IR 05000269/2001001
| ML23194A105 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 05/29/2001 |
| From: | Plisco L Division Reactor Projects II |
| To: | Mccollum W Duke Energy Corp |
| References | |
| IR 2001001 | |
| Download: ML23194A105 (1) | |
Text
May 29, 2001
SUBJECT:
ANNUAL ASSESSMENT LETTER - OCONEE NUCLEAR STATION (NRC INSPECTION REPORT 50-269,270,287/01-01)
Dear Mr. McCollum:
On April 30, 2001, the NRC staff completed its end-of-cycle plant performance assessment of the Oconee Nuclear Station. The end-of-cycle review for Oconee involved the participation of all technical divisions in evaluating performance indicators (PIs) and inspection results for the period of April 2, 2000, to March 31, 2001. The purpose of this letter is to inform you of our assessment of your safety performance during this period and our plans for future inspections at your facility so that you will have an opportunity to prepare for these inspections and to inform us of any planned inspections which may conflict with your plant activities.
Overall, Oconee operated in a manner that preserved public health and safety and fully met all cornerstone objectives. The performance of Units 2 and 3 for the most recent quarter, as well as for the first three quarters of the assessment cycle, was within the Licensee Response Column of the NRCs Action Matrix, based on all inspection findings being classified as having very low safety significance (Green) and all PIs indicating performance at a level requiring no additional NRC oversight (Green). Unit 1 performance for the most recent quarter, as well as for the first three quarters of the assessment cycle, was within the Regulatory Response Column of the NRCs Action Matrix, based on an inspection finding of low to moderate safety significance (White)
in the mitigating system cornerstone. This White finding involved a design calculation performance deficiency associated with the spent fuel pool (SFP) being used as a source of water for high pressure injection (HPI). Because of the deficiency, Duke Energy Corporation failed to recognize that the SFP would be available for a time period significantly less than that assumed following certain postulated accidents involving tornados.
Subsequent to upgrading the Unit 1 reactor coolant pump (RCP) seals, which served to reduce the risk of a tornado induced loss of coolant accident due to RCP seal failure, the NRC conducted a supplemental inspection of the aforementioned White performance issue per Inspection Procedure 95001. The inspection determined that corrective actions taken to eliminate credit for the SFP as a HPI suction source constituted an unreviewed safety question which required NRC review and approval prior to implementation. As a result, the White performance issue was not closed and a followup inspection in accordance with Inspection Procedure 95001 will be conducted during the current assessment period.
In addition to the supplemental inspection addressed above, we plan to conduct baseline inspections at your facility through May 31, 2002. We also plan to perform other routine inspections of activities associated with your Independent Spent Fuel Storage Installation.
As you are aware, the following issues are still under review as part of the Significance Determination Process and supplemental inspections may also be warranted if these issues are determined to be of greater than very low safety significance (Green):
Unresolved Item (URI) 50-269/00-05-11 (Unit 1 mid-loop operations with containment purge valves that subsequently failed to hold design pressure and use of a temporary cover on the inner emergency personnel hatch to meet the requirements for containment closure)
URI 50-269,270,287/00-05-19 (potential vulnerability of a high energy line break causing a loss of the three 4KV safety related electrical busses)
URI 50-269,270,287/00-08-01 (potential high temperatures in the low pressure injection and high pressure injection pump rooms following loss of coolant accident scenarios)
URI 50-269,270,287/00-08-02 (potential flooding problem from non-safety related lines in the auxiliary building)
URI 50-269,270,287/00-08-03 (potential flooding problem from fire suppression systems in the cable spreading rooms)
URI 50-269,270,287/00-08-04 (uncontrolled design changes to penetration room blowout panels)
Apparent Violation (AV) 50-269, 270,287/01-08-05 (potential control room flooding issue from non-seismic piping)
AV 50-269,270,287/01-08-06 (inability to align station auxiliary service water within 40 minutes)
The enclosed inspection plan details the scheduled inspections that will occur through May 31, 2002. This inspection plan is provided to minimize the resource impact on your staff and to allow for scheduling conflicts and personnel availability to be resolved in advance of inspector arrival onsite. Routine resident inspections are not listed due to their ongoing and continuous nature.
