX 78711-3087
Ted Enos
4200 South Hulen, Suite 422
Fort Worth, TX 76109
Kevin Howell/Catherine Callaway/Jim von Suskil
NRG Energy, Inc.
1301 McKinney, Suite 2300
Houston, TX 77010
Chief, Technological Hazards
Branch
FEMA Region VI
800 North Loop 288
Federal Regional Center
Denton, TX 76209
STP Nuclear Operating Company
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Electronic distribution by RIV:
Regional Administrator (Elmo.Collins@nrc.gov)
Deputy Regional Administrator (Chuck.Casto@nrc.gov)
DRP Director (Dwight.Chamberlain@nrc.gov)
DRP Deputy Director (Anton.Vegel@nrc.gov)
DRS Director (Roy.Caniano@nrc.gov)
DRS Deputy Director (Troy.Pruett@nrc.gov)
Senior Resident Inspector (John.Dixon@nrc.gov)
Resident Inspector (Binesh.Tharakan@nrc.gov)
Branch Chief, DRP/A (Wayne.Walker@nrc.gov)
Senior Project Engineer, DRP/A (David.Proulx@nrc.gov)
STP Administrative Assistant (Lynn.Wright@nrc.gov)
Public Affairs Officer (Victor.Dricks@nrc.gov)
Public Affairs Officer (Lara.Uselding@nrc.gov)
Branch Chief, DRS/TSB (Michael.Hay@nrc.gov)
RITS Coordinator (Marisa.Herrera@nrc.gov)
Regional Counsel (Karla.Fuller@nrc.gov)
Congressional Affairs Officer (Jenny.Weil@nrc.gov)
OEMail Resource
OEDO RIV Coordinator (Leigh.Trocine@nrc.gov)
D. Norkin, NRR CDBI Coordinator (Donald.Norkin@nrc.gov)
SUNSI Review Completed: _X__Yes ____ ADAMS: Yes No Initials: _TRF__
Publicly Available Non-Publicly Available
Sensitive Non-Sensitive
R:\\REACTORS\\STP2010007 CDBI RFI - RAK
RIV:SRI:DRS/EB1
BC/EB1
RAKopriva
TFarnholtz
/RA/
/RA/
5/12/10
5/12/10
OFFICIAL RECORD COPY
T=Telephone E=E-mail F=Fax
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Enclosure
INFORMATION REQUEST FOR STP NUCLEAR OPERATING COMPANY POWER PLANT
COMPONENT DESIGN BASES (CDBI) INSPECTION
Inspection Report: 05000498/2010007
Information Gathering Dates:
June 28-July 1, 2010
On-site Inspection Dates:
July 26-30, 2010
August 9 - 20, 2010
Inspection Procedure:
IP 71111.21, "Component Design Bases Inspection"
Lead Inspector/Team Leader:
Ronald A. Kopriva
817-860-8104
Ron.kopriva@nrc.gov
I.
Information Requested Prior to the information Gathering Visit (June 22, 2010)
The following information (Section I of this enclosure) should be sent to the Region IV
office in hard copy or electronic format (ims.certrec.com and compact disc, preferred), in
care of Ronald A. Kopriva, by June 22, 2010 to facilitate the reduction in the items to be
selected for a final list during the preparation week of July 19-23, 2010. The inspection
team will finalize the selected list during the prep week using the additional documents
requested in Section II of this enclosure. The specific items selected from the lists shall
be available and ready for review on the day indicated in this request. *Please provide
requested documentation electronically in "pdf" files, Excel, or other searchable formats,
if possible. The information should contain descriptive names, and be indexed and
hyperlinked to facilitate ease of use. Information in "lists" should contain enough
information to be easily understood by someone who has knowledge of pressurized
water reactor technology. If requested documents are large and only hard copy formats
are available, please inform the inspector(s), and provide subject documentation during
the first day of the onsite inspection.
1.
An excel spreadsheet of equipment basic events (with definitions) including
importance measures sorted by risk achievement worth (RAW) and Fussell-
Vesely (FV) from your internal events probabilistic risk assessment (PRA).
