ML071240269

Summary of Telephone Conference Call Held on March 20, 2007, Between the U.S. Nuclear Regulatory Commission and Wolf Creek Nuclear Operating Corporation, Concerning Draft Requests for Additional Information Pertaining to the Wolf Creek, Uni

ML071240269
Person / Time
Site:	Wolf Creek  (NPF-042)
Issue date:	05/22/2007
From:	Veronica Rodriguez NRC/NRR/ADRO/DLR/RLRB
To:	Office of Nuclear Reactor Regulation
rodriguez v m, ADRO/DLR/RLRB, 415-3703
References
Download: ML071240269 (11)

Text

May 22, 2007 LICENSEE:

Wolf Creek Nuclear Operating Corporation FACILITY:

Wolf Creek Generating Station, Unit 1

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON MARCH 20, 2007, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND WOLF CREEK NUCLEAR OPERATING CORPORATION, CONCERNING DRAFT REQUESTS FOR ADDITIONAL INFORMATION PERTAINING TO THE WOLF CREEK GENERATING STATION, UNIT 1, LICENSE RENEWAL APPLICATION The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Wolf Creek Nuclear Operating Corporation held a telephone conference call on March 20, 2007, to discuss and clarify the staffs draft requests for additional information (D-RAIs) concerning the Wolf Creek Generating Station, Unit 1, license renewal application. The telephone conference call was useful in clarifying the intent of the staffs D-RAIs. provides a listing of the participants and Enclosure 2 contains a listing of the D-RAIs discussed with the applicant, including a brief description on the status of the items.

The applicant had an opportunity to comment on this summary.

/RA Yoira K. Diaz Sanabria for/

Verónica M. Rodríguez, Project Manager License Renewal Branch B Division of License Renewal Office of Nuclear Reactor Regulation Docket No. 50-482

Enclosures:

1. List of Participants

2. List of Draft Requests for Additional Information cc w/encls: See next page

ML071240269 OFFICE PM:RLRB:DLR LA:DLR BC:RLRB:DLR NAME VRodríguez (YKDS for)

YEdmonds RAuluck (BR for)

DATE 05/22/07 05/18/07 05/22/07 TELEPHONE CONFERENCE CALL WOLF CREEK GENERATING STATION, UNIT 1 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS MARCH 20, 2007 PARTICIPANTS AFFILIATIONS Verónica M. Rodríguez U.S. Nuclear Regulatory Commission (NRC)

Naeem Iqbal NRC Lorrie Bell Wolf Creek Nuclear Operating Corporation (WCNOC)

Charlie Medenciy WCNOC Deb Dixon WCNOC Rick Foust WCNOC Bill Selbe WCNOC Jeff Suter WCNOC Eric Blocher Strategic Teaming and Resource Sharing Alliance (STARS)

Rigel Davis STARS Richard Geiger STARS Tony Grenci STARS James Johnson STARS DRAFT REQUESTS FOR ADDITIONAL INFORMATION WOLF CREEK GENERATING STATION, UNIT 1 LICENSE RENEWAL APPLICATION MARCH 20, 2007 The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Wolf Creek Nuclear Operating Corporation held a telephone conference call on March 20, 2007, to discuss and clarify the following draft requests for additional information (D-RAIs) concerning the Wolf Creek Generating Station license renewal application (LRA).

Fire Protection System D-RAI 2.3.3.14-1 The LRA drawings listed below show fire protection system components not highlighted in green indicating that they are outside the scope of license renewal. The staff requests that the applicant verify whether these components are within the scope of license renewal in accordance with Title 10 Code of Federal Regulations (10 CFR) Part 54.4(a) and subject to an aging management review (AMR) in accordance with 10 CFR 54.21(a)(1). If not, the staff requests that the applicant provide a justification for their exclusion.

(a) LR-WCGS-KC-M-0022-1, Plant Service Water System, shows the following components outside the scope of license renewal:

one out of the four vertical pumps (1WS002P) and its associated components top portion of remaining three vertical pumps several flow drains (1W30102, 1W30103, etc.)

(b) LR-WCGS-KC-M-0023-1, Fire Protection Water System, shows the following components outside the scope of license renewal:

fire hydrant (1FP0138) and its associated components several flow drains (c) LR-WCGS-KC-M-0023-2, Fire Protection System, shows the following components outside the scope of license renewal:

several valves (d) LR-WCGS-KC-M-0028, Diesel Oil System, shows the following components outside the scope of license renewal:

flame arrester vent line fill cap assembly (e) LR-WCGS-KC-M-12KCO1, Fire Protection Turbine Building, shows the following components outside the scope of license renewal:

several line valves several sprinkler heads (f) LR-WCGS-KC-M-12KCO2, Fire Protection System, shows the following components outside the scope of license renewal:

several flow drains (reactor building, communications corridor, and auxiliary feedwater pipe chase area) valves V0281 and V04323 (communications corridor) sprinkler system (auxiliary boiler room) drain valve V0859 (auxiliary feedwater pipe chase area) several drains and valves (reactor building) lines and two valves (generator rooms A and B)

(g) LR-WCGS-KC-M-12KCO3, Fire Protection System, shows the following components outside the scope of license renewal:

several drain valves Discussion: The applicant indicated that the question is clear. The applicant informed the staff that the drawing discussed in Part (a) shows a depiction of the motor, not a portion of the pump. Based on this discussion with the applicant, the staff agreed to revise Part (a) as follows. The revised question will be sent as a formal RAI.

