ML042110428
| ML042110428 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 07/29/2004 |
| From: | Lanning W Division of Reactor Safety I |
| To: | Ray Lorson NRC/RGN-I/DRS/PEB |
| Modes M, NRC/DRS, 610-337-5198 | |
| References | |
| Download: ML042110428 (7) | |
Text
July 29, 2004 MEMORANDUM TO:
Raymond K. Lorson, Chief Performance Evaluation Branch Division of Reactor Safety, RI FROM:
Wayne D. Lanning, Director
/RA by R. V. Crlenjak Division of Reactor Safety Acting for/
Region I
SUBJECT:
MILLSTONE UNITS 2 AND 3 LICENSE RENEWAL INSPECTIONS Attached is the final version of the Millstone Station Units 2 and 3 License Renewal Inspection Plan. The plan, which was developed by Region I, is hereby approved. You are directed to use this plan to prepare and conduct the license renewal inspections at the Millstone Station Units 2 and 3.
Attachment:
Millstone Station Units 2 and 3 License Renewal Inspection Plan
Raymond K. Lorson 2
DOCUMENT NAME: C:\\ORPCheckout\\FileNET\\ML042110428.wpd After declaring this document An Official Agency Record it will not be released to the Public.
To receive a copy of this document, indicate in the box: "C" = Copy without attachment/enclosure "E" = Copy with attachment/enclosure "N" = No copy OFFICE RI/DRS RI/DRS NAME MModes (RKL for)
WLanning (RVC for)
DATE 07/23/04 07/29/04 07/ /04 07/ /04 07/ /04 OFFICIAL RECORD COPY
ATTACHMENT Millstone Station Units 2 and 3 LICENSE RENEWAL INSPECTION PLAN I.
PURPOSE This inspection plan specifies methods for implementing Manual Chapter 2516 requirements for activities relating to 10 CFR Part 54 (hereinafter referred to as the rule) and the Millstone Station Units 2 and 3 license renewal inspection program. This plan defines the scope of the inspections planned to verify that Millstone Stations license renewal program is in compliance with the requirements of the rule and is consistent with the license renewal application of Dominion Nuclear Connecticut, Inc. (hereinafter known as Dominion) and the staffs safety evaluation of Dominions license renewal application. The plan also provides guidance for inspection scheduling, inspector training, inspection activities, and resource requirements.
Dominions license renewal application identified the systems and structures that Dominion determined were within the scope of the rule. Page 4 of this document lists the systems and structures which are candidates for this inspection. The inspection team chose the systems and structure, after reviewing the scoping results provided in Millstone Stations license renewal application, on the basis of their risk significance, uniqueness to Millstone Station, and current issues. The scope and depth of inspections of these systems and structures may vary.
II.
OBJECTIVES The overall objective of this plan is to provide guidance for inspecting the implementation and effectiveness of the programs and activities associated with Dominions license renewal program. The inspection will verify there is reasonable assurance that the effects of aging will be adequately managed so that the intended function(s) of structures, and components, for which an aging management review is required, will be maintained consistent with the current licensing basis during the period of extended operation. Region I will implement the license renewal inspection plan at Millstone Station before NRR approves Dominions license renewal application to verify that Dominion meets the requirements of the rule and has implemented license renewal programs and activities consistent with the rule, the license renewal application, and the staffs safety evaluation report on the license renewal application.
III.
INSPECTION ACTIVITIES Inspection Procedure (IP) 71002, License Renewal Inspections, will be the primary procedure used to inspect Dominions implementation of the requirements of the rule. The latest revision of IP 71002 can be reviewed by accessing http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/ip71002.pdf 1.
The systems, structures, and groups which are candidates for inspection are identified as part of this plan. The selection of these systems and structures is based on risk significance and the importance of the safety function performed. The inspection team will verify that Dominion has implemented the scoping and screening process consistent with the rule and Dominions methodology, as described in the license renewal
2 application received by the NRC on January 22, 2004. The inspection team will also inspect a sample of the systems and structures that Dominion concluded were not within the scope of the rule, in order to verify that there is reasonable assurance that all systems and structures within the scope of 10 CFR 54.4 have been identified.
2.
The implementation of the screening activities required under 10 CFR 54.21(a)(1) will be inspected by reviewing system boundaries on plant drawings, intended functions, and the active/passive and short-/long-lived characteristics of the structures and components listed within the scope of Dominions aging management review.
3.