For your information, the NRC is in the process of aligning the inspection and assessment cycle with the calendar year. In order to transition to a calendar year (CY) cycle (January 1 - December 31), the current inspection and assessment cycle will consist of only three quarters (i.e., the second, third, and fourth calendar quarters of CY 2001). As a result, for this transition period, the number of inspection activities have been modified accordingly and a mid-cycle review letter and accompanying inspection plan will not be issued.
In accordance with 10 CFR 2.790 of the NRCs Rules of Practice, a copy of this letter and its enclosure will be made 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/NRC/ADAMS/index.html (the Public Electronic Reading Room).
If circumstances arise which cause us to change our inspection plan, we will contact you to discuss the change as soon as possible. Please contact Robert Haag at (404) 562-4550 with any questions you may have regarding this letter or the inspection plan.
Sincerely,
/RA/
Loren R. Plisco, Director Division of Reactor Projects Docket Nos.:
50-269, 50-270, 50-287, 72-04 License Nos.: DPR-38, DPR-47, DPR-55, SNM-2503 Enclosure: Oconee Nuclear Station Inspection/Activity Plan cc w/encl:
Compliance Manager (ONS)
Duke Energy Corporation Electronic Mail Distribution Lisa Vaughn Legal Department (PB05E)
Duke Energy Corporation 422 South Church Street Charlotte, NC 28242 Anne Cottingham Winston and Strawn Electronic Mail Distribution Mel Fry, Director Division of Radiation Protection N. C. Department of Environmental Health & Natural Resources Electronic Mail Distribution Henry J. Porter, Assistant Director Div. of Waste Mgmt.
S. C. Department of Health and Environmental Control Electronic Mail Distribution R. Mike Gandy Division of Radioactive Waste Mgmt.
S. C. Department of Health and Environmental Control Electronic Mail Distribution County Supervisor of Oconee County 415 S. Pine Street Walhalla, SC 29691-2145 Lyle Graber, LIS NUS Corporation Electronic Mail Distribution Manager Nuclear Regulatory Licensing Duke Energy Corporation 526 S. Church Street Charlotte, NC 28201-0006 Peggy Force Assistant Attorney General N. C. Department of Justice Electronic Mail Distribution
Distribution w/encl:
D. LaBarge, NRR RIDSNRRDIPMLIPB PUBLIC PUBLIC DOCUMENT (circle one): YES NO OFFICE SIGNATURE rc rh NAME RCarroll RHaag DATE 5/24/2001 5/24/2001 E-MAIL COPY?
YES NO YES NO YES NO YES NO YES NO YES NO YES NO OFFICIAL RECORD COPY DOCUMENT NAME: I:\RPB1\Oconee\End of Cycle Reviews 2001\ASSESSLTRoco.wpd
Page 1 of 2 Oconee 06/01/2001 10:28:21 Inspection / Activity Plan 06/01/2001 - 05/31/2002 Inspection Type Inspection Activity Planned Dates Start End No. of Staff on Site Title Unit Number
- REQUAL INSPECTION Baseline Inspections 06/18/2001 06/22/2001 Licensed Operator Requalification IP 7111111B 1, 2, 3
MB MR
- MAINT RULE Baseline Inspections 07/16/2001 07/20/2001 Maintenance Rule Implementation IP 7111112B 1, 2, 3
- EMERGENCY PREPAREDNESS Baseline Inspections 08/06/2001 08/10/2001 Alert and Notification System Testing IP 7111402 1, 2, 3 Baseline Inspections 08/06/2001 08/10/2001 Emergency Response Organization Augmentation Testing IP 7111403 1, 2, 3 Baseline Inspections 08/06/2001 08/10/2001 Emergency Action Level and Emergency Plan Changes IP 7111404 1, 2, 3 Baseline Inspections 08/06/2001 08/10/2001 Correction of Emergency Preparedness Weaknesses and Deficiencies IP 7111405 1, 2, 3 Baseline Inspections 08/06/2001 08/10/2001 Performance Indicator Verification IP 71151 1, 2, 3