(a)

LR-WCGS-KC-M-0022-1, Plant Service Water System, shows the following components outside the scope of license renewal:

one out of the four vertical pumps (1WS002P) and its associated components several flow drains (1W30102, 1W30103, etc.)

D-RAI 2.3.3.14-2 The staff reviewed NUREG-0881, Supplement 5, Safety Evaluation Report Related To The Operation of Wolf Creek Generating Station, Unit No. 1, dated March 1985. NUREG-0881, Section 9.5.1.1, states that a separate jockey pump maintains the yard fire main pressure. The jockey pump and its associated components appear to have fire protection intended functions required for compliance with 10 CFR 50.48. The staff requests that the applicant verify whether the jockey pump and its associated components are within the scope of license renewal in accordance with 10 CFR 54.4(a) and subject to an AMR in accordance with 10 CFR 54.21(a)(1). If not, the staff requests that the applicant provide a justification for their exclusion.

Discussion: The applicant stated that the jockey pump is within the scope of license renewal and highlighted in license renewal drawing LR-WCGS-KC-M0023-1 as pump 1FP002P.

Therefore, this question is withdrawn and will not be sent as a formal RAI.

D-RAI 2.3.3.14-3 NUREG-0881, Supplement 5, Section 9.5.1.1, states that the fire pumps take suction from a common wet pit sump in the circulating water screenhouse. Two traveling water screens and the bar grill are located at the inlet to the sump serving the fire pumps. LRA Section 2.3.3.14 and Table 2.3.3.14 do not clearly state whether the traveling water screens and bar grill are included within the scope of license renewal. The staff requests that the applicant verify whether the traveling water screens and bar grill and their associated components are within the scope of license renewal in accordance with 10 CFR 54.4(a) and subject to an AMR in accordance with 10 CFR 54.21(a)(1). If not, the staff requests that the applicant provide a justification for their exclusion.

Discussion: The applicant indicated that the question is clear. This D-RAI will be renumbered and sent as formal RAI 2.3.3.14-2.

D-RAI 2.3.3.14-4 NUREG-0881, Supplement 5, Section 9.5.1.2, states that where safe-shutdown equipment is enclosed by a fire barrier, all walls, ceilings, floors, and associated penetrations that enclose the equipment have a minimum fire rating of three hours. LRA Section 2.3.3.14 and Table 2.3.3.14 do not clearly state whether fire barrier walls, ceilings, floor, slabs, and associated penetration seals are included within the scope of license renewal. The staff requests that the applicant verify whether these fire barrier walls, ceilings, floor, slabs, and associated penetration seals are within the scope of license renewal in accordance with 10 CFR 54.4(a) and subject to an AMR in accordance with 10 CFR 54.21(a)(1). If not, the staff requests that the applicant provide a justification for their exclusion.

Discussion: The applicant indicated that the question is clear. This D-RAI will be renumbered and sent as formal RAI 2.3.3.14-3.

D-RAI 2.3.3.14-5 LRA Table 2.3.3-14 excludes several types of fire protection components that are listed in NUREG-0881, Supplement 5, and/or the plants Updated Safety Analysis Report (USAR). In addition, the LRA drawings highlighted them in green as components within the scope of license renewal. The staff requests that the applicant verify whether the component listed below should be included in LRA Table 2.3.3.14. If not, the staff requests that the applicant provide a justification for their exclusion.

hose connections hose racks pipe fittings pipe supports couplings threaded connections restricting orifices interface flanges chamber housings heat-actuated devices gauge snubbers tank heaters Halon 1301 storage cylinders thermowells water motor alarms expansion joint filter housing gear box housing heat exchanger (bonnet) heat exchanger (shell) heat exchanger (tube) heater housing engine muffler (diesel driven fire pump) engine intake and exhaust silencers (diesel driven fire pump) orifice sight glass strainer housing turbocharger housing flexible hose latch door pull box pneumatic actuators actuator housing dikes storage tanks (fire water system) buried underground fuel oil tanks expansion tank jacket cooling water keepwarm pump and heater lubricating oil collection system components (reactor coolant pumps) lubricating oil cooler auxiliary lubricating oil makeup tank rocker lubricating oil pump water floor drains flame retardant coating for cables fire barrier penetration seals fire barrier walls, ceilings, floor, and slabs fire doors fire rated enclosures fire retardant coating for structural steel supporting wall and ceiling Discussion: The applicant indicated that the question is clear. This D-RAI will be renumbered and sent as formal RAI 2.3.3.14-4.