Include basic events with RAW value of 1.3 or greater.
2.
Provide a list of the top 500 cut-sets from your PRA.
3.
Copies of PRA "system notebooks," and the latest PRA summary document.
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Enclosure
4.
An excel spreadsheet of PRA human action basic events or risk ranking of
operator actions from your site specific PSA sorted by RAW and FV. Provide
copies of your human reliability worksheets for these items.
5.
If you have an external events or fire PSA model, provide the information
requested in items 1-4 for external events and fire.
6.
Any pre-existing evaluation or list of components and associated 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, etc.).
7.
List of high risk maintenance rule systems/components and functions; based on
engineering or expert panel judgment.
8.
A list of operating experience evaluations for the last 2 years.
9.
A list of all time-critical operator actions in procedures.
10.
A list of permanent and temporary modifications sorted by component identified
in Item 1.
11.
List of current "operator work arounds/burdens."
12.
A list of the design calculations, which provide the design margin information for
components included in Item 1. (Calculations should be available during the
information gathering visit).
13.
List of root cause evaluations associated with component failures or design
issues initiated/completed in the last 5 years.
14.
Current management and engineering organizational charts.
15.
South Texas Electric Generating Station IPEEE, if available electronically.
16.
Mechanical piping drawings for:
Engineered safety features
Emergency core cooling systems
17
Electrical one-line drawings for:
Offsite power/switchyard supplies
Normal AC power systems
Emergency AC/DC power systems including
120VAC power, and
125VDC/24VDC safety class systems
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Enclosure
18.
List of any common-cause failures of components in the last 3 years.
19.
An electronic copy of the Design Bases Documents.
20.
An electronic copy of the System Health notebooks.
II.
Information Requested to be Available on First Day of Preparation Week (July 19,
2010)
1.
List of condition reports (corrective action documents) associated with each of
the selected components for the last 5 years.
2.
The corrective maintenance history associated with each of the selected
components for the last 2 years.
3.
Copies of calculations associated with each of the selected components (if not
previously provided), excluding data files. Please review the calculations and
also provide copies of reference material (such as drawings, engineering
requests, and vendor letters).
4.
Copies of operability evaluations associated with each of the selected
components and plans for restoring operability, if applicable.
5.
Copies of selected operator work-around evaluations associated with each of the
selected components and plans for resolution, if applicable.
6.
Copies of any open temporary modifications associated with each of the selected
components, if applicable.
7.
Trend data on the selected electrical/mechanical components performance for
last 3 years (for example, pumps performance including in-service testing, other
vibration monitoring, oil sample results, etc., as applicable).
8.
A copy of any internal/external self-assessments and associated corrective
action documents generated in preparation for the inspection.
9.
A copy of engineering/operations related audits completed in the last 2 years.
10.
List of motor operated valves (MOVs) in the program, design margin and risk
ranking.
11.
List of air operated valves (AOVs) in the valve program, design and risk ranking.
12.
Structure, system and components in the Maintenance Rule (a)(1) category.
13.
Site top 10 issues list.
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Enclosure
14.
Procedures used to accomplish operator actions associated with the basic
events in your PRA.
15.
List of licensee contacts for the inspection team with pager or phone numbers.
III.
Information Requested to be provided throughout the inspection.
1.
Copies of any corrective action documents generated as a result of the teams
questions or queries during this inspection.
2.
Copies of the list of questions submitted by the team members and the
status/resolution of the information requested (provide daily during the inspection
to each team member).
3.
Reference materials (available electronically and as needed during all onsite
weeks):
General set of plant drawings
IPE/PRA report
Procurement documents for components selected
Plant procedures (normal, abnormal, emergency, surveillance, etc.)
Technical Specifications
Updated Final Safety Analysis Report
Vendor manuals
Inspector Contact Information:
Ronald A. Kopriva - Team Lead
Senior Reactor Inspector
(817) 860-8104
Ron.kopriva@nrc.gov
Mailing Address:
US NRC, Region IV
Attn: Ronald A. Kopriva
612 East Lamar Blvd, Ste 400
Arlington, TX 76011