ML020180172
| ML020180172 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 01/29/2002 |
| From: | Pickett D NRC/NRR/DLPM/LPD3 |
| To: | Campbell G FirstEnergy Nuclear Operating Co |
| Pickett, DV, NRR/DLPM/LPD III-2, 415-136 | |
| References | |
| TAC M93884, TAC M96162 | |
| Download: ML020180172 (5) | |
Text
January 29, 2002 Mr. Guy G. Campbell Vice President - Nuclear, Perry FirstEnergy Nuclear Operating Company P.O. Box 97, A200 Perry, OH 44081
SUBJECT:
PERRY NUCLEAR POWER PLANT, UNIT 1 - COMPLETION OF LICENSING ACTIONS FOR NRC BULLETINS 95-02 AND 96-03 (TAC NOS. M93884 AND M96162)
Dear Mr. Campbell:
On October 17, 1995, the U.S. Nuclear Regulatory Commission (NRC) issued Bulletin (BL) 95-02, Unexpected Clogging of a Residual Heat Removal (RHR) Pump Strainer While Operating in Suppression Pool Cooling Mode, to all holders of operating licenses or construction permits for boiling-water reactors. The NRC issued BL 95-02 to alert addressees of an event where a licensee initiated suppression pool cooling in response to a stuck-open safety relief valve and subsequently experienced clogging of an RHR pump suction strainer. In order to ensure that an unacceptable buildup of debris that could potentially clog suction strainers would not occur, addressees were requested to (1) perform an operability evaluation of all pumps which draw suction from the suppression pool based on an evaluation of suppression pool and suction strainer cleanliness conditions, (2) schedule a suppression pool cleaning, (3) review foreign material exclusion procedures of materials in the drywell, suppression pool, and systems that interface with the suppression pool, and (4) consider additional measures to detect clogging of emergency core cooling system (ECCS) suction strainers.
In BL 95-02, the NRC staff requested that licensees submit the following reports for each of their facilities:
1.
A description of planned actions, inspections and corrective actions for confirming their operability evaluation.
2.
A report confirming completion and summarizing actions taken.
In response to BL 95-02, you provided letters dated November 16, 1995, and April 25, 1996, for the Perry Nuclear Power Plant, Unit 1 (PNPP). Your letters indicated that you complied with the recommended actions of the BL and that based on testing, an evaluation of strainer and suppression pool conditions, and the cleanliness conditions of the containment and drywell, the suppression pool and the five ECCS pumps at PNPP were determined to be operable.
On May 6, 1996, the NRC issued BL 96-03, "Potential Plugging of Emergency Core Cooling Suction Strainers by Debris in Boiling-Water Reactors, to all holders of operating licenses or construction permits for boiling-water reactors. The NRC issued BL 96-03 to ensure that the ECCS in boiling-water reactors can perform their intended safety function to mitigate the effects
G. Campbell of a postulated loss-of-coolant accident. The BL provided three options for resolving this issue including (1) installation of large capacity passive strainers, (2) installation of self-cleaning strainers, or (3) installation of a backflush system.
In BL 96-03, the NRC staff requested that licensees submit the following reports for each of their facilities:
1.
A description of planned actions and mitigative strategies to be used, the schedule for implementation and proposed technical specification, if appropriate.
2.
A report confirming completion and summarizing actions taken.
In response to BL 96-03, you provided letters dated November 4, 1996, August 15, 1997, September 13, 1997, June 23, 1998, and October 3, 2001. You stated that you planned to install large capacity passive strainers which would be designed using the guidance in the Boiling Water Reactors Owners Group Utility Resolution Guidance (URG). The staff reviewed the URG and issued a safety evaluation on August 20, 1998. Your letter dated October 3, 2001, indicated that you had completed all actions requested by the bulletin. The staff concludes that PNPP has clearly taken a robust approach to the newly installed ECCS suction strainers. The strainers are designed to withstand significantly higher debris loadings than the staff-approved URG methodologies would have required for the strainer design criteria. PNPP has also implemented appropriate foreign material exclusion procedures to limit the potential for clogging the ECCS with materials brought into the drywell during outage operations.
The staff has reviewed your responses to both BL 95-02 and 96-03 and has determined that the actions taken should minimize the potential for clogging of ECCS suction strainers and ensure the capability of the ECCS to provide long-term cooling following a loss-of-coolant-accident as required by 10 CFR 50.46. The staff considers your actions responsive to the concerns raised in the bulletins. Therefore, BL 95-02 and 96-03 are closed for your facility.