PS-SEC
- SECURITY Baseline Inspections 08/06/2001 08/10/2001 Access Authorization Program (Behavior Observation Only)
IP 7113001 1, 2, 3 Baseline Inspections 08/06/2001 08/10/2001 Access Control (Search of Personnel, Packages, and Vehicles: Identification and Authorization)
IP 7113002 1, 2, 3 Baseline Inspections 08/06/2001 08/10/2001 Performance Indicator Verification IP 71151 1, 2, 3
MB ISFSI
- ISFSI Other Routine 08/20/2001 08/24/2001 Operation Of An ISFSI IP 60855 1, 2, 3
MB MODS
- MODS & 50.59 Baseline Inspections 09/23/2001 09/27/2001 Evaluation of Changes, Tests, or Experiments IP 7111102 1, 2, 3 Baseline Inspections 09/23/2001 09/27/2001 Permanent Plant Modifications IP 7111117B 1, 2, 3
95001
- HPI PUMP SUCTION FROM SFP AFTER TORNADO Supplemental Program 10/01/2001 10/05/2001 Supplemental Inspection For One Or Two White Inputs In A Strategic Performance Area IP 95001 1, 2, 3
MB SGISI
- MB OUTAGE SG ISI Baseline Inspections 11/19/2001 11/21/2001 Inservice Inspection Activities IP 7111108
1 MB MODS
- MB MODS OUTAGE Baseline Inspections 11/26/2001 11/27/2001 Permanent Plant Modifications IP 7111117B
2 PS-RP
- RADIATION PROTECTION Other Routine 11/26/2001 11/30/2001 Operation Of An ISFSI IP 60855 1, 2, 3 Baseline Inspections 11/26/2001 11/30/2001 Access Control to Radiologically Significant Areas IP 7112101 1, 2, 3 Baseline Inspections 11/26/2001 11/30/2001 Performance Indicator Verification IP 71151 1, 2, 3
EB-FP
- FIRE PROTECTION PRE-INSPECTION VISIT Baseline Inspections 01/14/2002 01/18/2002 Fire Protection IP 7111105T 1, 2, 3
OL PREP
- INITIAL EXAM PREP Not Applicable 01/21/2002 01/25/2002 EXAMS AT POWER FACILITIES V23187
4 EB-FP
- FIRE PPOTECTION INSPECTION Baseline Inspections 02/04/2002 02/08/2002 Fire Protection IP 7111105T 1, 2, 3 This report does not include INPO and OUTAGE activities.
This report shows only on-site and announced inspection procedures.
Page 2 of 2 Oconee 06/01/2001 10:28:21 Inspection / Activity Plan 06/01/2001 - 05/31/2002 Inspection Type Inspection Activity Planned Dates Start End No. of Staff on Site Title Unit Number
OL EXAM
- INITIAL EXAM Not Applicable 02/04/2002 02/08/2002 EXAMS AT POWER FACILITIES V23187
3 OL EXAM
- INITIAL EXAM Not Applicable 02/11/2002 02/15/2002 EXAMS AT POWER FACILITIES V23187
1 PS-RP
- RADIATION PROTECTION Baseline Inspections 02/11/2002 02/15/2002 Radiation Monitoring Instrumentation IP 7112103 1, 2, 3 Baseline Inspections 02/11/2002 02/15/2002 Performance Indicator Verification IP 71151 1, 2, 3
PB1-PI&R
- PROBLEM IDENTIFICATION AND RESOLUTION Baseline Inspections 02/25/2002 03/15/2002 Identification and Resolution of Problems IP 71152 1, 2, 3
PS-RP
- RADIATION PROTECTION Baseline Inspections 03/25/2002 03/29/2002 Access Control to Radiologically Significant Areas IP 7112101 1, 2, 3 Baseline Inspections 03/25/2002 03/29/2002 ALARA Planning and Controls IP 7112102 1, 2, 3
PS-SEC
- SECURITY Baseline Inspections 04/08/2002 04/12/2002 Access Authorization Program (Behavior Observation Only)
IP 7113001 1, 2, 3 Baseline Inspections 04/08/2002 04/12/2002 Access Control (Search of Personnel, Packages, and Vehicles: Identification and Authorization)
IP 7113002 1, 2, 3 Baseline Inspections 04/08/2002 04/12/2002 Performance Indicator Verification IP 71151 1, 2, 3 This report does not include INPO and OUTAGE activities.
This report shows only on-site and announced inspection procedures.