The inspection team will walkdown accessible portions of selected systems and structures to identify observable inconsistencies in the scoping and screening activities and any aging effects on the systems and structures that are not covered in the license renewal application. Aging effects identified by Dominion will be reviewed and evaluated during an NRR technical review. The inspection team will perform a sample review of related maintenance records of the selected systems and structures in an attempt to identify any previously unrecognized aging.
4.
The inspection team will inspect the aging management programs, including aging management programs where Dominion claims they are consistent with the Generic Aging Lessons Learned report, for important aging effects in selected systems and structures. The inspection team will examine records for existing aging management programs to evaluate the programs effectiveness and will review plans for new aging management programs. The inspection team will then document the teams findings on the effectiveness of the aging management programs to maintain the systems and structures intended function(s) consistent with the current licensing basis for the period of extended operation.
IV.
INSPECTION SCOPE The Millstone Station license renewal inspection activities will be implemented through two or more site inspections.
1.
The first inspection will last one week, or longer if necessary, and focus on the scoping and screening processes to verify that they have been implemented consistent with the rule, Dominions methodology, and the staffs safety evaluation of Dominions methodology. This inspection should be performed after the staff has completed its safety evaluation of the scoping and screening methodology, but before the SER is issued. The inspection will verify that there is reasonable assurance that Dominions scoping and screening processes have identified all of the systems, structures, and components for which an aging management review is required consistent with the requirements of the rule.
3 2.
In the second inspection, the team will spend one week at the site, return to the region for one week to review documents, begin to write the inspection report, adjust the inspection plan, if needed, and go back to the site for another week. This inspection will examine existing and proposed aging management programs and past results.
2.
If the open inspection items from the first two inspections warrant a third inspection, the team will followup on previous inspection activities and may inspect Dominion actions on any SER open items requested by NRR. This inspection may also include portions of the license renewal application updated by the applicant as a result of recent plant modifications.
V.
INSPECTION RESOURCES The inspection will need the following inspection resources:
1.
Inspectors
One team leader
Three inspectors, or more, from the region
One or more participants from the program office 2.
Skills The inspection team needs a cross-section of skills, including mechanical, material, civil/structural, and electrical engineering skills.
The scope of the third inspection (and, thus, the resources) will depend on how many open issues remain from the previous inspection activities.
4 SYSTEMS AND STRUCTURES WITHIN THE SCOPE OF LICENSE RENEWAL Unit 2 Systems 120 Volt AC Vital 125 Volt DC 4160 Volt 480 Volt Load Centers 480 Volt Motor Control Centers 6900 Volt Auxiliary Feedwater Chemical and Volume Control Condensate Storage and Transfer Containment Spray Control Element Drive Mechanism Control Element Drive Mechanism Cooling Diesel Generator Diesel Generator Fuel Oil Engineered Safety Features Actuation Feedwater Fire Protection Instrument Air Main Steam Primary Water Make Up Reactor Building Closed Cooling Water Reactor Coolant Reactor Protection Safety Injection Service Water Shutdown Cooling Station Blackout Diesel Generator Unit 2 Structures 345kV Switchyard Fire Pump House Fire Tank Foundation Millstone Stack Retaining Wall SBO Diesel Fuel Oil Storage Tank Foundation Sea Walls Unit 1 Turbine Building Auxiliary Building Containment Containment Enclosure Building Discharge Structure Refueling Water Storage Tank Foundation Turbine Building Unit 3 Systems 120 V AC Vital Bus 4016 kV 480 V Load Center 480 V Motor Control Center 6.9 kV Auxiliary Feedwater Auxiliary Steam Chemical and Volume Control Class 1E 125 V DC Power Containment Instrument Air Control Drive Mechanism CRDM Cooling Emergency Diesel Generators Engineered Safeguard Actuation Feedwater Fire Protection Instrument Air Main Steam Reactor Coolant Residual Heat Removal Safety Injection Service Water Solid State Logic Protection Steam Generator Blow Down Unit 3 Structures 345kV Switchyard Fire Water Tank Foundation Stack Railroad Canopy SBO Diesel Fuel Oil Tank Dike Sea Wall Security Diesel Generator Enclosure Fire Pump House Auxiliary Building Circulating and Service Water Pumphouse Condensate Storage Tank Foundation Control Building Encasement Fire Pump House Fuel Building Main Steam Valve Building Pipe Tunnel Refueling Water Storage Tank Foundation SYSTEMS AND STRUCTURES NOT WITHIN SCOPE OF LICENSE RENEWAL
5 Unit 2 Systems Feedwater Control System Plant Computer Unit 3 System Cathodic Protection Condenser Air Removal Unit 2 Structures Primary Grade Water Pump House Unit 3 Structures Quarry Discharge Area