Sincerely,
/RA/
Douglas V. Pickett, Sr. Project Manager, Section 2 Project Directorate III Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-440 cc: See next page
G. Campbell G. Campbell of a postulated loss-of-coolant accident. The BL provided three options for resolving this issue including (1) installation of large capacity passive strainers, (2) installation of self-cleaning strainers, or (3) installation of a backflush system.
In BL 96-03, the NRC staff requested that licensees submit the following reports for each of their facilities:
1.
A description of planned actions and mitigative strategies to be used, the schedule for implementation and proposed technical specification, if appropriate.
2.
A report confirming completion and summarizing actions taken.
In response to BL 96-03, you provided letters dated November 4, 1996, August 15, 1997, September 13, 1997, June 23, 1998, and October 3, 2001. You stated that you planned to install large capacity passive strainers which would be designed using the guidance in the Boiling Water Reactors Owners Group Utility Resolution Guidance (URG). The staff reviewed the URG and issued a safety evaluation on August 20, 1998. Your letter dated October 3, 2001, indicated that you had completed all actions requested by the bulletin. The staff concludes that PNPP has clearly taken a robust approach to the newly installed ECCS suction strainers. The strainers are designed to withstand significantly higher debris loadings than the staff-approved URG methodologies would have required for the strainer design criteria. PNPP has also implemented appropriate foreign material exclusion procedures to limit the potential for clogging the ECCS with materials brought into the drywell during outage operations.
The staff has reviewed your responses to both BL 95-02 and 96-03 and has determined that the actions taken should minimize the potential for clogging of ECCS suction strainers and ensure the capability of the ECCS to provide long-term cooling following a loss-of-coolant-accident as required by 10 CFR 50.46. The staff considers your actions responsive to the concerns raised in the bulletins. Therefore, BL 95-02 and 96-03 are closed for your facility.
Sincerely,
/RA/
Douglas V. Pickett, Sr. Project Manager, Section 2 Project Directorate III Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-440 cc: See next page DISTRIBUTION:
PUBLIC RElliot OGC DPickett GGrant, R3 PD III-2 r/f ACRS AMendiola THarris JHopkins DSkay ADAMS Accession #: ML020180172 OFFICE PM:LPD32 LA:LPD32 BC:SPLB SC:LPD32 NAME DPickett THarris JHannon AMendiola DATE 01/22/02 01/22/02 01/24/02 01/29/02 OFFICIAL RECORD COPY
G. Campbell Perry Nuclear Power Plant, Unit 1 FirstEnergy Nuclear Operating Company cc:
Mary E. O'Reilly FirstEnergy Corporation 76 South Main St.
Akron, OH 44308 Resident Inspector's Office U.S. Nuclear Regulatory Commission P.O. Box 331 Perry, OH 44081-0331 Regional Administrator, Region III U.S. Nuclear Regulatory Commission 801 Warrenville Road Lisle, IL 60532-4531 Sue Hiatt OCRE Interim Representative 8275 Munson Mentor, OH 44060 Gregory A. Dunn Manager - Regulatory Affairs FirstEnergy Nuclear Operating Company Perry Nuclear Power Plant P.O. Box 97, A210 Perry, OH 44081 William R. Kanda, Plant Manager FirstEnergy Nuclear Operating Company Perry Nuclear Power Plant P.O. Box 97, SB306 Perry, OH 44081 Mayor, Village of North Perry North Perry Village Hall 4778 Lockwood Road North Perry Village, OH 44081 Donna Owens, Director Ohio Department of Commerce Division of Industrial Compliance Bureau of Operations & Maintenance 6606 Tussing Road P. O. Box 4009 Reynoldsburg, OH 43068-9009 Carol OClaire, Chief, Radiological Branch Ohio Emergency Management Agency 2855 West Dublin Granville Road Columbus, OH 43235-7150 Mayor, Village of Perry P.O. Box 100 Perry, OH 44081-0100 Dennis Clum Radiological Assistance Section Supervisor Bureau of Radiation Protection Ohio Department of Health P.O. Box 118 Columbus, OH 43266-0118 Ohio Environmental Protection Agency DERR--Compliance Unit ATTN: Mr. Zack A. Clayton P.O. Box 1049 Columbus, OH 43266-0149 Chairman Perry Township Board of Trustees 3750 Center Road, Box 65 Perry, OH 44081 State of Ohio Public Utilities Commission East Broad Street Columbus, OH 43266-0573