D-RAI 2.3.3.14-6 USAR Table 9.5.1-2 lists various types of fire water suppression systems. The staff requests that the applicant verify whether the fire water suppression systems in the areas listed below are within the scope of license renewal in accordance with 10 CFR 54.4(a) and subject to an AMR in accordance with 10 CFR 54.21(a)(1). If not, the staff requests that the applicant provide a justification for their exclusion.

Automatic water spray system:

hydrogen seal oil unit main transformer startup transformer auxiliary transformer station service transformer engineered safety feature transformer Automatic pre-action sprinkler system:

fuel building rail road bay lower cable spreading room upper cable spreading room cable trays (auxiliary building elevation 1974'-0", 2000'-0",

2026'-0") diesel generator rooms area below turbine generator (operating floor and mezzanine floor) turbine generator Automatic wet-pipe sprinkler system:

turbine lube oil storage room auxiliary boiler room turbine lube oil reservoir room condenser pit (area beneath the main condensers) dry waste compactor (radwaste building) access control area (control building) pipe space and tank area (control building) cable area above access control area vertical cable chases (auxiliary building) vertical cable chases (control building) auxiliary feedwater pipe chase area (auxiliary building) turbine building outage office Manual water spray system:

auxiliary feedwater pump (turbine driven) steam generator feed pump Manual pre-action sprinkler system:

north cable penetration (inside containment) south cable penetration (inside containment)

Discussion: The applicant indicated that the question is clear. This D-RAI will be renumbered and sent as a formal RAI 2.3.3.14-6.

D-RAI 2.3.3.14-7 LRA Section 2.3.3.14 discusses the total flooding Halon 1301 fire suppression system for control room trenches and chases, switchgear rooms, engineered safety feature switchgear rooms, motor-generator sets room, and electrical penetration rooms. USAR Table 9.5.1-2 also discusses the total flooding Halon 1301 fire suppression system for non-vital switchgear and transformer rooms, control cabinets, and load centers. However, the total flooding Halon 1301 fire suppression system for non-vital switchgear and transformer rooms, control cabinets, and load centers does not appear in LRA Section 2.3.3.14 as within the scope of the license renewal. The staff requests that the applicant verify whether the total flooding Halon 1301 fire suppression system for non-vital switchgear and transformer rooms, control cabinets, and load centers are within the scope of license renewal in accordance with 10 CFR 54.4(a) and subject to an AMR in accordance with 10 CFR 54.21(a)(1). If not, the staff requests that the applicant provide a justification for their exclusion.

Discussion: The applicant indicated that the question is clear. This D-RAI will be renumbered and sent as a formal RAI 2.3.3.14-6.

Letter to Wolf Creek Nuclear Operating Corporation, from V. Rodriguez, dated May 22, 2007

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON MARCH 20, 2007, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND WOLF CREEK NUCLEAR OPERATING CORPORATION, CONCERNING DRAFT REQUESTS FOR ADDITIONAL INFORMATION PERTAINING TO THE WOLF CREEK GENERATING STATION, UNIT 1, LICENSE RENEWAL APPLICATION DISTRIBUTION:

HARD COPY:

DLR RF E-MAIL:

PUBLIC RWeisman SSmith (srs3)

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Wolf Creek Generating Station cc:

Jay Silberg, Esq.

Pillsbury Winthrop Shaw Pittman, LLP 2300 N Street, NW Washington, DC 20037 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-7005 Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 311 Burlington, KS 66839 Chief Engineer, Utilities Division Kansas Corporation Commission 1500 SW Arrowhead Road Topeka, KS 66604-4027 Office of the Governor State of Kansas Topeka, KS 66612 Attorney General 120 S.W. 10th Avenue, 2nd Floor Topeka, KS 66612-1597 County Clerk Coffey County Courthouse 110 South 6th Street Burlington, KS 66839 Thomas A. Conley, Section Chief Radiation and Asbestos Control Kansas Department of Health and Environment Bureau of Air and Radiation 1000 SW Jackson, Suite 310 Topeka, KS 66612-1366 Vice President Operations/Plant Manager Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839 Supervisor Licensing Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839 U.S. Nuclear Regulatory Commission Resident Inspectors Office/Callaway Plant 8201 NRC Road Steedman, MO 65077-1032 Kevin J. Moles, Manager Regulatory Affairs Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839 Lorrie I. Bell, Project Manager Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839 Mr. James Ross Nuclear Energy Institute 1776 I Street, NW, Suite 400 Washington, DC 20006-3708